ML17285A234: Difference between revisions

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| number = ML17285A234
| number = ML17285A234
| issue date = 01/06/1989
| issue date = 01/06/1989
| title = Discusses Issues Highlighted at BWR/6 Alternate Ac Task Force Meeting on 881115,including Need for Capability of Div Iii Sys to Maintain Plant in Safe Shutdown Condition (Hot Shutdown) for Min of 4 H
| title = Discusses Issues Highlighted at BWR/6 Alternate Ac Task Force Meeting on 881115,including Need for Capability of Div III Sys to Maintain Plant in Safe Shutdown Condition (Hot Shutdown) for Min of 4 H
| author name = PARETO V
| author name = PARETO V
| author affiliation = DEVONRUE, LTD.
| author affiliation = DEVONRUE, LTD.

Revision as of 00:15, 20 April 2019

Discusses Issues Highlighted at BWR/6 Alternate Ac Task Force Meeting on 881115,including Need for Capability of Div III Sys to Maintain Plant in Safe Shutdown Condition (Hot Shutdown) for Min of 4 H
ML17285A234
Person / Time
Site: Perry, Grand Gulf, Columbia, River Bend, Clinton, 05000000
Issue date: 01/06/1989
From: PARETO V
DEVONRUE, LTD.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM), Office of Nuclear Reactor Regulation
References
DLNRC-8901-01-V, DLNRC-8901-1-V, TAC-40577, NUDOCS 8902100313
Download: ML17285A234 (5)


Text

pc gp~~y~D]~BUTJ 0 7 DE}d 0%STRgl0 7 SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)DOCKET g 05000000 05000397 05000416 05000440 05000458 05000461R ACCESSION NBR:8902100313 DOC.DATE: 89/01/06 NOTARIZED-NO FACIL:50-000 Generic Docket 50-397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 50-416 Grand Gulf Nuclear Station, Unit 1, Mississippi Power 50-440 Perry Nuclear Power Plant, Unit 1, Cleveland Electric 50-458 River'end Station, Unit.1, Gulf States Utilities Co.50-461 Clinton Power Station, Unit 1, Illinois Power Co.AUTH.NAME AUTHOR AFFILIATION, PARETO,V.Devonrue,.

Ltd.I RECIP.NAME RECIPIENT AFFILIATION Office of Nuclear Reactor Regulation, Director (Post 870411'UBJECT:

Summarizes 881115 meeting re BWR/6 alternate ac task force.DISTRIBUTION CODE ZZZZD COPIES RECEIVED LTR L ENCL Z SIZE'ITLE:

SPECIAL DISTRIBUTION

-PDR AVAILABLE NOTES:Application for permit renewal filed.05000440~05000461 RECIPIENT ID CODE/NAME INTERNAL: NUDOCS-ABSTRACT NOTES COPIES LTTR ENCL RECIPIENT ID CODE/NAME COPIES LTTR ENCL g+p l I I h D NOZE'ZO ALL"RIDS" RECIPZERIS:

PLEASE HELP US K)RECCE HASTE!CGHI'ACZ%HE DOCUMEKZ CXNIHDL DESK, ROOM Pl-37 (EXT.20079)KO ZXZHZNATE YOUR NME PRM DISTRIBUTION LISTS H)R DOCUMENIS YOU DOlN~T NEEDt TOTAL NUMBER OF COPIES REQUIRED: LTTR ENCL P E l f DE<VONRUE 180 LINCOLN STREET BOSTON, MASSACHUSETTS 02111 (617)426-4550 TELEX: 96-1417 TX NETWORK Document Control Desk Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, D.C.20555 t)go-3'~'7 Lf I g~O p'AJ<s': LL(6 (January 6, 1989 DLNRC 8901-01/VEP TELECOPIER:

(617)728-4186 Re: BWR/6 Alternate AC Task Force Meeting Discussion We appreciate the opportunity of meeting with the Staff on November 15, 1988.Your comments and suggestions are very helpful for us to develop a response to the station blackout rule that meets your expectations and addresses your concerns.This allows us to better focus our efforts and it should substantially facilitate your review process.To demonstrate the acceptability of HPCS as an Alternate AC power source several issues must be addressed.

However, we are pleased with your favorable initial impression of our assessment.

The following issues were highlighted at our meeting: The Division III system must be capable of maintaining the plant in a safe condition (hot shutdown)for a minimum of four hours.Qh,o I f4RQ Iooa.,.iM Q ,OO'9 lfl-'000'(o~fHU:(90 GA 0CC'N 0 rr.(OQ.Q.,'tation batteries must be capable of maintaining power to any required instrumentation that is not part of Division III.That is, any instrumentation necessary for coping with a station blackout as discussed in emergency operating procedures needs to be operational.

Sufficient lighting must be provided to paths that must be crossed by plant personnel in order to cope with and recover from a station blackout.Automatic operation of HPCS system is acceptable despite the regulatory guide requirement for no auto-loading because a separate bus is being energized.

Thus, automatic loading of the HPCS will not affect the operation of Divisions I and II.S b<<p~z7r/i/orr1/g.gaV(2/Z'ZZZ p/pr>tp~~Pi~I jj~~.QA QM I V'~I

,,-~DL6PK 8901-01/VEP dated Janus 1989 V The plant's ability to recover from a four hour station blackout should be addressed.

Specifically, procedures should be available to guide the operator on how to restore power to Divisions I and II.This evaluation should consider battery capacity.We are currently working on the develop'ment of a modified generic response format to the Station Blackout Rule utilizing HPCS as an Alternate AC power source.Following completion of this response format, we would again like to meet with the Staff to review this document.This modified generic response format is expected to be completed by January 20, 1988.Please contact us should any other suggestions come up.We will appreciate any additional guidance you can provide.Once again thank you for your attention to this important matter.Sincerely, Vittorio Pareto, Ph.D.Consiiltant to HPCS AAC Task Force P.Tam T.G.Colburn (NRR, PD 33)J.Lazeunick (NRR/DEST/SELB)

J.H.Raval (NRR/DEST/SPLB)

P.Gill (NRR/DEST/SELB)

J.Knight (NRR/DEST/SELB)

Jim C.Allen, Clinton Power Station M.Eugene Lazarowitz, Clinton Power Station Eugene Willman, Perry Nuclear Power Plant Alan Hosier, Washington Public Power Supply System Kenneth Hughey, System Energy Resources Marvin Morris, River Bend Station