ML17299A755

Proposed Tech Specs for one-time Change to Allow Performance of Required Environ Qualification Mods to Hydrogen Recombiners

ML17299A755
Person / Time
Site:	Palo Verde
Issue date:	11/19/1985
From:	ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Shared Package
ML17299A753	List: ML17299A752 ML17299A755
References
NUDOCS 8511220159
Download: ML17299A755 (2)

Text

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CONTAINMENT SYSTEMS ELECTRIC HYDROGEN RECOMBINERS

.7 LIMITING CONQITION FOR OPERATION 3.6.4.2 Two portable independent containment hydrogen recombiner systems shared among the three units shall be OPERABLE.

APPLICABILITY: MODES 1 and 2.

ACTION:

~ Mith one hydrogen recombiner system inoperable, restore the inoperable system to OPERABLE status within 30 days or meet the requirements of Specification 3.6.4.3, or be in at least HOT STANOBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

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SURVEILI ANCE RE UIREMENTS

'.6.4.2 Each hydrogen recombiner system shall be demonstrated OPERABLE:

a. At least once per 6 months by:

l. Verifying through a visual examination that there is no evi-dence of abnormal conditions within the recombiner enclosure and control console.

2. Operating the air blast heat exchanger fan motor and enclosed blower motor continuously for at least 30 minutes.

b. At least once per year by:

1. Performing a CHANNEL CALIBRATION of recombiner instrumentation.

2. Performing a "Low-Level Test-Heater Power Off" and "Low-Level Test-Heater Po~er On" test and verifying that the recombiner

~ . temperature increases to and is maintained at 600 + 25 F for at least one hour. With power off and a simulated input signal of 1280 F, verify the OPERABILITY of all control circuits. When this test is conducted, the air blast heat, exchanger fan motor and enclosed blower motor shall be operated continuously for at least 30 minutes:

c. At least once per 5 years by performing a Recombiner System "High-

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Level Test" and verifying that the recombiner temperature increases to and is maintained at 1200 + 50 F for at least, one hour.

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