ML20079S319
| ML20079S319 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 06/24/1983 |
| From: | Farrar D COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20079S256 | List: |
| References | |
| 6817N, NUDOCS 8307110434 | |
| Download: ML20079S319 (202) | |
Text
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r
/D Commonwealth Edison'
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) One First Nati;nal Plan, Chicigt, Illinois
\\ O 'J Address Reply to: Post Office Box 767
( / Chicago, Illiriois 60690 June 24, 1983 1
Mr. James G. Keppler, Regional Administrator
- Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road
-Glen Ellyn, IL 60137
Subject:
LaSalle County Station Units 1 and 2 Firecode CT Gypsum Cement Firestops NRC Inspection Report Nos.
50-373/82-54 and 50-374/82-22
(
NRC Docket Nos. 50-373 and 40-374 References (a):
R. L. Spessard letter to Cordell Reed dated April 28, 1983.
(b):
D. L. Farrar letter to J. G. Keppler dated May 27, 1983.
(c):
D. L. Farrar letter to J. G. Keppler dated June 10, 1983.
Dear Mr. Keppler:
The subject inspection report requested that we address the following issues concerning the fire endurance capability of U.S. Gypsum Firecode CT Gypsum cement firestops:.
1.
Cracking and separation 2.
Breakthroughs 3.
Cable density 4.
Deviation from test configurations 5.
Mixture control Attached is our response to these items and the documentation which justifies our position.
A list of the documentation that is enclosed is provided in Attachment 1.
As explained in Reference (c), our response regarding the Unit 1 wall penetrations will be submitted by August 5, 1983.
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J. G. Keppler June 24, 1983 To the best of my knowledge and belief the statements contained herein and in the attachment are true and correct.
In some respects these statements are not based on my personal knowledge but upon informa-tion furnished by other Commonwealth Edison and contractor employees.
Such information has been reviewed in accordance with Company practice and I believe it to be reliable.
If there are any further questions in this matter, please contact this office.
Very uly you
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D. L. Farrar Director of Nuclear Licensing 1m alN W'cc:
NRC Resident Inspector - LSCS 1/0 Attachment 6817N
w ATTACHMENT Engineering Response to Inspection Report No.'s 50-373/82-54 and 50-374/82-22 1.
Cracking and Separation The cracks and voids, which varied in width from hairline to 3/8", found in some penetration firestops of Firecode CT Gypsum Cement do not degrade the fire endurance capability of the seal.
Seven of the attached reports document cracking in fire seals that were successfully tested.
U.S. Gypsum (USG) fire test report no.'s 1, 3, 5, and 6 reference hairline cracks, USG report no. 7 and Transco report no.1 reference 1/8" wide cracks, and USG report no. 2 references 1/2" wide cracks.
The LaSalle penetration firestops also have a layer of Thermafiber CT Felt in addition to the gypsum cement. Although the felt by itself can not withstand the hose stream test, it will prevent the passage of flame and hot gases.
Successful tests on penetration firestops containing only Thermafiber CT Felt are documented in USG report no.'s 6, 7, and 8.
In test no. 6, the felt pre-vented the cables above a cable pan penetration from burning (see Detail D1).
USG report no. 7 also documents a successful three-hour test on a cable pan penetration in which only felt was installed around the pan.
USG report no. 8 documents a successful 25-hour test on many different types of penetrations containing only thermafiber. This test was terminated before three hours had expired because of problems with the penetrations containing galvanized pipes.
We consider a fire seal acceptable if it contains no cracks, voids, or sepa-rations greater than 3/8" wide. Cosmetic factors such as surface smoothness, ripples, craters, fine surface cracks, chips, gouges, and all other minor blemishes are also acceptable. Any crack in the CT Gypsum cement greater than 3/8" wide is to be cleaned and repaired with the gypsum cement.
2.
Breakthroughs Breakthroughs, the addition of cables to a seal, do not degrade the integrity of the firestop if the spaces around the new cables are filled with gypsum cement. USG report no. I and both Transco reports document successful three-hour fire tests on penetration firestops containing breakthroughs.
In the USG test, four cables were removed from two openings and two cables were added to two penetrations. Transco report no I documents a test on a penetration fire seal that four cables were added to. The second Transco report describes a
. test on a penetration fire seal with two breakthroughs. Although one of the two cables that were added ignited, no openings in the seal occurred. This cable was not qualifled to IEEE 383 and did not ignite due to the passage of flame or hot gases. The copper conductors in the cable transferred enough heat to cause the cable jacket on the unexposed side to auto-ignite.
Since breakthroughs do not degrade the fire seal because the new gypsum cement bonds to the old cement, there is no limit on the number of breakthroughs in the seal as long as the cable fill density has not been exceeded. A fire seal with "n+1" cables has the same integrity as a seal with "n" original cables and to which a cable is added.
3.
Cable Density I
No cable tray penetration in a three-hour fire rated wall in Unit 2 or in a three-hour fire rated floor in either unit has a cable density greater than the maximum density tested.
The maximum cable pan density tested is 40% for floor penetrations (USG report no.1 and both Transco reports) and 51% for wall penetrations (USG report no.'s 5 and 7). As documented by the S&L letters, no floor-penetration has a cable density greater than 40%, and the maximum density in a Unit 2 wall penetration is 49.1%.
For your information, the cable pan densi,ty is calculated by dividing the sum of the cross sectional area of the cables by the cross sectional area of the cable pan and multiplying by 100. The attached S&L letter dated June 17, 1983, explains the relationship between the c.ible pan density (CD) and the SAL design' index (DI) for vertical cable riser penetrations. For horizontal cable pan penetrations, the formula is:
CD = (TT/4) X DI X 100 2
As stated in reference (c), we will furnish our response regarding the Unit I wall penetrations by August 5, 1983.
4.
Deviation from Test Configurations The design of all the penetration firestops at LaSalle is verified by the at-tached test reports. The installed penetration seals are either identical or similar to at least one of the penetration configurations that were tested.
Some of the tests also represent a more severe service condition on this type of seal than it can experience in the plant because thermafiber felt was not used in the test or the stress on the test specimen was greater.
a.
Control Room Floor Penetrations The fire endurance capability of the control room floor penetrations is verified by the two attached Transco test reports. Transco report no.
TR-109 describes a three-hour fire test on a 32" X 109.5" penetration
+
containing Firecode CT Gypsum cement. Although the surface area of the test specimen is 26% smaller than the 28" X 170" control room floor pene-tration, they have similar configurations. Both penetrations are long and narrow and have the same thickness of gypsum cement. However, the test specimen was subjected to a more severe service condition because it had cable trays, which increase the loading and heat conduction, and tnerma-fiber felt only inside the cable trays. The control room floor penetration fire seals have no cable trays and have a layer of felt throughout the seal. The test specimen is also four inches wider, and for these typescof penetrations, the maximum stress that the seal can withstand decreases as the width increases but varies very little with changes in the length.
Therefore, the heat transfer rate per unit area and the stress on the test penetration is greater.
l
The other Transco report describes a test on a 5' X 6' penetration which is only 10%. smaller than the 28" X 170" centrol room floor penetration.
This test also represents a more severa service condition for the firestop because the test specimen had eight cable trays and no thermafiber felt.
The stresses at the side of the test seal are also greater because the hose stream produces a greater bending moment, and the gypsum cement has less surface area to adhere to than in long and narrow type penetrations.
b.
Floor Penetrations with 12" X 30" Cable Trays Although none of the attached reports describe a test on a penetration firestop with a 12" X 30" cable tray, many of them describe tests on pene-documentatestona30"X4"and36"X4"cabletrdy,portno.'s1and4 trations with similar or multiple cable trays.
USG re respectively. The Transco reports describe tests on penetration seals with three and eight cable trays and the sum of the cross sectional area of the cable trays used in each test is greater than the 12" X 30" cable tray. This increases the heat transfer rate and loading of the seal. Thus, the test specimens were subject to a more severe service condition than the field installations can experience.
5.
Mixture Control The attached USG letters provide additional information regarding Firecode CT Gypsum Cement. The June 8,1983, letter describes what gypsum cement is, how it is made, what happens when water is mixed with it, and how temperature af-fects it. The other USG letter furnishes additional information on the water-to-plaster ratio and the dry density range. As explained in these letters, the effectiveness of the gypsum cement fire seal is not a function of this ratio or density, it is dependent on the integrity of the seal after it is installed.
Therefore, based on the inspection results, we consider the seals to be operable.
Please note that USG Research Center analyzed a portion of a seal that had been 3
removed and found that its density was within the range of 25 to 30 lbs/ft.
V e.'
List of Attached Documentation A.
U.S. Gypsum Fire Test Reports 1.
Concrete Floor Fire Stop Test of Nonqualified IEEE 383 Cable Penetrations Protected with Firecode CT Gypsum and Thermafiber Felt dated March 14, 1980.
2.
Fire Stop Systems Without Cable in a Three-Hour Fire Rated Wall dated September 6, 1979.
3.
Concrete Floor Fire Stop Test of IEEE Qualified Cable Penetrations dated August 13, 1979.
4.
Poke-Thru Wall Fire Test dated May 21, 1979.
5.
Firestop Systems for Electric Cable Penetrations Thru Three-Hour Fire Rated Wall dated March 20, 1979.
6.
Fire Test of Concrete Floor Slab with Electrical Cable Penetration Firestops dated December 7,1978.
7.
Firecode CT Gypsum Thermaffber Access Firestopping for Walls dated July 24, 1978.
8.
Thermafiber Access Firestopping for Floors dated June 19, 1978.
B.
Transco Fire Test Reports 1.
Report No. TR-109, Fire and Hose Stream Tests of TC0-001 Cement (USG Firecode CT Gypsum Cement), dated April 7, 1983.
2.
Fire Endurance Test on Transco Penetration Seal Systems in a Concrete Floor Utilizing Firecode CT Gypsum Cement dated August 5, 1981.
C.
Letters 1.
June 17, 1983, letter from Mr. J.S. Esterman of S&L to Mr. T.E. Watts (SCE-1829).
2.
June 14, 1983, letter from Mr. J.S. Esterman of S&L to Mr. T.E. Watts (SCE-1827).
3.
June 8,-1983, letter from Mr. R.G. Lange of USG to Mr. E.L. Seckinger.
4.
June 3,1983, letter from Mr. R.L. Bartlett of USG to Mr. E.L. Seckinger.
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ARMARD H. GUSVAFERRO PE.SE LESLIE D. MARTIN PE,SE GERALD E. GOETVSCHE PE SE THE CONSULTING E N G l 'N E E R S GROUP INC.
Glenview, Illinois (Chicago Suburb) 60025 312 729-0646 1701 E. Lake Avenue a
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Aug0st 13,1979 i
UNITED STATES GYPSUM COMPANY 1000 East Northwest Highway l
Des Plaines, IL 60016 l
9 Gentlemen:
Attached is a report, " CONCRETE FLOOR FIRE STOP TEST OF 1EEE 383 QUALIFIED l
CABLE PENETRATIONS", by D. L. Orals and P. S. Quigg. The report describes a fire test conducted at the United States Gypsum Company Research Center on April 26,1979. The assembly was tested in accordance with IEEE Standard Cable Penetration Firestop Qualification Test Procedure 634-1978.
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The purpose of the test was to determine the effectiveness of the system employing THERMAFIBER and FIRECODE CT G,YPSUM for " fire-stopping" cable penetrations through floors. The specimen consisted of a 6-in. solid concrete floor with several openings. Cables were placed within cable trays which penetrated through four of the openings, and groups of cables.were placed through several circular openings. The spaces within the openings around the cables were firestopped by a combination of FIRECODE CT GYPSUM and THERMAFIBER.
The underside of the floor was subjected to a standard (ASTM E119) fire exposure for three hours. Temperatures of the cables on th'e unexposed surface were moni-tored throughout the test. None of the cables ignited beyond the unexposed sur-
[
face and none of the recorded temperatures reached 700 F. After the fire test the fire-exposed surface was subjected to a 30-psi hose stream test. All but one 1
of the firestopped assemblies withstood the hose stream test.
it is my judgment that the report presents.the data accurately.
Respectfully submitted,
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, a Armand H. CustaferroI N
Registered Structural Engineer No. 2917 U
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gy State of Illinois I.
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UNITED STATES GYPSUM COMPANY 1000 East Northwest Highway / Des Plaines, Illinois 60016. RESEARCH CENTER AREA CODE 3et CYPRESS 9-3387
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CONCRETE FLOOR FIRE-STOP TEST OF IEEE 383 QUALIFIED CABLE PENETRATIONS t
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S. QUIGG, P.E.
RESEARCH ASSOCIATE MGR. STRUCTURAL AND FIRE TESTING 9
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INTRODUCTION 4 s
A concrete slab containing both circular and rectangular openings with IEEE 383 qualified electrical power and control cable was sub-jected to fire exposure at the United States Gypsum Company's Research Center in Des Plaines, Illinois.
The purpose of this investigation was to determine the effective-ness of the system employing USG FIRECODE CT. Gypsum and THERMAFIBER CT i
Felt for " fire-stopping" the area where the cables penetrate the floor.
The slab thickness was 6 inches; to simulate the behavior of thicker floors, metal sleeve retainers were placed above the openings providing a deeper fire-stop detail.
SAMPLE PREPARATION:
A floor slab, sized to fit the floor furnace in the U.S.G.
fire test facility, was cast of lightweight concrete, 6 in. thick, containing four rectangular and twelve circular. openings as shown in Fig. 1.
All the openings, except H and N, were fitted with 3 in. high, sheet metal collars fastened in place with 1/4 in. by 1-3/4 in. TAPCON anchors.
Opening N received a 6 in, high collar and opening H had no collar.
A 3/8 in. bead of silicone caulking was placed between the collar flange I
and concrete surfaces to ensure a watertight seal.
Cables, 6 ft long, extending one foot below the underside of the slab, were placed in the openings.
A description of the cables is given in TABLE I and the distribution, quantity, and area are shown in TABLE II.
Sketches showing the details of the fire'-stop are shown on Figs.'3 and 4.
THERMAFIBER CT Felt (nominal 4 pounds per cubic foot density), 4 in.
1 thick, was cut to the approximata shape of the opening and fitted between the concrete floor and cables.
Remaining voids adjacent to the cable were filled with small pieces of felt to complete the seal.
In areas
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where the felt needed support, wire baskets formed as shown on Fig. 5 were installed.
FIRECODE CT ' Gypsum in 40 pound bags was mixed with 68 to 70 pounds of water in a Carrousel mixer and sprayed between and around the cables in the openings to a depth of-5 inches above the felt.
The gypsum was 5
mixed with an accelerator at the nozzle during spraying to produce a set time of 10 to 15 minutes.
All the openinhs.were filled with FIRECODE CT Gypsum except opening I which was filled with vermiculite concrete.
The proportions of the vermiculite concrete were 15.6 pounds of port-land cement to 1 cubic foot vermiculite to 3.6 gallons water.
The fire-stops were forced-air dried for a minimum 9 days prior to testing.
INSTRUMENTATION:
Locations of the thermocouples on the sample are shown on Fig.
2.
Temperatures were recorded on the unexposed surface of the concrete floor and on the fire-stop details as well as on the jackets of the cables a,nd on the cable trays at the interface of the unexposed face of the floor as outlined in "IEEE Standard 634-1978."
j TEST PROCEDURE :
The specimen was subjected to a fire programmed in accordance with the ASTM E119 time-temperature curve (as required by IEEE 634-1978).
Furnance temperatures were monitored and controlled by five thermocouples enclosed in protection tubes distributed throughout the furnace, located 12 inches below the exposed surface of the floor (see Graph 10).
TEST RESULTS :
The fire endurance test was conducted on April 26, 1979, at the United States Gypsum Company Research Center.
Following is a record j
of observed events as they occurred:
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Time Min.
Observations 4
All cable on exposed surface burning but no smoke on unexposed surface.
64 Penetration L smoking slightly on unexposed surface.
'l 69 Smoke or steam coming from penetrations P and C on unexposed surface.
70 Hairline cracks in FIRECODE CT Gypsum at penetrations N,O, and P on unexposed surface.
Cracks run frdm corner of tray to corner of metal retainer.
Penetration J steaming.71-104 Cable in penetration L swelling up and popping during this time period.
112 Crack in FIRECODE CT Gypsum of penetration L.
135 Slight amount of smoke or steam coming from all pene-g trations with cables.
165 Cracks in penetrations N, O, and P have increased to about 1/16 inch in width.
180 Cable covering on expo, sed surface of slab still, burning.
,j 181 Test terminated - Cable insulation on exposed surface still burning.
As soon as practical, about one-half hour, after the fire I
endurance test was terminated, the assembly was removed from the furnace and subjected to a hose stream test as shown in Fig.
6.
The 30. psi hose stream, with the nozzle 17 feet away from the center of'the assembly, was applied to the entire exposed surface for 82 seconds as prescribed in IEEE Standard 634-1978 for tests of specimens representing industr'ial and commercial applications.
All the penetrations except O withstood the force and erosion of the hose stream without passage of water to the unexposed surface,.
Pene-
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tration O failed when the hose stream passed over it the third time.
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1 shows tempeia~tures measured on opening N_.
Graph o.
Graph No. 2 shows temperatures measured on opening P.
Graph No. 3 shows temperatures measured.on opening M.
Graph No. 4 shows temperatures measured on opening O.
Graph No. 5 shows temperatures measured on openings D & I.
/
Graph No. 6 shows temperatures measured on openings G, H, J and on concrete slab.
Graph No. 7 shows temperatures measured on openings A & B.
Graph No. 8 shows temperatures measured on openings E~& F.
Graph No. 9 shows temperatures measured on openings C, L'& K.
Graph No.10 shows temperatures measured.in furnace chamber.
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. RESULTS :
C No passage of hot gases sufficient to ignite the cable or fire-stop materials or flame occurre'd during the three hours of fire exposure through the fire-stops described in this report.
None of the thermocouples on the exterior of the cable jackets at the int'er-
'f' ace of the fire-stop reached 700 F during fire exposure.
i l
All the fire-stops except opening o resisted the impact"and erosion of a 30 psi hose stream applied for 82 seconds without passage f
i of any water.
Therefore, all details except opening o qualified under Standard IEEE 634-1978 for industrial and commercial applications.
j nll fire-stop details described in this report prevented the 4
passage of flame and hot gases sufficient to ignite the cable covering 4
fof three hours of ASTM E119 time-temperature fire exposure.
Tempera-tures measured on the room side of the cable indicated that the cables in all fire-stops remained below 700 F.
Therefore, all fire-stop details qualified under the fire endurance portion of Standard IEEE 634-1978.
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The Okonite Co. 1975 09106 Cable O.D. - 0.93 in. - Area 0.68 in2 Power Cable - Ethylene-Propylene-Rubber, Chlorosulfonated Polyethylene covering Black two-ply exterior cover over 37 silver-coated conductors 0.097 in. dia.
IEEE 383 Fire Test Qualified Type II Marking on cable:
The Okonite Co. PLT #7 3CDR3 #14 AWG Okonite Okolon 600 V 1977 Cable O.D. - 0.55 in. - Area - 0.24 in2 Control Cable - Ethylene-Propylene-Rubber, Chlorosulfonated Polyethylene (Hyalon)
Black exterior cover, three black interior insulated wires marked:
1-black, 2-white and 3-red.
Each interior conductor consists of 7 strands 0.03 in.
thick silver-coated copper wire.
