ML20129H660

Proposed Tech Specs Re Limiting Conditions for Operation & Surveillance Requirements of Containment Air Locks

ML20129H660
Person / Time
Site:	Zion  File:ZionSolutions icon.png
Issue date:	07/08/1985
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20129H656	List: ML20129H652 ML20129H660
References
NUDOCS 8507190289
Download: ML20129H660 (3)

Text

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ATTACHENT Proposed Zion Appenoix A Technical Specification Changes to Sections 3.10 and 4.10 Containment Structural Integrity (Modification of 1/30/85 Proposal)

Pages Modified 214a 214b 8507190289 DR 850700 p ADOCK 05000295 PDR 0341K l

LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENT 3.10.2 Containment Air Locks 4.10.2 Containment Air Locks A. Each containment air lock shall be A. Each air lock shall be demonstrated OPERABLE with: OPERABLE:

1. Both doors closed except when 1. Within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> following each the air lock is being used for opening (except when the air normal entry and exit through lock is being used for multiple the containment, then at least entries, then at least once per one air lock door shall be 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />);

closed, and .

a. Verify that the leakage

2. The air lock leakage rate, when rate from the air lock door combined with other Type B and seals is less than or eaual C test results, shall be less to 1.0 SCFH at a test than or equal to 0.60 La at pressure (Pt r) of greater 47 psig (Pa).

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than or equal to 2.5 psig; or verify that the leakage rate from the air lock door APPLICABILITY: Modes 1, 2, 3, 4 and 7 seals is less than or equal to 4.75 SCFH at a test pressure (P t ) of greater ACTION: than or equal to 10.0 psig.

a.) With one containment air lock door inoperable: b. If the air lock door seal 1 Maintain at least the OPERABLE test identifies a leakage air lock door closed and either rate greater than 1.0 SCFH restore the inoperable air lock at a test pressure (Ptr) door to OPERABLE status within of greater than or equal to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or lock the OPERABLE ,2.5 psig or 4.75 SCFH at a air lock door closed. test pressure (P t) Of

2. Operation may continue until greater than or equal to performance of the next 10.0 psig, then an overall required overall air lock air lock leakage test shall leakage test provided that the be performed at a pressure OPERABLE air lock door is (Pa) of 47 psig or verified locked closed at least greater. The acceptance once per 31 days, criteria shall be as stated

3. Otherwise be in at least MODE 3 in 3.10.2.A.?.

within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and MODE 5 within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

07830/07840 214a

LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENT 3.10.2 (Continued) 4.10.2.A (Continued)

, 4. The provisions of Technical 2. By conducting overall air lock Specification 3.0.4 are not leakage tests at a pressure (Pa) Of

} applicable. 47 psig or greater and verifying the

! overall air lock leakage is within b.) With the containment air lock the limit:

inoperable, except as a result of an a. At 6 month intervals i inoperable air lock door, maintain at b. Prior to entering Mode 4; if in least one air lock door closed; restore Mode 5 greater than or equal to 7 the inoperable air lock to OPERABLE days and containment integrity status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at has been broken (both doors open).

least MODE 3 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 M3DE S within the following 30 3. At least once per 6 months by hours. verifying that only one door in each air lock can be opened at a time.

07830/07840 214b