ML20024H424

Proposed Tech Specs Re Use of Mass Point Method for Conducting Containment Integrated Leak Rate Tests & Revise Required Schedule for Conducting Tests,Per 10CFR50,App J

ML20024H424
Person / Time
Site:	Calvert Cliffs
Issue date:	05/24/1991
From:	BALTIMORE GAS & ELECTRIC CO.
To:
Shared Package
ML20024H423	List: ML20024H422 ML20024H424
References
NUDOCS 9106030343
Download: ML20024H424 (2)

Text

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CG, 4

CONTAINMENT SYSTEMS CONTAINMENT LEAKAGE . '.

LIMITING CONDITION FOR OPERATION 3.6.1.2 Containment leakag'e rates shall be limited to:

a. An overall integrated leakage rate of:

1. 346,000 SCCM), 0.20 percent by weight of the containment 1airL,pe(r 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at P,, 50 psig, or

2. 1Lt (61,600 SCCM), 0.058 percent by weight of the containment air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at a reduced pressure of Pt . 25 psig,

b. A combined leakage rate of 10.60 L (207,600 SCCM), for all penetra-tions trei ' al'fes subject to Type B $nd C tests when pressurized to P,.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

With either (a) the measured overall integrated co'ntainment leakage rate  !

exceeding 0.75 L SCCM) or 0.75 L (46,200 SCCM), as applicable, or (b) with the Sea (259,500sured combined leakage fate for all penetrations an subject to Types B and C tests exceeding 0.60 L , restore the leakage rate (s) to within the limit (s) prior to increasing the Reactor Coolant System temperature above 200*F.

SURVEILLANCE REQUIREMENTS

4. 6.1. 2 The containment leakage rates shall be demonstrated at the follow-ing test schedule and shall be detemined in conformance with the criteria 343 specified in Appendix J of 10 CFR Part 50:4mg the[ methods, anc provisionsf of E! li45.4 - 1372s

a. Three Type A tests ([vJer1_ Integrated Containment Leakage Rate) shall be conducted at[40 10 =teintervals during shutdown at l either Pa (50 psig) orlat Pt (25 psig) during each 10-year service period. , , _

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cyt vor e mhe equl CALVERT' CLIFFS - UNIT 1 3/4 6-2 AmendmentNo.75,MM,///,

m+%ggg FDn M MSPOR W P

. 01.3 CONTAINMENT SYS' EMS, COM,TAINMENT LEAKAGE LIMITING CONDITION FOR OPERATION 3.6.1.2 Containment leakage rates shall be limited to:

a. An overall integrated leakage rate of:

1. <L (346,000 SCCM), 0.20 percent by weight of the containment liir,per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at P,, 50 psig, or

2. <L t (44,600 SCCM).'O.042 percent by weight of the containment air per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> at a reduced pressure of P , 25 psig.

b. A combined leakage rate of < 0.60 L SCCM) for all penetra-tions and valves subject to Type B In(207.600d C tests when pressurized APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

With either (a) the measured overall integrated contairrnent leakage rate (

exceeding 0.75 L SCCM), or 0.75 L (33,400 SCCM), as applicable, or (b) with the Sea (259,500sured combined leakage rite for all penetrations and valves subject to Types B and C tests exceeding 0.60 La , restore the leakage rate (s) to within the limit (s) prior to increasing the Reactor Coolant System temperature above 200'F.

SURVEILLANCE REQUIREMENTS 4.6.1.2 The containment leakage rates shall be demonstrated at the follow-ing test schedule and shall be detemined in confomance with the criteria, ified in endix J of 10 CFR 50: uit the[hiethods, and provisions)

a. Three Type A tests (Overall Integrated Containrc.ent Leakage Rate) shall be conducted at 90

• 10 matN intervals during shutdown at l either Pa (50 psig) or at Pt (25 psig) during each 10-year service period, ofPox ( c ch CALVERT CLIFFS - UNIT 2 3/4 6-2 AmendmentNo.H,/),h

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