ML20076L849

Confirms Agreements Reached During 830622 Telcon Re Cables for Low Energy Lighting Fixtures.Redundant Circuit Protection Device (Fuse) Will Be Sized & Located to Ensure No Credible Faults Can Damage Class IE Cables

ML20076L849
Person / Time
Site:	Shoreham File:Long Island Lighting Company icon.png
Issue date:	07/14/1983
From:	James Smith LONG ISLAND LIGHTING CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
SNRC-929, NUDOCS 8307200012
Download: ML20076L849 (3)

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LONG ISLAND LIGHTING COMPANY

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) w i SHOREHAM NUCLEAR POWER STATION I w m 4e.-- w ww.w . P.O. BOX 618, NORTH COUNTRY ROAD + WADING RIVER, N.Y.11792 D'mnt Dbl Number July 14, 1983 SNRC-929 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulator U.S Nuclear Regulatory Commission Washington, D.C. 20555 Electrical Separation Cables for Low Energy Lighting Fixtures Shoreham Nuclear Power Station - Unit 1 Docket No. 50-322

Dear Mr. Denton:

This letter is to confirm certain agreements made in our conversation with Messrs. R. Caruso and J. Knox of your staff on June 22, 1983.

LILCO initiated this phone call to obtain the Staff's concurrence with an alternate method of handling separation deviations which exist between certain low energy lighting fixture cables and s Class lE cables in free air or Class lE cables in open cable trays.

A separation deviation exists if the cable between the lighting fixture and its twist-lock style outlet, mounted immediately above the lighting fixture, are separated by less than the required distance from free-air Class lE cables or Class lE cables in open cable trays.

Normally, this type of deviation is resolved at Shoreham by the installation of a qualified barrier to either the raceway or the free-air cable. The installation of a barrier serves to protect the Class lE cables from damage that might be caused by adjacent faulted non-safety related cables.

The lighting fixture cords are 3 conductor, No. 14AWG SJO type cable and typically supply a twin 40 watt bulb flourescent lighting fixture which has a load current of less than 1 amp at 120 VAC.

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July 14, 1983 SNRC-929 Page 2 LILCO proposed that, in-lieu-of installing barriers between these low energy cables and adjacent class lE cables, a redundant circuit protection device (fuse) be provided immediately before the SJO cord. The redundant circuit protection will be sized and located to ensure that no credible faults involving the SJO cord or fixture can damage adjacent Class lE cables.

Based upon the acreement reached with Messrs. Caruso and Knox with this proposal, LILCO is proceeding to implement this redundant circuit protection as an acceptable application for those fixtures for which the required separation distance is not maintained.

Should you have any questions, please contact this office.

Very truly yours,

' <$ - ^s J. L. Smith Manager, Special Projects Shoreham Nuclear Power Station TJS:bc cc: J. IIiggins All Parties Listed in Attachment 1

ATTACHMENT 1 ,

Lawrence Brenner, Esq. Herbert H.', Brown, Esq.

• Administrative Judge Lawrence Coe Lanpher, Esq.

Atomic Safety and Licensing Karla J. Letsche, Esq.

Board Panel Kirkpatrick, Lockhart, Hill U.S. Nuclear Regulatory Commission Christoper & Phillips Washington, D.C. 20555 8th Floor 1900 M Street, N.W.

Washington, D.C. 20036 Dr.. Peter A. Morris Administrative Judge .

Atomic Safety and Licensing Mr. Marc W. Goldsmith Board Panel Energy Research Group U.S. Nuclear Regulatory Commission 4001 Totten Pond Road Washington, D.C. 20555 - Waltham, Massachusetts 02154 Dr. James H. Carpenter MHB Technical Associates Administrative Judge 1723 Hamilton Avenue Atomic Safety and Licensing Suite K Board Panel . San Jose, California 95125 U.S. Nuclear Regulatory Commission Washington, D.C. 20555 "

, Stephen B. Latham, Esq. -

Twomey, Latham & Shea Daniel F. Brown, Esq. 33 West Second Street Attorney P.O. Box 398 Atomic Safety and Licensing Riverhead, New York 11901 Board Panel -

U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Ralph Shapiro, Esq.

l Cammer and Shapiro, P.C.

9 East 40th Street Bernard M. Bordenick, Esq. New York, New York 10016

, David A. Repka, Esq.

. U.S. Nuclear Regulatory Commission Washington, D.C. 20555 i

~ ' Matthew J. Kelly, Esq.

, State of New York Department of Public Service James Dougherty . Three Empire State Plaza 3045 Porter Street Albany, New York 12223 Washington, D.C. 20008 9

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