ML20238D901
| ML20238D901 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 12/23/1987 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML20238D893 | List: |
| References | |
| NUDOCS 8801040512 | |
| Download: ML20238D901 (1) | |
Text
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O CONTA]NMENT SYSTEMS CONTA]NMENT PURGE SYSTEMS LIMITING CONDITION FOR OPERATION
- 3. 6.1. 9 Each containment purge supply and exhaust isolation valve shall be OPERABLE and:
a.
Each containment purge supply and/or exhaust isolation valve for the lower compartment and the upper compartment (24-inch), instrument room (12-inch), and the Hydrogen Purge System (4-inch) shall be sealed closed, and b.
The Containment Air Release and Addition System (4-inch) isolation valve (s) may be open for up to 3000 hours0.0347 days <br />0.833 hours <br />0.00496 weeks <br />0.00114 months <br /> during a calendar year for pressure control, for ALARA and respirable air quality considerations for personnel entry *and for surveillance tests that require the valve (s) to be open.
APPLICABILITY:
MODES 1, 2, 3, and 4.
ACTION:
a.
With any containment purge supply and/or exhaust isolation valve for the lower compartment and the upper compartment, or instrument room, or Hydrogen Purge System open or not sealed closed, close and/or seal closed that valve or isolate the penetrations (s) within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, otherwise 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 />.
i b.
With the Containment Air Release and Addition System isolation valve (s) open for more than 3000 hours0.0347 days <br />0.833 hours <br />0.00496 weeks <br />0.00114 months <br /> during a calendar year or for
~ I reasons other than given in 3.6.1.9b. above, close the open valve (s) or isolate the penetration (s) within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, otherwise 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 SHUTOOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
With a containment purge supply and/or exhaust isolation valve (s) c.
having a measured leakage rate in excess of the limits of Specifi-cations 4.6.1.9.3 and/or 4.6.1.9.4, restore the inoperable valve (s) to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, otherwise be in at 1 east 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 l
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 4.6.1.9.1 Each containment purge supply and/or exhaust isolation valves for the lower compartment and the upper containment, or instrument room, or Hydrogen Purge System shall be verified to be sealed closed at least once per 31 days.
4.6.1.9.2 The cumulative time that the Containment Air Release and Addition System has been open during a calendar year shall be determined at least once per 7 days.
CATAWCA - UNITS 1 & 2 3/4 6-16 tmendment No. 36 (Unit 1)
Amendment No. 28 (Unit 2)
SBR 2 188s!8%ho P