ML17244A490

Responds to Request for Addl Info Re 790214 Fire Protection Ser.Discusses Piping & Duct Penetrations,Const Joint, Detector Testing & Electrical Cable Insulation

ML17244A490
Person / Time
Site:	Ginna
Issue date:	04/30/1979
From:	White L ROCHESTER GAS & ELECTRIC CORP.
To:	Ziemann D Office of Nuclear Reactor Regulation
References
NUDOCS 7905070486
Download: ML17244A490 (7)

Text

RESUL'RY INFORMATION DISTRIBUTE SYSTEM (RIDS)

ACCESSION NBR:7905070986 DOC ~ DATEo 79/09/30 NOTARIZED'O DOCKET ¹ FACIL:50 BYNAME 204 ROBERT EMMET GINNA NUCLEA'R PLANTS UNIT 1 t ROCHESTER G 05000204 AUTH AUTHOR AFFILIATION NHITEFL ~ D>> ROCHESTER GAS'8 ELECTRIC CORPS REC IP ~ NAME RECIPIENT AFFILIATION

'IEMANNP D ~ OPERATING REACTORS BRANCH 2 SUBJECT; RESPONDS TO REQUEST FOR ADDL INFO IN 790210 SER RE PIPING 8 DUCT PENETRATIONSPCONST'OINTS DETECTOR 'TESTINGS ELECTRICAL CABLE INSULATION~

DISTRIBUTION CODE: A0060 COPIES RECEIVED:LTR i ENCL l SIZE:

TITLE: FIRE PROTECTION INFORMATION (AFTER ISSUANCE OF OP,LIC ~ )

NOTES:Z~: ~; RluSO> ~ ~. 8OCn~ySiE ~0 )lJ" )rl )M i

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL ACTION: 05 BC C>4H M4 INTERNAL: 0 02 NRC PDR 09 E 12 AUXIL SYS, BR 1

2 2

1 2

2 li TA/EDO 16 PLANT SYS BR 1

5 1

1 5

19 WAMBACH 1 1 20 MURANAKAtR' 1 1 21 AD SYS/PROJ 1 1 OELD 1 0 EXTERNAL: 03 LPDR 1 1 oe NSIC 1 22 ACRS 16 16 1'ly 8

TOTAL NUMBER OF COPIES REQUIRED'TTR 38 ENCL 37

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ZiiVu~EN'///////////I ROCHESTER GAS AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER, N.Y. 14649 LEON D. WHITE. JR. TELEPHONE VICE PRESIDENT AREA CODE TIS 546-2700 April 30, 1979 Director of Nuclear Reactor Regulation Attention: Mr. D. Ziemann, Chief Operating Reactors Branch 42 Division of Operating Reactors U.S. Nuclear Regulatory Commission Washington, DC 20555 Re: Fire Protection at R.E. Ginna Nuclear Power Plant Docket No. 50-244

Dear Mr. Ziemann:

Additional information was requested for certain items in the Safety Evaluation Report dated February 14, 1979. The items scheduled for response in April 1979 are contained herein.

Item 3.1.24 Piping and Duct 'Penetrations:

Piping and duct penetration seals of fire barriers will be upgraded to fire resistance ratings commensurate with the hazards on both sides of the barriers. ASTM E-119 fire test reports for comparable penetrations will be on file to verify seal adequacy.

Item 3.1.25 Construction Joints:

The'onstruction joints between the containment and the surrounding buildings will be modified to provide fire resistance commensurate with the hazards in the area.

The existing filler material will be covered on both sides with a flame retardant coating or replaced with silicone foam or silicone rubber strips.

Item 3.1.43 Detector Testing:

After the design of fire detection systems utilizing the NFPA 72 series as a guide, the following will be done:

.Portable smoke detectors will be installed in locations which are to be tested for adequacy.

Smoke or combustion products will be released by a suitable generator at, the locations of postulated fires.

The smoke generator will not constitute a fire hazard in itself.

iBOSOP~yg(

V l4 ll'ly I

ROCHESTER GAS 4ND ELECT CORP. SHEET NO.

DATE April 30, 1979 To Mr. D. Ziemann, Chief The adequacy of the detector locations will be determined utilizing an acceptable time differential between smoke generation and detection.

If relocation or addition of detectors is found necessary, the adequacy of the new locations will be verified by test.

Item 3.2.4 Electrical Cable Insulation:

The attached table lists the cable insulation types and quantities used in the Ginna Nuclear Plant. The combus-tion products for these insulation materials are listed in generic test reports published by manufacturers and test laboratories. After a review of these materials it is the Rochester Gas -and Electric Corporation position that none of the insulation produces combustion products of an unusual or significantly hazardous nature.

Very truly yours,

~

I D. Whit

~ ~

~

, Jr.~

k TABLE CABLE INSULATION MEETS VERTICAL FLAME TEST QUANTITY PER IEEE 383 CABLE DESCRIPTION CLASS (FEET) INSULATION APPLICATION / UL 44 Power 4kv 7,235 HT Kerite Throughout Plant Yes/

Power 600V 35,330 HT Kerite Non Safeguards Circuits Yes/

Power 600V 23,620 HT Kerite Safeguards Circuits Outside Containment Yes/

Power 600V 2,320 HT Kerite Safeguards Circuits Inside Containment Power 600V 113,800 HT Kerite Non Safeguards Circuits Yes/

Control 600V 43,000 FR Kerite Safeguards Circuits Inside Containment Yes/

Control 600V 586,000 PVC (General Non Safeguards Circuits Inside Containment- No/Yes Cable) All Circuits Outside Containment Control 600V 22,500 TH@ (PVC Type) Lighting Circuit No/Yes Thermocouple 600V 69,000 PVC Incore Instrumentation No/Yes Thermocouple 600V 30,000 Silicone Incore Instrumentation Yes/

Rubber Triaxial 18,000 PVC Throughout Plant No/Yes Instrument 600V 35,000 Silicone Electric Control Inside Containment Yes/

Rubber Instrument 600V 250,000 PVC Electric Control Outside Containment No/No Instrument 600V 55,000 Silicone Computer S Inst. Cables Inside Containment Yes/

Rubber Instrument 600V 140,000 PVC Computer 6 Inst. Outside Containment No/No Control 600V 500 Vulkene Status Iights Yes Power 600V 2,000 Silicone Press. Heaters Yes/

Rubber