ML20245L448
| ML20245L448 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 06/28/1989 |
| From: | DUKE POWER CO. |
| To: | |
| Shared Package | |
| ML20245L446 | List: |
| References | |
| NUDOCS 8907050500 | |
| Download: ML20245L448 (1) | |
Text
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~PIENTSYSTEMS STEAM GENERATOR FOWER OPERATED RELIEF VALVES.
LIMITING' CONDITION FOR OPERATION l'
3.7.1.6 Three steam generator. power-operated relief valves (PORVs) and associated remote manual controls, including the safety-related gas supply systems,.shall
'be OPERABLE.
APPLICABILITY: MODES 1, 2, 3, and 4.*
ACTION:
a.
With one less than the required steam generator PORVs OPERABLE, restore the inoperable. steam generator PORV to OPERABLE status within 7 days; 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 HOT' SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and place the required Residual Heat Removal loop in operation for decay heat removal.
i b.
With two less than the required steam generator PORVs OPERABLE, restore at least one of the inoperable steam generator PORVs 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 HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> =and place the required Residual Heat Removal loop in operation for decay heat removal.
SURVEILLANCE REQUIREMENTS 4.7.1.6 Each ste.un generator PORV and associated remote manual l
controls including the safety-related gas supply systems shall be demonstrated OPERABLE:
At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by verifying that at a.
least one of the two nitrogen bottles associated with each PORV has a pressure greater than or equal to 2100 psig, and b.
At least once per 18 months and prior to ctartup following any refueling shutdown by verifying that all steam generator PORVs will operate through one i
cycle of full travel using remote manual controls and safety-related gas supply.
- When steam generators are being used for decay heat removal.
CATAWBA - Units 1 & 2 3/4 7-9a 8907050500 890628 PDR ADOCK 05000413 l
P PNU
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