ML20135B322

Forwards Request for Addl Info to Address ACRS 841218 Concern Re Control Room Habitability in Event of Loss of Both Emergency Ventilation Trains.Response Requested by 850930

ML20135B322
Person / Time
Site:	Hope Creek
Issue date:	09/04/1985
From:	Butler W Office of Nuclear Reactor Regulation
To:	Mittl R Public Service Enterprise Group
References
NUDOCS 8509100522
Download: ML20135B322 (6)

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k-Decket No. 50-354 SEP.i 1985 Mr. R. L. Mitti, General Manager Nuclear Assurance and Regulation Public Service Electric & Gas Cercpany P.O. Box 570, T22A' Newark, New Jersey 07101

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - LOSS OF ALL CONTROL ROOM VENTILATION

$ By letter dated December 18, 1985, (J. Ebersole, ACRS to N. Palladino, NRC), the ACRS encouraged the hRC staff to give additional attention to the habitability of the control room in the event of a loss of both emergency ventilation trains.

The ACRS noted that the heat load and rate of temperature rise in the control room under a range of various conditions should be considered.

In order to provide an accurate response to the ACRS' concern, we find that additional infonnation is needed concerning the control room and its ventilation systems. Accordingly, the enclosure to this letter is a request for additional information (RAI) concerning this issue.

Please provide your response to the enclosed RAI by Septen.ber 30, 1985.

Sincerely, j Eni:losure:

As stated Walter R. Butler, Chief

, cc: See next page Licensing Branch No. 2

> Division of Licensing

> DISTRIBUTION Docket: File

• fiRC PDR Local PDR PRC System NSIC LB#2 Reading EHylton DWagner JPartlow BGrines EJordan OELD,Dewey ACRS(16) JRidgely JHayes LBfd M LB#2/DL/B

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l 8509100522 050904 l PDR ADOCK 05000354 l F~

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Dccket Nc. 50-354 SEP / 1935 i

Mr. R. L. Mitti, General Manager Nuclesr Assurance and Regulation Public Service Electric & Gas Cer.:pany P.O. Box 570, T22A Newark, New Jersey 07101

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - LOSS OF ALL CONTROL ROOM VENTILATIOh By letter d6ted Decernber 18,.1985, (J. Eberscle, ACRS to N. Palladino, NRC), the ACRS encouraged the hRC staff to give additional attention to the habitability of the control room ir, the eur,t of a loss of both emergency vertilttici tr6 ins.

The ACRS noted that the heat load and rate of -temperature rise in the coritrcl roorn under a range of uricus conditions should be considercd.

In order to provide an accurate response to the ACRS' concern, we find that acdition61 information is needed concerning the control room and its vertil6 tion systers. Accordingly, the enclosure to this letter is a request for additional information (PAI) concerning this issue.

Please providt ycur respense to the enclosed RAI by Septen.ber 30, 1985.

Sincerely,

Enclosure:

4 As stated Walter R. Butler, Chief cc: See next page Licensing Branch No. 2 bivision of Licensing DISTRIBUTION Docket File NRC PDR Local PDR PRC System NSIC LB#2 Reading EHylton

.DWagner JPartlow CGrines EJordan OELD,Dewey ACRS(16) JRidgely JHayes L9W) M LB#2/DL/B DWagner:mk kButler ,O 9/ps5 W D y/of/85

1. o UNITED STATES 8 i NUCLEAR REGULATORY COMMISSION 5*  : E WASHINGTON, D. C. 20555

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%, . . . . . #, La 3p g Dcoket ho. 50-354 Mr. R. L. Mittl, General Manacer Nuclear Assurance and Regulation Public Service Electric & Gas Company P.O. Box 570, T22A Newark, hew Jersey 07101 Dear Mr. Mitti.

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION - LOSS OF ALL CONTROL ROOM VENTILATION By letter dated December 18,1985, (J. Ebersole, ACRS to N. Palladino, hRC), the ACRS encouraged the NRC staff to give additional attention to the habitability of the control room in the event of a loss of both emergency ventilation trains.

The ACRS ncted that the heat load and rate of ter.;perature rise in the control room under a range of varicus conditions should be considertd.

In order to provide en accurate response to the ACRS' concern, we find that accitional information is needed concerning the control room and its vcntilation systems. Accordingly, the enclosure to this letter is a request for additional information (RAI) concerning this issue.

