ML13310B330
| ML13310B330 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 04/12/1984 |
| From: | Southern California Edison Co |
| To: | |
| Shared Package | |
| ML13310B328 | List: |
| References | |
| NUDOCS 8404170204 | |
| Download: ML13310B330 (1) | |
Text
Enclosure Section 4.3.1.11 will be revised as follows:
II. Containment Penetration Leakage Rate Tests (Type B)
A. Test Pressure Type B tests are conducted at a test pressure at or above 49.4 psig. In addition, the personnel airlocks are tested every six months at or above 49.4 psig. A lower pressure test, approximately 10 psig, will be used to test the personnel airlocks within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> following an opening, except when the airlock is being used for multiple entries, then at least once per 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
B. Acceptance Criteria The combined leakage rate of all penetrations subject to Type B tests and all containment isolation valves subject to Type C tests is less than 0.072 wt%/24 hours of the initial content of the containment atmosphere at the calculated peak pressure of 49.4 psig.
In conducting the overall airlock leakage rate test at 49.4 psig, the leakage shall be less than 0.05 wt%/24 hours. In conducting the overall airlock leakage rate test at 10 psig, the leakage rate shall be less than 0.025 wt%/24 hours.
C. Test Schedule Type B tests, except for airlocks, are performed during every reactor shutdown for refueling, or other convenient intervals, but in no case at intervals greater than two years.
Airlock volumes between the doors are tested:
(1) at least every six months and (2) within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> following each opening, except when the airlock is being used for multiple entries, then at least once per 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
Section 4.3.1.II.C will be revised as follows:
II. Containment Isolation Valve Leakage Rate Tests (Type C)
C. Test Pressure Type C tests are performed during each reactor shutdown for refueling, or other convenient intervals, but in no case at intervals greater than two years.
Seal tests conducted on active containment ventilation isolation valves shall be performed every three months.
Seal tests conducted on passive containment ventilation isolation valves shall be performed every six months.
MJT:0879F 8404170204 840412 PDR ADOCK, 05000206 P -PDR