ML20087A118

Proposed TS 3/4 5-1 Re Verification That Each Safety Injection Tank Isolation Valve Open Will Not Be Required Due to Valve Being Mechanically Secured in Open Position

ML20087A118
Person / Time
Site:	Calvert Cliffs
Issue date:	12/31/1991
From:	BALTIMORE GAS & ELECTRIC CO.
To:
Shared Package
ML20087A116	List: ML20087A113 ML20087A118
References
NUDOCS 9201080196
Download: ML20087A118 (2)

Text

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1/jLS EMERGENCY CORE (q0 LING SYSTEMS (ECCS)

SAFETY INJECTION TANKS 11MITINGlWiDJT10N FOR OPERATION 3.5.1 Each reactor coolant system safety injection tank shall be OPERABLE with:

a. The isolation valve open, .

b. A contained borated water volume of between 1113 and 1179 cubic feet of borated water (equivalent to tank levels of between 187 and 199 incnes, respectively),

c. A boron concentration of bttween 2300 and 2700 ppm, and

d. A nitrogen cover pressure of between 200 and 250 psig.

APPLICABillJTl: H0 DES 1, 2 and 3. k ACTION:

a. With one safety injection tank inoperable, except as a result of a closed isolation valve, restore the inopernble tank to OPERABLE status within one hour or be in H01 SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />,

b. With one safety injection tank inoperable due to the isolation I I valve being closed, either immediately open the isolation valve or be in HOT STANDBY within one hour and be in HOT SHU1DOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

SURVU1LAltCllLEUJAQiLNTS 4.5.1 Each safety injection tank shall be demonstrated OPERABLE:

a. At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by:

1. Verifying the contained borated water volume and nitrogen cover-pressure in the tanks, and

2. Verifying hat each safety injection tank isolation valve is open pmWnW"AM E(Tec H w % h4 M e) + p i,c c h w k & q n h ie 3 Gern Rd<ely chge iD LSps;ny 199d %Qs ,'eciC.cGhn is mb Regained M J-w1-4+/ because. h valx h46 been .mechar'icall t secure 2 M de crea poslym

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I CALVERT CLIFFS UNIT 1 3/4 5 1 Amendment No. /E/EE.)T6 153

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