IEEE 383' Fire Test Qualified Type III Marking on cable:
The Okonite Co. PTL #7 09106 Reel #12 1976 - 600 V 2
Cable O.D. - 1.15 in. - Area 1.04 in Control Cable - Ethylene-Propylene-Rubber, Chlorosulfonated
' Polyethylene covering Binck exterior cover over 9 interior black insulated conductors numbered and color coded.
Each interior conductor consists of 7 strands of 0.038 in. dia.
silver-coated copper wire.
IEEE 383 Fire Test Qualified Type IV No marking on cable.
Marking on Reel:
Kerite Co.
500 MCM 1/C 600 V Power Cable Kerite insulation Cable O.D.
- 1.22 in. - Area - 1.17 in2 Black exterior two-ply cover over 37-0.115 in. dia.
silver-coated copper wire.
IEEE 383 Fire Test Qualified s
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TABLE II PENETRATION INFORMATION Cable Type Cable Cable Opening Quantity Area Opening & Area
% of Opening 2
A Type I
-5 3.4 in 6 in. Round Hole Type II -14 3.4 in 28.3 in2 2
Type III-3 3.1 in 9.9 ine 35%
2 B
Type II -42 10.1 in 6 in. Round Hole 28.3 in2-36%
C Type I
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4.5 inz D
Type III-3 3.1 in2 4 in. Rgund Hole 12.6 in 25%
E Type I
-7 4.8 in2 8 in. Round Hole 2
Type II -20 4.8 in 50.3 in2 2
Type III-4 4.2 in 13.8 inz 27%
F Type I
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2.9 in2 G
None 0
8 in. Round Hole 50.3 in2 H
None 0
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Type III-3 3.1 in2 4 in. Round Hole 12.6 in2 25%
J None 0
4 in. Pipe Sleeve 12.6 in2 K
Type I
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L TypeIV
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M Type 1
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Type II -36 8.6 in2 Rectangular Open-Type III-8 8.3 in2 ing - 144 in2 25.1 in2 17%
+
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. Cable Type Cable Cable Opening Quantity Area Opening & Area
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Type I
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Type II -42 10.1 in Rectangular Open-2 Type III-10 10.4 in ing - 4 in, by 22 in.
30.7 ind Solid Bottom Cable Tray - 88 in2 35%
O Type I
-12 8.2 in 36 in. by 8 in.
Type II -36 8.6 in Rectangula'r Open-2 Type III-S 8.3 in ing - 4 in. by 18 in.
25.1 in2 Solid Bottom Cable Tray - 72 in2 35%
2 P
Type I
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2 Type II -58 13.9 in Rectangular Open-2 Type III-14 14.6 in ing - 4 in. by 30 in.
42.1 ind by 4 in. Ladder Type Cable Tray - 120 in2 35%
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ARMAND H. GUSTAFERRO PE,SE LESLIE D. MARTIM PE SE l
THE CONSULTlNG E N G l 'N E E R S GROUP INC.
Glenview, Illinois (Chicago Suburb) 60025 312 729,-0646 1701 E.- Lake Avenue lT i,
August 13, 1979 UNITED STATES GYPSUM COMPANY 1000 East Northwest Highway Des Plaines, IL 60016 Gentlemen:
Attached is a report, " CONCRETE FLOOR FIRE STOP TEST OF IEEE 333 QUALIFIED CABLE PENETRATIONS", by D. L. Orals and P. S. Quigg. The report describes a fire test conducted at the United States Gypsum Company Research Center on April 26,1979. The assembly was tested in accordance with IEEE Standard Cable Penetration Firestop Qualification Test Procedure 634-1978.
The purpose of the test was to determine the effectiveness of the system employing THERMAFIBER and FIRECODE CT GYPSUM for " fire-stopping" cable penetrations through floors. The specimen consisted of a 6-in. solid concrete floor with several openings. Cables were placed within cable trays which penetrated through four of the openings, and groups of cables were placed through several circular openings. The spaces within the openings around the cables were firestopped by a combination of FIRECODE CT GYPSUM and THERMAFIBER.
The underside of the floor was subjected to a standard (ASTM E119) fire exposure for three hours. Temperatures of the cables on the unexposed surface were moni-tored throughout the test. None of the cables ignited beyond the unexposed sur-g' face and none of the recorded temperatures reached 700 F. After the fire test the fire-exposed surface was subjected to a 30-psi hose stream test. All but one of the firestopped assemblies withstood the hose stream test.
t It is my judgment that the report presents.the data accurately.
Respectfully submitted, IIII TJ::
i Armand H. Custaferro /
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Registered Structural Engineer No. 2917 State of Illinois y
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- UNITED STATES GYPSUM COMPANY 1000 East Northwest Highway / Des Plaines, Illinois 60016 _
RESEARCH CENTER AREA CODE 312 CYPRESS 63301 o
s i
a CONCRETE FLOOR FIRE-STOP TEST OF IEEE 383 QUALIFIED CABLE PENETRATIONS t
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+OEs aM D. L. O RALS, P.E.
P.
S. QUIGG, P.E.
RESEARCH ASSOCIATE MGR. STRUCTURAL AND FIRE TESTING l
l
INTRODUCTION:
A concrete slab containing both circular and rectangular openings
.with IEEE.383 qualified electrical power and control cable was sub-jected to fire exposure at the United States Gypsum Company's Research Center in Des Plaines, Illinois.
The purpose of this investigation was to determine the effective-ness of the system employing USG FIRECODE CT Gypsum and THERMAFIBER CT i
Felt for " fire-stopping" the area where the cables penetrate the floor.
The slab thickness was 6 inches; to simulate the behavior of thicker floors, metal sleeve retainers were placed above the openings providing a deeper fire-stop detail.
SAMPLE PREPARATION:
A floor slab, sized to fit the floor furnaca in the U.S.G.
fire test facility, was cast of lightweight concrete, 6 in. thick, containing four rectangular and twelve circular openings as shown in Fig. 1.
All the openings, except H and N, were fitted with 3 in. high, sheet metal l
collars fastened in place with 1/4 in. by 1-3/4 in. TAPCON anchors.
Opening N received a 6 in. high collar and opening H had no collar.
A 3/8 in. bead of silicone caulking was placed between the collar flange and concrete surfaces to ensure a watertight seal.
Cables, 6 ft long, extending one foot below the underside of the slab, were placed in the openings.
A description of the cables is given in TABLE I and the distribution, quantity, and area are shown in TABLE II.
Sketches showing the details of the fire-stop are shown on Figs.' 3 and 4.
THERMAFIBER CT Felt (nominal 4 pounds per cubic foot density), 4 in.
thick, was cut to the approximate shape of the opening and fitted between i
the concrete floor and cables.
Remaining voids adjacent to the cable l
l were filled with small pieces of felt to complete the seal.
In areas
=
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where the felt needed support, wire baskets formed as shown on Fig. 5 were installed.
FIRECODE CT Gypsum in 40 pound bags was mixed with 68 to 70 pounds of water in a Carrousel mixer and sprayed between'and around the cables I
in the openings to a depth of 5 inches above the felt.
The gypsum was
~
mixed with an accelerator at the nozzle during spraying to produce a set time of 10 to 15 minutes.
All the openinds were filled with FIRECODE CT Gypsum except opening I which was filled with vermiculite concrete.
The proportions of the vermiculite concrete were 15.6 pounds of port-land cement to 1 cubic foot vermiculite to 3.6 gallons water.
The fire-stops were forced-air dried for a minimum 9 days prior j
to testing.
INSTRUMENTATION:
Locations of the thermocouples on th'e sample are shown on Fig. 2.
Temperatures were recorded on the unexposed surface of the concrete floor and on the fire-stop details as well as on the jackets of the cables and on the cable trays at the interface of the unexposed face of the floor as outlined in "IEEE Standard 634-1978."
TEST PROCEDURE:
The specimen was subjected to,a. fire programmed in accordance with the ASTM E119 time-temperature curve (as required by IEEE 634-1978).
)
Furnance temperatures were monitored and controlled by five thermocouples enclosed in protection tubes distributed throughout the furnace, located 12 inches below the exposed surface of the floor (see Graph 10).
TEST RESULTS:
The fire endurance test was conducted on April 26, 1979, at the United States Gypsum Company Research Center.
Following i's a record of observed events as they occurred:
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Time Min.
Observations 4
All cable on exposed surface burning but no smoke on unexposed surface.
64 Penetration L smoking slightly on unexposed surface.
69 Smoke or steam coming from penetrations P.and C on unexposed surface.
70 Hairline cracks in FIRECODE CT_ Gypsum at penetrations N,O, and P on unexposed surface.
Cracks run from corner of tray to corner of metal retainer.
Penetration J steaming.71-104 Cable in penetration L swelling up and popping during this time period.
112 C' rack in FIRECODE CT Gypsum of penetration L.
135 Slight amount of smoke or steam coming from all pene-s trations with cables.
165 Cracks in penetrations N, O, and P have increased to about 1/16 inch in width.
180 Cable covering on exposed surface of slab still burning.
181 Test terminated - Cable insulation on exposed surface still burning.
As soon as practical, about one-half hour, after the fire endurance test was terminated, the assembly was removed from the furnace and subjected to a hose stream test as shown in Fig. 6.
The 30 psi hose stream, with the nozzle 17 feet away from the
~
center of the assembly, was applied to the entire exposed surface
'for 82 seconds as prescribed in IEEE Standard 634-1978 for tests of specimens representing industrial and commercia1' applications.
All 4
the penetrations except O withstood the force and erosion of the hose stream without passage of water to the unexposed surface.
Pene,
I D
. tration O failed when the hose stream passed over it the third time.
Graph No. 1 shows temperatures measured on opening N,.
Graph No. 2 shows temperatures fneasured on opening P,.
Graph No. 3 shows temperatures measured on opening M.
Graph No. 4 shows temperatures measured on opening O.
Graph No. 5 shows temperatures measured on openings D & I.
Graph No. 6 shows temperatures measured on openings.G, H, J and.on concrete slab.
Graph No. 7 shows temperatures measured on openings A & B'.
Graph No. 6 shows temperatures measured on openings E & F.
Graph No. 9 shows temperatures measured on openings C, L & K.
~
Graph' No.10 shows temperatures measured in furnace chamber.
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, RESULTS :
No passage of hot gases sufficient to ignite the cable or fire-stop materials or flame occurred during the three hours of fire exposure through the fire-stops described in this report.
None of the thermocouples on the exterior of the cable jackets at the inter-face of the fire-stop reached 700 F during. fire exposure.
All the fire-stops except opening O resisted the impact'and erosion of a 30 psi hose stream applied for 82 seconds without passage of any water.
Therefore, all details except opening O qualified under Standard IEEE 634-1978 for industrial and commercial applications.
All fire-stop details described in this report prevented the
~
1 passage of flame and hot gases sufficient to ignite the cable covering
)
for three hours of ASTM E119 time-temperature fire exposure.
Tempera I I
tures measured on the rcom side of the cable indicated that the cables
]
in all fire-stops remained below 700 F.
Therefore, all fire-stop details qualified under the fire endurance portion of Standard IEEE 634-1978.
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- 't TABLE I CABLE DESCRIPTION Type I Marking on cable:
The Okonite Co. 1975 09106 Cable O.D. - 0.93 in. - Area 0.68 in2 Power Cable - Ethylene-Propylene-Rubber, Chlorosulfonated Polyethylene covering Black two-ply exterior cover over 37 silver-coated conductors 0.097 in, dia.
IEEE 383 Fire Test Qualified Type II Marking on cable:
The Okonite Co. PLT #7 3CDRS #14 AWG Okonite Okolon 600 V 1977 Cable O.D. - 0.55 in. - Area - 0.24 in2 Control Cable - Ethylene-Propylene-Rubber, Chlorosulfonated i
Polyethylene (Hyalon)
Black exterior cover, three black interior insulated l
wires marked:
1-black, 2-white and 3-red.
Each interior conductor consists of 7 strands 0.03 in.
i thick silver-coated copper wire.
IEEE 383 Fire Test Qualified Type III Marking on cable:
The Okonite Co. PTL #7 09106 Reel #12 1976 - 600 V 2
Cable O.D. - 1.15 in. - Area 1.04 in Control Cable - Ethylene-Propylene-Rubber, Chlorosulfonated
' Polyethylene covering Black exterior cover over 9 interior black insulated conductors numbered and color coded.
Each interior conductor consists of 7 strands of 0.038 in. dia.
silver-coated copper wire.
IEEE 383 Fire Test Qualified Type IV No marking on cable.
Marking on Reel:
Kerite Co.
500 MCM 1/C 600 V Power Cable Kerite insulation Cable O.D.
- 1.22 in. - Area - 1.17 in2 Black exterior two-ply cover over 37-0.115 in dia.
silver-coated copper wire.
IEEE 383 Fire Test Qualified 4
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TABLE II PENETRATION INFORMATION Cable Type Cable Cable Opening Quantity Area Opening & Area
% of Opening A
Type I
-5 3.4 in 6 in. Round Hole 2
Type II -14 3.4 in 28.3 in2 2
Type III-3 3.1 in 9.9 ine 35%
2 B
Type II -42 10.1 in 6 in. Round Hole 28.3 in2 36%
C Type I
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Type II - 4 1.0 in2 12.6 in2 l
Type III-2 2.1 in2 35%
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Type II -20 4.8 in 50.3 in2 2
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2.9 in2 G
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4 in. Pipe Sleeve 12.6 in2 K
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12.6 in 28%
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Type II -36 8.6 in2 Rectangular Open i
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% of Opening 2
N Type I
-15 10.2 in 24 in, by 6 in.
Type II -42 10.1 in Rectangular Open-2 Type III-10 10.4 in ing - 4 in, by 22 in.
30.7 inz Solid Bottom Cable Tray - 88 in2 35%
2 O
Type I
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Type II -36 8.6 in Rectangular Open-2 Type III-8 8.3 in ing - 4 in, by 18 in.
25.1 inz solid Bottom Cable 2
35%
Tray - 72 in 2
P Type I
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Type II -58 13.9 in Rectangular Open-2 Type III-14 14.6 in ing - 4 in. by 30_in.
42.1 in4 by 4 in. Ladder Type Cable Tray - 120 in2 35%
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Photograph #1 Unexposed Surface at Start of Fire Test "g..
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Photograph #2 Unexposed Surface 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />
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D NORMAN L. SCOTT PE.SE ARMAND H. Gust AFERRo PE.SE o-LEsuE D. MARTIN PE SE GERALD E. GoETTSCHE PE,SE THE CONSULTING ENGINEERS GROUP lNC.
312 729-0646 Glenview, Illinois (Chicago Suburb) 60025 1701 E. Lake Avenue a
May 21, 1979 UNITED STATES GYPSUM COMPANY 1000 East Northwest Highway Des Plaines, IL 60016 Gentlemen:
Attached is a report, " POKE-THRU WALL FIRE TEST," by D. L. Orals and P. S. Quigg. The report describes a fire test conducted at the United States Gypsum Compar.y Research Center on March 6,1979. The assembly was tested in accordance with IEEE Standard Cable Penetration Firestop Qualification Test Procedure 634-1978.
The purpose of the test was to determine the ef fectiveness of combinations of THERMAFIBER and FIRECODE CT GYPSUM used as firestops for cable penetrations through walls. The specimen consisted of an 8-in, solid concrete block wall with,sev,eral openings. Cables were placed within two cable trays which penetrated through one opening, and groups of cables were placed through three circular openings. The spaces within the openings around the cables were firestopped by a combination of FIREOODE CT GYPSUM and THERMAFIBER.
~
One side of the wall was subjected to a standard ( ASTM,E119) fire exposure for three hours. Temperatures of thu cables on the unexposed surface were monitored throughout the test.
Noneofthecablesignitegbeyondtheunexposed
~
surface and none of the recorded temperatures reached 700 F.
After the fire test the fire-exposed surf ace was subjected to a 30-psi hose stream test.
The assembl'y withstood the hose stream test.
It is my judgment that the report presents the data accurately.
Respectfully submitted,
,W Armand H. Gustaferro Registered Structural Engineer No. 2917 State of Illinois iSEEE: -
AHG:CJ Y
Enc.
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i
l UNITED STATES GYPSUM COMPANY f RE 1000 East Northwest }ilghway/ Des Plaines,litinois 60016
- A?N c
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POKE-THRU WALL FIRE TEST l
pain
,o D. L. ORALS, PE May 10, 1979 P. S. QUIGG, PE l
RESEARCH ASSOCIATE MANAGER, STRUCTURAL &
FIRE TEST
~
INTRODUCTION:
This report covers a 3-hour fire test of a concrete masonry wall with a large firestopped opening penetrated by two cable trays con-The test sample also contained taining power and control cables.
three circular firestopped openings with power and control cable.
The assembly was tested in accordance with IEEE Standard Cable 634-1978 and wit-Penetration Firestop Qualification' Test Procedure A. H. Gustaferro of the Consulting Engineers Group Inc.,
nessed by Glenview, Illinois.
. CONSTRUCTION:
An 8-inch thick, solid concrete block wall was constructed with a 48-inch by 24-inch rectangular' opening, two 6-inch diameter circular openings, and one 10-inch diameter circular opening, Two, 16-gauge, cable trays, manufactured by the Globe Product Company, 56 inches wide by 4 inches,high by 5 feet long, were placed in the rectangular opening.
The top tray was a ladder design and the lower tray was a solid bottom design.
The trays, placed one above the other,'were secured to a suspended trapeze from 1/2-inch diameter rods attache.d to Globe channels (see Fig. 1).
The trays extended 1 foot bayond the exposed face, leaving 3 feet 4 inches of projection beyond the wall face on the unexposed side.
Each tray was filled with thirty-six pieces of Anaconda power cable, one hundred pieces of REX Brand control cable., and thirty-three pieces of Collyer control cable (see Tables I and II).
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One of the two 6-inch diameter circular openings contained five l
Okonite control cables and five Okonite power cables, and the other contained four Anaconda power cables and-twelve REX Brand.and three Okonite control cables.
The 10-inch diameter circular opening was 4
.--,-,~-.--...---,,----e r
1 i i CONSTRUCTION (cont'd.)
fitted, with 6-inch diameter pipe sleeve that contained five Anaconda power cables, fifteen REX Brand control cables and four Collyer con-trol cables (see Tables,I and II).
l Twenty-six pounds of FIRECODE CT Gypsum was mixed with 36.1 pounds of water and placed in each tray over the cables in the area where the Tapping the tray with a robber mallet and tray passed thru the wall.
l nt assured that the gypsum
,apreading cable as necessary during p aceme The fl' owed around the cables in the tray to fill al'1 interstices.
" firebreak" was full width of the cable tray, at a height equal to the approxima_tely 16 inches long at the bottom and 12 tray rail height, A temporary form, 16 inches long, centered in inches long at the top.
the wall, was fitted to the bottom of ladder tray to contain the CT Gypsum.
The rectangular opening was closed using 4-inch thick THERMAFIBER CT Felt (4 pcf nominal density) compressed slightly, in the wall and The circular fitted in the opening between and around the trays.
openings were also fitted with 4-inch thick THERMAFIBER CT Felt cen-The rectangular opening was finished off with tered.in the opening.
2' inches of FIRECODE CT Gypsum machine applied to the THERMAFIBER on cach face,,in two coats. The mix proportions were 56 pounds of water per 50. pounds of FIRECODE CT Gypsum.
