ML19337A168
| ML19337A168 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 08/14/1980 |
| From: | STONE & WEBSTER ENGINEERING CORP. |
| To: | |
| Shared Package | |
| ML19337A165 | List: |
| References | |
| IEB-79-14, NUDOCS 8009090119 | |
| Download: ML19337A168 (10) | |
Text
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ATTACHMENT NO. 2 l
i BEAVER VALLEY. POWER STATION - UNIT NO. 1 Docket No. 50-334 i
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RESPONSE TO IE BULLETIN 79-14 Stone f Webster Engineering Corp. Report i ^
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l August 14, 1980 yd61oto//7 i
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August 14, 1980 Stone &. Webster Engineering Corp.
I.E.Bulletin 79-14 Report In accordance with IE Bulletin 79-14 dated July 2, 1979, Revision 1, dated July 18, 1979, and Supplements 1 and 2 dated respectively August,15 and September 7, ' 1979, Stone &
Webster is submitting herewith - an interim report for the re-sults to date.
-This report addresses the results of the IE Bulletin 79-14 review conducted by Stone & Webster (S&W).
The effort consisted of evaluating 96 as-built isometrics which were those piping systems that were analyzed originally by comput-er.
The isometrics have been field-verified by Duquesne Light Company (DLC) utilizing Procedure No. MED FP-1 entitled "In-spection Procedure for Determining Agreement Between "As-In-stalled" Piping Systems and "As-Built" Piping Isometrics and Hanger Sketches."
The S&W evaluation was conducted in accordance with the procedure entitled "IE Bulletin 79-14 Evaluation Program" Revision 3 dated August 7, 1980 (Attachment 1).
This proced-i ure addresses the comparison of the piping geometries and pipe support configurations as they presently exist in the plant with the configurations that formed the basis for the seismic analyses of safety-related piping-systems and the evaluation of any dif ferences that exist.
1 b
Due, to the complexity and magnitude of details ad-dressed on each isometric, S&W has pursued a seven point pro-gram for the evaluation.
The initial step following receipt of an isometric consists of a piping stress review.
This is followed by a comprehensive pipe support review of each sup-port detailed on the isometric.
The third step involves in-terfacing the results of steps 1 and 2 and the effects one has on the other.
Fourthly, a compilation of all pipe supports that require reanalysis due to substantial "as-built" discrep-ancies is made.
Following this compilation, those supports are reanalyzed using as-built data.
The sixth step involves an independent review of this support reanalysis.
- Finally, the processing and documentation of each isometric is accomp-lished and reported.
The results of this analysis are tabulated in Table l '.
Specifically there - were three non-conformances.
A non-conformance is defined as a discrepancy that results in pipe being overstressed (in excess of applicable code allowables) or a pipe support ~being unacceptable.due to overstressed mem-bers, overloaded welds, bolts, and others.
These non-conform-ances were ' identified to DLC. for renc Ling to the NRC.
Addi-tionally, other ' discrepancies that required modification to agree with the design intent were issued to DLC.
Prgo 2
. August 14, 1980 i
I.E.Bulletin 79-14 Report Page 2.
1 These.were categorized into three distinct groups.
One group. consisted of supports that required adjustment to comply with. the clearance criteria established.in the= Evalua-tion Program.
These supports did not have sufficient clear-ances in.the restrained directions and resulted in either shimming or adjusting the pipe supports.. Another group con-sisted of a>>tivities that were classified as isaintenance items
'(i.e., tightening loose nuts, reconnecting snubbers, etc.).
Since the plant was in an outage, concurrent maintenance and construction activities were being accomplished in addition to t le as-built' inspection.
The ' third group consisted - of sup-ports 'that were deleted since they were not required -for the qualification of,the piping.
This ' was done to avoid the cost of a complete reanalysis.
In summary there were:
233 modifi-cations identified to comply with the clearance criteria, 20 modifications identified as maintenance items, and 5 modifica-tions identified where supports were deleted.
The following summarizes the non-conformances iden-tified in this effort.
For non-conformance No. 1 (Isometric No.
179, support (H-174 )' on 18"-CC-114-151-Q3), the as-in-stalled condition dif fered from the design condition in that a member angle.was 1/4" in thickne'ss when the design required that.the member angle be 3/8" in thickness.
Upon reinspection by..DLC,. the member was actually as designed and no modifica-tion was required.
Non-conformance No. 2 (Isometric-No. 81, H-203', 12"-RS-3-153B-Q2) was a support where a 1 " x 5" Fig.
No.
