ML13309B354
| ML13309B354 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 10/31/1983 |
| From: | SOUTHERN CALIFORNIA EDISON CO. |
| To: | |
| Shared Package | |
| ML13309B353 | List: |
| References | |
| PROC-831031-01, NUDOCS 8311020171 | |
| Download: ML13309B354 (2) | |
Text
INSERVICE TESTING PLAN REVISION 6 SAN ONOFRE NUCLEAR GENERATING STATION UNIT 2 SOUTHERN CALIFORNIA EDISON COMPANY October 1983 6311020171 831031 PDR ADOCK 05000361 p
VALVE RELIEF REQUEST NO. 22 SYSTEM:
Containment Spray COMPONENT: 2-054-C-611 2-069-C-611 CATEGORY:
C CLASS:
2 FUNCTION:
These check valves are in the Spray Chemical Addition Pumps mini-flow lines back to the Spray Chemical Storage Tank. The check valves are required to open to prevent overheating the Spray Chemical Addition Pumps.
TEST REQUIREMENT:Exercise valves in the open direction every three months.
BASIS FOR RELIEF: There is no adequate method for verifying that the check valves are open when tested. The lines in the Spray Chemical Addition System are heat traced which prevents monitoring an increase in temperature, and there are no pressure or flow indicators on the mini-flow lines.
ALTERNATE TESTING:
The check valves will be disassembled and hand stroked during refueling outages.
9484N