The circular openings were sealed by pouring a mixture of the FIRECODE CT Gypsum (50 pounds of FIRECODE CT Gypsum to 69.4 pounds of
'The forms were water). contained within forms fitted around the cable.
i removed when the FIRECODE CT Gypsum had hardened.
The assembly was force air dried for 13 days, assuring a dry speci-men', prior to testing.
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S.
., INSTRUMENTATION :
Locations of the thermocouples on the test sample are shown on Fig. 2.
Temperatures were recorded on the unexposed surface of the c:ncrete block wall and FIRECODE CT Gypsum and on the jacket of the cmble and cable tray at the interface of the unexposed face of the wall as outlined in "IEEE Standard. 634-1978".
I TEST PROCEDURE:
The specimen was subjected to a fire programmed in accordance with the ASTM E119 time-temperature curve (as required by IEEE 634-1978).
Furnace temperatures were monitored and controlled by eignt thermo-couples enclosed in protection tubes distributed throughout the furnace, located 6 inches from the wall (see Graph 7).
TEST RESULTS :
The fire endurance test was conducted on March 6, 1979, at the United States Gypsum Company Research Center.
Following is a record of observed events as they occurred:
Time Min.
Observations 2
Cable insulation on exposed side in three circular open-ings burning profusely.
4 Cable insulation in trays on exposed side burning.
8 Large quantity of dense, black smoke in furnace from burning cable insulation.
33 Small quantity of smoke on unexposed surface from center circular opening.
38 Small amount of smoke noted on unexposed surface near right circular opening.
50 Liquid dripping from ends of cables in left and right circular openings.
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~ ' TEST RESULTS (cont'd.)
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Time Min.
Observations Small amount of smoke noted on unexposed surface by 110 upper cable tray.
155 Liquid dripping from cables in upper tray on unexposed surface.
180 Test terminated.
s Immediately after the fire endurance test, the assembly was re-moved f' rom the furnace and subjected to a 30-psi hose stream test for 71 seconds as prescribed by IEEE Procedure 634-1978 for tests of speci-msns representing industrial and commercial applications.
(See Appendix A)., All the penetration withstood the force and erosion of the hose stream with no water passing to the unexposed surface.
Graph 1 shows the temperatures measured on the top cable tray.
Graph,2 shows the temperatures measur'ed on the bottom cable tray.
Graph 3 shows the temperatures recorded on circular opening A.
Graph 4 shows the temperatures recorded on circular opening C..
Graph 5 shows the temperatures recorded on circular opening B.
Graph 6 shows the unexposed surface temperatures of the FIRE-CODE CT Gypsum and concrete block.
Graph 7 shows the temperatures developed in the furnace during taat.
RESULTS AND CONCLUSIONS:
The unexposed surface temperatures on the wall and firestops were wall below the temperature rise limit of 250 F above ambieht specified by ASTM E119 for a 3-hour rating.
The concrete block wall developed a 174 F rise and the rectangular firestop developed a 104 F rise, as s
mehsured under asbestos pads, at three hours.
The thermocoupleston the e
9
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RESULTS AND CONCLUSIONS (cont'd.)
firestop not covered by a pad exhibited a maximum rise of only 69 F.
None of the thermocouples on the exterior of' cable jackets at the interface of the firestop reached 700 F during the three hours of ex-The power cable reached a maximum recorded temperature of posure.
522 F and the control cable reached 350 F at three hours.,The larger conductor power cables transferred more heat to the unexposed surface than the control cable as shown on all the graphs.
The solid bottom cable tray was 144 F hotter than the ladder The cable tray at the interface of the firestop at three hours.
additional area supplied by the continuous lower surface presumably caused the rise in siderail temperature.
No passage of hot gases or flame occurred during the three hours The of fire exposure through the firestop described in this report.
firestops also resisted'the impact and erosion of the 30-psi hose stream test for 71 seconds without passage of any water as prescribed by ASTM E119 and by IEEE 634-1978 for industrial and commercial appli-cations.
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TABLE I CABLE DESCRIPTION Type I Marking on cable:
Anaconda S Durasheath XLP Power Cable Type Use or RHH or RHW 250 MCM 600 Volts (UL)
Power Cable - Cross-linked Polyethylene covering Cable O.D. - 0.77 in. - Area - 0.46 in2 Black exterior cover with transparent inner jacket around 37,0.081 dia. copper conductors.
IEEE 383 Fire Test Nonqualified Type II No marking on cable.
Marking on reel:2 REX BRAND Cable O.D. - 0.40 in. - Area - 0.12 in Control Cable - 600 Volt - Polyethylene, Polyvinyl Chloride covering Black exterior cover, colored black, red and white; interior covers over clear cover on each of three wires. 'Each wire contains 7 strands of 0.022 in. dia.
copper wire.
IEEE 383 Fire Test Nonqualified Type III Marking on cable:
Collyer fl0 2
Cable O.D. - 1.06 in. - Area - 0.88 in Control Cable - 600 Volt - Butyl Rubber, Polyvinyl Chloride covering Black exterior cover, over clear wrapping and 9 interior black insulated conductors numbered and color coded.
Fibrous string intermingled with interior conductors.
Each interior conductor consists of 7 strands of 0.039 in, dia. silver-coated copper wire.
IEEE 383 Fire Test Nonqualified Type IV
-Marking on cable:
The Okonite Co. PTL No. 7 09106 Reel #12 1976 - 600 Volt 2
Cable O.D. - 1.15 in. - Area - 1.04 in Control Cable - Ethylene - Propylene - Rubber, l
i Chlorosulfonated Polyethylene covering Black exterior cover over 9 interior black insu-lated conductors numbered and color coded.
Each interior conductor consists of 7 strands of 0.038 in.
dia, silver-coated copper wire.
IEEE 383 Fire Test Qualified i
Type V Marking on cable:
The Okonite Co. 1975 09106 350 MCM - 600 Volt 2
Cable O.D, - 0.93 in. - Area - 0.68 in l
J Power Cable - Ethylene - Propylene - Rubber, Chlorosulfonated Polyethylene covering i
B]ack two-ply exterior cover over 37 silver-coated conductors 0.097 in dia.
IEEE 383 Fire Test Qualified m.~.. _..m.
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TABLE II PENETRATION INFORMATION Cable Cable Type Cable Raceway or
% of Raceway Location and Quantity Area Opening & Area or Opening 36 16.6 in ladder type Tap Tray Type I 2
tottom Tray Type II
- 100 12.0 in 36 in, wide by 40 Type III -
33 29.0 in 4 in.* deep 57.6 in 144 in I
2 5
5.2 in 6 in. dia.
Right Type IV Circular 2
2 5
3.4 in 28.3 in 30 Opsning Type V 8.6 in 5
2.3 in 6 in dia.
Cdntor Type I Circular 15 1.8 in 28.3 in 27 Opening Type II Type III -
4 3.5 in 7.6 in 4
1.8 in 6 in. dia.
L2ft Type I Circular 2
2 12 1.4 in 28.3 in 22 Opening Type II 2
3 3.1 in Type IV 6.3 in O
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APPENDIX A Hose Stream Calculations per ASTM E119 and IEEE Standard 634-1978.
2-1/2 min. (150 sec.) per 100 ft of test slab.
2-1/2 in. National standard glaypipe equipped with 1-1/8 in.
tip, nozzle pressure 30 p/in 20 ft from exposed face.
2 5
2 47.25 ft Wall area 84 in. x 81 in. = 6804 in
=
0.4725 x 150 =.71 sec.
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> UNITED STATES GYPSUWi COliPANY f 1000 East Northwest Highway / Des Plcinos,1;linois 60016,
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FIRESTOP SYSTEMS FOR ELECTRIC CABLE PENETRATIONS THRU 3-HR FIRE-RATED WALL i
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ORALS, PE MARCH 20, 1979 P.
S. QUIGG, PE RESEARCH ASSOCIATE MANAGER, STRUCTURAL &
FIRE TEST
INTRODUCTION:
Electrical power generating stations are fitted with appropriate fire barriers to provide containment.
However, it is often necessary to penetrate these barriers in order for the plants to perform their function.
For example, electric control and power transmission cables extend throughout the plant, passing through fire-rated walls and floors.
If these points of penetration are not properly treated, the fire barriers may be seriously compromised.
This report covers a means whereby a fire-rated wall breached 1
with openings to permit the passage of cables can be fitted to ful-fill its function as a fire barrier.
Specifically, this report covers a 3-hour fire test of a concrete masonry wall with a large firestopped opening passing power transmission cables contained within two cable trays, and three circular firestopped openings without cable.
CONSTRUCTION AND MATERI ALS :
A wall of 8-inch thick, solid concrete block was constructed as shown in Fig. 1.
A rectangular opening, 48 inches wide by 24 inches high, was provided near the top of the wall which was fitted with two cable trays containing cable passing through the wall.
- Two, 6-inch and one 10-inch diameter openings were located near the bottom of the wall and were not fitted with cables.
Two, 16-gauge, solid bottom cable trays, manufactured by the Globe Product Company, 18 inches wide by 4 inches high by S feet long, were placed in the rectangular opening.
The trays placed one above the other were secured to a trapeze on 1/4-inch diameter rods attached to a concrete beam at the top of the wall.
See Fig.
2.
The trays ex-tended 1 foot beyond the exposed face, leaving 3 feet 4 inches of projection beyond the unexposed face.
Thirty sections of KERITE power i
.s ^
cable (IEEE 383 fire test qualified), 5 feet long by 1-1/4 inches in diameter, with 37 No. 12 gauge copper conductors, were placed in the lower cable tray.
Thirty-eight sections of COLLYER control cable (IEEE 383 fire test nonqualified), 5 feet long by 1 inch in diameter, with nine conductors, butyl rubber insulation and a PVC jacket, were placed in the upper cable tray.
Fifteen pounds of FIRECODE CT Gypsum was mixed with 21 pounds of water and placed in each tray over the cables.
Tapping the tray with a rubber mallet and spreading cable as necessary during placement assured that the gypsum would flow around the cables in the tray and fill all interstices.
The firestop was full width of the cable tray, 4
approximately 16 inches long at the bottom and 12 inches long at the top.
The rectangular opening was closed using 4-inch thick THERMAFIBER CT Felt (4 pcf density) compressed slightly and centered in the opening and placed between the trays and the opening perimeter.
The circular openings were also fitted with 4-inch thick THERMAFIBER CT Felt centered in the opening.
All the openings were then finished off with 2 inches of FIRECODE CT Gypsum on each f ace, trowel applied in two coats of about 1-inch thick each.
The mix proportions for the troweling appli-cation were 57.5 lb of water per 50 lb of FIRECODE CT Gypsum.
INSTRUMENTATION:
Locations of the thermocouples on the test sample are shown on Sketch 1.
Temperatures were recorded on the unexposed surface of the concrete block wall and FIRECODE CT Gypsum with and without asbestos I
pads and on the jacket of the cable and cable tray at the interface of the unexposed face of the wall.
s
--,,.~
. P TEST PROCEDURE:
The specimen was subjected to a fire programmed in accordance with the ASTM E119 time-temperature curve.
Furnace temperatures were moni-tored by eight thermocouples enclosed in protection tubes distributed throughout the furnace, located 6 inches from the wall.
TEST RESULTS:
The fire endurance test was conducted on January 30, 1979, at the United States Gypsum Company Research Center.
Following is a record of observed events as they occurred:
Time Min.
Observations 1
Cable started to burn on exposed face.
6 Cable burning vigorously.
11 Small amount of snoke coming from cable in top tray on unexposed side.
15 Smoking on unexposed side stopped.
30 Small amount of smoke coming from cable in top tray on unexposed side.
37 Smoking on unexposed side stopped.
Two hairline cracks about 6 inches long appeared 40 on unexposed surface of FIRECODE CT Gypsum running from top corner of bottom tray up toward left l
corner of opening.
50 Hairline cracks appeared on unexposed surface running from corners of top tray toward corners of opening.
i
Observations Time Min..
79 Ste.- coming out of hairline crack on unexposed surface.
100 KERITE cables in lower tray forming blisters in out jacket.
Blister popping and dislodging FIRE-CODE CT Gypsum in that area.
This condition con-tinued on for 15 minutes.
180 Test terminated - cable in trays still burning inside furnace.
Immediately after the fire endurance test, the assembly was removed from the furnace and subjected to a 30 psi hose stream test for 71 seconds.
All the penetration withstood the hose stream and no passage of water was recorded en the unexposed surface.
Graph 1 shows temperatures recorded on the unexposed surface over the FIRECODE CT Gypsum and concrete block.
Graph 2 illustrated the temperatures recorded on the power cable jacket in the top and bottom trays.
Graph 3 illustrates the temperatures recorded at the interface of the cable tray and firestop.
Graph 4 illustrates the temperatures developed during test on the unexposed surface of the FIRECODE CT Gypsum over the three circular openings.
RESULTS AND CONCLUSIONS:
The exposed surface temperatures on the wall and on the firestops shown on Graph 1 are all well below the 250 F above ambient limit speci-fled by ASTM E119 for a 3-hour rating.
The concrete block wall developed a 142 F rise and the rectangular firebreak developed a 77 F rise, as j
measured under asbestos pads, at three hours.
The thermocouples on the m
em m mow m seem
rectangular firestop not covered by a pad exhibited a maximum rise of only 53 F.
None of the thermocouples on the exterior of cable jackets at the interface of the firestop reached 700 F during the three hours of exposure.
The power cable reached 377 F and the control cable reached 236 F at three hours.
The larger conductor power cables transferred more heat to the unexposed surface than the control cable as shown on j
i Graph 2.
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The upper cable tray was 186 F hotter at the interface of the fire-stop at three hours (Graph 3) probably because of the additional fuel supplied by cable insulation in the lower tray.
Graph 4 indicates that the temperature transmitted through a 6-inch diameter hole protected with FIRECODE CT Gypsum on both faces and THEM1AFIBER CT Felt in the center is essentially the same as that transmitted through a 10-inch diameter hole protected in the same man-ner without cables.
See Graph 4.
No passage of hot gases or flame occurred during the three hours of fire exposure through the firestop described in this report.
The firestops also resisted the 30 psi hose stream test for 71 seconds without passage of any water.
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NORMAN L. SCOTT PE. SE ARMAND H.GUSTAFERRO PE.SE LESLIE D. MARTIN PE,SE GERALD E. GOETTSCHE PE,SE THE CONSULTING ENGINEERS GROUP INC. ) Glenview, Illinois (Chicago Suburb) 60025 312 729-0646 1701 E. Lake Avenus = December 7,1978 UNITED STATES GYPSUM COMPANY 1000 East Northwest Highway Des Plaines, IL 60016 Gentlemen: Attached is a report, " FIRE TEST OF CONCRETE FLOOR SLAB WITH ELECTRICAL CABLE PENETRATION FIRESTOPS", by D. L. Orals and P. S. Quigg. The report describes a fire test of a simulated fIoor assembly which incorporated several cable penetrations. Firestopping at the floor level around the cables was effected by various details using USG THERMAFIBER and FIRECODE CT Gypsum. The test was conducted at the United States Gypsum Company Research Center on June 19, 1978. The underside of the floor assembly was subjected to the standard fire ex-posure prescribed by ASTM E119 for more than three hours. All of the fire-stopping details were successful in preventing the cables above the slab from igniting. The report gives data on the temperatures recorded on each of the details throughout the test. I witnessed the test and I was present when the specimen was disassembled. It is my opinion that the report presents the data accurately and the conclu-sions are justified. Respectfully submitted, um Armand H. Gustaferro S. M /g Registered Structural Engineer No. 2917 State of Illinois 27 Y AHG:NS NW 4 nia[ Attach. /
UNITED STATES GYPSUM COMPANYI. 1000 East Northwest Highway / Des Plaines, Illino!s 60016 RESEARCH CENTER creness saw ( l i FIRE TEST OF CONCRETE FLOOR SLAB WITH ELECTRIC CABLE PENETRATION FIRESTOPS l 9 Mb o-X A D. L. Orals, PE P. S. Quigg, PE Research Associate Mgr. Structural & Fire Test =
4 INTRODUCTION: A concrete slab fire test specimen containing both rectangular and circular openings to accommodate electric power cable was subjected to fire exposure following ASTM E-119 time / temperature curve. The test was conducted on June 19, 1978 at the United States Gypsum Company Research Center in Des Plaines, Illinois. The purpose of the test was to determine the effectiveness of various materials and combinations of materials for "firestopping" the void area between the cable and the opening perimeter. The specimen slab thickness was only four and six inches. To simulate the behavior of "firestop" materials in thicker floors, metal sleeve extenders were placed above some of the openings to achieve a greater depth. Approximately half of the openings through the concrete floor were firestopped with USG THERMAFIBER and FIRECODE CT Gypsum. The data from tests on these installations are contained in this report. The other openings were firestopped with materials supplied and installed by Commonwealth Edison Company. The performance of the CE firestops is covered in a report dated July 27, 1978, by A. H. Gustaferro en-titled " Fire Test.of Cable Penetrations Utilizing Commonwealth Edison Company's Firestopping Details." SPECIMEN: A floor slab, sized to fit on the U.S.G. pilot fire test furnace, was cast of lightweight concrete. The slab was cast so that two thick-nesses of floors could be examined. One-half of the slab, 7 ft 1 in. (2.16 m) by 4 ft 4 in. (1.42 m), was 4 inches (101.6 mm) thick; the other half 6 inches (152.4 mm) thick. Each half contained two rec-tangular openings and six circular openings as shown in Figure 1..
SPECIMEN (cont'd.) The U.S.G. details were incorporated into three circular openings, and F in the 6 in. (152.4 mm) slab, three circular openings, A2, B2 in the 4 in. (101.6 mm) slab, and two rectangular F2, G2, and H2 openings, C and D in the 6 in. (152.4 mm) slab. 1 y The number and type of cables in each penetration are shown in Fig. 2. Cables in Details B and G were 9 ft (2743 mm) long; all other cables were 5 ft (1524 mm) long. All cables extended approximately 1 ft (305 mm) below the underside of the floor slab. Where conduits p,ro-jected below the floor slab, the cables extended approximately 1 ft (305 mm) below the conduit. MATERIALS : 1. Cable - Control cables were either 3/C #14 made by Anaconda with PE/PVC insulation and jackets, or 9C #10 made by Collyer with BR/PVC insulation and jackets. Power cables consisted of 3/C, 1/0 and 1/C #500MCM made by the Kerite Company. The insulation is similar mechanically to ethy-
- s lene propylene but is sulfur cured rather than peroxide cured.
