ML17305B732

Proposed Tech Spec Surveillance Requirement 4.7.11 Re Testing of Shutdown Cooling Sys Suction Valves

ML17305B732
Person / Time
Site:	Palo Verde
Issue date:	09/09/1991
From:	ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Shared Package
ML17305B731	List: ML17305B730 ML17305B732
References
NUDOCS 9109170176
Download: ML17305B732 (6)

Text

F3 jNrORivl.'TIDE'ONLY PLANT SYSTEMS 3/4.7. 11 SHUTDOWN COOl ING SYSTEM LIMITING CONDITION FOR OPERATION 3.7. 11 Two independent shutdown cooling subsystems shall be OPERABLE, with each subsystem comprised of:

a. One OPERABLE low pressure safety injection pump, and

b. An independent OPERABLE flow path capable of taking suction from the RCS hot leg and discharging coolant through the shutdown cooling heat exchanger and back to the RCS through the cold leg injection lines.

APPl ICABILITY: MODES 1, 2, and 3.

ACTION:

a 0 Mith one shutdown cooling subsystem inoperable, restore the inoperable subsystem to OPERABI E status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, be in at least HOT SHUTDOMN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and be in COLD SHUTDOWN within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> and continue action to restore the required subsystem to OPERABLE status.

b. Mith both shutdown cooling subsystems inoperable, restore one subsystem to OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in at least HOT STANDBY within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and be in HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and continue action to restore the required subsystems to OPERABLE status.

c. Mith both shutdown cooling subsystems inoperable and both reactor

.coolant loops inoperable, initiate action to restore the required subsystems to OPERABLE status.

SURVEILLANCE RE UIREMENTS 4.7. 11 Each shutdown cooling subsyst m shall be demonstrated OPERABLE:

a. At least once per 18 months, during shutdown, by establishing shutdown cooling flow from the RCS hot legs, through the shutdown cooling heat exchangers, and returning to the RCS cold legs.

~pen pel-w) ssivt At least once per 18 months, during shutdown, by testing the ~~4+e-b.

~ interlock action of the shutdown cooling system connections from the RCS. The shutdown cooling system suction valves shall not o en when RCS ressure is greater than 410 psia. The shutdown coo ing system suction va ves ocate ou sl e containment shall close auto-matically when RCS pressure is greater than 500 psia. The shutdown cooling system suction valve located inside containment shall close automaticall when RCS pressure is greater than 700 psia.

9'10917017Acj 910909

'PDR ADOCK 05000528 P PDR PALO VERDE - UNIT 1 3/4 7-29 AMENDMENT NO. 54

P lg < > ie C

F IMFORM>viow owl vO PLANT SYSTEMS 3/4.7. 11 SHUTDOWN COOLING SYSTEM LIMITING CONDITION 'FOR OPERATION 3.7. 11 Two independent shutdown cooling subsystems shall be OPERABLE, with each subsystem comprised of:

a. One OPERABLE low pressure safety injection pump, and

b. An independent OPERABLE flow path capable of taking suction from the RCS hot leg and discharging coolant through the shutdown cooling heat exchanger and back to the RCS through the cold leg injection lines.

APPLICABILITY: MODES 1, 2, and 3.

ACTION:

a. Mith one shutdown cooling subsystem inoperable, restore the inoperable subsystem to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or. be in at least HOT STANDBY within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, be in at least HOT SHUTDOMN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and be in COLD SHUTDOWN within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> and continue action to restore the requi red subsystem to OPERABLE status.

b. With both shutdown cooling subsystems inoperable, restore one subsystem to OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in at least HOT STANDBY within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and be in HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and continue action to restore the required subsystems to OPERABLE status.

c. Mith both shutdown cooling subsystems inoperable and both reactor coolant loops inoperable, initiate action to restore the required subsystems to OPERABLE status.

SURVEILLANCE RE UIREHENTS 4.7. 11 Each shutdown cooling subsystem shall be demonstrated OPERABLE:

a. -

At least once per 18 months, during shutdown, by establishing shutdown cooling flow from the RCS hot legs, through the shutdown cooling heat exchanqers, and returning to the RCS cold legs.

open perrn1$ g>vp b,

~

At least once per 18 months, during shutdown, by testing the

'nterlock action of the shutdown cooling syst'm connections from a~a~

the RCS. 'he shutdown cooling system suction valves shall not o en when RCS pressure is greater than 410 psia. The shutdown coo >ng sys em suc ion va ves ocate ou s) e con ainment shall close auto-matically when RCS pressure is greater than 500 psia. The shutdown cooling system suction valve located inside containment shall close automatically when RCS pressure is greater than 700 psia.

PALO VERDE - UNIT 2 3/4 7-29 AMENDMENT NO. 30

A I ' " ~

J II i

"l lip I

~s

F R lNFORMATION ONLY PLANT SYSTEMS 3/4.7. 11 SHUTDOWN COOLING SYSTEM LIMITING CONDITION FOR OPERATION 3.7. 11 Two independent shutdown cooling subsystems shall be OPERABLE, with each subsystem comprised of:

a. One OPERABLE low pressure safety injection pump, and

b. An independent OPERABLE flow path capable of taking suction from the RCS hot leg and discharging coolant through the shutdown cooling heat exchanger and back to the RCS through the cold leg'injection lines.

APPLICABILITY: . MODES 1, 2, and 3.

ACTION:

a. With one shutdown cooling subsystem inoperable, restore the to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT inoperable'ubsystem STANDBY within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, be in at least HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and be in COLD SHUTDOWN within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> and continue acti on .io restore the .r.equired subsystem..to. OPERABLE,.status...

b. With both shutdown cooling subsystems inoperable, restore one subsystem to OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in at least HOT STANDBY within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and be in HOT SHUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and continue action to restore the required subsystems to OPERABLE .

status.

r ~ ~

c. With both shutdown cooling subsystems inoperable and both reactor coolant loops inoperable, initiate action to restore the required subsystems to OPERABLE status.

SURVEILLANCE RE L'IREMENTS 4.7. 11 Each shutdown cooling subsystem shall be demonstrated OPERABLE:

a. At least once per 18 months, during shutdown, by establishing shutdown cooling flow from the RCS hot legs, through the shutdown cooling heat exchangers, and returning to the RCS cold legs.

open perrnisg luau At least once per 18 months, during shutdown, by testing the ev4e~~

b.

~ interlock action of the shutdown cooling system connections from the RCS. The shutdown cooling system suction valves shall not o en when RCS pressure is greater than 410 psia. The shutdown coo sng sys em suc son va ves oca e ou s> e con asnment shall close auto-matically when RCS pressure is greater than 500 psia. The shutdown cooling system suction valve'ocated inside containment shall close automatically when RCS pressure is greater than 700 psia.

PALO VERDE " UNIT 3 3/4 7-29 AMENDMENT NO.

A ~

l