ML19320A883

Proposed Revisions to Tech Specs 3.9.4 & 4.9.4 Re Containment Electrical Penetrations

ML19320A883
Person / Time
Site:	Millstone
Issue date:	06/06/1980
From:	NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML19320A881	List: ML19320A880 ML19320A883 ML19320A887
References
TAC-7424, NUDOCS 8007080169
Download: ML19320A883 (2)

Text

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August 1, 1975

, REFUELING 9PERATIONS CONTAINMENT PENETRATIONS LIMITING CONDITION FOR OPERATION 3.9.4 The containment penetrations shall be in the following status:

a. The equipment door closed and held in place by a minitaum of four bolts,

b. A minimum of one door in each airlock is closed, and

c. Each penetration providing direct access from the containment atmosphere to the outside atmosphere shall be either:

1. Closed by an isolation valve, blind flange, or manual

• valve, or

2. Be capable of being closed by an OPERABLE automatic containment purge valve.

APPLICABILITY: DURING CORE ALTERATIONS OR MOVEMENT OF IRRADIATED FUEL WITHIN THE CONTAINMENT.

ACTION:

With the requirements of the above specification not satisfied, ininedi-ately suspend all operations involving CORE ALTERATIONS or movement of irradiated fuel in the containment.

SURVEILLANCE REQUIREMENTS 4.9.4 Each of the above required ' containment penetrations shall be determined to be either in its isolated condition or capable of being closed by an OPERABLE automatic containment purge valve within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> prior to the start of and at least once per 31 days during CORE ALTERATIONS or movement of irradiated fuel in the containment by:

a. Verifying the penetrations are in their isolated condition, or

b. Testing the containment purge valves per the applicable portions of Specification 4.6.3.1.2.

MILLSTONE - UNIT 2 3/4 9-4

• During fuel movement or core alterations, up to four (4) electrical pene-trations may be removed. At any time a module is removed, there must exist a means to isolate or plug the opening if it becomes necessary to secure containment integrity.