The cable jackets are made with a thermo-setting compound. They are formulated to have mechanical and weathering properties more closely related to neoprene or hypalon than to materials i such as polyethylene and polyvinyl chloride. 2. Cable Tray - GLOBE Metal Products Division, U. S. Gypsum Company CABLE-STRUT Solid Bottom Cable Tray, 16 gage (1.6 mm) galva-nized steel, 5 ft (1524 mm) long, 18 in. (457 mm) wide, 4 in. (102 mm) deep. +
. I MATERIALS (cont'd.) 3. Cable Tray Cove.r - fabricated from 16 gage (1.6 mm) galvanized steel, 23 in. (584 mm) long, 18 in. (457 mm) wide, 4 in. (102 mm) deep. 4. THERMAFIBER Industrial Felt (4 pounds per cubic foot (64 kg/m ) e mineral fiber insulation) for sealing bottom of metal pouring form and covered cable tray form. 5. FIRECODE CT Gypsum manufactured by U. S. Gypsum Company, light l weight, frangible, limited bond strength, expands upon setting. Rheological characteristics have been designed to provide com-plete filling of voids between cables without excessive lateral flow. Ratio of water to dry materials was 1.4:1. 6. VIMASCO Cable Coating No. lA, manufactured by Vimasco Corporation. 7. FLAMEMASTIC 71A, made by 'the Flamemaster Corporation. 8. The EBONY BOARD used in this test is manufactured by Johns-Manville, Denver, Colorado, and Nicolet Industries, Ambler, Pennsylvania. 9. FIBERGLAS Thermal Insulating Wool (TIW), manuf actured by Owens-Corning Fiberglas. ASSEMBLY DETAILS: Sketches showing the components of the various details are included with the data for the individual details in Figs. 3 through 11. INSTRUMENTATION: Locations of thermocouples on the unexposed surfaces of the specimen and various details are shown in Figs. 3 through 11. Thermocouples on the top surface of the concrete slab were placed beneath standard (ASTM E-119) felted asbestos pads. Thermocouples on cables and on the
_ _ _ _ _ INSTRUMENTATION (cont' d. ) l l sheet metal sleeves or collars, were held in place with screws or wire ties. Thermocouples on rigid conduit were positioned by placing the leads into adjacent drilled-in holes and then peening the steel around them to ensure contact. Except as noted, thermocouples on conduits and sleeves were located 1 inch (25.4 mm) above the top surface of the slab. Thermocouples placed on the surfaces of protective materials were covered with 2 x 2 x 5/32 in. (51 x 51 x 4 mm) felted asbestos pads. FIRE TEST: The fire test was conducted on June 19, 1978 at the U.S.G. Research Center in Des Plaines, Illinois. The temperatures in the furnace were monitored by five thermocouples located 12 inches (305 mm) below the exposed surface of the slab. The fire in the furnace was program-med to reproduce the time / temperature relationship prescribed by ASTM E-119. The temperatures developed in the furnace chamber during the test are shown in Fig. 12. Time-Minutes Observations 0-1/2 Cable insulation on exposed surface burning, furnace full of smoke. 3 Smoke coming through firestops but it is impossible to tell which ones. 4 Dense smoke in furnace chamber. 6 Smoke coming through Details Cy, Dy, Fy. l l 7-3/4 Cables in furnace burning and producing heavy smoke within the furnace.
FIRE TEST (cont ' d. ) Time-Minutes Observations 11 Smoke through some firestops continues. 13 Smoke beginning to subside but visible through some firestops. 22 White substance forming on cables in furnace. 30 Opening observed behind Detail D between cable y tray and slab. 50 FIRECODE CT Gypsum in Detail F begins to crack. 2 98 Substance boiling out from under sleeve in Details F and F y 2' 140 Crystals forming on top of THERMAFIBER in Detail D. y 185 Test terminated. RESULTS: Fig. 3 illustrates the temperatures developed on the unexposed surface during the fire test. The 4 in. (101.6 mm) slab reached average tem-perature failure at 2 hr 2 min but the 6 in. (152.4 mm) slab did not i fail on temperature transmission during the 3 hr 5 min of exposure. Following is an analysis of each of the firestop details: Detail A j 2 Fig. 4 shows the thermocouple locations, firestop construction, cable information, and a graph of temperatures recorded during test. The cable temperature above the sleeve reached 197 F (91.7 C) at 3 hours. The sleeve 1 inch (25.4 mm) above the slab reached 387 F (197 C) at 3 hours. No passage of flame
n RESULTS (cont'd.) f or smoke was -observed passing through the firestop during the i 3 hours of exposure. Detail B 2 Fig. 5 shows the thermocouple locations, firestop construction, 4 l cable information, and a graph of the temperatures recorded during test. The cable temperature above the sleeve at 3 hours was only 11 F (6.9 C) higher than the ambient temperature at the start of the test. The temperature on the pipe sleeve rose to 0 375 F (191 C) 1 inch (25.4 mm) above the floor, at 3 hours but the temperature on pipe 42.5" (1080 mm) higher was only 88 F i (31 C) at the same time. No passage of flame or smoke was noted through this firestop during the 3 hours of exposure. Detail C y Fig. 6 shows the thermocouple locations, firestop construction, cable information, and gr_aph of the temperatures recorded j during test. The 2 inches (50.8 mm) of FIRECODE CT Gypsum over the Commonwealth Edison firestop kept the surface tempera-tures below 200 F ( 94 C ) for 3 hours except for the location 1 inch (25.4 mm) away from the cable. At that point, the sur-face temperature reached 347 F (175 C) at 3 hours. Thermocouple 6B at the junction of the concrete slab and FIRECODE CT Gypsum l firestop reached only 170 F (77 C) at 3 hours, indicating that the firestop did not shrink during exposure. Temperatures on the stripped wire, 12 inches (305 mm) above the slab were lower than those on the unstripped cable 1 inch (25.4 mm) above the firestop. Observations after test revealed that EBONY BOARD
I RESOLTS (cont ' d. ) had shrunk and FIBERGLAS insulation had melted but the FIRECODE CT Gypsum appeared unaffected. No passage of flame was noted through this firestop during the 3 hours of exposure. Detail Dy Fig. 7 shows the thermocouple locations, firestop construction, cable information, and graph of the temperatures recorded during test. During the test an opening developed between the back of the cable tray and slab because the cable tray distorted. In future tests or actual installation, a section of THERMAFIBER mineral wool should be placed between the tray and slab to pre-vent this opening from developing. The highest temperature recorded on this detail was 442 F (228 C) at 3 hours 1 inch (25.4 mm) away from the cable on surface of the THERMAFIBER firestop. Detail F y Fig. 8 shows the thermocouple locations, firestop construction, cable information, and graph of temperatures recorded during test. The maximum temperature recorded on this detail was 395 F (202 C) on,the cable above the firestop. Some smoke was noted coming from this firestop during the test, but no flames passed through during the 3 hours of exposure. Detail F2 Fig. 9 shows the thermocouple locations, firestop construction, cable information, and graph of the temperatures recorded during test. The temperature on the cable 1 inch (25.4 mm) was recorded and the fire reached 444 F (229 C) at 3 hours. The temperature
. RESULTS ( con t ' d. ) on the top surface of the FIRECODE CT Gypsum only reached 258 F (126 C) at 3 hours. No passage of flame, hot gases or smoke was observed through this firestop during the 3 hours of exposure. Detail G2 Fig. 10 shows the thermocouple locations, firestop construction, cable information, and graph of the temperatures during test. The 5 in. (127 mm) diameter sleeve reached 506 F (263 C) 1 inch (25.4 mm) above the deck at 3 hours, but at the same time the cables and top of the sleeve were only 85 F (29 C) and 87 F (31 C) respectively. No passage of flame, hot gases or smoke was observed through this firestop during the 3 hours of fire exposure. Detail H 2 Fig. 11 shows the thermocouple locations, firestop construction, cable information, and graph of the temperatures reccrded during test. The cable 1 inch (25.4 mm) above the sleeve reached 207 F (97 C) at 3 hours, but the sleeve 1 inch (25.4 mm) above the slab 4 reached 495 F (257 C) at 3 hours. No passage of flame, hot gases or smoke was observed through this firestop during the 3 hours of exposure. CONCLUSIONS : Only one Detail (D ) developed a through opening during the 3 hours y of fire exposure. The opening was caused by bowing of the flat bot-tom cable away from the slab. A remedy for this problem would be placing a 1 inch (25.4 mm) thick batt of THERMAFIBER between the tray and slab to form a barrier that can accommodate the movement. Details l
CONCLUSIONS (cont'd.) and F emitted smoke, in minor amounts, during the fire test. C1, Dy y It could not be determined, however, if the smoke was coming from the firestop or cable insulation. F and H during the 3 No smoke was emitted by Details A2, B2, 2, G2 2 hours of testing. No passage of flames or hot gases was observed through Details A, B 2 2' and H during the 3 hours of testing. Cy, Fy, F2' 2 2 The maximum temperature at 3 hours recorded on any of the cables was 569 F (298 C) on Detail C. No cable flaming on the unexposed surface y was observed during the test. 8
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800 g (426.7 *C) 'e tdu 600 h (3I5.5 *C.) 1_ o 0 x/c n c b ( O o b / o_O y
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6 (42G C) C' b u o O O -'o [1[ o_O O _o E soo f(315.5*c) e a 46 i L i. in l 5 soo I p(eo4A*c) o til 4 A. 4-2 i @(93.yc>\\ 200
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} s wN' f.i'.*.'[.kj (152A mm) f' h ^,' [- ',,'l* h f PORTLAUD CEMEMT MORTAR BETwEt LEEVE THERMCCOLJPLE LOCATIOMS S*E ClOU "A -4 A s 2 OM DETAIL A2 DETAILS ALLO RECORDED TEMPERATURES FOR DETAIL-A. Z FIG. 4
~ 800 (42( 7'C) o o h oO O _. o o e m 'O y(315.5 *C) O _o e,co 3 e o l (Y hl I a 7 400 w (204A'c) ,g C W Ba 4-- O d(93.3*C) lo 3/c A* l4 200 (CONTROL CABLE) til g( 4 O/c. # lo (-18*C) O (CONTROL Cat-. ~# O I 2
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CF GYPSUM FROM TOP)(ll55.7mm)d5h' p(I2.7mm) E$_[@sI { 's'.U[. ' (( ~ (OU PIPE)(isa.< rnm)[f l 1,. !,,'... *; j >*- I l - Eib ]. ~ l b (I o f.G m m) i* s __ m..u.o oy THERWFibER THERMOCOUPLE, LOCATIOUC. se cTim " s,- s2a CU DETAIL. Eg PORTLAUD CEMEUT MORTAR BETWEEkl SLEEVE AUD.El.AE DE TAILS A,WD RECORDIE.D TEMPERATURES FOR DETAIL--Eb2 FIG. 5
I C1 Boo (426,7 C) i a o O g O o e o O O o til 600 d(315.5t l l / o o 71 1 ( I t. n J id a Aoo ) ](MA*C 8 /,, I. F so-s -# ! ' k s_m;ou __-i g '~~/ o /. [/,7 '___ 70 (ou CAe>LE) W , q cAgLE) Q h(200) / - l... m..- - _W ---l '#6, lR~ ~ s. :..c 93.3*C 4 - y/#_-o d .e.. A f' SECTtou V!Ev/ 1 ISC H d I' @d Ol 2 (-is c.)o o i 2. s .q FIRE TEST TIME HOUR-3 g SHEE.T METAL DE! UOTI z-eEcTious 2w a E G ~ ~ - ~ [0 B OLJ FIRECODE 4 x 3 (,. N [f FIRESTOP ] L, / W'<"" Cg & SE T l O L.!" E ~.E " m b G-B CU M.G.E -\\ { f THEr<MOCOUPLE L O C N i'l O!J.- (.50.8 m m) 2" Fh c. y'"(25Amm) C M-3 k ATTTU EtEEDIric." .s (152A mm)f._. .i *) .,( [-lf \\ [3 ~3/c # 10 g F) Q~* % H I4 V' M ^ 5C O CC ^ 7 N #' 3 "g cas.A mm) gd,, M# " /39/c g g y,g g ge ; g. couract.
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,1-B" 1. MOTES y-(304.S mm) 4- (203.2mm) T/C.-I4 C OLI STRIPPE.D WIRE.12." A50NE -* AF C cy ye, a 14 aBLE u w a (p,g mm) g PLAM VIEW T/C-ISC OkJ STRIPPED WIRE.12. ABO'/F C '- A9 OL1 9/c, As6 iO CA6LE " Y" DETAILS ALJD RECORDED TE.MPERATURES FOR DETAIL.-C1 FIG. 6
800 1(426.7'C)7 0 O o O o O o t d o O E O o soo 6 f(315.5"C.) l e o 4 i LL J 2 goo f(204A'C) ,/, 4 sJ K PA" (G'O mm ) i ld / /',,_. O! lD h l-B D i O I N E 200 PW '] h (93.37) . ;,4 g A s _ C C,,.,, g } { 20 3/c /r14 E ~ 53 pg (cuuTk :.. (-1B*C) O - 15 9 c, # 10 / O I 2. 3 (CONTROL CAE'_E) FIRE TEST Tiv.E, HOURS. PLAN T l E 8 I l ! B ( Okt 0 ^ E-l' FLAUCE) " D (oM 1 THERMAF!bE.R) fC , p ~ g(f.B kg ) ruedwa!Lb_ 4-e(Ou v = THETRMAT:lkd'.Etu ni " Fi< cat.LE.) to ),a P ~ 'E*EET METAt-j } COL L A 54. mm WE'T"'E) OM LEE.\\/E) . g. 4. j ?>g -.., ...I 1-B (OM CABLE) 4 ' i M v ' 4 di % g.G x457.8%) d THEA.MOCOUPLF. LOCATIOUS (504.6mm)2" - rAE $"M cEO.rs FOR DETAIL. Dk { TRAY SEC. ICM "Dg-Dg" T l l DETAILS AND RECORDED TEMPEkATUL'ES FOR Dr D: FIG. 7
t SOO (426.'l"C) o o h. Q o o _O O-o eg i i o_O g s i O -) GOO o p (315.5'C) i C C M I E !q 2 hl 400 f / l MA *C) O .,-v'[ i y f D f ",. I & 200) I is-e(ou ](93rrc T W F.' 'N M FIE E E 13-lij 14 - 6 E I5-(OU CAf5LE) ..b Pf 3-B (ou (-IS*c) o 4-
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SLEEVE) 1 ~4 "- 'd O I a s HOURS Flp,E TEST TIME 3 THERMOCOUPLE LOCATI'.;' ;.- OU CETAIL cg Fg 4-no * /c W l O (CObJTROL CAnd,LE.) 20- %,* w (CC*JTROL C&BLE) F i 4- 's-(203.2mm) (152 A mm) G" *% - 8" Dl A. SHEET METAL STCNE PIPE 4 4 (isa.4mm) - } g ;"4.;., y c-o.swo) - '9-LB. DEM s ti'Y THERMAFIECM m SECTIOU "F - Fg" g DEWt_5 AUD RIICORDED TEMPERATURES FOl4 DETAIL -- Fg FIG. 8
soo Ms.rc) o o u o O O Oo y a_O f-0 x soc ](3155'C) Jo o W i 3 u. 3 400 W(a)(Ac) F-i o / / f-f s-a (Okt F/C. I c.T c,vFruv.) g gag ig_ e, g(cy3.yc) f g-- (ou caste) f 1 i i u >*-lG_-B [OU y {-. -f g SLEE 6,: (-1a c) o O I 2 3 THEia'MOCOUPLF_ LO,Y 10' ; FIRE TEST TIME., HOURS Ou Ot.6 AIL F2 F2 4-2 3/c: 4/o (WWER CASLE) Gr '/c N 500 MCu (POWER CABLE.) F2b ~5'"#E?E5uu (205,2mm) q (203.P.mrw o. . -8 gyyQ (1016 mm) 4" { ?.'d l, wy*y *4'.f.) [appgox. 3C THERMAFitSEK SIIC.TICW" F -F " 2 2 DETAILS AUD AECORDED TEMPERATURE.S FOR DETAIL-Fp_ FIG. 9 u
800 @sa*c) 1 o _O O-o y o ~' O O_>% j (315.5'C) Go? -B C 0 W i g /t b ADO M (204.4 *C) i i- ~ l 0 IdQ& 200 20-E 8(%3*c) ( WC 2 'E) ' 7-c(ou P:FE g 2" i= OM TOP) g L.. _ _ _ _ __ - e^: = ^ f- (so.s mm) \\ g (-18'C) O . + ie - e (o u p m :_ O t E 3 p.*; 8,s, 4y FIR.E TEST TIME, HOURS' ] TWERMOCOUPLE L~) ATi OLL~ q b OU DETAIL Q2. 2 lo 3 /c ei4 (CONTROL CA!" LF.j hk ' (CONTgL CABLE) @ 1 rq # n j n ") 4-9 +io (IM53 m) '/ C-2.7 m Qp
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{ME%& i v(76.2mm) (101.6 mm) SECTI Old " Gi g-G,2" DETAILS AMD RECORDED TEMPEkKTUki-- FCR DE'IAIL-Gli g F IG. 10
800 (4E7'C) o o u. o o O O o [ o ~O O o f(3:$!) I-I r-h I W I i Q. I 1 403 / l W(m4A c) f l-l c d O E. P_OO BID' ) E 22-6 egu M6LE/ l (-IS*C)O l! ..,. 6(OM PIPE) e-= o 1 g a c.h }.,.. m ,v.,.. v. .4. HOLJRS FIR.E TEST TLME y THERMOC9UPLE LOW' *' Ou pt-~i A.l L. H p_ H 2 ,_.3j g 14 (powkR CABL E) if ) , ll b g ( E) -[ $T9M' c., f.,u M (edi.smm.),N 4 z S L Efr V E - Goi.Gmrn) U< ' A l * *~^ M y-(%.a mm) y B R stICTIOk.J " H2 - H;,* m Y FIG.11
l l l o' j 2000 (IO93 3*C)I I er ASTM Ell 9 i hl i a I l l I W 1500 i F (sis.s ac) ( MEASURED ldd W i I i D. y) 1000 t - - - '-- - -~ '~ O (537.7"c) 1 4 l Id i y 500) ( DC 2 N -) I h. i I (-18 C) O o i a a 4 Flp.E TEST TIME HOURS 3 FI G.12.- FLIPJJACE ATMOSPHER.r_ TEMPF R42n'ud (6.VC,. OF 5 THERMOCOLJPLE REAC'MSL ) DURILIG, FIR.E TEST C'3MPAR.E D VJITi i ASTM E. I19 STAUC.ARL. = = = _
~ . c. A s. ' E s. nn M h. i'w* ' ~ ' A ~- ~ ... :.. s c. >. -J.u . w... NORMAN L. SCOTT PE.SE ARMAND H. cUsTAFERRo PE.SE r LEsLIE D. MARTIN PE.SE GERALD E. GOETTSCHE PE.SE --consultants-C. RICHARD NAsH AIA LOWELL YEREX PE THE CONSULTING ENGINEERS GROUP 1NC. Lake Avenue and Waukegan Road a Glenview, Illinois (Chicago Suburb) 60025 312 729-0646 June 19, 1978 UNITED STATES GYPSUM COMPANY 1000 East Northwest Highway Des Plaines, IL 60016 Gentlemen: Attached is a report "THERMAFIBER ACCESS FIRESTOPPING FOR FLOORS", by D. L. Orals and P. S. Quigg. The report describes a fire test conducted at the United States Gypsum Company Laboratorles in Des Pleines, IIlinois on April 11, 1978. I witnessed the fire test, studied the data, and edited the report. The purpose of the fire test was to gather data on penetrations through floors protected with THERMAFIBER mineral wool firestopping. Penetrations of various sizes were provided for steel pipe, copper pipe, steel conduit, metal air ducts, and power transmission cables. The THERMAFIBER remained in place throughout the 2-1/2-hr fire test and flames did not appear on the unexposed surface. It is my judgment that tha report presents the test data accurately, and the conclusions are justified. Respectfully submitted, ff byp 7 Armand H. Gustaferro Registered Structural Engineer No. 2917 State of Illinois AHG:NS Attach. .s;. 4 ? ',. &~l .f * '.w.,..,
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i tINITED STATES GYPSUM COMPANYfRESE R 1000 East Northwest Highway / Des Plaines, lltinois 60016 cyws:usev THERMAFIBER ACCESS FIRESTOPPING FOR FLOORS Q D. L. Orals P. S. Ou g R3 search Associate Mgr. Structural & Fire Test
...... -;.; m.....; u a ~ >> -. - l. I.* INTRODUCTION: There are many methods of firestopping openings in floors but none.as economical or as easy to install as THERMAFIBER Insulation. THERMA-FIBER firestopping is easy to remove and is reusable, which reduces the possibility of openings being left open after remodeling. This report gives details and results of a fire test on THERMAFIBER Mineral Fiber Insulation used to firestop openings for plumbing, heat-ing and electrical service penetrations through a concrete floor. t SPECIMEN: \\ A floor slab, sized to fit on the U.S.G. Pilot fire test furnace, was cast of lightweight concrete. The slab was cast so that two thick-nasses of. floors could be examined. One-half of the slab, 7'-1" by 4'-4",'was 4 inches thick; the other half 6 inches thick. Each half contained 2 rectangular openings and 6 circular openings as shown in Sketch 1. The floors were penetrated with 5-foot lengths of steel pipe, copper pipe, steel conduit, air duct, and power transmission cable which extended 3 feet past the bottom of the floor into the furnace chamber. l Two sections of 10-foot long, galvanized iron vent pipe were included in the investigation to determine the effect the greater length would have on the temperature gradient along the pipe. MATERIALS : THERMATIBER Insulation (4 pcf), calcium silicate pipe insulation and glass, fiber pipe insulation were used in various ways in firestopping the penetrations. The calcium silicate pipe insulation, 1-inch thick, i was continuous through the firestop, but the glass fiber pipe insula-tion was terminated at the firestop. Previous experience with glass fiber indicated that it would melt and allow flames to penetrate the THERMAFIBER firestopping. The void area between the penetrations and the perimeter of the hole was filled with THERMAFIBER mineral wool to l preven't the passage of flame and hot gases. T/C-Number Description 6" Slab 4" Slab 1 1" Black iron pipe 2 3 1" Copper water pipe 4 5 4" Cast iron soil pipe 6 7 3/C-4/0 Cable (On sheathing) 8 9 3/4" copper water pipe insulated with 1" calcium silicate 10 I 11 3/4" Thin wall steel electric conduit 12 13 1" Rigid electrical conduit 14