Please provide your response to the enclosed RAI by Septeniber 30, 1985.

Sincerely, Walter R. Butler, Chief Licensing Branch No. 2 Division of Licensing

Enclosure:

As stated i

cc: See neit page 4

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. ~9 hr. R. L. liittl FLLlic fervice Electric & Gas Co. Ho n Cieck Generating Station cc:

Grccct:, Firer Susan C. Remis Richarc l'ubbard Division of Public u.it.rtst Advncacy

, Dale Bridenbaugh New Jersey Stcte Lepartment of ifiB Technical Associates tht. PLLlic Advocate M23 Eccilten Avenue, Suite K Richard J. Hughes Justice Comples San Jose, Californic 95125 CN-850 Trenton, Neu Jcrsey . 08625 Troy B. Conner, Jr. Esc;uirt Office of Legal Counsel Conner & L'etterhahn Department of fiatural fksources 1747 Pennsylvania Avenue N.E. anc Environmental Contrcl l  !!csbit.9ttn, D.C. 20006 89 Kings Highway P.O. Box 1401 Dover, Delaware 19903 i

Richard Fryling, Jr., Esquire inr. L. U. Currowes, Project Ensire:

Asscciate General Solicitor Cechtcl Pever Corporation Ft.blic Service Electric & Gas tci.4ct.) 50 teale Street P. C'. Ecx 570 TSE P. O. Box 3965 Newark, New Jerser 07101 San Francisco, Calitcio u !lC19 4

Mr. J. M. Ashley Fesitcrt Inspector- Senior Licensing Enginecr U.S.N.R.C. c/o Public Service Liectric & Gas Co.

P. O. Box 241 Bethesda Offict Center, Suit 560 Hancccks brioge, New Jersey 08036 4520 East-West Highway bettesdc,licryland 20814 Richard F. Engel

Deputy Attcrrey General fir. A. E. Giardir.o Divisicn cf Lau i:anager - Quality Assurnce ELC Environmental Protectici. Leccion Public Service Electric L fu (c.

Richarc v. hLstes Justice Complex P. 0.~ Boy A CH-112P Hancocks Cric5c, New Jersey 08038 Trer.tci:, Lev Jersey 08625 4

hr. Robert J. Touhey, f;r. Anthony J. Pietrofitta i Acting Directcr beneral lianager DiiREC - Divisicr. of Power Production Engineering Envircrr.cntal Control Atlantic Electric 89 Kings Highway 1199 Black horse Pike P.-0. Box 1401 Pleasantville,14ew Jersey 08232 1 Dover, Delauore 15503

Regional Administrator, F.cgion I fir. R. S. Salvesen U. S. huclear Regulatory Comission General ficneger-Hope Creek Operation 631 Pcrk Avenue Public Service Electric & Gas Co. King cf Prussia, Pennsylvania- 19406 i P.O. Box-A Hancocks Bridst, f.'cv Jersey 08038 a

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Public Service Electric & Gas Co. -

2- Hope Creek Generating Station l

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Mr. B. A. Preston  !

Project Licensing Manager Public Service Electric & Gas Co.

P. O. Box 570 T22A Newark, New Jersey 07101 Ms. Rebecca Green New Jersey Bureau of Radiation Protection 380 Scotch Road Trenton, New Jersey 08628 i

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l REQUEST FOR ADDITIONAL INFORMATION LOSS OF ALL CONTROL ROOM HVAC HOPE CREEK GENERATING STATION  ;

In the ACRS's December 18, 1984 letter to Chairman Palladino, the ACRS encouraged the NRC staff to give additional attention to the control room habitability requirements and to evaluate the potential loss of both' trains of the emergency ventilation system and the heat load and rate'of. temperature rise in the control room under a range of HVAC conditions. So that we may be responsive to the ACRSg please provide the res'ults of an analysis or test of the effects of the loss of all ventilation and cooling to the control and the electrical equipment rooms. under various HVAC operating conditions. Your evaluation should include consideration of the rate of temperature rise in the general areas"of the control and electrical equipment rooms and in various

' cabinets._ At the McGuire plant, instruments failed or malfunctioned at -lower temperatures than expected. Therefore, such a test should

. enable the' applicant to identify hot spots, to correlate hot spot ,

temperatures with~ general area temperatures, and to identify the locations where the monitoring of the control and electrical equipment room temperatures for Technical Specification purposes should be made.

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