200 Hydraulic Shock Suppressor was substituted for a 2 " x 5" Fig. 200 suppressor.
This was undersized for the design loading.
Upon further evaluation of the piping it was determined that the suppressor was not required and therefore the condition acceptable as is without modification.
Non-conformance No. 3 (Isometric No.
2, H-162, 164, 166, 32"-SHP-1,2,3-601) ' involves pipe rupture restraints that are located in the main steam. valve house.
The as-built condition did' not agree with the original design, to resolve this a modification was issued to meet the design ' requirements.
d August 11, 1980 i
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c-13387.02 08/07/80 081 BEAVER VALLEY POWER STATION, UNIT 1 1.16" TABLE 1
.1.20M No. of 1.23 Supports No. of 1.24 Hodified Supports 1.25-For Modified 1.26
' Total Clearance For 1.27
' Srstem Iso.. No. of Criteria Maintenance Nonconformance Deletion 1.28
. P ob. No.
No.
Supports (A)
(B)
IC)
(D)
Hanaer No, M 1,1_ C.A 1.29 leactor Coolant -
1.32 Ie/1201 348 22 5
(A) H-19,H-19A, 5
5 1.34 H-21, H-24,H-0 05 1.35 safety Iniection 1.37 k
sI/15 106 15 3
(<M H-7,H-4,H-2 4
3 1
1.39 (C) H-6 1.40 SI/213 279 23 4
(A) H-5A,H-9A, 4
4 1.41 H-7A,H-179 1.42 114 1
(A) H-124 1
1 1.43 SI/300 193 44 5
(A) H-327,H-306, 5
5 1.44 H-324,H-311,H-308 1.a5 SI/301 223 44 11 (A) H-49A,H-53A, 11 11 1.46 220 H-53,H-50,H-4 8, -
1.47 221 H-57A,H-58A,H-101A, 1.40.
H-52A,H-40,H-101 1.49 SI/301A 222 13 3
(A) H-76,H-79, 3
3 1.50 H-75A 1.51 SI/391 104 11 2
( A) H-17,H-21 2
2 1.52
$1/613 83 9
-1 (A). H-5 1
1 1.53 SI/615 114 40 2
(A) H-34,H-68 2
2 1.54 SI/653B 999 1
(B) H-3 1
1 1.55 SI/653C 108 4
1 2
(A) H-19 3
1 2
1.56 (B) H-1,S H-2 1.57 SI/302 275 11 3
(A) H-266,H-97, 3
3 1.58 H-2-31B-2 2.1
$1/1011 277 19 4
(A).1-18,H-337, 4
4' 2.2 H-335,H-231B 2.3 SI/2112 279 8
3 (A) H-327,H-331, 3
3 2.4 H-330 2.5 SI/2113 115 23 7
(A) H -4, H - 8,H -7,
7 7
2.6 279 H-9,H-5,H-180 2.7-H-11A 2.8 SI/900 (NY) 274 7
1 (A) H-301 1
1, 2.9 SI/3004 192 11 1
(A) PS-1 1
1 2.10
' Onench Sprav 2.13 QS/135 7.'
10 1
(A) H-38 1
1 2.15 4
1 of 5
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08/07/80 081 BEAVER VALLEY POWER STATION, UNIT 1
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TABLE 1 (Cont)
- f No. of Supports No. of Modified Supports
-For Modified I
Total Clearance For
! System Iso.
No. of' Criteria Maintenance Nonconformance Deletion
= Prob, No.
No.
Supports (A)
(B)
(C)
(D)
Hanaer No.
