ML20002D165

Responds to NRC 801209 Generic SER Re BWR Scram Discharge Sys.Sys Mods Will Be Completed Prior to Completion of Next Refueling Outage.Util Will Review Any Scram Which Occurs During Cycle & Verify Correct Sys Function

ML20002D165
Person / Time
Site:	Brunswick
Issue date:	01/13/1981
From:	Utley E CAROLINA POWER & LIGHT CO.
To:	Ippolito T Office of Nuclear Reactor Regulation
References
NO-81-080, NUDOCS 8101190609
Download: ML20002D165 (2)

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January 13, 1981 -

FILE: NG-3514(B) SERIAL NO.: NO-81-080 Office of Nuclear Reactor Regulation ATTENTION: Mr. T. A. Ippolito, Chief ,; '-

Operating Reactors Branch No. 2 United States Nuclear Regulatory Commission Washington, D. C. 20555 -

BRUNSWICK STEAM ELECTRIC PLANT, UNIT NOS. 1 AND 2 DOCKET NOS. 50-325 AND 50-324 LICENSE NOS. DPR-71 AND DPR-62 BWR SCRAM DISCHAItGE SYSTEM

Dear Mr. Ippolito:

This is in response to Mr. D. G. Eisenhut's December 9, 1980 letter which transmitted the NRC's December 1, 1980 report, Generic Safety Evaluation Report (SER) regarding BWR Scram Discharge System. Carolina Power & Light Company (CP&L) has reviewed this SER for the Brunswick Steam Electric Plant, Unit Nos. 1 and 2 and will meet the criteria of this r,eport by performing the following system modifications by the completion of the next refueling outage for each unit:

1. Relocate instrument volume instrumentation taps to provide a direct tie-in.

2. Install additional diverse instrumentation on the instrument volumes.

3. Install an additional set of vent and drain valves.

The surveillance criteria of this report is already being met; however, we would like to clarify our position on one of the criteria. This criterion as presently stated is:

"the operability of the entire system as an integrated whole shall be demonstrated periodically and during each operating cycle, by demonstrating scram instrument response and valve function at pressure and temperature at approximately 50 percent control-rod density."

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e Mr. T. A. Ippolito, Chief Our position on this is that we will review any such scram which occurs during the cycle and verify correct system function, i.e., all equipment performed properly. We do not believe that the intent of this criterion is to require a unique scram for the purpose of system operability verification.

Yours very truly, t

-C'f,O/a 6,Gd

/I E. E. Utley Executive Vice President i Power Supply and -

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