ML20235U290
| ML20235U290 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 03/03/1989 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20235U292 | List: |
| References | |
| NUDOCS 8903090129 | |
| Download: ML20235U290 (1) | |
Text
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s
. CONTAINMENT SYSTEMS I
SURVEILLANCE REQUIREMENTS (Continued) e.
The combined bypass leakage rate to the auxiliary building shall be determined to be less than or equal to 0.25 L, by applicable Type B and C tests at least once per 24 months except for penetrations which are not individually testable; penetrations not individually testable shall be determined to have no detectable leakage when tested with soap bubbles while the containment is pressurized to P, (12 psig) during.each Type A test.
f.
Air locks shall be tested and demonstrated OPERABLE per Surveillance Requirement 4.6.1.3.
g.
Leakage from isolation valves that are sealed with fluid from a seal system may be excluded, subject to the provisions of Appendix J,Section III.C.3, when determining the combined leakage rate provided the seal system and valves are pressurized to at least 1.10 P, (13.2 psig) and the seal system capacity is adequate to maintain system pressure (or fluid head for the containment spray system and RHR spray system valves at penetrations 48A, 48B,.49A and 49B) for at least 30 days.
h.
Type B tests for penetrations employing a continuous leakage monitoring system shall be conducted at Pa (12 psig) at intervals no greater than once per 3 years.
i.
- All test leakage rates shall be calculated using observed data converted to absolute values.
Error analyses shall be performed to select a balanced integrated leakage measurerrent system.
J.
The provisions of Specification 4.0.2 are not applicable.
e903090129 890303 PDR ADOCK 05000327 P
PDC SEQUOYAH - UNIT 1 3/4 6-4 Amendment No.12, 7L 102 A