ML20037B360

Requests That Util Submit Application for Amend to License, Changing Tech Specs Re Addl Batteries & Chargers to Initiate Onsite Ac Emergency Power Supply Operation. Operability Surveillance Requirements Should Be Included

ML20037B360
Person / Time
Site:	Dresden
Issue date:	12/07/1977
From:	Desiree Davis Office of Nuclear Reactor Regulation
To:	Bolger R COMMONWEALTH EDISON CO.
References
NUDOCS 8009150633
Download: ML20037B360 (2)

Text

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i Distribution DEC 7 jgg

/ Docket ORB #2

. Local PDR

' ache t r c. :A.lu NRC PDR DDavis l

RBevan l

RDiggs Coe.conuealth Edisan Cc: pany DBrinkman ATTN: lir. R. L. Bolger Attorney, OELD Assistant Vice Presicent Ol&E (3) i Post Office Box 7c7 DEsienhut Chicago, Illinois 60690 TBAbe rr"^/

i oneuchanan Gentlemen:

ACRS (16)

File RE: Dr.ESDEri UNIT I;0.1 Extra copies e nave recently noted that i'i adoitica to tw b.C. power supplies which u

provide an uninterruptable power source for instruoentation and control systens, additional deciceted separate batteries drid chargers are utilize 0 at your f acility for initiating operation of onsite A.C. c eergency power supplies (diasel generators, switchgear, etc.).

I We have concluded that these additional batteries and chargers perfor, j

a safety function and have revicued your Technical Specifications to l

ceternine the anequacy of the requirencnts provided to cc: onstrate ans caintain :.he operability of these D.C. power supplies.

Based upon this revie'., we have concluded ths.t the Technical Specifications for your facility should be suppleaented to require the operability of these batteries and chargers wher:ever the associated A.C. er.iergency power supplies are required operable. Surveillance requirenents +ich deuonstrate the cperability of these catteries and chargers should also be acced to your Technical Specifications. These Surveillance Pequirements should be conparable to those currently includen in ycur Technical Specifications and applicable to the otner safety batteries ar,d chargsrs.

Pe re<1uest that you submit vittiin 60 days fro:a receipt of this letter, an er.plicatian for anendment to your license tht will chance your technical seccifications to be in conforaance uith the above recairc: ents.

In the event ycu shoulc. cesire further aiscussion of this atter, ole:m contact us.

Sincerely, Original Signed by Ccn K. Davis d

Den K. Davis, Chief Ch Ocerati n Deacters n.ra r 9

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Ccr.monwealth Edison Company December 7.,1977 cc:

"r. John W. Rowe l

snan, Lincoln & Beale Ccunselors at Law

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One First National Plaza, 42nd Floor Cnicago, Illinois 60603 Mr. B. B. Stephenson Plant Superintendent Dresden Nuclear Power Station Rural Route al "crris, Illinois 60450 t

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