ML20083J144

Structural Steel Analysis for Limerick Generating Station, Unit 1 Reactor Bldg Elevation 253-Ft Main Steam & Feedwater Pipe Tunnel,Fire Zone 46

ML20083J144
Person / Time
Site:	Limerick
Issue date:	12/20/1983
From:	PROFESSIONAL LOSS CONTROL, INC.
To:
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ML20083H823	List: ML20083H820 ML20083H839 ML20083H856 ML20083H867 ML20083H971 ML20083H990 ML20083J007 ML20083J017 ML20083J019 ML20083J022 ML20083J026 ML20083J030 ML20083J033 ML20083J035 ML20083J038 ML20083J045 ML20083J052 ML20083J054 ML20083J058 ML20083J062 ML20083J070 ML20083J073 ML20083J079 ML20083J082 ML20083J085 ML20083J088 ML20083J093 ML20083J096 ML20083J100 ML20083J107 ML20083J111 ML20083J115 ML20083J119 ML20083J124 ML20083J127 ML20083J136 ML20083J144 ML20083J148
References
NUDOCS 8401090698
Download: ML20083J144 (3)

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STRUCTURAL STEEL ANALYSIS for LIMERICK GENERATING STATION l

UNIT 1 Reactor Building El. 253' Main Steam &,Feedwater Pipe Tunnel Fire Zone 46 December 20, 1983

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8401090698 840104 DR ADOCK 05000 P. O. Box 446 e Oak Ridge, Tennessee 37830 e (615) 482-3541

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LIMERICK GENERATING STATION

1. AREA DESCRIPTION The area under consideration is the Main Steam and Feedwater Pipe Tunnel on the 253' elevation o'f the Unit 1 Reactor Building (Fire Area 46). The bound-ing walls in the area are of reinforced concrete with an average thickness j of 3.5 feet. The total surface arca for heat transfer is approximately 5858 l 2 ft , (See Attachment A for a sketch of the area under consideration and a calculation of areas).

2. COMBUSTIBLE LOADING All caoling in this area is routed in conduit, there are no cable trays.

There are no combustible liquids in this area.

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3. VENTILATION PARAMETERS There is one 3' wide by 5'10" high door serving this area.

4. CASES EXAMINED With no exposed combustible cabling and no combustible liquids in the area, there is no fuel in the area to support a fire.

5. RESULTS Tne structural steel in this area will not fail due to a fire as there are no fixed combustibles in the area to support a fire.

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Unit 1 Reactor Building El. 253' Main Steam and Feednater Pipe Tunnel Fire Zone 46 Surface Area Calculation Walls Nortn wall (40' x 29') 1160 ft2 East wall (40' x 33') 1320 ft2 South wall (40' x 30') 1200 ft2 West wall (10' x 33') 1320 ft2 5000 ft2 Ceiling Area 1 (30' x 30') - [(3.5' x 3.5') + (10' x 3')] 857.75 ft2 rotal Surface Area for Heat Transfer 5857.75 ft2 ATTACHMENT A

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