ML18093B154

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Proposed Tech Specs,Incorporating Info for Reactor Head Vents Per Genric Ltr 83-27 & NUREG-0737,Item II.B.1 Requirements
ML18093B154
Person / Time
Site: Salem  PSEG icon.png
Issue date: 09/12/1988
From:
Public Service Enterprise Group
To:
Shared Package
ML18093B153 List:
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.B.1, TASK-TM GL-83-27, NUDOCS 8809190385
Download: ML18093B154 (4)
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Text

  • REACTOR COO LANT SYSTEM 3/4.4.11 HEAD VENTS LIMITING CONDITION FOR OPERATION 3.4.12 At least one reactor vessel head vent path shall be operable with the vent path closed. A Vent path shall consist of at least two valves in series, powered from vital sources.

APPLICABILITY: MO II:S 1, 2, 3 and 4.

ACTION: With the reactor vessel head vent path inoperable, STARTUP and/or POWER OPERATION may continue provided the inoperable vent path is maintained closed with the valve actuators key locked in the closed position; restore the inoperabJe vent path to OPERABLE status within 30 days, or, be in HOT STANCBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTOOWN 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 4.4.12 Reactor vessel head vent system vent path shall be demonstrated OPERABLE at least once per 18 months by:

1. Verifying all manual isolation valves in each vent path are locked in the open position.
2. Cycling each valve in the vent path through at least one complete cycle of full travel from the control room during COLD SHUTOOWN or refueling.
3. Verifying flow through the Reactor vessel head vent system vent paths during venting.

SA LEM - UN IT 1

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REACTOR. COO LANT SYSTEM BASES The OPERABILITY of two POPs or an RCS vent opening of greater than 3.14 square inches ensures that the RCS will be protected from pressure transients which could exceed the limits of Appendix G to 10 CFR Part 50 when one or more of the RCS cold legs are less than or equal to 312°F. Either POPS has adequate relieving capability to protect the RCS from overpressurization when the transient is limited to either (1) the start of an idle RCP with the secondary water temperature of the steam generator less than or equal to 50°F above the RCS cold leg temperatures, or (2) the start of a safety injection pump and its injection into a water solid RCS.

3/4.4.10 STRUCTURAL INTEGRITY The inspection programs for ASME Code Class 1, 2 and 3 components ensure that the structural integrity of these components will be maintained at an acceptable level throughout the life of the plant. To the extent applicable, the inspection program for these components is in compliance with Section XI of the ASME Boiler and Pressure Vessel Code.

3/4.4.11 THIS SECTION INTENTIONALLY BLANK 3/4 .4.12 REACTOR VESSEL HEAD VENTS Reactor Coolant System vents are provided to exhaust noncondensible gases and/or steam from the Reactor Coolant System that could inhibit natural circulation core cooling. The OPERABILITY of a reactor vessel head vent path ensures the capability exists to perform this function.

The valve redundancy of the Reactor Coolant System vent paths serves to minimize the probability of inadvertant or irreversible actuation while ensuring that a single failure in a vent valve power supply or control system does not prevent isolation of the vent path.

The function, capabilities, and testing requirements of the Reactor Coolant System Vent Systems are consistent with the requirements of Item II.B.l of NUREG-0737, 11 Clarification of TMI Action Plan Requirements, 11 November 1980.

SA LEM - UN IT 1 B 3/4 4-11

REACTOR COO LANT SYSTEM 3/4.4.11 HEAD VENTS LIMITING CONDITION FOR OPERATION 3.4.12 At least one reactor vessel head vent path shall be operable with the vent path closed. A Vent path shall consist of at least two valves in series, powered from vital sources.

APPLICABILITY: MOCES 1, 2, 3 and 4.

ACTION: With the reactor vessel head vent path inoperable, STARTUP and/or POWER OPERATION may continue provided the inoperable vent path is maintained closed with the valve actuators key locked in the closed position; restore the inoperable vent path to OPERABLE status within 30 days, or, be in HOT STANOOY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTOOWN 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 4.4.12 Reactor vessel head vent system vent path shall be demonstrated OPERABLE at least once per 18 months by:

1. Verifying all manual isolation valves in each vent path are locked in the open position.
2. Cycling each valve in the vent path through at least one complete cycle of full travel from the control room during COLD SHUTOOWN or refueling.
3. Verifying flow through the Reactor Vessel Head Vent System vent paths during venting.

SALEM - UNIT 2

REACTOR COO LANT SYSTEM BASES Finally, the composite curves for the heatup rate data and the cooldown rate data are adjusted for possible errors in the pressure and temperature sensing instruments by the values indicated on the respective curves.

Although the pressurizer operates in temperature ranges above those for which_

there is reason for concern of non-ductile failure, operating limits are provided to assure compatibility of operation with the fatigue analysis performed in accordance with ASME Code requirements The OPERABILITY of two POPs or an RCS vent opening of greater than 3.14 square inches ensures that the RCS will be protected from pressure transients which could exceed the limits of Appendix G to 10 CFR Part 50 when one or more of the RCS cold legs are less than or equal to 312°F. Either POPS has adequate relieving capability to protect the RCS from overpressurization when the transient is limited to either {l} the start of an idle RCP with the secondary water temperature of the steam generator less than or equal to 50°F above the RCS cold leg temperatures, or (2) the start of a safety injection pump and its injection into a water solid RCS.

3/4.4.11 STRUCTURAL INTEGR ITV The inservice inspection and testing programs for ASME Code Class 1, 2 and 3 components ensure that the structural integrity and operational readiness of these components will be maintained at an acceptable level throughout the life for the plant. These programs are in accordance with Section XI of the ASME Boiler and Pressure Vessel Code and applicable Addenda as required by 10 CFR Part 50.55a(g) except where specific written relief has been granted by the Commission pursuant to 10 CFR Part 50.55a(g)(6}(i).

3/4.4.12 REACTOR VESSEL HEAD VENTS Reactor Coolant System vents are provided to exhaust noncondensible gases and/or steam from the Reactor Coolant System that could inhibit natural circulation core cooling. The OPERABILITY of a reactor vessel head vent path ensures the capability exists to perform this function.

The valve redundancy of the Reactor Coolant System vent paths serves to minimize the probability of inadvertant or irreversible actuation while ensuring that a single failure vent in a valve power supply or control system does' not prevent isolation of the vent path.

The function, capabilities, and testing requirements of the Reactor Coolant System Vent Systems are consistent with the requirements of 11 Item II.B.1 of NUREG-0737, 11 Clarification of TMI Action Plan Requirements, November 1980.

SA LEM - UN IT 2 B 3/4 4-17

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