Text

Revised Tech Specs Re Limiting Condition for Operation for Primary Containment Air Locks
	ML20129D655
Person / Time
Site:	Brunswick
Issue date:	07/08/1985
From:	; CAROLINA POWER & LIGHT CO.
To:	;
Shared Package
ML20129D653	List: ML20129D649; ML20129D655;
References
	NUDOCS 8507160612
	Download: ML20129D655 (7)
	v • d • e

.-

ENCLOSURE TO SERIAL NO.: NLS-85-244 REVISED TECHNICAL SPECIFICATION PAGES BRUNSWICK UNIT NOS.1 AND 2 i

l l

i i

\\'

i

\\

\\:

I i -

8507160612 850708 PDR

~~

{0 P

ADOCK 05000324-o PDR Ii s.

.._.....=____....______..._--.._-___-__--__._____,_.______.._u.

(BSEP-1-31)

CONTAINMENT SYSTEMS PRIMARY CONTAINMENT AIR LOCKS LIMITINC CONDITION FOR OPERATION 3.6.1.3 The primary containment air lock shall be OPERABLE _with:

Both doors closed except when the air lock is being used for normal a.

transit entry and exit through the containment, then at least one air lock door shall be closed, and b.

An overall air lock leakage rate of less than or equal to 0.05 L, at P,, 49 psig.

APPLICABILITY: OPERATIONAL CONDITIONS 1, 2* and 3.

ACTION:

With either one primary containment air lock door inoperable:

a.

1.

Maintain at least the OPERABLE air lock door closed and either restore the inoperable air lock door to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or lock the OPERABLE air lock door closed.

2.

Operation may then continue until performance of the next required overall air lock leakage test provided that the OPERABLE air lock door is verified to be locked closed at least once per 31 days.

3.

Otherwise, be.in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

4.

The provisions of Specification 3.0.4 are not applicable.

With the primary containment air lock door interlock inoperable:

b.

1.

Lock the inner air lock door closed.

Operation may then continue provided that the inner air lock door is 2.

verified to be locked closed at least once per 31 days.

3.

Otherwise, be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

The provisions of Specification 3.0.4 are not applicable.

4.

With the primary containment air lock inoperable, except as a result of an c.

inoperable air lock door or interlock, maintain at least one air lock door closed; restore the inoperable air lock to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN witnin the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

See Special Test Exception 3.10.1.

BRUNSWICK - UNIT 1 3/4 6-4 Amendment No.

(BSEP-1-31)

CONTAINMENT SYSTEMS SURVEILLANCE REQUIREMENTS

[. 6[},. 3 p_Ea c h, p r i mam c_hh t a_i nmen t - a i e-l o c k-s ha lkbe;d emo,n s t ra t e d_0 PE,RAB LE :

~

Within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months following each closing, except when the air lock is a.

being used for multiple entries, then at least once per 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , by verifying seal leakage rate less than or equal to 5 scf per hour when the gap between the door seals is pressurized to Pa, 10 psig.

b.

By conducting an overall air lock leakage test at P, 49 psig, and by 3

verifying that the overall air lock leakage rate is within its limit:

1.

At least once per 6 months #, and 2.

Prior to establishing PRIMARY CONTAINMENT INTEGRITY when maintenance has been performed on the airlock that could affect the airlock sealing capability.*

c.

At least once per 6 months by verifying that only one door in each air lock can be opened at a time.**

The provisions of Specification 4.0.2 are not applicable.

Exemption to Appendix J of 10 CFR 50.

Except that the inner door need not be opened to verify interleck OPERABILITY when the primary containment is inerted, provided that the inner door interlock is tested within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months after the primary-containment has been de-inerted.

BRUNSWICK - UNIT 1 3/4 6-5 Amendment No.

\\

(BSEP-1-31) 3/4.6 CONTAINMENT SYSTEMS BASES 3/4.6.1 PRIMARY CONTAINMENT 3/4.6.1.1 PRIMARY CONTAINMENT INTECRITY Primary CONTAINMENT INTEGRITY ensures that the release of radioactive materials from the containment atmosphere will be restricted to those leakage paths and associated leak rates assumed in the accident analyses. This restriction, in conjunction with the leakage rate limitation, will limit the site boundary radiation doses to within the limits of 10 CFR Part 100 during accident conditions.

3/4.6.1.2 PRIMARY CONTAINMENT LEAKAGE The limitations on primary containment leakage rates ensure that the total containment leakage volume will not exceed the value assumed in tLe accident analyses at the peak accident pressure of 49 psig, P.

As an 3dded 3

conservatism, the measured overall integrated leakage rate is further limited to less than or equal to 0.75 L, or 0.75 L, as applicable, during performance of the periodic tests to account for possible degradation of the containment leakage barriers between leakage tests.

Operating experience with the main steam line isolation valves has indicated that degradation has occasionally occurred in the leak tightness of the valves; therefore, the special requirement for testing these valves.

The surveillance testing for measuring leakage rates is consistent with the requirements of Appendix "J" of 10 CFR Part 50 with the exception of exemptions granted for main steam isolation valve leak testing and testing the airlocks after each opening.

3/4.6.1.3 PRIMARY CONTAINMENT AIR LOCKS The limitations on closure and leak rate for the containment air locks are required to' meet the restrictions on PRIMARY CONTAINMENT INTEGRITY and the primary containment leakage rate given in Specifications 3.6.1.1 and 3.6.1.2.

