ML20116F047

Proposed Tech Specs Re Increase in Allowed Outage Time for Charging Pump from 72 H to 7 Days

ML20116F047
Person / Time
Site:	Comanche Peak
Issue date:	08/02/1996
From:	TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:
Shared Package
ML20116F045	List: ML20116F042 ML20116F047
References
NUDOCS 9608060214
Download: ML20116F047 (2)

Text

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J Attachment 3 to TXX 96434 Page 1 of 2

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REACTIVITY CONTROL SYSTEMS CHARGING PUMPS OPERATING LIMITING CONDITION FOR OPERATION 3.1.2.4 At least two centrifugal charging pumps shall be OPERABLE.

APPLICABILITY: MODES 1, 2, 3*, and 4* **.

ACTION:

With only one charging pump OPERABLE, restore at least two charging pumps to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> 7; days or be in at least HOT STANDBY and borated to a SHUTDOWN MARGIN equivalent to at least the value specified in the COLR at 200*F within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, restore et least two charging pumps to OPERACLE status within the next 7 days or 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 />.

SURVEILLANCE R[0UIREMENTS 4.1.2.4.1 The required centrifugal charging pump (s) shall be demonstrated OPERABLE by testing pursuant to Specification 4.0.5.

4.1.2.4.2 The required positive displacement charging pump shall be demonstrated OPERABLE by testing pursuant to Specification 4.1.2.2.c.

4.1.2.4.3 Whenever the temperature of one or more of the Reactor Coolant System (RCS) cold legs is less than or equal to 350*F, a maximum of two charging pumps shall be OPERABLE, except when Specification 3.4.8.3 is not applicable.

When required, one charging pump shall be demonstrated inoperable' at least once per 31 days by verifying that the motor circuit breakers are secured in the open position.

The provisions of Specifications 3.0.4 and 4.0.4 are not applicable for entry into MODES 3 and 4 for the charging pump declared inoperable pursuant to Specification 3.1.2.4 provided the charging pump is restored to OPERABLE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> after entering MODE 3 or prior to the temperature of one or more of the RCS cold legs exceeding 375*F, whichever comes first.

In MODE 4 the positive displacement pump may be used in lieu of one of the required centrifugal charging pumps.

8 An inoperable pump may be energized for testing provided the discharge of the pump has been isolated from the RCS by a closed isolation valve (s) with power removed from the valve operator (s) or by a manual isolation valve (s) secured in the closed position.

COMANCHE PEAK - UNITS 1 AND 2 3/4 1 10 Unit 1 Amendment No. 44 Unit 2 Amendment No. 30 9608060214 960802 PDR ADOCK 05000445 P ~ PDR

Attachment 3 to TXX 96434 Page 2 of 2 EMERGENCY CORE COOLING SYSTEMS 3 /4. 5. 2 ECCS SUBSYSTEMS T x > 350*F LIMITED CONDITION FOR OPERATION 3.5.2 Two independent Emergency Core Cooling System (ECCS) subsystems shall be OPERABLE with each subsystem comprised of:

a. One OPERABLE centrifugal charging pump,

b. One OPERABLE safety injection pump,

c. One OPERABLE RHR heat exchanger,

d. One OPERABLE RHR pump, and

e. An OPERABLE flow path capable of taking suction from the refueling water storage tank on a Safety Injection signal and automatically '

opening the containment sump su. tion valves during the recirculation phase of operation.

APPLICABILITY: MODES 1, 2, and 3*.

ACTION:

a; W1.thione ECCS(subsystem! inoperable:becausefof:the~inoperabilitylof a rcentri fugal: cha rgi ng : pump ; i restore i theli noperabl e: pump ; to OPERABLEJstatusLwithin;7Jdays_or be11n at:leastLHOTVSTANDBYLwithin theinext16; hours.a.nd in HOT1 SHUTDOWN;within theifollowing;6ihours/

eb. With one ECCS subsystem inoperable forgreasons;lot.her;than:aq inoperableecentrifugal; charging! pump, 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 the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in H0T SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

bc. In the event the ECCS is actuated and injects water into the Reactor Coolant System, a Special Report shall be prepared and submitted to the Commission pursuant to Specification 6.9.2 within 90 days describing the circumstances of the actuation and the total accumulated actuation cycles to date. The current value of the usage factor for each affected Safety Injection nozzle shall be provided in this Special Report whenever its value exceeds 0.70.

• The provisions of Specifications 3.0.4 and 4.0.4 are not applicable for entry into MODE 3 for the centrifugal charging pumps and the safety injection pumps declared inoperable pursuant to Specification 3.5.3 provided the centrifugal charging pumps and the safety injection pumps are restored to OPERABLE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or prior to the temperature of one or more of the RCS cold legs exceeding 375'F, whichever comes first.

COMANCHE PEAK UNITS 1 AND 2 3/4 5 3