ML20128D173

Summary of 921027 Meeting W/Util in Rockville,Md to Discuss Fire Barrier Acceptance Criteria

ML20128D173
Person / Time
Site:	Comanche Peak
Issue date:	12/02/1992
From:	Brian Holian Office of Nuclear Reactor Regulation
To:	Office of Nuclear Reactor Regulation
References
NUDOCS 9212070168
Download: ML20128D173 (6)

Text

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. t December 2.1992 Docket Nos. 50-445 and 50-446 1

t LICENSEE: Texas Utilities Electric Company (TV Electric)

FACILITY: Comanche Peak Steam Electric Station, Units 1 and 2 (CPSES)

SUMMARY

Of MEETING Oil CPSES THERMO-LAG TESTING PROGRAM A meeting was held at NRC headquarters on October 27, 1992 between the NRC and Texas Utilities to discuss fire barrier acceptance criteria. TV Electric had proposed their acceptance methodology in a letter dated September 24, 1992.

The purpose of this meeting, requested by TV Electric, was for the utility to supplement their acceptance criteria. Specifically TV Electric proposed to upgrade temperature monitoring from the cable to the cable raceway, and provided a more detailed description of their proposed engineering evaluation should the testing result in the utility having to prove cable functionality.

The NRC staff responded to the TV Electric proposed criteria by letter dated October 29, 1992. In that letter the staff stated that final review of TV Electric's fire barrier acceptance criteria will be documented in a future i safety evaluation. i Original Signeri By Brian E. Hcit.m. 7eator Project Manager Project D're.tuW IV d Division o' b ctor Pro;ects Ill/IV/V Office of Nucleat "toutor Regulation *

Enclosures:

1. Attendance List

2. Meeting llandout t

cc w/ enclosures See next page Ql_STRIBUT10N:

Docket file EPeyton THurley/FMiraglia NRC PDR BHolian JPartlow -

Local PDR OGC RSchaaf PDIV-2 RF EJordan NRC Participants JMitchell, ED0 i PDIV-2 PF ACRS(10)

JRoe LYandell, RGN-IV MVirgilio 0FFICE PDIV-2/LA PDIV-2/PM.a PDIV-2/D #

mt dNyI$n BHolian:nY SBlack ,

our A /t /92 45 /)/92 it/4/92 / / / /

Document Name: TU-1 LAG. MIG c:\wp\ cpl &2

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9212070168 9252O2 I

{DR ADOCK 05000445 PDR h

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cc w/ enclosure:

Senior Resident inspector Jack R. Newman, Esq.

U.S. Nuclear Regulatory Commission Newman & Holtzinger P. O. Box 1029 1615 L Street, N.W.

Granbury, Texas 76048 Suite 1000 Washington, D. C. 20036 Regional Administrator, Region IV U.S. Nuc1 car Regulatory Commission Chief, Texas Bureau of Radiation Control 611 Ryan Plaza Drive, Suite 1000 Texas Department of Health Arlington, Texas 76011 1100 West 49th Street Austin, Texas 78756 Mrs. Juanita Ellis, President

~

Citizens Association for Sound Energy Honorable Dale McPherson 1426 South Polk County Judge Dallas, Texas 75224 P. O. Box 851 Glen Rose Texas 76043 Owen L. Thero, President Quality Technology Company Mr. William J. Cahill, Jr.

Lakeview Mobile Home Park, Lot 35 Group Vice President 4793 East Loop 820 South TV Electric Fort Worth, Texas 76119 400 North Olive Street, L.B. 81 Dallas, Texas 75201 Mr. Roger D. Walker, Manager Regulatory Affairs for Nuclear Engineering Organization Texas Utilities :lectric Company 400 North Olive Street, L.B. 81 Dallas, Texas 75201

-Texas Utilities Electric Company c/o Bethesda Licensing 3 Metro Center, Suite 610 Bethesda, Maryland 20B14 William A. Burchette, Esq.