The specification makes allowances for the fact that there may be long periods of time when the air locks will be in a closed and secured position during reactor operation. Only one closed door in each air lock is required to maintain the integrity of the containment.

In the event of an inoperable _ door _ interlock, locking shut the inner door will ensure containment integrity while permitting access to the lock for maintenance and surveillance testing.

BRUNSWICK - UNIT 1 B 3/4 6-1 Amendment No.

\\

(BSEP-2-30)

-CONTAINMENT SYSTEMS PRIMARY CONTAINMENT AIR LOCKS

~

LIMITING CONDITION FOR OPERATION 3.6.1.3.. The primary containment air lock shall be OPERABLE with:

a.

Both doors closed except when the air lock is being used for normal transit entry and exit through the containment, then at least one air lock door shall be closed, and b.

An overall air lock leakage rate of less than or equal to 0.05 L, at P,, 49 psig.

APPLICABILITY: OPERATIONAL CONDITIONS 1, 2* and 3.

ACTION:

-a.

With either one primary containment air lock door inoperable:

1.

Maintain at least the OPERABLE air lock door closed and either restore the inoperable air lock door to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or lock the OPERABLE air lock door closed.

2.

Operation may then continue until performance of the next required overall air lock leakage test provided that the OPERABLE air lock door is verified to be locked closed at least once per 31 days.

3.

Otherwise, be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

4.

The provisions of Specification 3.0.4 are not applicable.

b.

With the primary contai_nment air lock door interlock inoperable:

1.

Lock the inner air lock door closed.

2.

Operation may then continue provided that the inner air lock door is verified to be locked closed at least once per 31 days.

3.

Otherwise, be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

4.

The provisions of Specification 3.0.4 are not applicable.

c.

With the primary containment air lock inoperable, except as a result of an inoperable air lock door or interlock, maintain at least one air lock door closed; restore the inoperable air lock to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

See Special Test Exception 3.10.1.

BRUNSWICK - UNIT 2 3/4 6-4 Amendment No.

L__

. i (BSEP-2-30)

CONTAINMENT SYSTEMS SURVEILLANCE REQUIREMENTS 4.6.1.3 Each-primary containment air-lock-shall -be demonstrated OPERABLE: -

a.

Within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months following each closing, except when the air lock is being used for multiple entries, then at least once per 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , by verifying seal leakage. rate less than or equal to 5 scf per hour when the-gap between-the door seals is pressurized-to Pa, 10 psig.

b.

By conducting an overall air lock leakage test at P, 49 psig, and by 3

verifying that the overall air lock leakage rate is within its limit:

1.

At least once per 6 months #, and 2.

Prior to establishing.PPIMARY CONTAINMENT INTEGRITY when msintenance has beer. performed on the air lock that could affect the airlock sealing capability.*

c.

At least once per 6 months by verifying that only one door in each air lock can be opened at a time.**

9 The provisions of Specification 4.0.2 are not applicable.

Exemption to Appendix J of 10 CFR 50.

- Except that the inner door need not be opened to verify interlock OPERABILITY when the primary containment is inerted, provided that the inner door interlock is tested within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months after the primary containment has been de-inerted.

BRUNSWICK UNIT 2 3/4 6-5 Amendment No.

F (BSEP-2-30) m 3/4.6 CONTAINMENT SYSTEMS BASES 3/4.6.1 PRIMARY CONTAINMENT 3/4.6.1.1 PRIMARY CONTAINMENT INTEGRITY Primary CONTAINMENT INTEGRITY ensures that the release of radioactive materials from the containment atmosphere will be restricted to those leakage-paths and associated leak rates assumed in the accident analyses. This restriction, in conjunction with the leakage rate limitation, will limit the site boundary radiation doses to within the limits of 10 CFR Part 100 during accident conditions.

3/4.6.1.2 PRIMARY CONTAINMENT LEAKACE The limitations on primary containment leakage rates ensure that the total containment leakage volume will not exceed the value assumed in the accident analyses at the peak accident pressure of 49 psig, P. As an added a

conservatism, the measured overall integrated leakage rate is further limited to less than or equal to 0.75 L, or 0.75 L, as applicable, during performance of the periodic tests to account for possible degradation of the containment leakage barriers between leakage tests.

Operating experience with the main steam line isolation valves has indicated that degradation has occasionally occurred in the leak tightness of the valves; therefore, the special requirement for testing these valves.

The surveillance testing for measuring leakage rates is consistent with the requirements of Appendix "J" of 10 CFR Part 50 with the exception of

~

exemptions granted for main steam isolation valve leak testing and testing the airlocks after each opening.

3/4.6.1.3 PRIMARY CONTAINMENT AIR LOCKS The limitations on closure and leak rate for the containment air locks are required to meet the restrictions on PRIMARY CONTAINMENT INTEGRITY and the primary containment leakage rate given in Specifications 3.6.1.1 and 3.6.1.2.

The specification makes allowances for the fact that there may be long periods of time when the air locks will be in a closed and secured position during reactor operation. Only one closed door in each air lock is required to maintain the integrity of the containment.

In the event of an inoperable _ door _ interlock, locking shut the inner door will ensure containment integrity while permitting access to the lock for maintenance and surveillance testing.

BRUNSWICK - UNIT 2 B 3/4 6-1 Amendment No.

t

ML20129D655

Text

Navigation menu

Search