ML18283B043
| ML18283B043 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 06/16/1976 |
| From: | Gilleland J Tennessee Valley Authority |
| To: | Rusche B Office of Nuclear Reactor Regulation |
| References | |
| Download: ML18283B043 (7) | |
Text
NRC FORM 195 I2.78)
U.S. NUCLL'AR REGULATORY C ISSION NRC DISTRIBUTION Fon PART 50 DOCKET MATERIAL DOCKET NUMBER 50-259~
FILE NUMBER TP>>
Mr. B,C. Rusche FROM: TVA Chattanooga, Tenn 37401 J E Gilleland DATE OF DOCUMENT 6-16-76 DATE RECEIVED 6-18-76 I7IL ET TE R 5toRIGINAL QCOP Y 0 NOTOR IZ E 0 IRUNC LASS I PIE 0 PROP INPUT FORM NUMBER OF COPIES RECEIVED 1 signed DEscRIPTIDN Ltr trans the following:
ENGLosURE /5th Revison to "Plan for Evalaution, Repair & Return to Service of Browns Ferry 1
& 2 Plant(March 22, 1975 Fire)" ~ ~ ~ ~
'P 444 R>>
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'(45 cys encl rec'd)
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. PLANT NAME:
Browns Ferry 1 & 2 Mttlatt/Lip@
os SAFETY ASSIGNED AD:
BRANCH CHIEF:
PROJECT MANAGER:
a LICo ASST FOR ACTION/INFORMATION ASSX NED AD P O.a A'
DHL 6 RED FILE NRC PDR'&E OELD GOSSXCK & STAFF MIPC CASE HANAUER INTERNAL0 SYSTEMS SAFETY HEINEMAN'CHROEDER ENGINEERING
'ACCARRY KNIGHT SI1WEIL PAMLICKI ISTRIBUTION BENAROYA IPPOLITO KIRK'OD OPE'RATING REACTORS SITE SA ENVIRO NA S
PROJECT MANA EMEN BOYD P
COLLINS HOUSTON PETERSON MELTZ HELTEMES SKOVHOLT LPDR:
Athens TIC:
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RFACTOR SAFE'IIY ROSS NOVAK ROSZTOCZY CHECK AT& I SALTZMAN RUTBERG EXTERNALDISTRIBUTION NAT LAB:
REG VIE LA PDR CONSULTANTS OPERAT N
EISENH SHAD BAER BUTLER GRIMES BROOK11AVEN N ULRIKSON ORNL CONTROI NUMBER 6198 ACRS CYS
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Q ANOOGA, TENNESSEE 3740'I rt yQ gp Mr, Benard CD Rusche, Director Office of Nuclear Reactor Regulation U.S; Nuclear Regulatory Commission Washington, DC 20555 sb JOIg8>9>
't -t &QQe COANI CV4%~olr
Dear Mr,
Rusche:
In the Matter of the
)
Docket Nos ~ 50-259,
~( g +Cg I Alai~
Tennessee Valley Authority
)
Enclosed are 45 of the 45th revision to a docume'nt previousl submitted on 'April 13, 1975, entitled "Plan for Evaluation, Repair, and Return to Service of Browns Ferry Units 1 and 2 (March 22, 1975, Fire) ~"'he revision consists of the following:
Material:Revised.
Evaluation Plan
' 'Par't
'rogram, for'ampling, Analysis, and Cleanup of Residue on Affected Structures,
- Systems, and Components.
V This revision"includes additional information regarding the frequency at which the condition of electrical cables that have been'oated with flame retardant material (Flamemast:ic 71A) will be inspected.
Instructions for entering the 45th revision are also included.
Very truly yours,"
J.
E, Gilleland Assistant Manager of Power Enclosures CC:
See page 2-An Equal Opportunity Employer
Mr.. Benard C. Rusche JUIII 1.6 1976 CC (E'nclosures):
Mr', Frank Long Regional Office U.S Nuclear Regulatory Commission 230'eachtree Street,.NN,, 'Suite 818 Atlanta, Georgia 30303 Mr. Norman C. Moseley, Director (3)'egional Office U~S ~ Nuclear Regulatory Commission 230'eachtree
- Street, HM., Suite 818 Atlanta, Georgia 30303 Mrs-C+
H+ Murphy Regional Office U.S; Nuclear Regulatory, Commission 230'eachtree
- Street, NW, Suite818 Atlanta, Georgia 30303
Qgulatory Docket fight Page 15 Part V Section 3 Page 3.5 Recovery Plan BFNP Revised. 6/9/76 Particular attention should be given to cleaning uninsulated terminals.
,6.9.4.1 The transformer shall be reassembled and. each winding given a meggar test with the other windings grounded.
, 6.9.4.2 If the transformer is of the voltage-regulating type with moving parts and electrical contacts, it shall be cleaned, and. treated, as specified in applicable paragraphs of 6.2 (motors) and 6.3 (switchboards).
It shall be reassembled, relubricated, and retested in accordance with applicable manufacturer's instructions.
6.9.5 The transformers shall be reinstalled and returned to normal status.
6.10 Reinspection 6.10.1 All electrical equipment, except totally enclosed. motors and.
other sealed. electrical equipment, shall be given a visual inspection, approximate3y six months after the equipment has been cleaned.
Particular attention should. be given to the presence of corrosion'products.
If any products are noted.,
the equipment shall be recleaned.
6.10.2 6.10.3 A11 cable trays in the units 1 and 2 reactor building shall be
.inspected annually for 5 years for indications of degradation of the cable tray system. If degraded. trays or supports are
'found., they should be replaced as soon as possib3.e.
No wholesale degradation and. replacement of cable tray systems
'are expected to occur.
.In response to an ACRS concern that the Flamemastic cocooning of electrical cables changes the working environment, at the first unit 1 refueling outage, at the second. unit 1 refueling
- outage, and thereafter at approximately every 3 years during the nearest unit
- 3. refueling outage, a nondivisional low-voltage power cable tray on unit 1 (floor elevation 593) shall have a portion of the Flamemastic cocoon opened.,
the cables inspected, and a sample of the cable jacketing removed..
The
'acket sample shall be given an ASTM D412 physical and dimensional test for elongation and tensile strength.
The test values shall be compared. to previously obtained values to detexmine the aging of the cable materials.
Repairs to the cable jacket shall be made with a cable jacket repair kit, and the open area shall be recoated with Flamemastic.
(see attachments 5 and 5a, memorandums dated April 27, 3.976, and June 9, 3.976, from J.
R. Calhoun to H. J, Green, subject; "Browns Ferry Nuclear Plant Units 1 and. 2 - Electrical Cable Surveillance Program" ).
E le~
PLAN FOR EVALUATION, REPAIR~
AND RETURN TO SERVICE OF BROWNS FERRY UNITS 1 AND 2 (MARCH 22, 1975, FIRE)
Filing instructions for June 16, 1976, Revision.
Remove Zesett Part V, section B", page 15, Revised 4/30'/76, Part V, section B, page 15, Revised 6/9/76