s.., a ;,s....+....... u. ..R ..m.... w.. i. <.... n.,.... w .~. e 2. MATERIALS (cont'd.) T/C-Number Description 6" Slab 4" Slab 15 8" x 8" Air duct (20 ga.) 16 17 1/C 500 mcm cable 18 19 2" Rigid galv. steel elec. serv. pipe 20 21 2" Copper water service pipe 22 23 2" Copper pipe insulated with 1" fiberglass 24 25 2" Galv. Pipe insulated with 1" calcium silicate 26 27 3/4" Thin wall steel electric conduit 28 29 Blank (THERMAFIBER only) surface 30 31 2" Galv. iron vent pipe 5' 32 33 2" Galv. iron vent pipe 10' 34 35 Top of 10'-2" galv. iron vent pipe 36 37 Surface thermocouples 38 39 40 41 42 43 3/C-4/0 Cable (on copper next to T/C 47) INSTRUMENTATION: Locations of the thermocouples on the test specimen are shown on Sketch 1. Tsmperatures were recorded on the outside of all the openings in a plane even with the top of the floor. Thermocouples (T/C) were placed on heavy wall steel pipe, rigid conduit, and cast iron pipe by placing the T/C loads into adjacent drilled-in holes and then peening the steel around them to ensure intimate contact. Thermocouples were mounted on the power cables, copper pipe, thin wall conduit, insulation and air duct i l with screws or wire ties. Thermocouples used to measure the temperature differential thru the floor and the THERMAFIBER mineral wool were covered with asbestos pads specified in ASTM E-119. Thermo'co6ple'43 was placed on the interior conductors of the power cable. Thermocouples 35 and 36 ( were placed on the ends of 2 inch galvanized iron vent pipe on the un-l cxposed surface. TEST PROCEDURE: The specimen was subjected to a fire programmed to reproduce the time-tcmperature curve prescribed in ASTM Procedure E-119. Furnace atmos-
3. TEST PROCEDURE (cont'd.) phare temperatures were monitored by five thermocouples located 12 in, beneath the floor. No superimposed load was applidd during the test. The test was conducted on April 11, 1978 at the United States Gypsum Company Fire Research Laboratory. TEST RESULTS: Observations noted during the test are: Min observations 1 Covering over glass fiber insulation burning and peeling off on exposed surface. 1% Smoke coming from glass fiber insulation on unexposed surface. 2 Cable cover burning on exposed surface. Glass fiber insulation fell from 2-in. copper pipe. ] 5% Coating of cast iron soil pipe burning on exposed surface. 6 Smoking around cables on unexposed surface 4-in. thick slab. 10 Smoking around cables on unexposed surface 6-in. thick slab. 16 Coating on soil pipe stopped burning. 24 Flames from cables on exposed surface beginning to subside. 42 Blue flames coming from bottom of several galvanized pipes on exposed surface. 55 Smoke coming from cables on unexposed surface. THERMAFIBER turning dark in area adjacent to cables. 60 Red glow from between group of three cables on unexposed surface of 4-in. slab. 90 Blue flames still coming from bottom of galvanized pipes in furnace. 150 Test terminated. A summary of recorded temperatures is given in Table 1. Graph 1 shows temperatures at various points at the top plane of the floor. The temperature was measured on the floor as well as on top surface of firestops placed in the openings. Tabulated below are the fire exposure times required for temperature rises of 250 and 325 F above ambient at selected locations. Time, Minutes, Required for Rise of: Location (at top plane of floor) 250 F 325 F 6-in. concrete 150+ 150+ 4-in. concrete 115 132 6-in. THERMAFIBER in hole 150+ 150+ 4-in. THERMAFIBER in hole 42 58 6-in. THERMAFIBER in slot 43 48 4-in. THERMAFIBER in slot 31 35 s
4. .l TEST RESULTS (cont'd.) Graph 2 illustrates the recorded temperatures of large pipes and ducts penetrating the floor with the opening filled with THERMAFIBER mineral wool firestopping. Graph 3 illustrates the recorded temperatures on 2-in. galvanized steel vant pipe and 2-in. galvanized electrical conduit with the opening filled with THERMAFIBER mineral wool firestopping. Graph 4 shows the recorded temperatures of copper water pipe with the opening filled with THERMAFIBER mineral wool firestopping. Graph 5 shows the recorded temperatures of the cable sheathing through the floor where THERMAFIBER mineral wool firestopping was used. Graph 6 shows the recorded temperatures of 3/4-in. and 1-in. electrical conduit through the floor with the opening protected by THERMAFIBER mineral wool firestopping. Graph 7 shows the recorded temperatures of insulated copper and galva-nized pipes through the floor with the opening filled with THERMAFIBER mineral wool firestopping. CONCLUSIONS: 1. THERMAFIBER will prevent the passage of flame and hot gases when used to fill the opening provided for passing pipes or cables through a fire-rated floor. 2. Temperature rise through the openings in the concrete floor which were filled with 4-pcf THERMAFIBER was greater than through the concrete floor. 3. Temperature rise through an opening plugged with 4-pcf THERMA-FIBER was less than when a similar opening also contained a penetrating pipe or cable. 4. The length of pipe on the unexposed side has little effect on the temperature of the pipe at the plane of the floor. l 5. Pipes, conduits, cables and ducts passing through a floor achieve higher temperatures on the non-fire side as the f thickness of the floor is reduced. ,~.
0 ..yf 24' i i f l(8) bhd I h ~^ 3 CONCRETE PLUG-8"DIA. l l CONCRETE PLUG-E' DI A. 4 q, y ' $M f 41 g'?\\l. i e 1&._,.. L. -- Q-e
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~~ g.. "A" WA g. .. @m* e v Q ~~O ,~ W$,_ ..?' o m= I .~. .., l. '. :- i. f, ' ---.'., t _. ?l q .. l. t x dLso",.\\ CONCRETE PLUG-4"DIA. s '- 2.%" to", d 24" 4[ .. iz-I J !!.*2[.;' .( {; c j, #l j.J., i; ~- i s 4-4-Au 2e.gz . f u s'-9" SECTION " A-A" n D.L. ORALS UNITED STATES GYPSUM CO. -secETCN No. oR. A. POLIS csc. RESEARCH CENTER DES PL.AINES 18 l USG PILOT FIRE TEST 7d TZ-LOO 3 APPR. oATE 4.-19 -78 THERMAFIBER " POKE -THRU" , x,t,o/g. i o"7 t REVIslONS P tlNT eSSUED FORM. FOR RESEARCH USE ONLY O-eted 98 80 (Paenfes see U.S. A.)
TABLE 1 --
SUMMARY
OF RECORDED TEMPERATURES DURING FIRE TEST Starting Temp. 67 F Temp. (Degrees F) F/C #240 Pokel hr Time (Minutes) 5 10 15 20 25 30 40 50 60 70 80 90 100 110 120 130 140 15, T/C NUMBER 1 92 387 379 385 402 419 451 482 504 524 537 546 552 562 568 576 584 59l 2 144 295 399 476 534 575 639 682 724 747 755 763 778 794 807 820 837 8 41 3 208 370 465 512 543 573 615 648 675 690 704 706 701 726 732 739 754 7 51 s 4 319 516 637 693 735 779 836 887 926 932 938 948 965 978 992 1005 1022 1031 5 85 142 242 328 403 457 543 607 659 703 732 757 773 790 803 814 831 ~37 i 6 114 229 364 4?2 593 663 773 862 939 970 993 1007 1020 1040 1035 1071 1097 1111 7 78 123 159 198 246 303 364 435 481 530 570 581 586 595 587 608 612 63l j 8 92 121 144 167 195 218 235 248 266 291 300 316 334 355 377 370 427 3 71 {i 9 69 87 90 100 112 122 152 147 178 220 231 242 257 266 279 275 350 29) 10 108 140 154 158 156 _159 134 153 205 285 302 318 364 389 338 395 328 3 91 i 11 113 143 178 216 224 .166 284 291 324 331 359 377 397 415 423 418 370 42l 12 170 274 352 414 414 490 523 551 602 631 641 655 663 669 682 692 707 71: 13 103 182 266 339 375 433 481 515 540 576 630 700 815 814 753 702 700 6 91 14 149 279 386 474 543 595 645 684 740 820 936 973 871 852 840 870 862 86: i 15 156 291 385 441 488 533 612 729 803 855 902 941 989 1020 1045 1068 1106 113l l 16 144 243 327 406 454 503 630 736 823 901 963 1012 1042 1058 1074 1085 1112 112: 17 76 104 141 179 222 267 345 385 522 625 647 617 578 582 574 588 596 6 01 1 18 75 109 135 165 195 221 289 336 354 422 377 365 379 384 393 383 355 36a 19 109 192 292 379 445 496 576 637 678 711 745 782 774 771 769 776 789 80! } 20 117 212 328 429 510 569 645 704 753 788 808 816 827 835 845 849 859 8 61 i 21 161 288 377 435 470 501 554 565 600 622 630 647 660 678 697 702 721 7 11 22 158 296 408 478 532 561 596 655 693 706 714 723 735 744 760 769 783 7 81 23 149 232 280 315 340 351 367 396 415 446 453 462 479 510 525 546 602 5 91 24 89 109 127 190 280 296 322 373 431 465 491 501 514 508 501 495 461 4 91 25 71 95 105 115 121 123 128 136 152 162 188 200 214 225 235 238 257 26! j 26 79 106 121 138 155 164 181 214 261 305 347 383 417 449 482 521 572 5 91 27 97 142 177 197 221 221 243 249 261 283 291 297 300 303 312 312 330 33) 28 337 459 514 537 565 585 625 678 720 737 763 755 825 859 882 920 950 9 61 [ 29 67 70 82 96 112 130 169 193 201 204 227 234 241 246 252 258 267 2 71 30 72 110 134 153 182 233 299 354 398 423 435 445 467 490 513 543 586 6 01 31 96 167 250 327 386 431 500 555 594 620 641 675 724 721 705 698 701 7 11 32 168 364 459 525 567 600 650 700 747 766 777 792 806 816 828 840 852 8 51 33 102 181 274 356 417 464 535 597 653 685 714 748 773 815 851 895 884 87< 34 143 254 355 441 506 548 609 650 700 739 759 781 801 818 829 839 856 86: i 35 72 72 75 73 73 74 75 75 75 76 77 78 78 79 79 79 80 81 36 68 71 72 69 69 70 75 72 77 74 76 79 77 77 78 81 80 8 37 67 67 67 68 65 70 74 85 113 153 187 199 202 203 204 205 207 20' 38 65 63 65 68 79 87 134 204 214 215 216 227 256 295 335 377 424 44! 39 73 87 110 117 128 139 277 421 476 473 468 477 494 512 529 546 566 571 40 73 106 124 133 193 296 472 594 654 671 689 716 747 777 804 831 865 881 a 41 66 66 66 66 66 68 71 81 110 160 174 187 193 197 202 204 205 20 43 120 209 224 7 02-373 474 545 628 688 744 776 790 803 814 827 845 873 87 ~ ~
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e bl t 9. e TRANSCOINC. EXECUTIVE O F FIC E S FIFTY FtVE EAST JACMSON BOULEVARD TELE PMON E CHICAGO,lLLINOIS SO6u4 312 /4 a 7. a e e s December 16, 1982 Mr. Ed Seckinger, SNED Commonwealth Edison Company P. O Box #767 Chicago, Illinois 60690
Reference:
Transco CT Gypsum Fire Test Report (Portland Cement Association)
Dear Ed:
As requested, please find enclosed a Transco fire test report for a fire test conducted at Portland Cement Association (Skokie, Illinois) on U. S. Gypsum's Firecode CT Gypsum Cement. A copy of this test report was requested by the NRC during the meeting at LaSalle held on December 14, 1982. I've also enclosed a summary of the test which I wrote shortly af ter the test. A few points about this test which you might want to explain to the NRC when sub-mitting this test report: 1. This test was not conducted to satisfy any requirements for LaSalle. This test was conducted by Transco for applications at all plants, with our primary purpose being to obtain ANI Acceptance of this test. 2. Unexposed side flaming did occur during this test. However, this flaming occurred at one cable only due to auto-ignition, not due to a flame through. This particular cable was added through the completed Cr Gypsum seal to demon-strate a cable retrofit. 3. All cables used for this test were totally PVC jacketed (non-rated) and trays were loaded to 40%. All cables used at LaSalle are, of course, rated to IEEE-383. 4. }io, damming materials remained in place during the test. The CT Gypsum was poured to a nominal fill depth of 5". 5. The CT Gypsum unexposed side surfaces never exceeded the temperature limitations as stipulated in ASTM E119/IEEE-634. 6. The CT Gypsum seals never allowed through passage of fire or smoke to the I unexposed side of the slab and passed two (2) hose stream tests, not allowing aay l water penetration to the unexpos,ed side of the slab. l l l l
a. i 1'FR)AbJ55CC) I bJ C. Mr. Ed Seckinger, SNED December 16, 1982 Commonwealth Edison Company Page #2. I think it's important that the NRC understand completely the differences between this test and the seals installed at LaSalle. This Test LaSalle ~ Cables All PVC (non-rated) All IEEE-383 rated cable Damming None left in place All left in-place f Unexposed Surface Acceptable per ASTME119'/IEEE-634 Temperatures Hose Stream Testing Passed 2 hose stream tests per IEEE-634 (Method #1) and ANI (Method #2) With these factors in mind, the NRC should be able to make a fair evaluation of this test. Sincerely, TRANSCO INC. hk Tom Hoff L (J Project Manager Encl. cc/ Mr. Lowell Johnson
December 9, 1980 h no 10 IDvell Johnson a William Waito Fmn: ' Ibm Hoff l
Subject:
pCA Fire Test - Summary Please find attached a sketch of the slab layout and a page describing item shown on the sketch, and the testing standards used for this test. 'Ibe test was held on Monday night, Novenber 17, 1980. Eis fire test us conducted for three (3) hours at temperatures averaging 18000F. Dere were a total of 48 themocouples placed on the unexposed side of the floor slab in various locations - 12 on the 2 (bnductor Control Cables, 7 on the 7 Conductor Cbntml Cables, and 8 on the 1 Conductor 300 101 power Cables. All of these themocouples were placed at the interface of the gypsum material and the cable jackets and the distribution uns 3 themocouples on 3 cables per cable tray plus 3 themocouples on 3 cables within the conduit; 1 themocouple was placed on each cable tray at the interface of the gypsum naterial and the cable trays, for a total of 8 themocouples; 10 themocouples were placed directly on the gypsum surface,1 in front of each tray and 2 in the mid-section; the last 3 themocouples were placed on the concrete slab at randan locations. 0 In the solid bottan cable trays, the highest cable tenperatures recorded wem 1229 F (2C), 883 F (7C) and 11820F (1C). In the ladder back cable trays, the highest cable temper-atures recorded were 10880F (2C),1248 F (7C), and 1181 F (1C). 'Ibe highest temperature 0 0 recorded within the 6" conduit was 6060F (IC). % e highest temperature mcorded on a solid bottom cable tray was 5050F and on the ladder back cable tray, 4050F. The highest tenperature recorded on the gypsun surface was 3850F and on the concrete surface,1470F. 0 %e average temperatums recorded were 8bOOF (2C cable), 776 F (7C cable), 965 F (IC cable), 0 369 F (solid tray), 360 F (ladder tray), 203 F (gypsum surface) and 133 F (concrete 0 surface). A temperature of 700 F (maximun allowable cable tenperature per IEEFe634) or greater was first recorded on cables at the following times - 75 minutes (2C cable), 80 minutes (7C cable), 75 minutes (IC cable). A temperatum of 4020F (maximum allownble gypsum tonperatum per ANI @ 770F ambient) or gmater was not reached on the gypsun surface during this test. Snoke was noted in all the solid back cable trays between 26 minutes and 35 minutes. Stroke was noted in all the ladder back cable trays between 35 minutes and 55 minutes. At 86 minutes, flaming occurred (and was quickly extinguished) on a 1C 300 101 cable within a solid back cable tray. 'Ihis was the only flaming which occurred on the unexposed side of the slab during the entim test. %e test was tenninated at 180 minutes and two (2) successive hose stream tests wem conducted. %e first hose stream test was conducted per ANI Method No. 2 which requires a 1-1/2'_' nozzle,15 degree discharge angle, nozzle pressure of 75 psi, nozzle discharge of 75 gpm and a distance of 10' for a period of 2-1/2 minutes. % e second hose stream test was condu&d perIEEEh634 which is identical to ANI Method No. 2 except the discharge angle is 30 degrees instead of 15 degrees. Both bose stream tests wem. successful with no water what-so-ever penetrating the gypsum seal in either the tray opening or the conduit opening. OBSERVATIONS: 1. 'Abe cable which ignited (1C 30010! cable) was one (1) of two (2) cables which l were added to the penetration after the initial gypsun installation. %ese two cables were added to demonstrate gypsun's alterability. 2. During the initial gypsum installation, all cables on the unexposed side were lightly a3ated with gypsun to a distance of.I' above the slab. W e cable which ignited was not coated with gypsum above the slab. 0 3. All cable trays contained cables which exceeded 1000 F except one (1) ladder tray which had a maximum cable temperatum of 6390F (2C cable).
h All cable jackets on the unexposed side melted or partially melted at least l' 4. above the slab. As denonstrated by the two (2) successful hose stream tests, no openings occurred 5. in the gypsun seal during the fire test or during the bose stream test. 6. 1be cable which ignited did so because of auto-ignition, not becauce of a burn through. Auto-ignition occurs when the heat generated on the fize side is trans-mitted through the cable to the unexposed side of the slab and the temperature of the 1 cable jacket on the unexposed side of the slab is high enough to ignite the cable jacket (This tenperature is 700 F per IEEE-634). Although all cable trays except one (1) contained cables which greatly exceeded 7. the 7000F ignition limit, no other cable ignited except the one (1) described in I believe the reason no other flaming occurred was because of the light item #1. gypsun coating on all cables (except the cable which ignited) to a distance of l' above the floor slab. In future testing one (1) of tm (2) changes or a combination of both should be made 8. to the gypsun seal we install; 1) increase the fill depth of the gypsun;
- 2) leave damning materials in place.
