ML17278A610

Proposed Changes to Tech Specs 3/4.6.3 & 3/4.6.5 to Allow Reactor Mode Changes W/Isolated Primary or Secondary Containment Isolation Valves W/No Degradation to Public Health or Safety

ML17278A610
Person / Time
Site:	Columbia
Issue date:	02/24/1986
From:	WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:
Shared Package
ML17278A609	List: ML17278A608 ML17278A610
References
TAC-60050, NUDOCS 8602280295
Download: ML17278A610 (3)

Text

CONTAINMENT SYSTEMS 3/4. 6. 3 PRIMARY CONTAINMENT ISOLATION VALVES LIMITING CONDITION FOR OPERATION 3.6.3 The primary containment isolation valves and the reactor instrumentation line excess flow check valves shown in Table 3.6.3-1 shall be OPERABLE with isolation times less than or equal to those shown in Table 3.6.3"l.

APPLICABILITY: OPERATIONAL CONDITIONS 1, 2, and 3.

ACTION:

a ~ With one or more of the primary containment isolation valves shown in Table 3.6.3"1 inoperable, maintain at least one isolation valve OPERABLE in each affected penetration that is open and within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> either@

1. Restore the.<$ operable valve(s) to OPERABLE status, or

2. Isolate each~affected penetration by use of at least one de-activated automat'c valve secured in the isolated position,"

3. Isolate each affectedhpenetration by use of at least one closed manual valve or blind~flange", and Otherwise, be in at least HOT,S(UTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the fol:lowing 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

b. With one or more of the reactor 'instrumentation line excess flow check valves shown in Table 3.6.3-1 inoperable, operation may continue and the provisions of Specifications 3. 0. 3 and 3. O. 4 are not applicable provided that within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> either;

1. The inoperable valve is returned to OPERABLE status, or

2. The instrument line is isolated and the associated instrument is declared inoperable.

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

"Isolation va1ves closed to satisfy these requirements may be reopened on an intermittent basis under administrative control.

4. The provisions of Specification 3.0.4 are not applicable provided that the affected penetration is isolated in accordance with ACTION 2. or 3. above, and provided that the associated system, if applicable, is declared inoperable and the appropriate ACTION statements for that system are performed.

WASHINIGTON NUCLEAR - UNIT 2 3/4 6" 19 Bb02280295 8b0224 PDR 'ADOCK 05000397 P PDR

4 CONTAINMENT SYSTEMS 0

SECONDARY COHTAINMEHT AUTOMATIC ISOLATION VALVES LIMITING CONDITION FOR OPERATION.

3.6.5.2 The secondary containment ventilation system automatic isolation valves shown in Table 3.6.5.2-1 shall be OPERABLE with isolation times less than or equal to the times shown in Table 3.6.5.2-1.

APPLICABILITY: OPERATIONAL CONDITIONS 1, 2, 3 and ".

ACTION:

With one or more of the secondary containment ventilation system automatic isolation valves shown in Table 3.6.5.2-1 inoperable, maintain at least one isolation valve OPERABLE in each affected penetration that is open and within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> either:

a. Restore the inoperable valves to OPERABLE status, or

, ~'} ~l

b. Isolate each affected penetration by use of at least one deactivated valve secured in the isolation position, or

c. Isolate each affected penetration by use of at least one closed manual valve or blind flange~, and

%~P Otherwise, in OPERATIONAL CONDITION 1, 2, or 3, be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOMH within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Otherwise, in OPERATIOHAL COHDITIOH ", suspend handling of irradiated fuel in the secondary containment, CORE ALTERATIOHS and operations with a potential for draining the'reactor vessel. The provisions of Specification 3.0.3 are not applicable.!

SURVEILLANCE REOUIREMEHTS

4. 6. 5. 2 Each secondary containment ventilation system automatic isolation valve shown in Table 3.6.5.2-1 shall be demonstrated OPERABLE:

a. Prior to returning the valve to service after maintenance, repair; or or replacement work is performed on the valve or its associated actuator, or power circuit by cycling the valve through at least one complete 'ontrol, cycle of full travel and verifying the specified isolation time.

b. During COLD SHUTDOWN or REFUELIHG at least once per 18 months by verifying that>> on a containment isolation test signal each isolation valve actuates to its isolation position.

C. By verifying the isolation time to be within its limit when tested pursuant to Specification 4. 0. 5.

"When irradiated fuel is being handled in the secondary containment and during CORE ALTERATIOHS and operations with a potential for draining the reactor vessel.

d. , The provisions of Specification 3.0.4 are not applicable provided that the affected penetration is isolated in 'accordance with ACTION b. or c. above, and provided that the associated system, if applicable, is declared inoperable and the appropriate ACTION statements for that system are performed.

ltASHINGTON NUCLEAR - UNIT 2 3/4 6-38