ML19343D314

Advises of Intention to Have HPCS Restart Modified to Provide for Automatic Restart Notwithstanding Continued Existence of Initiation Signal.Mod Will Be Implemented at Next Refueling Outage Following NRC Design Approval

ML19343D314
Person / Time
Site:	Zimmer
Issue date:	05/01/1981
From:	Flynn J CINCINNATI GAS & ELECTRIC CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.K.3.21, TASK-TM NUDOCS 8105040250
Download: ML19343D314 (1)

Text

be TIIE CINCINNATI GAS & ELECTRIC COM PANY a rW Z_ _ .-_, _

ClNCINN AT1. OHIO 45201 May 1, 1981 Docket No. 50-358 rahg2.L1Qfj Q 7;uf[u[, T i"'

Mr. Harold Denton, Director p J B Office on Nuclear-Reactor Regulation U.S. Nuclear Regulatory Commission 7

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Washington, D.C. 20555 7., v.s. egggg^*"

RE: WM. H. Zimmer Nuclear Power Station - Q Unit 1 - SSER Item b* ,--I T,j.,[Th NUREG-0737 II K.3.21

Restart of Core Spray Systems

Dear Mr. Denton:

This letter will document CG&E's intention to have the HPCS restart logic modified to provide for automatic restart not with standing the continuing existence of an initiation signal (ie high drywell pressure).

This modification will be consistent with that discussed in Section L.34.13 of the LaSalle FSAR as a discretionary modification proposed by the BWR Owners Group. The modification will be implemented on the schedule defined in NUREG-0737; ie, at the next refueling outage following staff approval of the design, unless this outage is' scheduled within 6 months of the approval date. Zimmers NUREG-0737 item II K.3.21 will be modified to reflect this comitment and be fonnally documented as Appendix L in the May revision to the FSAR.

Very truly yours, The Cincinnati Gas & Electric Company M#N a vi , g, James D. Flynn

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