I would also reconmend applying a light 1 coating of gypsun to the cable jackets above the slab as uas done during this test and this light coating should also be applied to any cables added after the initial installation. 7be gypsun seal used during this test (5" gypsun) was based on successful smaller 9. scale testing conducted by U.S. Gypsum Company. Tbere were several reasons for i renoving all danming naterials after the gypsum installation;
- 1) U.S. Gypsum had successfully tested 5" of gypsun with no damning materials; 2) if damning materials are used and zumoln in place on one (1) side during the floor test, we would be required to use damning unterials on two (2) sides when the same seal is used in wall penetrations, which would increase labor costs; 3) if danming materials are used and remain in place during the test, we would be required to use only those specific damning nnterials used during the test, whereas if no damning materal is is used, we would be allowed to use any non-ccmbustible danming materials to make the seal installaHon; 4) where ampacity is of great concern, danming materials used to nake the gypsum installation could be Iuroved to reduce the ampacity derating factor.
Encls. Tom Hoff
n ~~ 3 ' 'I s, l' I ( i l' __".J m. w a 14' L - 6' = L rus i oo oo go 6" oo o ,d io ~ 5' 9' B-@ 7 . o.,o rgg c 0 0 o 0 0 ,0, g .h Eh A. 9 l l v l O TRANSCO I N C. urcs. or _ FIRE TEST LAYOUT ,FORTLAND CD,ENT ASSOCIATION O-55 EAST JACKSON BOULEVARD CHICAGO. ILLINOIS.6060 O osvs. s o. "^" O ^^~~ 2-et-at, 5Te R F vl 5 IOel l L E T. I ^"""' -SC^'" NOE
- Si m NO. 1
t.' f, T.R.A N S C O I N C. FIRE TEST IAYOUT - IORI1AND CD.!ENT ASSOCIAT]CN SLAB DESCRIPTION: 1-9' x 14' x l' thick concrete floor slab PENTIRATION' DESCRIPI']ONS: 1-5' x 6' opening with 8 cable trays (4 solid & 4 ladder) containing A. assorted non-IEEE rated cable - sealed with 5" Firecnde CT Gypsun Cement. B. 1-6" conduit (flush) with assorted non-IEEE rated cable - sealed with 5" Firecede CT Gypsum Cement. CABLE TRAY DESCRIPTION: Solid Bottczn - U.S. Gypsun Company Globe Tray 4" x 18" x 16 gauge - steel Ladder Back - U.S. Ofysun Company Globe Tray 4" x 18" x 16 gauge - steel CABLE DECRIPTION: ATerican No.16 'I\\vo Conductor Contml Cab 3e American No.12 Seven Cbnductor Contml Cable General Electric 300 hm One Conductor power Cable
- All cable have polyethylene insulation with PVC jacket
" except 300 LG which has an outer PVC jacket only. TESTING STANIlVE:_ ASTJ E119 and IEED-634 - 3 hour duration Hose Stream Test - ANI liethod No. 2 t l
- 1..
l l
x ~ a j, ~ ~ i. F~ PROPERTY ENGINEERING DEPARTMENT \\ (( John J Coney. Vce Presdent \\v L_ BURT C.PROOM,CPCU Presidert August 5, 1981 Mr. Tom Hoff Product Manager Transco, Inc. 55 East Jackson Boulevard Chicago, Illinois 60604
Dear Mr. Hoff:
We have reviewed the Transco Fire and Hose Stream Test Reports of Penetration Seal Systems A through H submitted with your letter of June 26, 1981 to Bill Bornhoeft. These tests of cable and pipe penetration fire stops were conducted at Construction Technology Laboratories of the Portland Cement Association on fiovember 17, 1980, and March 10 and 11, 1981. Enclosed are two copies each of the ANI/MAERP Fire Stop System Acceptance fonn for the configurations that successfully passed the fire endurance and hose stream tests. ANI cannot extend acceptance to your repair procedure for FIRECODE CT Gypsum Cement at this T.ime due to the burn through at Cable Tray-- No. 3 where the two power cables were added to simulate a repair. If we can be of any further assistance, please do not hesitate to i contact us. Sincerely, < h 4 [?" gS pt::\\ C. 9/.[i'.{y J. - - ' t.9 Robert F. MacMillan 9 Project Engineer RFM:dm , c. g;$5CO' \\VO- (g Encl. im t% ve 24s/ 2monym w/ Fomym Cm-eum 06032[Gm677-7335 m Erg Dept.t203 :~7-77
/ / \\ "* "W MAERP >// T NUCLEAR /,- t_ NSURERS MUTUAL ATOMIC ENERGY REINSURANCE POO l ACCEPTANCE OF TESTING" (forinsurancepurposes) CABLE AND PIPE PENETRATION FIRE STOP SYSTEM The following fire stop supplier or installer has successfully completed the "ANI/MAERP Standard Method of Fire Tests of Cable and Pipe Penetration Fire Stops". FIRE STOP SUPPLIER OR INSTALLER: TESTING ORGANIZATION: TRANSCO, INC. PORTLAND CEMENT ASSOCIATION CHICAGO, ILLIN0IS SK0KIE, ILLINDIS,- TEST DATE: 11-17-80 and 3-11-81 l HOUR RATING: 3 GENERAL DATA CABLE PENETRATIONS PIPE PENETRATIONS Max. Penetration Size 5' X 6' 4" pipe offset in 12" sleeve Accepted for Floor YES YES Accepted for Wall YES YES FIRECODE CT Gypsum Cement Same as for cable. Material Density: 25-30 lbs./cu. ft. Fire Stop Thickness 5" FIRECODE CT Gypsum' Same as for cable. Noncombustible forming Same as for cable. Form Material material used and removed. l SPECIAL LIMITATIONS Tray Types: Open Ladder & Solid Bottom Cable Construction: No Limitation % Cable Loading: 40%
- Tray, 3%
~ Conduit Max. Conduit Sleeve Size: b" (Note: % Loading = Total Cross-sectional area of cable / Cross-sectional area of tray / conduit Complete details of proposed fire stop installations are to be submitted to American Nuclear Insurers or Mutual Atomic Energy Reinsurance Pool prior to actual installation. Acceptance of the testing is only for insurance coverage related to fire protection of the property and is based on information provided. This form is valid for two (2) years from the date issued unless withdrawn prior thereto. Rev. 4/81 .1,,1 v 4n, 1993 H, C w -/ farn) ' Date Issued // John J# Carhey '
f s f.v Report to i TRANSCO, INC. Chicago, Illinois 60604 i FIRE ENDURANCE TEST ON TRANSCO PENETRATION SEAL SYSTEMS IN A i CONCRETE FLOOR UTILIZING FIRECODE CT GYPSUM CEMENT k i 5- ' 3.. . ?. / i I by Melvin S. Abrams f 1 I l l i Submitted by CONSTRUCTION TECHNOLOGY LABORATORIES A Division of the Portland Cement Association 5420 Old Orchard Road Skokie,_ Illi nois - 60077 April 1981
i S TABLE OF CONTENTS Page 1 SYNOPSIS .~ 2 SPECIMEN DESCRIPTION 2 Reinforcing Steel ~ 2 Concretc '3 FIRECODE CT Gypsum Cement 4 Damming Materials THERMAFIBER CT Felt 4 Carborundum Fiberfrax Hot Board 4 ~ 4 Cable Trays Electrical Conductors 4 - 5 Conduits .5 Angle Bars FABRICATION AND CONDITIONING OF TEST ASSEMBLY 5 Concrete Slab 5 Penetration Seal Systems 7 Area A 8 Area B 9 Description of Test Furnace. 16 TEST RECORD 18 Test Specimen 18 Fire Test Method. 18 Hose-Stream Test Methods. 19 TEST RESULTS-. 22 Character and Distribution of Fire. 22 Observations. ~. 22 Observations After Hose-Stream Test 25 Unexposed Surf ace Temperatures 25 Temperatures of Electrical Conductors, Cables, J ackets, and Cable Trays 28
SUMMARY
28 LABORATORY RESPONSIBILITY 30 REFERENCES 31 APPENDIX A 32 9
a o o FIRE ENDURANCE TEST ON TRANSCO PENETRATION SEAL SYSTEMS IN A CONCRETE FLOOR UTILIZING.FIRECODE CT GYPSUM CEMENT - by Melvin S., Abrams* SYNOPSI S This report describes fabrication and test procedures and lists results of a fire and two hose-stream tests conducted on two penetration seal systems. These systems were contained in. two areas of a 9-f tx13-f t x 12-in. thick flatplate floor specimen. One penetration seal system consisted of FIRECODE CT. Gypsum cement 5-in. thick surrounding eight cable trays in a ~ 5x6-ft opening. The other seal system consisted of electrical conductors surrounded by 5-in. thick FIRECODE CT Gypsum Cement in a 6-in. diameter metal conduit. The test was conducted to evaluate the performance of the discrete penetration sdal systems and not the performance of the floor assembly. The specimen was exposed to.the Standard time / temperature relationship given in ASTM Designation: E119 (1) ** for three hours.
- Director, Fire Research Department, Portland Cement Association, Construction Technology Laboratories, Skokie, Illinois.
- Superscript numbers in parenthesis designate References on Page 31.
l _1_
l Immediately after the fire test, the specimen was removed from the furnace and exposed to two hose-stream tests. These- , hose-stream tests met prov s ons of American Nuclear Insurers i i (ANI) Method No. 2 (2) and IEEE 634-Method No. l..f 3) Flaming on the unexposed surface was noted at I hr.26 min ' f ter start of test in the area of Tray No. 3. The flame was a extinguished by covering with ceramic fiber blanket material. The test continued until a 3-hr exposure time was reached. Limiting ' temperature increases were not reached on the unexposed surfaces of the concrete or the FIRECODE CT Gypsum Cement., No water from either hose-stream test penetrated the seal systems. SPECIMEN DESCRIPTION Following is a description of the materials used in the ~ construction of the concrete floor slab and penetration seal systems. ' Reinforcing Steel All steel reinforcing bars and stirrups used in the concrete I4) slab were ASTM Designat' ion: A615 Grade 60 steel with a minimum yield strength of 60,000 psi. Concrete ( Concrete was made with sand.and gravel from Algonquin, Illinois. The aggregate is predominantly dolomitic. l l Ready mixed concrete was used. One test was made for slump, 1 l unit weight, and air content from approximately each cubic yard l l
of concrete. Batch quantities, properties of plastic concrete, and strength information are listed in Table 1. TABLE 1 - MIX DESIGN AND CONCRETE PROPERTIES ~ ktem Quantity Type I Portland Cement, lb/cu yd 517 Water, lb/cu yd 258a Sand, lb/cu yd 1,340 Gravel, 1-in. Max. Size, lb/cu yd 1,830 Air Entraining Admixture, fl. oz. 6.02 Average Slump, in. 3-7/8 Average Air Content, % 5.5 Average Fresh Unit Wt., pcf 148 Average Compressive Strength at 28 days, psi 4,940 abased on saturated surface dry (SSD) aggregates. FIRECODE CT Gypsum Cement FIRECODE CT Gypsum Cement, is a specially formulated light-weight, frangible gypsum cement which expands upon setting. Flow characteristics have been designed to permit complete filling of voids between cr51r. vithout excessive lateral flow' when properly mixed an( 6f/t 'ad. FIRECODE CT Gypsum Cement requires only the addition of water to mix and can be applied either by machine or hand. FIRECODE CT Accelerator, dissolved in voter, can be used with FIRECODE CT Gypsum Cement to quicken set time. D. r
Damming Materials The following materials were used to contain the. fluid gypsum cement during the time required to form a solid mass. All danning materials were removed after the FIRECODE CT Gypsum Cement hardened. THERMAFIBER CT Felt' THERMAFIBER CT Felt is a 4-lb/ft nominal density, high-j melt point compressible mineral fiber felt easily cut and shaped with a serrated knife. It is used as a form for retaining poured FIRECODE CT Gypsum Cement in floor and wall firestop openings. l Carborundum Fiberfrax Hot Board Fiberfrax Hot Board is a refractory bonded rigid insulation processed and dried on special insulating block equipment. It l ~- is manuf actured to be flat and true on all surf aces and has a uniform composition and density throughout. Cable Trays [ All trays used were US Gypsum Company Galvanized steel trays, 5-ft long, 18-in, wide, and 4-in. deep. Four solid bottom and four ladder back trays were used in the test specimen. Electrical Conductors All copper wire electrical conductors used to fill trays (5) and the conduit were non-rated IEEE-383 cables. ' Cable types are listed below: (a) 600V, 2/C 616 AWG, polyethylene insulation, PVC jacket each conductor, PVC j acket overall. ' ~
^ O e e (b) '600V, 7/C $12 AWG, polyethylene insulation, PVC jacket each conductor, PVC jacket overall. (c) 600V, 1/C, 300 MCM, PVC overall. ~ Conduits - The 6-in. diameter pipe used in the test assembly was a nominal 6-in. diameter, schedule 40 pipe with 6.625-in. O.D. and 0.280-in. wall thickness. Angle Bars Structural angle bars 3x3-1/i6 in. secured to the, slab,were used to anchor cable trays and electrical conductors in the conduit penetration system. FABRICATION AND CONDITIONING OF TEST ASSEMBLY Following are details concerning the fabrication and con-ditioning of the concrete test slab and penetration seal systems. Concrete Slab The 14-f t long x 9-f t wide x 12-in. thick concrete floor slab was designed to simulate a simply supported span of a con-crete structure exposed to fire on the underside for a minimum period of three hours. Design of the flat slab generally fol-lowed the strength requirements of ACI Standard 318-77(6) The slab contalned two areas consisting of a pipe embedded in the concrete, and an opening to accommodate the penetration systems. The penetration systems were positioned in the slab as shown in Fig.1. _q_
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o A615 All st' eel reinforcing bars were ASTM Designation: Number.7 Grade 60 steel with a minimum yield of 60,000 psi. Stirrups were and 8 bars were 'used for major reinforcement. in, on center in f abricated from No. 3 bars and were placed 12 7 the long direction. Concrete was distributed into the form with an overhead The top dumpbucket and consolidated.with internal vibrators. '\\ surf a~ce was leveled with a screed and finished with a magnesium float. t i Concrete was cured in the form under damp burlap for 7 days. The specimen was then lif ted from the casting frame, placed in and exposed on the bottom surface to tem-the floor furnace, peratures of 200-450F for 7 days. Penetration Seal Systems The test assembly was divided into two areas, each contain-The large opening (Area A) Fig.1 con-ing one seal system. tained a seal system consisting of eight cable trays surrounded The other with a 5-in. depth of FIRECODE CT Gypsum Cement. containing system, (Area B) Fig. 1, was a steel pipe conduit depth of FIRECODE electrical conductors surrounded by a 5-in. CT Gypsum Cement. Damming materials were used initially to f acilitate the installation of the FIRECODE CT Gypsum Cement until set but Carborundum Fiberf rax " Hot Board" were then entirely removed. I (supplied in 2x4 f t x 1 in. sheets) was used to dam all areas of the opening except those areas in and around electrical Cable areas were dammed using shredded U.S. Gypsum 1 I cable. l -
THERMAFIBER CT Felt (supplied in 2x4 ft x 4 in. batts)". THERMAFIBER CT Felt was the only damming material used in the 6-in. opening. ' Damming and FIRECODE CT Gypsum Ccment installation activ-ities were pe$ formed by'Transco and U.S. Gypsum personnel following Transco Quality Assurance Procedures FSQAP 8.0 and 9.0, respectively. Other applicable Transco QA procedures were also utilized to perform this work. A Quickspray Carrousel Pump was used to install the FIRECODE. CT Gypsum Cement. Hand mixing and applications were also utilized in some cases. All FIRECODE CT Gypsum Cement applica-tions were accomplished following applicable" Transco QA pro-cedures and in accordance with U.S. Gypsum Technical Bulletin TAC-216/USG/10-80. Following is a description of each of the penetration seal systems and the installation details for each. area. Area A - This area was 5-f t wide x 6-f t long and contained one penetration seal system consisting of eight cable trays loaded with electrical conductors. The installed FIRECODE CT Gypsum Cement was air dried on both sides using electric fans for approximately four (4) weeks prior to the fire test. l The four ladder-back trays were located in line on one half l of the opening. The four solid back trays were positioned in line on the other half of the opening. Trays and cables were surrounded by a 5-in. depth of FIRECODE CT Gypsum Cement. Con-ductors were secured to ladder-back trays with plastic ties and i I to solid-back trays with U-shaped, 1/4-in. threaded rods. Trays. e
j e in this aree were supported by steel angles f astened to the .-p-- slab with 1/4-in. bolts threaded into self-drilling tubular expansion shield snap-off anchors embedded into the concrete. Each cable tray was filled 40% full with the, electrical ~ The 40% fill requirement, conductors as stipulated by ANI. based on cross-sectional area of tray, was divided so that each of the three types of non-rated IEEE cables occupied 33-1/3% of i The finished trays were then anchored to the the filled tray. The 5-f t long trays extended concrete slab with angle steel. .1-ft below the bottom surface of the slab and 3-ft above the top surface. Area B - The 6-in. conduit opening was filled approximately 35% full,. based on cross sectional area, with the three types of Cables were surrounded non-rated IEEE electrical conductors. Cables in the with'a 5-in. depth of FIRECODE CT Gypsum Cement. conduit extended 1 f t below the bottom surf ace and 3 f t abov'e the top surface of the slab. Conductors were held in place by securing them to steel angles t qat were f astened to the concrete slab. Details of the penetration systems are shown in Figs. 2 i through 9. In order to evaluate a repair procedure, two 1/C power cables were removed from Tray No. 5 and installed in a hole made in the FIRECODE CT Gypsum Cement of Tray No. 3, as shown These power cables were not coated with FIRECODE in F ig. 10. CT Gypsum Cement,above the unexposed surface of the penetration l l _9_ 1
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seal syst'em, whereas all other cables were as a result of normal installation of FIRECODE CT Gypsum Cement. ~" [ ' - Forty-eight thermocouples were placed on the cables, t r ays, - -- and on the surfaces of the FIRECODE CT Gypsum Cement and con-crete on the unexposed side of the test specimen. Thermocouples on the cable jackets were placed at the interface of the at the center FIRECODE CT Gypsum Cement material and the cables, and quarterpoints in each cable tray. Three thermocouples were I interface of the placed on cables within the conduit at the FIRECODE CT Gypsum Cement material. One thermocouple.was placed on the side 5f each cable tray at the interface of the FIRECODE Ten thermocouples CT Gypsum Cement material and the cable tray. were placed directly on th'e FIRECODE CT Gypsum Cement surf ace, one in front of each tray, and two in the mid-section of the Three ~ opening betw'een the trays in the longitudinal direction. Locr tions and thermocouples were placed on the concrete slab. numbers of thermocouples are shown in Fig. 11. I7) Description of Test Furnace The burner system, hydraulic systems, and other systems of the Portland Cement Association ~ (PCA) furnace are uniquely dif-ferent than other floor furnaces in this country and Canada. Simply described, the floor furnace is a~ rectangular shaped, refractory lined steel box heated by six high-capacity gas Test specimens are nominally 14x18 ft and serve as burners. the top closure of the box. In the Transco test, two 9x14-f t . slabs were used, one contaIning the penetration seal systems, and one to cover the other half of the furnace. The specimen
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i. was supported on angle iron members fastened to the restraining b ' elements surrounding the perimeter of the furnace. ~-' f TEST RECORD The fire and hose-stream tests were conducted in accordance with the provisions of ASTM Designation: E119, I1) ANI Fire-634-78.(3) Test Guidelines,(2) and IEEE Test Specimen The concrete slab of the test assembly was designed and fabricated by CTL personnel. Cables and cable trays were cut to the proper length. Cables were ~ installed in the cable trays and cable trays installed in the concrete slab by CTL personnel. Damming, materials and the FIRECODE CT Gypsum Cement were installed by Transco and U.S. Gypsum personnel. Damming materials,were removed by Transco personnel. Fire Test Method The test assembly was supported on two edges and tested as a simple supported span in the test furnace for floor assemblies of the Construction Technology Laboratories. No service loads-The underside of the assembly was exposed to the ~ ~ were applied. time / temperature relationship described in ASTM Designation: Figure 12 shows the test assembly installed in the E119. 4 furnace. Furnace atmosphere temperatures were measured with 15 thermocouples that were placed 12 in. below the underside of 1 the concrete slab. ASTM Designation: E119 furnace atmosphere 6 temperatures, average measured temperatures, and variations of / t 10.
