B14291, Proposed TS 3/4 6-3.d Increasing Type B & C Surveillance Testing Intervals from 24 Months to 34 Months for Cycle 4 Only

Proposed TS 3/4 6-3.d Increasing Type B & C Surveillance Testing Intervals from 24 Months to 34 Months for Cycle 4 Only

ML20127M507
Person / Time
Site:	Millstone
Issue date:	11/18/1992
From:	NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20127M505	List: B14291, Proposed TS 3/4 6-3.d Increasing Type B & C Surveillance Testing Intervals from 24 Months to 34 Months for Cycle 4 Only ML20127M501
References
B14291, NUDOCS 9211300252
Download: ML20127M507 (2)

Text

- _ _ _ . _ _ _ _ _ _ _.

E0.sifLLllL_.10E f!L4221 Attachment 1 Millstone Nuclear Power Station, Unit No. 3 Proposed Revision to Technical Specification Containment Leakage i

November 1992 i

9211300252 921118 PDR ADOCK 05000423 P PDR

j - .

i .-

i i

j CONTAINMENT SYSTEMS f SURVEILLANCERE0VIREyENTS(Continued) . __

t

c. The accuracy of each Type A test shall be verified by a supplemental j test which

l

1) Confirms the accuracy of the test by verifying that the supple-

. mental test results, L , minus the sum of the Type A and the i superimposed leak,o L , is equal to or less than 0.25 L,;

I

2) Has a duration sufficient to establish accurately the change in leakage rate between the Type A test and the supplemental test;

and l 3) Requires that the rate at - which gas is injected into the l containment or bled from the containment during the j supplemental test is between 0.75 L, and 1.25 L,.

d 3 d. Type B and C tests shail be conducted with gas at P , 53.27 psia

! (38.57 psig), at intervals no greater than 24 months (%) except for j tests involving:

I

1) Air locks 1

j e. The cc;nbined bypass leakage rate shall be determined to be less than

! or equal to 0.042 L by applicable Type B and C tests at least once

! per 24 months (*) ex8ept for. penetrations which are not individually

! testable; penetrations not individually testable shall be determined i to have no detectable- leakage when tested with soap- bubbles while

' the containment is pressurized to P,, 53.27 psia (38.57 psig),

during each Type A test;

f. Air locks shall be tested and demonstrated OPERABLE by the requirements of Specification 4.6.1.3;

g. Purge supply and exhaust isolation valves shall be demonstrated OPERABLE by the requirements of Specificati7ns 4.6.3.2.c and 4.9.9.

h. The provisions of Specification 4.0.2 are not applicable.

(*) The 24-month interval for Type B and Type (, tests has been increa mt to 34 months for Cycle 4 enly.

MILLSTONE - UNIT 3 3/4 6 s Amendment No. A9 0105

.