ML19319B497
| ML19319B497 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 11/14/1978 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19319B486 | List: |
| References | |
| 50-346-78-26-01, 50-346-78-26-1, NUDOCS 8001220905 | |
| Download: ML19319B497 (1) | |
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4 C
k Appendix A NOTICE OF VIOLATION Toledo Edison Company Docket No. 50-346 Based on the inspection conduct,ed on August 28-31, Septe=ber 27-29, October 31, and November 1, 1978, it appears that one of your activ-ities wao in noncompliance with NRC requirements, as noted below.
This item is an infraction.
Section 3.8.1.1.a of the Technical Specifications requires that two independent circuits between the offsite transmission network and the onsite Class IE distribution system shall be operable when the reactor is in Modes 1, 2, 3 and 4.
FSAR Appendix 3D, Page 3D-15, states that "in the event the main generating unit is lost, station auxiliaries will be transferred automatically by fast bus transfer schemes to the offsite power."
Contrary to the above, two separate circuits between the offsite transmission network and the onsite Class IE distribution syste=
/'"'s were not operable for all allowable operational conditions when
(
the reactor was operated in Modes 1, 2, 3 and 4 during the period August 12, 1977, through October 9, 1978.
Because of a design deficiency, the unit power supply was net capable of being auto-matically transferred to the offsite power sources in the event the main generator is lost, due to conditions other than generator faults, concurrent with or subsequent to the opening of the gener-ator output breckers.
No response to this matter is required since inspectors verified corrective action had been completed prior to completion of the inspection to achieve full compliance and to prevent recurrence.
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