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6 ( the measured temperatures from the ASTM temperatures are listed ~" in Appendix A. The unexposed surface temperatures of the FIRECODE CT Gypsum Cement were measured with 10 thermocouples, each covered with a standard asbestos pad. Unexposed surface temperatures of the concrete slab were measured with three thermocouples,'each covered with a standard' asbestos pad. Thirty-five thermocouples were used to obtain temperature information on the cables, trays, and the conduit. All thermocouple locations are shown in Fig. 11. Complete temperature information is given in Appendix A. to note Observations were made throughout the fire test character'of the fire, condition of the exposed and unexposed surfaces, and performance of the penetration seal systems. Hose-Stream Test Methods Immediately af ter the fire test, the floor assembly was removed from the furnace, as shown in Fig.13, placed "in a ver-tical position, and exposed to ANI Hose-Stream Test No. 2. The specimen was exposed to an even spray from a high velocity nozzle set at an included angle of 15 discharging about 75 gal / min. at a nozzle pressure of 75 psi from a distance of 10 f t for a period of 2-1/2 ' in. The exposure time was based m on 100 sq ft containing the penetration seal systems that had an exposed area.of approximately 30 sq ft. When this hose-stream test was completed, the test specimen was subjected to the second hose-stream test which was IEEE 634-78, Test No. 1. In this test, the assembly was exposed to S
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the even spray from a high-velocity nozzle set at an included discharge angle of 30 that discharged 75 gal / min at a nozzle ~ pressure of 75 psi from a distance of 10 ft for a period of 2-1/2 min. TEST RESULTS Observations during the test and test results are given in the following paragraphs: Character and Distribution of Fire The fire was luminous, highly turbulent and well-distributed throughout the test. There were variations in the temperatures recorded by the furnace atmosphere thermocouples, particularly during the first 20 min. of test. However, the average furnace a tmosphere temperature was well within the 5% variation from the Standard time-temperature curve thoughout the 3-br test period. ', Observations During Fire Test TEST TIME REMARKS HR: MIN 0:00-0:05 Insulation on cables in the furnace began to smoke and burn. Furnace filled with smoke and flame from burning cable insulation. Near zero visi- ~ bility made the observation of the exposed surface of the test assembly impossible for most of the test. l 0:26-0:35 Smoke was noted'in all areas of the ladder-back cable trays. ( -n,-
.S TEST TIME REMARKS 'HR: MIN 0:35-0:55 Smoke was noted in all areas of the solid back ) ~' cable trays. 1:26 Flaming occurred at and above the interface of the FIRECODE CT Gypsum Cement and the jacket of a 1/C 300 MCM cable within the area of Tray No. 3. The cable that ignited was one of two cables that. were added to the penetration af ter the initial FIRECODE CT Gypsum Cement installation.' Flames were smothered by covering with ceramic fiber blanket material. 2:15 Smoke cleared in the furnace allowing the obser-vation of the underside of the specimen. All of the insulation was burned from the cables in the trays in the furnace. The FIRECODE CT Gypsum Cement w'as not cracked and appeared intact 1 throughout the penetration areas. 3:00 The furnace was turned off and the fire test terminated. At this time, no flame was observed on the unexposed surf ace. i 5
Additi6nal Observations Af ter Fire Test ~ TEST TIME REMARKS I HR: MIN 3:08 Specimen was lifted out of the furnace. The underside of the specimen was smoking a'nd flaming, as shown in Fig. 13. Smoke was coming from the top side of the specimen. The specimen was placed ~ in a vertical position for the hose-stream tests. Bottom surf ace of test assembly was exposed to 3:12 ANI Hose-Stream Test No. 2. No water penetrated the unexposed surface for the 2-min 30-sec s exposure. 3:20 Test assembly was exposed to the IEEE 634-78 Hose-Stream Test No.1 for 2 min 30 sec. No water penetrated through the unexposed surface of the test assembly. Steam and heavy black smoke filled the area around the test specimen and upper levels of the fire laboratory. Close observations of this specimen was not possible at this time. Additional water from'the fire hose at low pres-sure was applied to the surf aces of the specimen to prevent reignition on the exposed side of the specimen and to inhibit smoke generation. Smoke cleared in the Laboratory enough to allow 3:35 observation of the test assembly. l 4
~ ~ Observations Af ter the Hose-Stream Test Insulation on all of the electrical. conductors on the underside of the test assembly was burned away during the fire test. All cable jackets on the unexposed side of the specimen j melted, or partially melted, at least to a distance of 1-ft above the top surface of the slab, as shown in Fig. 14. No flaming of cable jackets on the unexposed side of the slab occurred during the test except at the retrofit area. No open the ings occurred in the FIRECODE CT Gypsum Cement seal during fire and hose-stream tests. The exposed surface of the specimen after fire and hose-tests is shown~in Fig. 15. Unexposed Surface Temperatures Thermocouples were used to measure temperatures that deve-loped on the unexposed surface of the FIRECODE CT Gypsum Cement. Three thermocouples were used for temperature measurements on the unexposed surf ace of the concrete. Thermocouple numbers and locations are given in Fig, 11. Temperature information for these thermocouples is listed in Appendix A. According to the provisions of ASTM Designation:
- E119, limiting end-point temperatures are reached when the heat-transmission is sufficient to raise the average temperature of the unexposed surface of the material 250F above ambient temperature or when the temperature at any one point rises 325F.
The provisions of IEEE 634-78 give the limiting unexposed temperature rise at 325F above temperature at start of test. ~
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L ( + TRAllSCO (CR4659) - 11/17/80 THERilOCOUPLE REFERElitE CHART "FRAllE PR IllT - THERl10 COUPLE THERl10 COUPLE ;- - 11 0. l10. HO. LOC ATIOli . - - ~, -- 1 T1 CABLE 1/4 PT. II. 9 1 9 2-2 T1 CEllTER CABL$'. 9 3-3 T1 CAELE 1/4 PT. E. 9 4 4 'T 1 E. SIDE OF TRA,Y 9 5 5 T2 CABLE 1/4 PT.. II. ' 9 6 6 T2 CEllTER CABLE ~ 9 7 7-T2 CABLE 1/4 PT. E. 9. 8 8 T.2 E. SIDE OF TRAY 9 ' 9 9 T3 CABLE 1'/4 PT. 'H. 9 10 10, T3 CEllTER CABLE 9 11 11 T3 CAELE 1/4 PT. E. 9 12 ' 1:2 T3 E. SIDE OF TRAY 21 T6 CAELE 1/4 PT. H. 12 1 12 2 22 T6 CEllTER CABLE 12 3 23 T6 CABLE 1/4 PT. E. 12 4 24 T6 H. SIDE OF TRRY 12 5 17 T5 CABLE 1/4 PT. II. 12 6 18 T5 CEllTER CAELE 12 7 19 T5 CABLE 1/4 PT. E. 12 8 20 T 5 11. SIDE OF TRAY 12 9 41 CEllTER OF CAELE BUllDLE 12 10 42 1/4 P7. OF CABLE BUllDLE 12 11 43 EXTERIOR OF CAELE EUllDLE 12, 12 ~ 46 C01.lCRETE SURF. S. . SIDE OF~ SLAB 14 1 13 T4 CAELE 1/4 P T '. II. 14 2 14 T4 CEllTER Cf1 ELE 14 3 -15 T4 CALLE 1/4 PT. E. 14 4 16 'T 4 E. SIDE OF TF:AY ~ 5 29 TS CABLE 1/4 PT. H. 14 14 6 30 T8 CEllTER.CAELE 14 7 31 T3 CABLE 1/4 PT. E. 14 8 32 T8 H. SIDE OF TRRY ~ 14 9 25 T7 CABLE 1/4 PT. H. 14 10 26 T7 CEllTER CABLE 14 11 27 T7 CABLE 1/4 PT. E. 14 12 20 T7 H. SIDE OF TRRY 16 1 33 SURF. Ill FR0llT 0F T1 16 2 34 SURF. Ill FR0llT OF T2 16 3 35 SURF. Ill FR0llT OF T3 16 4 '36 SURF. Ill FRGitT dF T4 . 1C 5 37 SURF. Ill FR0llT OF T5 16 6 30 SURF. Ill' FRollT OF T6
,i, 16 7 39 SURF. Ill FR0llT '0F,T7 16 8 40 SURF. Ill FR0llT OF T8 6 9 47 C0llCRETE SURF. H.S.C. OF SLRE 16 16 10 48 C0llCRETE SURF. H. SIDE OF SLRB 44 SURF. I:E T NE Eli T3..f. T. 7.. 16 11 e e 16 1;t 45 SURF. BETEEli T1 & T5 g..~_ e , e -. .-e= + J e 6 -e e e 4 e ~ g g4 e o e e e O e .e. 5 e O e e e O O e O e e e e 9 e 9 e e 6
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o TRAllSCO (CR4659) 11/17/80 UllEXPOSED SURFACE -TEllP. . TEST TIME, T/C 110. Hr: Min 1 2 3 4 5 6 ~ ~ 0:00 74 73 73 73 73 273 ~ 0:05 75 75 80 78 73-74 ~ 0:10 80 81 102 91 77 82 ~ ' 0:15 87 ' 90 128 107 , 84, 95 0:20 95 100 153 123 94 114~ 0:25 103 116 173 148 107 153 0:30 120 139 189 172 141 178 ~ ~ 0:35 135 150 194 184 165 185 0:40 138 155 195 193 170 195 s 0:45 137 159 ' 194 201 168 207 .0:50 144 ~ 170 204 209 166 221 ~ 0:55 148 174 207 220 167 239 1:00 160 184 227 228 171 270 1:05 166~ 199 268 238 131 3'04 1:10 ' 173 205 306 247 184 322 1:15 188 211 345 258 187 363 1:20 194 210 3'77 267 ~ 95 390 1 ~ 1:25 187 218 416 277 199 409 1:30 1'98 225 446 280 208 446 1:35 197 249 476 287 219 4 7 f, 504 299 231 502 1:40 179 266 1: 45 178 273 535 304 246 546 1:50 178 287 563 306 260 580 1:55 182 325 595 313 273 60'2 2:00 196 366 629 324 288 648 2:10 221 478 725 333 312 758 7D4 879 347 325 858 2:20 221.. 2:30 252 913 '888 341 337 900-2: 40 239 1067 864 339 446 938 2:50 273 1073 801 334 734 982-3:00 354 761 746 316 899 1004 .g G ~ L
- 1.
- TRAllSCO (CR4659) - 11/17/80 UllEXPOSED SURFACE TEl1P.
,~ TEST 'T IllE, T/C NO. Hr: Min 7 6 9 10 11 12' 74 '73 73 . 73 '0:00 73 '- ~ 73 0:05 74 '75 96 75 ' 75 79 0:10 81 83 150 79 84 98 0:15 93 ' 94 213 88 ,. 98 122 .0:20 112 108 259 99 115 155 0:25 157 127 176 122 137 173 224 145 168 180 0:30 205 1'35 L 0:35 206 ~ 139 256 140 190 191 0:40 204 140 288 150 206 200 s 141 319 153 221 209 0:45 202 0:50 ' 200 '148 .351 157 233 .' 222 0:55 209 153 352 -159 242' 233 1:00 230 162 '369 168 253 253 1:05 237 166 347 179 266 271 1:10 253 170 '324 ISS' 290 237 1:15 295 174-316 204 319 288 1:20 333 196 '343 214 345 302 1:25. - 385, 177 332 231 369 292 1:30 422 190 522 279 395 310 1:35 453 169 895 488 426 314 ~ 1: 40 491 169 993 476 468 329 ~ ,1:45 533 159 1052. 512 500 329 1:50 578 163 1100 612 537 336 1:55 641 170 1133 700 583 349 ~ 2:00 712' 170 1147 778 643-348 2:10 915 183 1182 1017 995 368 1218 305 2:20 1016 196 1173 1068 2:30 1032 182 1169 1088 ~1229 - 387 2:40 956 ~ 209 1147 1092 1222 382 2:50 906 211 1155 1093 1202 391 3:00 864 224 1182 1115 1187 401 g l
\\ TRAllSCO (CR4659) - 11/17'80 UllEXPOSED SURFACE TEllP. l T/C it0. TEST T!IlE, Hr:Hin 13 14 15 46 17 18- ~73 72 9:00 74 75 74 73 ~ 92.. 83 78 '81 79 0:05 87 ... ~ - ~ 0:10 122 88 -. ,134 .106. 97*? 112 ~ '195 136 '125 ~152 0:15 169 100. 0:20 230 '112 263 170 ,,156 200 0:25 286 132 269 188 186 264 0:30 387 149 280 200 223 339 303 2'13 248 , 377 0:35 439 158 +- 0:40 475 166 - 331 231 270 403 0: 45 505 174 ,358 250 291 424 459 0:50 540 183 417 273 321 0:55-578 185 " 465 - 293 344 .,486 ~ 1:00 618 189 529 311 360 519' g 332 373 555 liO5' 655. 197', ~591, 1:10 688 203 643 352 390 586 1:15 720 213 658 368 398 622 1:20 '750 216-716 377 416
- 656, 1:25 776 ~
'211 825 393 431 685 1:30 805 209 930 398 440 710 1:35 973 234 968 412' 447 739 1:40 1011 239 998 429 460 773 1:45 998 242, 1007 443-470 801 1:50 988 251 1019 441 477 828 1:55 997 ,257 1039 442 491 869 1046 272 1057 440 504 903 2:00 - 2:10 1080 341 1077 450 559
- 989, 1063 2:20 1062-472 1029 449 634 588
,968 >465 699 1116 2:30 1030 - - 2:40 1002 670 934 476
- 726
!!50 2:50 955 752 894 487 777 1167 3:00 874 783 867 505 796 1181-6 h r-O
6....' 'TRAllSCO (CR4659) - 11/17/80 o UllEMPOSED SURFACE TEl1P. b * ' ~- TEST TIl1E, T/C 110. Hr :llin 19 20 21 22 23 24, 0:00 '72 73 73 73 73 69 0:05 57 6 76 77 75 . 74 73 0:10 89 91 95 86 8 2"- , 85 0:15 106 109 124 103 98 1 4 0:20 125 137 165
- 122,
.121 128.' ~ 0:25 145 159 203 .147 167 159 0:30 171 .165 - 241 179 199 175 0:35. '196 173 277 207 202 ~ 181 O:40 214 178 '345 230 202 186 0:45 228 183 420 252 200 191 0:50 247 190, 481 285 216 198 O:55' '266 200 521 339 233 - 204' ~ l":00 281 211 561 384 251 21'3 1:05 292 227 601 406 280 222 1:10 301 237 637 427_ 312 232 1:15 '316 253 673 447 344 240 1:20 324 268' 710 470 375 248 1:25 3'31 275 744 495 412 258 1:30 331 281 785 522 447 269 1:35 333 286 857 547 479 281 1:40 331 281 930 571 528 289 1:45 633 289 957 592 579 298 ~ 1:50 339 294 973 612 638 307 -
- 1:55 345.
303 990 631 714' 312 2:00 354 316 1006 651 787 . 322 1031 776 990 338 2:10 - 376 330 2:20 - 398 3P3 990 926 1067. 346 2:30 419 338 926 1039 ,1088 365 2:40 456 353 889 1195 923 382 2:50 494 364 835 1248 835 393 376 872 1212 784 405 3:00 530 i g a
e,. +, TRAllSCO (CR4659) - 11/17/80 - UllEXPOSED SURFACE TEMP. ' TEST TIllE, T/C if0. 28 29 30, Hr :lli n 25, 26 27 ~ ~ 0:00 73 72 73 72 74 ' 74 74 85 J 79 74, 0:05 .77 73 0:10 93 ,77 ,77 84 119' 96 0:15 119 ,. 18 5 81 98 161 '116 ~ 0:20 152 96 88 115 .,211 141 ' 0:25 190 108 97 135 261 169 104 153 251 ~198 0:30 215 126 0:35, - 231 155 122 167 259 226, 0:40 243 170 128 172 274 247 0:45 252 180 131 174 291 265 0:50 '266 ~ l'83 ~ ~ 134 178 -316 281 '0:55 28,0 193 143 186 329. -- 287 203 141 188 360 284 ~ 1:00 291 ~ ~ 1:05" 305 212 145 ,196 398 .279 1:10 310 220 152 208 448 277 1:15 308 230 158 212 490 27,9 1:20 182 238-16'S 220 531 292 ~ 1:26 185 248 174 230 566 316 1:30 170 257 , 174 235 605 326 1:35 150 267 iB6 261 646 332 1:40 144 282 193 .266 722 ,347 1:45 .143 299 197 267 741 359 1:50 151 314 201 281. 750 375 y 1:55 146 .329 215 285 782 .'385 345 230 294 ~819 411 2:00 146 2:10 174 372 249 312 1102 557 2:20 173 400 289 313 1094 599 2:30 186 437 330 328 ~958 623 2: 40 205 479 413 338 814 '632 2:50 216 536 485,, 353 701 592 3:00 211 609 639 363 693 541* G s e e y 4 e 9 e G 9
F c. TRAIISCO (CR4659) 11/17/80 UllE:: POSED SURFACE TEMP.- 0 TEST T1HE, T/C 140. -~~Hb:Hin 31 32 33 - 34
- 35. -
36 0:00 .'7 4 73 71 72 72 74 73 - 78 71 72 ~. 0:05 86 0:10 120 94 71 72 71.- '73' ~ ~ 0:15 168 '114 71 -72 72 73 0:20 232 '138
- 71 73
-~ 72 74 0:25 307 160 72 74 73 75 ~ 72 75 73 75 0:30 369 171 ' 0:35 398 179 75 76. 77 81 0:40' 429 185 S4 79 - 93 103 0: 45 459 ' 190 95 82 114 130 ~ 0:50 500 199 : 1'13 87 138 151 ~ 0:55 540 207 128 98 151 ' 158 ~ 1:d0 584 210 150 115 159 ~'
- 161 1:05 628 214 151 132 164 162 1:10 672 219 161 145 167 163
~ 1:15. 710 226 168 149 169 164 1:20 737 204 173 155 170 164 ~ ' 754 194 175 154 170 ' 165 1:25 ~ 1:30 759. 183 177 153 171 165 1:35 768. 231 178 153 184 163' 177 148 '194 162 1: 40 783 254*- 1: 45 799 259 177 146 196 162 1:50 813 266 177 147 197 163 1:55, 854 264 178 147~ 200 164 2:00 884 267 179 149 206 165 2':10
- 916, 268 130 151 222 '
168 2:20 928 265. 181 150 258 170 2:30 935 266 100 150 290 169 315 169 2:40 942 278 183 154 2:50 952 285 186 161 349 169 ~ 3:00 . 967 296 188 167 385 168. 2 e e e e G e b e 6 l h ( l. b
s- ~ ,. 9, w,. ~. ~ 11/17/80 0 " * ~ TR6flSCO (CR4659) UllE ! POSED 6URFACE TEllP. [' (..... T/C 110.
