ML20092G588

Proposed Tech Spec Changes for Surveillance Requirements & Limiting Conditions for Operation Re Standby Gas Treatment Sys

ML20092G588
Person / Time
Site:	Vermont Yankee
Issue date:	06/15/1984
From:	VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML20092G568	List: ML20092G565 ML20092G588
References
NUDOCS 8406250160
Download: ML20092G588 (1)

Text

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VYZP3 4 9

3.7 LIMITING CONDITIONS FOR OPERATION 4.7 SURVEILLANCE REQUIREMENTS

1. Except as specified in Specification 3.7.B.3 a. Pressure drop across the combined HEPA and below, both circuits of the Standby Cas Treatment charcoal filter banks is less than 6 inches System and at least one (1) diesel generator shall of water at 1500 cfm i 101.

be operable at all times when secondary j containment integrity is required, b. Inlet heater input is at least 9 kW.

2. a '. The results of the in-place cold DOP and 2. a. The tests and sample analysis of halogenat d hydrocarbon tests at design flows Specification 3.7.B.2 shall be perforined on HEPA and charcoal filter banks shall show initially and at least once per operating

> 991 DOP removal and1991 halogenated cycle not to escoed 18 months, and following hydrocarbon removal, painting, fire, or chemical release in any ventilation zone communicating with the

b. The results of laboratory carbon sample system, while the system is operating, that analysis shall show l95% radioactive methyl- .could contaminate the HEPA filters or iodide removal. (1300C, 951 R.H.) charcoal adsorbers,

c. System fans shall be shown to operate within b. Cold DOP testing shall be performed after i 10% of design flow, each complete or partial replacement of the HEPA filter bank.

3. From and after the date that one circuit of the Standby Gas Treatment System is made or found to c. Halogenated hydrocarbon testing shall be be inoperable for any reason, reactor operation is performed after each complete or partial permissible only during the succeeding seven days replacement of the charcoal filter bank.

unless such circuit is sooner made operable, .

provided that during such seven days all active In addition, the sample analysis of components of the other standby gas treatment Specification 3.7.B.2.b and the halogenated circuit shall be operable. hydrocarbon test shall be performed after every 720 hours0.00833 days <br />0.2 hours <br />0.00119 weeks <br />2.7396e-4 months <br /> of system operation.

d. Each circuit shall be operated with the heaters on at least 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> every month,

o. An ultrasonic leak test shall be performed on the gaskets sealing the housing panels downstream of the HEPA filters and adsorbers at least once per operating cycle not to 2,o u,o . .sc..d 1. months. 1e eh. .leras.nic t.se p,ey,ADOCK050.,, 00271 indicates the presence of a leak, the PDR condition will be evaluated and the gasket repaired or replaced, as necessary, 130 i Ammaammat No. 49

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