a ff. A
,)_. C D
l 4
,QS/136
-76 8
5
'2.17 I
(A) H-86A,H-87A, 5
f H-9 8,H-9 9,H-8 4 A 2.18 ',
.QS/228 2
1 1
(B) SH-11 2
1 1
2.19.-
(D) An-1 2.20 j
- QS/229 2'
1 1
(B) SH-3 2
1 1
2.21
.J (D) AH-2 2.22 09/135 77 6
3 (A) H-94B,H-95B, 3
3 2.23 H-105 2.24
- QS/211 111 5
1 (A) H-46A 1
1 2.25
,CC/212 113 3
1 (A) H-228 1
1
'e.2 6 6
- Q6/218 113 14 1
(A) H-405 1
1 lt.27
, QS/61'4 111 3
1 (A) H-202 1
1 2.28 QS/617 113 7
1 (A) H-21 2.29
.;Becire. Sprav 2.32
!RS/25 78 8
2 (A) H-85, H-101 2
2 2.34 IRS /27,28 80 20 3
(A) H-22 9,H-10 3, 3
3 2.36 H-1B 2.37
- kS/130 80 2
1 (B) H-236 1
1 2.38
- RS/131
~l9 2
1 (B) H-45 1
1 2.39
'ES/132 78 10 5
(A) H-94,H-95,H-96, 5 5
2.40 H-35,H-216 2.41
'RS/609 112 14 1
1 (B) H-4 4 2
1 1
2.42 (A) H-73 2.43
,RS/611 112 16 1
(A) H-71 1
1 2.44 RS/2728 80 2
1 (A)
H-103,H-1B 3
2 1
2.45' (B) H-229 2.46 1
2RS/24 81 8
3 (A) H-83,H-86, 3
3 2.47 H-85A 2.48
'RS/29 1
(A) H-11A-1 1
1
-2.49 RS/133 81 25 4
(A) H-97,H-96A, 4
4 2.50 H-95A,H-94A 2.51 RS/20 81 4
1 (C) H-203 1
2.52 1
.,maroing volume amtrol 2.55 2.56
)
m/100 277 9
1 (A) H-5 1
1 2.58 m/102 276 9
3 ch) H-25,H-34,H-10 3
3 3.1 1
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c-13387.02-2 08/07/00 081 REAVER VALLEY POWER STATION, UNIT 1 T?3LE 1 (Cont)
No. of Supports No. of Modified Supports For Modified Total Clearance For' Syttem Iso.-No. of Criteria Maintenance Nonconformance Deletion Prob. No.
No.
Suncorts (A)
(B)
(C)
(D) hmmer No.
Total,A,,_3_
C D
CH/3031 265 23 7
(A) PS-2,PS-8,H-37, 7 7
3.3 H-36, H-3 5,H-4 0,H-41 3.4 e
Cu/3035 253 14 3
(A) H-205,H -207, 3
3 3.5 H-208 3.6 CH/911 268 5
2 (A) H-274,H-230A-1' 2 2
a 3.7 Fesidual Heat 3410 Removal 3.11 RHR/14 107 19 2
1 (A) H-22,H-24 3
2 1
3.13 (B) H-110 3.14 RHR/255 75 19 3
(A) H-21,H-25A,AH-1 3 3
3.15 RHR/256-75 11 1
1 (A) H-6A 2
1 1
3.17 (B) H-101 3.18 RHR/260 170 9
2 (A) H-202,H-2 03, 4
4 3,19 H-201,H-204 3.20 RnR/616 110 7
2 (A) H-8,H-9 2
2 3.21 comoonent coolano 3.24 Hater 3.25.
OC/217 284 12 4
ta) H-208,H-212, 4
4 3.27 H-217,H-237 3.28 OC/302 179 23 1
(A) H-181 1
1 3.29 OC/303 164 23 3
(A) H-175,H-4 05A&B 3 3
3.31 04/304 179 33 2
1 (A) H-178,H-182 3
2 1'
3.32, (C) H-174
.3.33 0p,<305 164 30 2
(A) H-172,H-176 2
2 3.34 OC/305 188 12
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1
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(A) H-265 1
1 3.35 OC/307 178 13 1
(A) H-300 1
1 3.36 3 of 5
4 c-13387.02-2 08/07/80 081 HEAVER VALLEY POWER STATION, UNIT 1 TABLE 1 (Cont)
No. of Supports No. of Modified Supports For Modified Total Clearance For Sy2 tem Iso.
No. of Criteria Maintenance Nonconformance Deletion Pron No.'
Mo.
Supports (Al (B)
(C) 101 Hanger No.
"Mtal,,h,_
B C
D River Water 3.39, WR/31 66 2
1 (A) H-169A 1
1 3.41 WR/32 66 2
1 (A) H-171 1
1 3,42 hR/33 66
'2 1
1 (B) H-170A 2
1 1
3.43 (D) M-170 A 3.44 WR/121 69 19 3
3 (A) H-fa9A,H-103, 6
3 3
3.45 H-15 3.46 (B) SH-4B,SH-67,SH-69 3.47 WR/122 69 19 9
(A) H-43,44,45,47, 9.