Counsel for Tex-La Electric Cooperative of Texas Jorden, Schulte, & Burchette 1025 Thomas Jefferson Street, N.W.

Washington, D.C. 20007 GDS Associates, Inc.

Suite 720 1850 Parkway Place Marietta, Georgia 30067-8237

Enclosure 1 NEETiliG ATTENDEES October 27, 1992 TEXAS UTILITIES NiD NRC 10 ELECTRE Roger D. Walker C.L. Terry Dale Walling NUMARC Diff Bradley McGRAW-HILL David Stellfox MILLER & CHEVALIER ,

John Stephens IllM Paul Gunter 115 James J. Raleigh IRC Jack Roe Bill Russell Ashok Thadani Conrad McCracken Suzanne Black Steven West Gary H. Holahan Carl H. Berlinger Paul Gill Patrick Madden Ronaldo V. Jenkins Jocelyn Mitchell Brian Holian e , - - - - - -

Emicstrrp 2-4 TEST SEOUENCE .

CONSTRUCT SAMPLE MEGGER TEST .

' FIRE TEST-MEASURE CONT!NUITY ,

MEASbRE TEMPERATURE PO5T FIRE HOSE STREAu

' WITH FOG NOZZLE POST FIRE MEGGER TEST t iMMEO I A T ELY AFTER FOG ACCEPTANCE CRITERIA NOZ71 E TEST)

FIRE BARRIER It4 SPEC i ION MEGGER CABLE VISUAL INSPECTION RESULTS V

. CONOUlT/ CABLE TRAY TEMPERATURE NO  % CONT ifJUI T Y NO m ENGINEERING NO m RETEST

< AMB+250*F AVG MAINTAINED A" EVALUATION REQUIRED

AMB+ 325* F MAX l ,

A YES- YES ACCEPT l o

, Y lI Y Fi A R V'S L NO m CABLE NO NRC NO SAT INSPECTION CONCURRENCE SAT YES YES y ACCEPT TEST IS m SATISTACTORY y - - ~ - ,- w w ,+ . , , . > -m, ,,

p

j .

u

• Test Seepnce

. Build Sample .

Megger FueTest Temperature

- Measure AC"Mc Sat Continuity Conduit /CableTray Temperature < Amb + 250 F avg

< Amb + 325 F peak Fog NozzelTest Hot Megger Fire BamerInwikwi Potential Deviation FunctionalityTests

• y Visual Cable Inspection

• Post Fire 3, Visual Cable Inspection Sat

• If Required = Fire BanierInsreikwi No Burn Through Pbtential Deviation o

Test Sat Cable T-.skatality _

b 'I M N Verircation -

a

. Sat

* ~. . ..._

CABLE FUNCTIONALITY TESTING TESTSEQUENCE TU ELECTRIC PROPOSAL JUSTIFICATION DURING FIRE CONTINUITYTEST AT 12VDC -

UL 1724 RECOMMENDS THAT LOW VOLTAGE TEST SHOULD RE USED ON CIRCUIT DURING FIRE TESTING LABORATORY PERSONNEL SAFETY REQUIREMENTS LOGISTICS OF MECCERING ALL CONDUCTOltS DURING THE ONE HOUR FIRE TEST RESTRICTS INTERMITTENT TESTING FUNCTIONALITY OF CABLE AT ELEVATED TEMPERATURE MAY BE CONFIRMED BY LCCA TEST RESULTS PROVIDED CABLE JACKET TEMPER ATURES DID NOT EXCEED LOCA QUALIFICATION TEMPERATURES AFTER HOST HOT MEGGER TEST -

ACCEPTANCE CRITERIA BASED ON MOST LIMITING -

STREAM TEST INSTALLATION (5 M )

INSTRUMENTATION CABLE -

ACCEPTANCE CRITERIA FOR CONTROL / LOW 599VDC VOLTAGE CABLE BASED ON DC EQUIVALENTTEST YOLTAGES OF RATED AC VOLTAGE (1500VDC)

CONTROL / LOW VOLTAGE CABLE AT 1509VDC

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