ML20211H049

Proposed Tech Specs,Adding Measures to Assure That One Essential Svc Water Pump Will Not Intentionally Be Taken Out of Svc from Each Unit at Same Time for Maint & Requiring Availability of Essential Svc Water Sys Unit Crosstie

ML20211H049
Person / Time
Site:	Byron
Issue date:	10/29/1986
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20211H046	List: ML20211H040 ML20211H049
References
NUDOCS 8611040386
Download: ML20211H049 (1)

Text

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'o PLANT SYSTEMS 3/4.7.4. ESSENTIAL SERVICE WATER SYSTEM LIMITING CONDITION FOR OPERATION 3.7.4.2 The Essential Service Water System Unit Crosstie shall be either open or capable of being opened from the Main Control Board as a flow-path between Units 1 and 2.

APPLICABILITY:

Modes 1, 2, 3, and 4.

ACTION:

a.

With one or both of the crosstie valve (s) closed and not capable of being opened from the Control Room, within 7 days restore the valve (s) to available status or open the affected valve (s), and maintain the affected valve (s) open; otherwise be in at least IlOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SIIUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

b.

The provisions of Specification 3.0.4 are not appliceble.

SURVEILLANCE REQUIREMENTS 4.7.4.2 The Essential Service Water System Unit Crosstic shall be demonstrated available:

a.

At least once per 92 days by cycling crosstie valves 1SX005 and 2SX005 or verify valve is locked open with power removed.

b.

The provisions of Specification 4.0.4 are not applicable.

8611040386 861029 PDR ADOCK 05000454 P

PDR Byron Units 1 and 2 3/4 7-12c

1. 40/15