- . L _ lEST TIl1E, Hr-
- lii n 37 38 39 40 41 42'
) 0:00 70 71 _ 71 O 73 74 0:05 .70 71 71 0 76*- 77 0 ' 91 91 0:10 70 ' 71 71 71 71 0 ,,1 13. 116 8:15 70-0:20 71 72 72 0 140 . 149 0:25 71 73 72 76 170' 177 207 0:30 72 74 73 82 202 0:35 74 76 74 99 211 211 = 0:40 82 ~ 86 80 127 214 213 0 : 4'5 92 97 - 83 157 214 213 0:50 102 110 103 166 219 .,215 0:55 113 119 114' 168 226 222 1:00 121 ' 124 121 169 235 233 1:05 131 123 127 170 255 245 1:10 140 132 132 170 267 255 1:15 148 136-136 170 278 264 '141 170 301 274 1:20 .154 139 1:25 161 144 145 .171 320 236 1:30 167 147 148 170 336 300 1:35 .170 150 150 170 350 314 1: 40 172 151 150 168 365 328 1:45 174 153 151 168 381 ", 342 1:50 176 .156 152 166 395 357 1:55 177 158 153 166 409 371 2:00 178 161 ' 155 166 421 390 2:10 180 165 159 167 448' 428 ~ ~
- 479 469 171
,163 168 2:20 182 ' 2:30 183 178 266 168
- 513 505 2: 40 188 192 173,
168 548 536 2:50 192 209 181 168 584 560-167 ~606 573-3:00 196 224 '189 9 9 G I e
- _; u v.* TRAllSCO (CR4659) 11/17/B0 e i. Ul4 EXPOSED SURFACE TEllP. s,. e TEST T1HE, .T/C 110. ~ ~ ' Hr :Hin 43 44 45 '46 4 7 -- -- - 48 0:00 74 72 71 74 74 .74 0:05 ~ 7,4 .,.71 70 74 74 74 0:le 78 71 70 .74
- 74*.
74 0:15 84 72 71 74 _. 74 74 0:20 91 72 71 74 74. 74 0:25 99 73 71 74 74 74 0:30 108 73 71 74 74 74 0:35 122 75 ~ 72 74 74 74 Oi40 136 77 74 74 74 74 0: 45 150 80 75 74 74 74 0:50 159 87 - 79 75 75 74. 0:55 167 95 84 76 75 ., 74 1:00 172 106 91 78 76 75 liOS 179 120 103 80 77 ~ 76 1:10 184 '134. 118 84 78 77 1:15 188 145 135 88 79 - 79 1:20 193 153 150 92 81 80 1:25 197 159 166 97 83 83 1:30 201 163 169 102 83 85 ~ 1:35 204 99 172 105 84 87 ~ 1:40 206 98 175 108 85 89 '1:45 ~209 100 175 111 86 92 1:50 212' 101 175 113 88 95 1:55 ,213 104 176 115 90 97 2:00 213 104 176 118 92 100 2:10 213 112 177 123 96 106 2:20, 212 . 111 177 129 101 112 2:30 249 121 ,1 7 7 134 -106 117 2:40 264 126 177 139
- 111 123
.i 2:50 303 158 178 142 115 129 3: 00 323 160 177 147 118 134 6 4 e u
- o. '"
SARGENT O LUNDY ENGINEERS 55 E AST MONROE STREET C HIC AG O. 0 LLIN OllB S 00 03 (3823 269 2000 TWX 910 2 21 2 00 7 SCE-1827 June 14, 1983 Project No. 4267-02 Commonwealth Edison Company La Salle County Station - Unit 2 Cable Tray Fill Density For HoriEontal Cable Tray Wall Penetration Fire Seals Part of Sargent & Lundy Punchlist Item 3.96 Mr. T. E. Matts Commonwealth Edison Company P. O. Box 767 Chicago, Illinois 60690
Dear Mr. Watts:
After completing our work of identifying all electrical openings in Unit 2 that require fire seals, we have prepared a list of the horizontal cable tray wall penetrations that exceed 40 per-cent of cable tray volume. This information was requested in your letter of May 12, 1982 to Mr. R. H. Pollock. Routing Nearest Cable Electrical Drawing Routing Design Fill Opening No. Number Point Index Density l AB2016 lE-2-3662 182D 1.25 49.1% AB2036 lE-2-3663 274A 1.12 43.9% AB2038 lE-2-3663 307AD 1.05 41.2% AB2041 lE-2-3664 496AG 1.18 46.3% AB2045 lE-2-3664 340A 1.24 48.7% AB2046 lE-2-3364 340B 1.04 40.8% AB2068 lE-2-3665 414D 1.14 44.8% AB2069 lE-2-3665 379GH 1.05 41.2% AB2089 lE-2-3665 480B 1.03 40.4% AB2133 lE-2-3667 543B 1.18 46.3% AB2165 lE-2-3669 655B 1.15 45.1% @@PY
GARGENT Q LUNDY ENG1NEERS CHICAGO Mr. T. E. Watts June 14, 1983 Commonwealth Edison Company Page 2 l The 3-hour fire walls were found using figure 9.5-1 of La Salle County FSAR chapter 9. These 3-hour fire walls were compared l with figure H.2-1 of Appendix H to verify that the 3-hour walls l with electrical openings were required by the safe shutdown analysis. Cable fill density is calculated by using the design index and is equivalent to the method specified in your letter. If you have any questions concerning this, please contact me. Yours very truly, J.S.ESTERMAN J. S. Esterman Electrical Engineer JSE:lw In duplicate Copies: B. R. Shelton R. H. Holyosk G. J. Diederich E. L. Seckinger D. L. Shamblin R. H. Pollock l l @oFY
...c ac q p,.pppy N ,hjn.iini. '. Jd-.. a,. s UNITED STATES CYPSU'] Cf MPANY Y.. : ,724 [. ' W. :;4[y,.,C*,, d tot S. Wac2sr Dnve fa, cmc.. nw.eosos siusri ooo n =:ss. :,.by,mn..., rr e tzn,w a m L June 3, 1983 Mr. E. L. Seckinger Commonwealth Edison - SNED P.O. Box 767 i Chicago, IL 60690 SL".3 JECT: IaSalle County Station 'e USG Fire Stop Systems NRC Allegations and Inspection Results.
Dear Mr. Seekinger:
In compliance with your request, we offer the following comments in answer to the four issues submitted by the NRC regarding the USG Fire Stop and Fire Break Systems. 1. Mixture Control for the FIRECODE CT Gypsum Cement (pages 14 and 15 of the NRC Report). Page 15 - Paragraphs 1 and 2 As previously stated, the water-to-plaster ratios as specified in our brochures (TAC-215 & TAC-216/USG/10-80) are guidelines for the applicator depending on the type of application (i.e., wall and floor fire stops or fire breaks) and the applicators experience. The specified range of 40 lbs. to 65 lbs. of water /40 lb. bag relates to 4.8 gal. to 7.8 gal, of water for ease of application and flowability. 3 The dry density range as published (25-30 lbs./ft ) is not for the effectiveness of the gypsum to function as fire resistant seal, but to allow design and/or project engineers to design the electrical cable tray and support systems. Silicone foams 3 j are specified in densities ranging from 20 lbs./ft to 145 lbs/ l ft3 without losing their effectiveness as a fire resistant material. Therefore, the NRC option that the density of the FIRECODE CT Gypsum Cement is a function of effectiveness as a penetration seal is incorrect. I 1 l J G t.J.'.1 4::* M'2.' n? ' C R GV E."i Y ; N D U ST RI A L EE3 l
Mr. E. L. Sickingar Juna 3, 1983 Page Two Page 15 - Paragraphs 3 and 4 The above paragraphs are not applicable to LaSalle County Nuclear Station. All penetration details were prepared by Sargent and Lundy Engineers (based on their observations of our fire tests and results, see attachment, page 3, Instruc-tions for Detail EA-168B, #3) in April 1979. Factory Mutual Approval was obtained on March 22, 1982, three years after the job started. The Factory Mutual Approval report was submitted to the NRC to assure them that another insuring body (other than ANI) has approved our system. j Page 15 - Paragraph 5 i While the ANI approval for TRANSCO, INC. specifies that the 3 FIRECODE CT Gypsum Cement density will be 25-30 lbs/ft, our ANI acceptance does not specify a density range for the FIRE-CODE CT Gypsum Cement. The majority of all the penetrations at LaSalle County Nuclear Station fall within the guidelines as specified (opening size and composition) of our approval. TRANSCO, INC. approval is an extension of our approval for large openings (i.e., under control panels). Additional Information During the December 14, 1982 meeting, a portion of seal No. 408 had been removed to be returned to USG Research Center for dry density tests. Test specimens from the top, center and bottom of the submitted sample was removed and results were as follows: 2bp 28.0 lbs/ft33 center 26.8 lbs/ft3 { Bottom 26.6 lbs/ft Based on the above results, all densities are within the published 3 density range of 25-30 lbs/ft thus indicating that the correct water-to-cement ratio was used when the seal was installed. 2. Cracking and Separation (pages 10-13) t While we cannot refer to visual cracking and separation prior to conducting a fire test, the following test reports refer to " cracking" during the fire tests. l I .,.--v ,,-,m-. -r-m
Mr. E. L. S;ckingsr Juna 3, 1983 Page Three CONCRETE FIDOR FIRE STOP TEST OF IEEE 393 QUALIFIED CABLE PENETRATIONS - Dated August 13, 1979 070 min. hairline cracks at penetrations N, O & P 0165 min. hairline cracks increased in width to 1/16 of an inch Test terminated @l81 min. Results: All openings passed the 3 hr. fire endur-ance test. All openings except O passed the hose stream test. Note: See details for size of openings and size of cable trays. FIRE STOP SYSTEMS WITHOUT CABLE IN A 3-HR FIRE RATED WALL - Dated September 6,1979 (copy enclosed) Test terminated @l80 min. Results: All openings passed the 3-hr fire endurance and hose stream test. Note: See page 2, identifies the size and severity of the cracks in the large opening. CONCRETE FIDOR FIRE STOP TEST OF NON-QUALIFIED IEEE 383 CABLE PENETRATIONS PROTECTED WITH FIRECODE CT GYPSUM AND THERMAFIBER CT FELT - Dated March 14, 1980 Test terminated @l83 min. Results: All openings passed the 3-hr fire endur-ance and hose stream test. Note: At 48 min. hairline cracks appeared in all cable tray penetrations. Page 12 - Paragraph (b) On page 4 of the above test report, it identifies four penetrations which had cables removed or added to and then repaired. All open-ings passed the 3-hr fire endurance and hose stream test. Since ANI did not approve TRANSCO, INC. repair procedure based on a single opening, it is our opinion that the NRC should rat dwell on l one failure, but accept the results of the successful repairs. To determine the number of breakthroughs in FIRECODE 7I Gypsum Cement and THERMAFIBER CT Felt that will be allowed without degrad-t ing the integrity of the system, our answer to this is ora of " impracticality." At the present time, none of the three specifi-cations (ANI/NELPA, IEEE 634 or ASTM) have provided any provisions or criteria for developing a test procedure to make this determina-tion. If the NRC is going to continue to request this information, then I strongly recommend they contact the above agencies and re-quest that a test procedure be developed to obtain this information. l
Mr. E. L. SIckingar Juna 3, 1983 Page Four l r Page 12 - Paragraph C Please refer to the following test reports: FIRECODE CT GYPSUM CEMENT - THERMAFIBER ACCESS FIRE-STOPPING FOR WALLS - Dated July 24, 1978 Test terminated 0185 min. Results: All openings passed.the 3-hr fire endur-ance test. However, the THERMAFIBER in the large opening failed the hose stream. FIRE TEST OF CONCRETE FLOOR SLAB WITH ELECTRICAL CABLE PENETRATION FIRE STOPS - Dated December 7, 1978 Test terminated 0185 min. Results: See page 7, Detail DI. Note: Apparently the NRC has not accepted the explanation that only the time-temperature curves in ASTM E-119 is applicable when testing penetration seals (see enclosed ASTM E-119 procedures). 3. Breakthroughs (page 12) Refer to explanation of paragraph (b) page 3 of this letter. 4. Dimension of Openings (pages 13 and 14) Page 13 Again, the Factory Mutual Research Test Report J.I OFOAI.AC is not applicable for penetration seals under the control panels. Page 14 - Paragraph 4 When a manufacturer is testing a material or system to obtain a specific fire rating, they will incorporate a multitude of materials (sizes, shapes, etc) in their test designs. This allows the design and/or project engineer the freedom to design standard penetrations based on test results. However, if the penetration 4 is of a unique design that requires additional fire test, then the materials (cable trays, cable sizes, etc) that are specified for-that specific installation must be incorporated in the test specimen.
Mr. E. L. SsckingIr Juna 3, 1983 Page Five In summation, I sincerely hope these explanations will suffice. However, if you require further information, please contact me. Very truly yours, UNITED STATES GYPSUM COMPANY R. L. Bartlett ~ Technical Representative RLB/d1h enclosures cc:
- 151 R. G. Lange
- 173 P.
G. Smith
- 440-3 E. L. Whiteside Mr. Tom Hoff TRANSCO, INC.
35 E. Jackson Blvd. Chicago, IL 60604 l l l l l l 4
s Suhb W strl 1151 Boston-Providence Turnpike Factory Mutual Research nomooe. u.ssocnuseiis o20e2 Telephone (617) 762-4300 March 22, 1982 toi a U.S., Gypsum Company
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!$ gCEdb 4 Dept. 173 [ 101 South Wacker Drive 251982 9 Chicago, Illinois 60606 Attn: Mr. Robert Bartlett \\ T 5 l s Gentlemen: This is confinn we have received your signed Approval Agreement. Yourproduct(s) as covered in Report Job Identification No. OF0A1.AC is now Factory Mutual Approved. Very truly yours, I Deborah Lightbody Admin. Assistant - Mechanical Dept. g - ~ O 1
O ~. AMERICAN MAERP / NUCLEAR INSURERS MUTUAL ATOMIC ENERGY REINSURANCE POOL ACCEPTANCE OF TESTING (for insurance purposes) CABLE AND PIPE PENETRATION FIRE STOP SYSTEM The 'following fire stop supplier or installer has successfully completed the "ANI/MAERP Standard Method of Fire Tests of Cable and Pipe Penetration Fire Stops". ~ FIRE STOP SUPPLIER OR INSTALLER: TESTING ORGANIZATION: U.S. GYPSUM COMPANY U.S. GYPSUM RESEARCH CENTER CHICAGO, ILLIN0IS - DES PLAINES, ILLIN0IS TEST DATE: 1/9/80 l HOUR RATIrlG: 3 GENERAL DATA CABLE PENETRATIONS PIPE PENETRATIONS Max. Penetration Size 8" X 36" 4" pipe in 8" opening Accepted for Floor YES YES Accepted for Wall NO NO THERMAFIBER CT Felt and Fire CODE CT Gypsum Same as for cable THERMAFIBER DENSITY: 4 lbs./cu. ft. 9" arrangement - 4" THERMA-6" arrangement - 2" IHturwidtR Fire Stop Thickness FIBER with 5" FIRE CODE CT with 4" FIRE CODE CT Gypsum Gypsum and a 3" high metal retainer for cable trays & cir-cular ODeninas with cable. Form Material THERMAFIBER CT FELT Same as for cable SPECIAL LIMITATIONS Tray Types: un limi ta tions Cable Construction: No limitations % Cable Loading:100% visual Tray,100% visual Conduit Max. Conduit Sleeve Size:_4" (flote: % Loading = Total Cross-sectional area of cable / Cross-sectional area of t Complete details of proposed fire stop installations are to be submitted to American Nuclear Insurers or Mutual Atomic Energy Reinsurance Pool prior to actual installa Acceptance of the testing is only for insurance coverage related to fire protection o the property and is based on information provided. This form is valid for two (2) years from the date issued unless withdrawn prio Rev. 4/81 May 26, 1983 Date issued L / 6ere / hrn) // John J / Carn?v u
[p D l-AMERICAN MAERP I N MUTUAL ATOMIC ENERGY REINSURANCE POOL ACCEPTANCE'0F TESTING (for insurance purposes) q _ CABLE AND PIPE PENETRATION FIRE STOP SYSTEM t The following fire stop supplier or installer has successfully completed the ANI/MAERP Standard Method of Fire Tests of Cable and Pipe Penetration Fire Stops". FIRE STOP SUPPLIER OR INSTALLER: TESTING ORGANIZATION: U.S. GYPSUM COMPANY U.S. GYPSUM RESEARCH CENTER CHICAGO. ILLIN0IS DES PLAINES, ILLINDIS TEST DATE: 3/6/79 l HOUR RATING: 1 GENERAL DATA CABLE PENETRATIONS PIPE PENETRATIONS Max. Penetration Size 24" X 48" 6" pipe in 10" sleeve Accepted for Floor NO NO Accepted for Wall YES YES THERt% FIBER CT Felt and FIRL CODE CT Gypsum k Same as for cable Material THERMAFIBER DENSITY: 4 lbs./cu. ft. 8" arrangement - 4" THERMA-Fire Stop Thickness FIBER with 2" FIRE CODE CT Same as for cable Gypsum both sides p THERMAFIBER CT FELT Same as for cable ' SPECIAL LlHITATIONS Tray Types: _ nn limitations Cable Construction: No limitations % Cable Loading:100", visual Tray.100" visual Conduit Max. Conduit Sleeve Size: (Note: % loading = Total Cross-sectional area of cable / Cross-sectional area of tray W Ccmplete details of proposed fire stop installations are to be submitted to American Nuclear Insurers or Nutual Atomic Energy Reinsurance Pool prior to actual installati Acceptance of the testing is only for insurance coverage related to fire protection o on. the property and is iased on information provided. This form is valid for two (2) years from the date issued unless withdrawn prior t r R:;v. 4/81 May 26, 1983 Date Issued 9g g ,s / ' John # Car'ney ~ -}}