ML19211A508
| ML19211A508 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 12/12/1979 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Peoples D COMMONWEALTH EDISON CO. |
| References | |
| NUDOCS 7912200041 | |
| Download: ML19211A508 (2) | |
Text
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5)ECUxt;,
.,y Docket No. 50-295 cmi 50-304 Mr. D. Louis Peoples Director of Nuclear Licensing Connonwealth Edison Company Post Office Fox 767 Chicago, Illinois 60690
Dear Mr. Peoples:
You are requested to provide the information specified in the enclosure to this letter regarding auxiliary feedwater systen autonatic initiations and flow indications to the stean generators for your facilities.
A copy of the enclosure was telecopied to you on December 10, 1979.
Receipt of your response is requested by Decenber 14, 1979.
Si ncerely,
/S/
A. Schwencer, Chief Operating Reactors Branch #1 Division of Operating Reactors
Enclosure:
Request for Information Distribution 632 006 (NRC PDR ORB #1~ eading NRR Reading A. Schwencer C. Parrish E. Reeves M. Grotenhuis Attorney, OELD OI&E (3)
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1 912200C)dfl
LICENSEE INFOR'% TION REQ'JIRED FOR STAFF EVALUATIO:s 0F LICENSEE RESPONSE OF LESSONS LEARGED REC 0K4ENDATIONS 2.1.7a and b 1.
2.1 7a AFW System Automatic Initiation We require that the licensee provide information that describes how the AFW automatic initiation system design meets each of the control grade functional criteria in U IREG 0578 (2.1.7a) and the clarifications to NUREG-0578 in the October 30 1979 NRC (H. Denton) letter to all operating plants.
Tne infomation should be sufficiently descriptive.to permit independent technical review of the information and a conclus Sn that each of the criteria are met.
To demonstrate conformance with criteria 1, 2, 5 and 7, specific descriptive information (reference to specific FSAR sections is acceptable) supported by electrical d_rawinas, such as schematic or elementary wiring diagrams, a
should be submitted.
For power supply criteria 4 and 6, the licensee should submit a table or a detailed power distribution one-line diagram indicating power supply channels for each component.
To demonstrate testability criterion 3, the licensee should submit a summary description of the functional test procedures along with the existing or proposed test interval - (e.g., Standard Technical Specification surveillance requirements for typical engineered safety feature systems).
2.
2.1.7b AFi! System Flow Indication to Steam Generators We require information of a similar nature to that described in 2.1.7a above to demonstrate conformance with tha 2.1.7b criteria and clarifications to NUREG-0578 in the October 30, 1979 NRC (H. Denton) letter to all operating plants; namely, sincle failure, testability, power supply and indication accuracy.
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