ML20235B799

Discusses Operability of Containment Isolation Valves. Special Test Exemption of Tech Spec 3.10.7 Extends to Operability of Containment Isolation Valves,Per 820521 Telcon W/A Bournia

ML20235B799
Person / Time
Issue date:	05/21/1982
From:	NRC
To:	NRC
Shared Package
ML16342B348	List: IA-87-121, Discusses Inservice Test Programs Re Full Stroke Exercising of Normally Closed Swing or Tilting Disk Check Valves Per 10CFR50.55a & Section XI of ASME Code ML20235B266 ML20235B268 ML20235B295 ML20235B304 ML20235B322 ML20235B406 ML20235B470 ML20235B514 ML20235B581 ML20235B613 ML20235B673 ML20235B768 ML20235B785 ML20235B799 ML20235B859 ML20235B877 ML20235B922 ML20235C007 ML20235C967 ML20235C970 ML20235D014 ML20235D041 ML20235D091 ML20235D157 ML20235D188 ML20235D233 ML20235D400 ML20235D433 ML20235D484 ML20235D532 ML20244B491 ML20244B568 ML20244B571 ML20244B913 ML20244B937 ML20244B941 ML20244B943 ML20244C126 ML20244C271 ML20244C361 ML20244C777 ML20244C785 ML20244C833 ML20244C935 ML20244C940 ML20244C986 ML20244D413 ML20244D552 ML20244D582 ... further results
References
FOIA-87-121 NUDOCS 8707090203
Download: ML20235B799 (2)

Text

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• • O May 21, 1982 MEMORANDUM: To File

SUBJECT:

OPERABILITY OF CONTAINMENT ISOLATION VALVES Per telephone conversation on May 21, 1982 with A. Bournia, the special test exemption of Technical Specification 3.10.7 extends to the operability of containment isolation valves. In particular, as T/S 3.10.7 suspends the requirement for containment integrity, the isolation function for containment isolation valves is not required.

l B707090203 870701 ,

PDR FOIA PDR WZLLIAM87-121 l

TECHNICAL SPECIFICATION INTERPRETATION A question was raised concerning the intent of Technical Specification 3 10 7 with respect to the need for valve 1WR029 to perform its primary containment isolation function in Condition 3 during the reactor recirc hot functional test (RR Test). This spec does, in fact, waive the local leak rate test requirements of all primary containment isolation valves.

Furthermore, it even allows the drywell head to be removed and the personnel-

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access ai rlock to be open. Pipe hanger inspections are requi red during this test; personnel will be entering and leaving the drywell routinely.

Presently valve IUR029 is not able to pass its local leak rate test and requires extensive machining in order to pass this test.' However, it is desirable to conduct the RR Test in a timely manner and this repair could stand in the way of that goal.

Therefore,

1. since it is not necessary for valve 1WR029 to be a pressure boundary in Condition 3 during the RR Test;

2. none of the other primary containment leakage rate criteria need be met; and 3 valve 1WR029 is in a closed loop (i.e. the penetration is neither open to the drywell nor open to a primary coolant system).

The need for valve 1WR029 to perform its primary containment isolatioh function is not requi red during the RR Test.

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