ML18054B369
| ML18054B369 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 01/12/1990 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML18054B368 | List: |
| References | |
| GL-83-28, NUDOCS 9001190195 | |
| Download: ML18054B369 (1) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 SAFETY EVALUATION REPORT DOCKET NO. 50-255 PALISADES PLANT GENERIC LETTER 83-28, ITEM 4.5.2 REACTOR TRIP SYSTEM RELIABILITY, ON-LINE TESTING INTRODUCTION AND
SUMMARY
ENCLOSURE 1 Generic Letter 83-28 was issued by NRC on July 8, 1983, indicating actions to be taken by applicants and licensees based on the generic implications of the Salem ATWS events.
Item 4.5 states a staff position which requires en-line functicr1al testing of the reactor trip system, including independent testing of the diverse trip features of the reactor trip breakers. Item 4.5.2 requires applicants and licensees with plants not currently designed to permit this periodic on-line testing to justify not making modifications to permit sud testing.
Ey letter dated February 19, 1985 anc July 1, 1985, Consumers Power Company responded to the staff positicr1 regarding Item 4.5.2 of Generic Letter 83-28.
Our review of these responses finds them tc be acceptable.
EVALUATION Consumers Pm1er Company states that the Pa 1 i sades Plant is designed to allow on-line testing of the reactor.trip system and that the Palisades design uses four independent contactors instead of reactor trip breakers.
Each cf these ccntactcrs can be independently tested at po~1er which meets the requirements of Generic Letter 83-28 Item 4.5.2 for CE plants.
CONCLUSION The staff finds that the Palisades Plant is designed to permit on-line functional testing of the reactor trip system.
The Palisades design permits independent testing of the trip contactors which meets the staff positions of Item 4.5.2 of Generic Letter 83-28.
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