ML20138K976

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Fire Loop Flow Test
ML20138K976
Person / Time
Site: Millstone Dominion icon.png
Issue date: 07/09/1984
From: Warriner R
NORTHEAST UTILITIES
To:
Shared Package
ML20138K972 List:
References
NUDOCS 8510310095
Download: ML20138K976 (3)
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Text

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MILLSTONE l' NIT NO. 3 FIRE LOOP FLOW TEST On July 9, 1984, Generation Fire Protection Engineerine conducted a water flow test of the 12 inch underground fire water loop at Millstone Unit No. 3. The purpose of this flow test was to determine the water supply / pressure available, in order to provide a reference point for deternining epn/ psi throughout FP-III's underground loop.

The flow test was conducted utilizing two hydrants located within the northeast portion of the fire loop (North of 'Jaste Disposal Building & North of Maintenance Shop). Please refer to the attached sketch. Two 21"5 fire hoses (150' in length each) were connected to the flow hydrant. Attached to each hose was a standard Underwriters Laboratories (UL) playpipe (1 3/4" tip). Static and residual pres-sure readings were obtained using a calibrated pressure gage installed within the flow path.

The rate of flow in gallons per ninute (CPM) was determined by measurine, the velocity pressure of each strea, utilizing a calibrated pitet cao,e. The test findings were as follows:

Static Pressure 124 psi Residual Pressure 119 psi Hose #1 Pitot Reading 36 psi or 546 gpm Hose #2 Pitot Reading 40 psi or 575 gpm It was concluded that this remote hydrant is capable of delivering 1121 gem at a pressure of 119 psi.

RICHARD S. WARRISER bb4x 7/9/8Y

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Generation Fire Protection Engineerine Generation Engineering Department 8510310095 851007 PDR ADOCK 05000423 F PDR

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