ML042810530

Tech Spec Pages for Amendments 261 and 143 Containment Isolation Valves

ML042810530
Person / Time
Site:	Beaver Valley
Issue date:	10/05/2004
From:	Office of Nuclear Reactor Regulation
To:
References
TAC MC1095, TAC MC1096
Download: ML042810530 (3)

Text

CONTAINMENT SYSTEMS 3/4.6.3 CONTAINMENT ISOLATION VALVES LIMITING CONDITION FOR OPERATION 3.6.3.1 Each containment isolation valve shall be OPERABLE*.

APPLICABILITY:

MODES 1, 2, 3 and 4.

ACTION:

GENERAL NOTES - - - - - - - - - - - - - - -

1.

ACTION a is not applicable to penetration flow paths addressed by ACTION c.

2.

ACTION c is only applicable to penetration flow paths with one inoperable containment isolation valve connected to a closed system inside containment.

3.

Penetration flow path(s) except for the containment purge supply and exhaust valve flow paths may be unisolated intermittently under administrative controls.

4.

Separate ACTION statement entry is allowed for each penetration flow path.

5.

Enter applicable ACTION statements for systems made inoperable by containment isolation valves.

a.

With one or more penetration flow paths with one containment isolation valve inoperable, isolate the affected penetration flow path within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> by use of at least one closed and deactivated automatic valve, closed manual valve, blind flange, or check valve with flow through the valve secured; and verify the affected penetration flow path is isolated at least once per 31 days for isolation devices outside containment and prior to entering MODE 4 from MODE 5, if not performed within the previous 92 days, for isolation devices inside containment.

Otherwise, be in at least HOT STANDBY 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

Locked or sealed closed valves, except for the containment purge supply and exhaust valves, may be opened on an intermittent basis under administrative control.

BEAVER VALLEY -

UNIT 2 3 /4 6-15 Amendment No. 143

CONTAINMENT SYSTEMS LIMITING CONDITION FOR OPERATION (Continued)

b.

With one or more penetration flow paths with two containment isolation valves inoperable, isolate the affected penetration flow path within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> by use of at least one closed and deactivated automatic valve, closed manual valve, or blind flange.

Otherwise, be in at least HOT STANDBY 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

c.

With one or more penetration flow paths with one containment isolation valve inoperable, isolate the affected penetration flow path within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> by use of at least one closed and deactivated automatic valve, closed manual valve, or blind flange; and verify the affected penetration flow path is isolated at least once per 31 days.

Otherwise, be in at least HOT STANDBY 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REQUIREMENTS 4.6.3.1 Each containment isolation valve shall be demonstrated OPERABLE*:

a.

By verifying each purge supply and exhaust valve is deactivated in the closed position at least once per 31 days for valves outside containment and prior to entering MODE 4 from MODE 5 if not performed within the previous 92 days for valves inside containment.

b.

By, at least once per 92 days, cycling each weight or spring loaded check valve testable during plant operation, through one complete cycle of full travel and verifying that each check valve remains closed when the differential pressure in the direction of flow is < 1.2 psid and opens when the differential pressure in the direction of flow is

> 1.2 psid but less than 6.0 psid.

c.

By verifying, at the frequency specified in the Inservice Testing Program, the isolation time of each automatic power operated containment isolation valve that is not locked, sealed, or otherwise secured in position, and required to be closed during accident conditions, is within limits.

• Locked or sealed closed valves, except for the containment purge supply and exhaust valves, may be opened on an intermittent basis under administrative control.

BEAVER VALLEY - UNIT 2 3 /4 6-16 Amendment No.143

CONTAINMENT SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

d.

By verifying, at least once per 18 months, each automatic power operated containment isolation valve that is not

locked, sealed, or otherwise secured in position, and required to be closed during accident conditions, actuates to the isolation position on an actual or simulated actuation signal.

e.

By, at least once per 18 months, cycling each weight or spring loaded check valve not testable during plant operation, through one complete cycle of full travel and verifying that each check valve remains closed when the differential pressure in the direction of flow is

< 1.2 psid and opens when the differential pressure in the direction of flow is 2 1.2 psid but less than 6.0 psid.

BEAVER VALLEY - UNIT 2 3 /4 6-17 Amendment No. 143 l