ML20049H519
| ML20049H519 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 01/28/1982 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20049H520 | List: |
| References | |
| NUDOCS 8203030249 | |
| Download: ML20049H519 (1) | |
Text
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TS.3.4-2
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2 For Unit 1 operation motor operated valves MV32242 and MV32243 e.
shall have valve position monitor lights operable and shall be locked in the open position by having the motor control center supply breakers manually locked open. For Unit 2, corresponding valve conditions shall exist.
f.
Essential features including system piping, valves, and inter-locks directly associated with the above components are operable.
g.
Manual valves in the above systems that could (if one is in-properly positioned) reduce flow below that assumea for accident analysis shall be locked in the proper position for emergency use.
During power operation, changes in valve position will be under i
direct administrative control.
3.
Steam Exclusion System Both isolation dampers in each ventilation duct that penetrates rooms containing equipment required for a high energy line rupture outside of containment shall be operable or one damper in each duct with an inoperable isolation damper shall be closed.
4.
Radiochemis try The specific activity of the secondary coolant system for that reactor shall be < 0.10 uC1/gm DOSE EQUIVALENT I-131.
B.
If, during startup operation or power operation, any of the conditions of Specification 3.4. A., except as noted below for 2.a 2.b or 4 cannot be l
met, startup operations shall be discontinued and if operability cannot be restored within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, the affected reactor shall be placed in the cold shutdown condition using normal operating procedures.
With regard to Specifications 2.a or 2.b, if a turbine driven AFW pump is not operable, that AFW pump shall be restored 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 the affected reactor shall be cooled to less than 350*F within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
If a motor driven AFW pump is not operable, that AFW puup shall be restored 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 one unit shall be cooled to less than 350*F within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
l If 4. is not met, the affected reactor shall be placed in hot standby within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and cold shutdown within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
Basis 1
A reactor shutdown from power requires' removal of decay heat. Decay heat removal requirements are normally satisfied by the steam bypass to the condenser and by continued feedwater flow to the steam generators. Normal feedwater flow to the steam generators is provided by operation of the turbine-cycle feedwater system.
Prairie Island Unit 1 - Amendment No. 17, 46, 52, 53 Prairie Island Unit 2 - Amendment No. 11, 40, 46, 47 92O3030249 820128 PDR ADOCK 05000282 P
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