ML20138N594

Provides Supplemental Response to Generic Ltr 83-28,Item 1.2 Re Drywell Radiation Monitors.Two Monitors & Associated Strip Recorders Supplied from Separate Electrical Divs. Redundancy Provides Necessary Reliability

ML20138N594
Person / Time
Site:	Quad Cities
Issue date:	12/19/1985
From:	George Alexander COMMONWEALTH EDISON CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
1034, GL-83-28, NUDOCS 8512240081
Download: ML20138N594 (1)

Text

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3 Commonwealth Edison :

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f One first National Plaza, Chicago, Ilknois a

7 ". Address Reply to: Post Office Box 767 -

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, Chicagos lilinois 60690

~ D e c e m b e'r' 1 9, 1985

-Mr.; Harold-R.iDenton, Director.

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-Office.of= Nuclear Reactor. Regulation-o-

EU.S. Nuclear. Regulatory Commission

-; Washington,lDC' 20555-t

Subject:

- Quad-Cities' Station-Supplemental Response to Generic Letter 83-28

' Item.1.2.

. NRC Dockets-50-254/265.

Dear Mr. Denton:

In. regard to Item :1.2 of Generic Letter 83-28, the NRC

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-Project Manager for. Quad Cities posed a question about the drywell Jradiation monitors.

.In, response we contacted the station and were told (that theltwo drywell radiation.monitorsLand associated strip

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. recordersare supplied from separate electrical divisions.

We

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b3 believe the redundancy in the design provides.the necessary.

relia bility.'

If there are-as,.further questions on this topic, please conta'ct this

office.

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l Fifteen > copies-ofJthis letter are attached ~for your use.

1 Sincerely, s

Greg exa der Nuclear Licensing Administrator N

t i cc:i US NRC. Document Control. Desk R..B.

Bevan, NRR

J. G..Keppler - RIII RIII, Inspectors -~QC f.

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