ML051520344
| ML051520344 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 05/31/2005 |
| From: | NRC/NRR/DLPM |
| To: | |
| References | |
| TAC MC4743 | |
| Download: ML051520344 (2) | |
Text
CONTAINMENT SYSTEMS 3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS CONTAINMENT QUENCH SPRAY SYSTEM LIMITING CONDITION FOR OPERATION 3.6.2.1 Two independent Containment Quench Spray subsystems shall be OPERABLE.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTION:
With one Containment Quench Spray subsystem inoperable, restore the inoperable system 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 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 />.
SURVEILLANCE REQUIREMENTS 4.6.2.1 Each Containment Quench Spray subsystem shall be demonstrated OPERABLE:
- a.
At least once per 31 days, by:
- 1)
Verifying that each valve (manual, power operated, or automatic) in the flow path that is not locked, sealed, or otherwise secured in position, is in its correct position; and
- 2)
Verifying the temperature of the borated water in the refueling water storage tank is between 40'F and 500 F.
- b.
By verifying that each pump's developed head at the test flow point is greater than or equal to the required developed head when tested pursuant to Specification 4.0.5;
- c.
At least once per 24 months, by:
- 1)
Verifying that each automatic valve in the flow path actuates to its correct position on a CDA test signal, and
- 2)
Verifying that each spray pump starts automatically on a CDA test signal.
- d.
By verifying each spray nozzle is unobstructed following maintenance that could cause nozzle blockage.
MILLSTONE - UNIT 3 3/4 6-12 Amendment No. &, 0, 400, 42I, 45-$,
474,206, 222
CONTAINMENT SYSTEMS RECIRCULATION SPRAY SYSTEM LIMITING CONDITION FOR OPERATION 3.6.2.2 Two independent Recirculation Spray Systems shall be OPERABLE.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTION:
With one Recirculation Spray System inoperable, restore the inoperable system 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 />; restore the inoperable Recirculation Spray System to OPERABLE status within the next 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in 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 />.
SURVEILLANCE REQUIREMENTS 4.6.2.2 Each Recirculation Spray System shall be demonstrated OPERABLE:
- a.
At least once per 31 days by verifying that each valve (manual, power-operated, or automatic) in the flow path that is not locked, sealed, or otherwise secured in position, is in its correct position;
- b.
By verifying that each pump's developed head at the test flow point is greater than or equal to the required developed head when tested pursuant to Specification 4.0.5; C.
At least once per 24 months by verifying that on a CDA test signal, each recirculation spray pump starts automatically after a 660 L20 second delay;
- d.
At least once per 24 months, by verifying that each automatic valve in the flow path actuates to its correct position on a CDA test signal; and
- e.
By verifying each spray nozzle is unobstructed following maintenance that could cause nozzle blockage.
I MILLSTONE - UNIT 3 3/4 6-13 Amendment No. 60, 40I, 4i, 14, 177,,
222