ML20129A746
| ML20129A746 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, McGuire, 05000000 |
| Issue date: | 08/16/1984 |
| From: | Olshinski J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Robert Lewis NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| Shared Package | |
| ML082410334 | List: |
| References | |
| FOIA-85-243, RTR-NUREG-0964, RTR-NUREG-964 NUDOCS 8507270273 | |
| Download: ML20129A746 (1) | |
Text
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5 101 M ARIETTA STREET, N.W.
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Richard C. Lewis, Director Division of Reactor Pro.iects F RT '.
John A. 01shinski, Director Division of Reactor Safety SUEJECT:
SURVEILLANCE REQUIREMENTS FOR CIRCUIT BREAKERS HAVING DIFFERENT AMPERAGE RATINGS (MCGUIRE)
Your memo of July 23, 1984, requested clarification with regard to McGuire Techr.ical Scecification NUREG 0964, Section 4.8.4.1.a.
Specifically, should the.
10*a selection for breaker testing be based o.n a given type of breaker having several different amperage ratings in each voltage range, or should the selection be a specific type of breaker with a specific amperage rating?
McGuire surveillance requirements in Section 4.8.4.1 states, "All containment cenetration conductor over current protective devices shown in Table 3.8-1 shall be demonstrated to be operable," and for the specific area, Section 4.8.4.1.a.(2),
states that at least once every 18 months a representative sample of at least 10* of each type of lower voltage circuit breakers shall be selected and func-tionally tested on a rotating basis.
Per a telephone conversation on August 7, 1984, with J. T. Beard of the Operating Reactors Assessment Branch (0RAB) and D. S. Brinkman of Standardization and Special Projects Branch (SSPB) of NRR, the selection of breakers is to be done on a rotating basis for circuit breakers of each voltage level.
It should be noted that paragraph 4.8.4.1.a.(1) for medium voltage circuit breakers requires this same type of selection.
The above should provide the clarification you requested with regard to low voltage breaker selection.
If we can be of further assistance, please let us
- know, n
e John A. Olshinski cc:
J. T. Beard, ORAS D. S. Brinkman, SSPB CONTACT:
E. Ruff
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