ML20215A196
| ML20215A196 | |
| Person / Time | |
|---|---|
| Site: | Hatch  |
| Issue date: | 06/09/1987 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML20215A198 | List: |
| References | |
| NUDOCS 8706160555 | |
| Download: ML20215A196 (1) | |
Text
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LIMITING CON 0!TIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 3.6.H.1.
Re11ef/ Safety Valves 4.6.H.1.
Relief / Safety Valves a.
When one or more relief / safety a.
End of Ocerating Cvele valve (s) is known to be failed an orderly shutdown shall be initiated Approximately one-half of all and the reactor depressurized to relief / safety valves shall be less than 113 psig within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, benchchecked or replaced with Prior to reactor startup from a a benchchecked valve each re-cold condition all relief / safety fueling outage. All 11 valves l
valves shall be operable. **
will have been checked or re-placed upon the completion of every second operating cycle, b.
With one or more relief / safety b.
Each Operatino Cycle valve (s) stuck open, place the reactor mode switch in the shutdown position.
Once during each operating cycle, at a reactor pressure
> 100 psig each relief valve shall be manually opened until thermocouples downstream of the valve indicate steam is flow-ing from the valve, c.
With one or more safety / relief valve c.
Intearity of Relief Valve tailpipe pressure switches of a Bellows
- safety / relief valve declared inoperable and the associated The integrity of the relief valve safety / relief valve (s) otherwise bellows shall be continuously indicated to be open, place the monitored and the pressure raactor mode switch in the Shut-switch calibrated once per down position, operating cycle and the accu-mulators and air piping shall be inspected for leakage once per operating cycle, d.
With one safety / relief valve tailpipe d.
Relief Valve Maintenance pressure switch of a safety / relief valve declared inoperable and the asso-At least one relief valve shall ciated safety / relief valve (s) otherwise be disassembled and inspected indicated to be closed, plant operation each operating cycle.
may continue. Remove the function of that pressure switch from the low low e.
Operability of Tail Pioe set logic circuitry until the next COLD Pressure Switches SHUTOOWN. Upon COLD SHUTOOWN, restore the pressure switch (es) to OPERA 8LE The tail pipe pressure switch status before STARTUP.
of each relief / safety valve shall be demonstrated operable e.
With both safety / relief valve tailpipe by performance of a:
pressure switches of a safety / relief valve declared inoperable and the asso-1.
Functional Test ciated safety / relief valve (s) otherwise indicated to be closed, restore at least a.
At least once per 31 one inoperable switch to OPERABLE status days, except that all within 14 days or be in at least HOT portions of instrumen-SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> tation inside the pri-and in COLD SHUT 00WN within the mary containment may be following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, excluded from the functional test, and
- 0:es not apply to two-stage Target Rock SRVs C0The Relief / Safety valves are not required to be operable for performance of inservice hydrostatic or pressure testing with reactor pressure greater than 113 psig and all control rods inserted. Overpressure protection will be provided as required by ASME Code.
HATCH - UNIT 1 3.6-9 Amendment No. 137 Correction 0706160555 070609 PDR ADOCK 05000321 p
PDH
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