ML19263C424

Forwards 16 Photographs of Cable Spreading Room & Description Which Provides Info on Existing Heat Loads. Interested in Tests Involving Cable Spreading Room Deluge Sys

ML19263C424
Person / Time
Site:	Arkansas Nuclear
Issue date:	02/12/1979
From:	Rueter D ARKANSAS POWER & LIGHT CO.
To:	Reid R Office of Nuclear Reactor Regulation
References
1-029-8, 1-29-8, NUDOCS 7902220089
Download: ML19263C424 (3)

Text

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H E L P i tV G UUILD A n n A N fi A :s A RK ANS AS POWER S LIGHT COMPA NY P O DOX 551 = LITTLE ROCK. AAKANSAS 722O3 = [5013 371-4191 DONALD A RUETER February 12, 1979 Dine CT OR TECHNICAL AND ENVIRONMENTAL SERVICES 1-029-8 Director of Nuclear Reactor Regulation ATTN: Mr. Robert W. Reid Operating Reactors Branch #4 U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Subject:

Arkansas Nuclear One-Unit 1 Docket No. 50-313 License No. DPR-51 Fire Protection (File: 1510, 2040)

Gentlemen:

Enclosed are sixteen (16) photographs of the ANO-l Cable Spreading Room. These photographs along with the attached description should give you some idea as to the existing heat loads in the Cable Spreading Room.

Please take note of the following comments:

1) During the outage when these photographs were taken installation of the subject deluge system was started as shown in photos 1, 3, 10b (water supply piping; some con-nected), and 6 (future location of nozzle. All trays will be protected as shown in photograph 6.

2) The majority of the cable trays are near the ceil-ing as shown in photos 3, 6, 7, 10, snd 12. This ensures early actuation of the smoke detectors (installed at the ceiling level as shown in photo 7), and allows for fire brigade access to fight the overhead fires. The north-south aisle does have cable trays at all elevations.

3) Photographs 10a through 10e were taken from the east entrance. 10a shows the view due west from the entrance (note the south wall). 10e shows the view due north from the entrance. By placing the five photos next to each other you can get an idea as to how the entire southern half of the '

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1-029-8 Mr. Robert W. Reid February 12, 1979

4) The greatest heat loads are probably located in the northen most sector of the Cable Spreading Room as shown in photos 4, 9, and 12.

Arkansas Power and Light is extremely interested in any test involving the ANO-1 Cable Spreading Room Deluge System. We would appreciate the opportunity to contribute to this effort through our presence at appropriate meetings and/or tests.

We regret our absence at the February 9, 1979 meeting con-cerning this topic. The extremely bad weather that week kept us from attending.

Very truly yours ,

yn ts :c / u e. v, t Donald A. Rueter DAR/ MOW /ew Attachment

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