9 3.48 47A,7 6,77,7 5, H-10 3.49 WR/123 67 17 2
(A) H-21,H-36 2
2 3.50 WR/124 68 17 4
(A) H-25,H-26, 4
4 3.51 H-28,H-30 3.52 WR/125 128 13 2
(A) H-58,H-40 3.53 WR/126 68 13 1
.(A) H-71A 1
1 3.54 WR/127 128 6
2 (A) H-54,H-55 2
2 3.55 WR/128 128 5
2 (A) H-61,H-62 2
2 3.56 WR/152 804 8
5 (A) H-270,H-273, 5
5 3.57 815 H-274, H-276,H-277 3.58 WR/158 801 2
1 (A) Il-290A 1
1 4.1 Ha/159 801 8
8
[. ) H-291,292,293, 8
8 A
4.2 803 295,295A,297,297A 4.3 WR/170 49 19 1
(A) H-36 2
1 1
4.4 (D) Extra Hgr.
4.5 To Be Removed 4.6 WR/172 48 13 4
(A) H-9,H-11,H-12, 4
4 447 H-18 4.8 WR/173 53x 3
2 (A) H-66,H-98 2
2 4.9 WR/174 56 4
1 (A) H-99 1
1 4.10 WR/175 54 7
3 1
(A) H-42,H-94, 4
3 1
4.11 H-232 4.12 (D) Hanger 4.13 Removed 4.14 WR/178 57 13 4
1 (A) H-35,H-26, 5
4 1
4.15 131 H-39,H-23 4.16 i
(B) H-34 4417.
WR/179 50 9
1 (A) H-103 1
1 4.18 WR/180 55 5
4 (A) H-141,H-4 9, 4
4 4.19 H-50,H-140 4.20' 4 of 5
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c-13387.02-2 08/07/80 081 BEAVER VALLEY POWER STATION, UNIT 1 TABLE 1 (Cont)
No. of Supports No. of Modified Supports For Modified Total Clearance' For System Iso.
No. of Criteria Maintenance Nbnconformance Deletion C..
D Prob.' No.
No.
Supports
[g (B)
(Cl (D)
Hanaer No.
Total A
_)_,
WR/181 54 6
1 (A) H-56 1
1 4.21, WR/184 50 15 2.
(A) H-105,H-105A 2
2 4.22 WR/203 63 16 3
(A) H-118,H-152 3
3 4423 64 H-153 4.24 WR/384 613
' 6i 2
(A) H-5,H-52 2
2 e.25 529 4.26 WR/652 826 2
1 (A) H-110A 1
1 4427 WR/2031 63 10 2
(A) H-104,H-111 2
2 4.28 64 4.29 Fuel Pool 4.32 Cooling 4.33 FC/105 71 10 2
(A)
H-1, H -4 2
2 ' -
4.35 FC/105 70 17 3
(A) H-11,H-15,H-20 3
3 ' -
4.37 FC/107 72 8
1 (A) H-28,30,32,34, 9
8 1
4.38 35,36,41,47 4.39 (b) H-45 4440 Feedwater 4.43 FW/204 65 15 6
2 (A)
H-151,H-14 5, 8
6 2
4.45 H-147,H-148, 4.46 H-143,H-128 4.47 (B) H-142,H-130 4.48 FW/2007 65 2
(A) H-133,H-157 2
2 4.49 Miin Steam 4.53-I SHP/3063 2
2 5
~
3 (A) H-162,H-164, 8
5 3
4.55 j
H-165,H-166,H-167 4.56 (C) H-162,H-164, 4.57 H-166 4.58 5.3 TOTAL 264 233 ~16 6
5 5.4 545 5 of 5
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ATTACHMENT NO. 3
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BEAVER VALLEY POWER STATION - UNIT NO.,1 Docket No. 50-334 RESPONSE TO IE BULLETIN 79-14 Schedule for Completion i
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August 14, 1980
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is 5
L '
-e IEB 79-14 SCHEDULE FOR COMPLETION (AS OF AUGUST, 1980)
AUG.
SEP.
OCT.
NOV.
DEC.
JAN.
FEB.
MAR.
Remaining field inspection XXXXXXXXXXXXXX (9/15/80) 5 E
Verification of as-built data for insulated 4
hangers and small bore XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (11/30/80) branch lines lf -
I.
computer analysis Q,
of hand analyzed piping jj "
2 1/2" - 6" XXXXXXXXXXXXXXXXXXXX (10/1/80)
Review of equipment D
w nozzels, penetrations, 8
& base plates for XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (12/1/80)*
g variations from p
design for 2 1/2"
- 6" piping H
Materials Review XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (12/31/80) for pipe & hangers NU me Final report to XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (1/30/81)*
- 5, NRC for IEB 79-14 i
As-built dwg.
~ l preparation I
for piping iso's XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX (3/30/81) and hangers
- This date may be extended for equipment nozzle load verification due to vendor delays in responding.
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