ML20030D471

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Forwards Revised Vols I,Ia & Vi,In Response to component- Specific Open Items in Safety Evaluation Re Environ Qualification of Electrical Equipment.W/O Encl
ML20030D471
Person / Time
Site: Crane 
Issue date: 08/28/1981
From: Hukill H
METROPOLITAN EDISON CO.
To: Stolz J
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0680, RTR-NUREG-0737, RTR-NUREG-680, RTR-NUREG-737, TASK-2.B.2, TASK-TM IEB-79-01B, IEB-79-1B, IEC-81-06, IEC-81-6, L1L-238, NUDOCS 8109010432
Download: ML20030D471 (1)


Text

Metropolitan Edison Company T

J Post Office Box 480

-.L Middletown, Pennsylvania 17057 Writer's Direct Dial Number August 28, 1981 LlL 238 Office of Nuclear Reactor Regulation Attn: John F. Stolz, Chief Operating Reactors Branch No. 4 U. S. Nuclear Regulatory Commission Washington, D.C.

20555

Dear Sir:

Three Mile Island Nuclear Station, Unit 1 (TMI-1)

Operating License No. DPR-50 Docket No. 50-289 Environmental Qualification of Electrical Equipment (Response to NRC Staff SER)

Enclosed are revised copies of Volumes I, IA, and VI which contain information in response to the component specific open items contained in the SER.

Volume I and Volume IA also contain new sections which provide a master list of dis-play instrumentation for hot and c

.d shutdm o respectively, as required in paragraph 3.1 of the SER.

This submittal completes our response to the SER except for a few instances where we are v2iting for vendor information. The component work sheets indicate which items require vendor information. As a significant amount of vendor information is received we will periodically update the appropriate work sheets as part of our ongoing response to IE Bulletin 79-01B.

It should be noted that 29 components in the Auxillary Building are no longer considered to be in a harsh environment due to radiation. The basis for this is the revised, lower doses calculated per NUREG 0737 item II.B.2, as docu-mented in iSe Restart Report section 2.1.2.3, and accepted in NUREG 0680 supplement 3.

Finally, as noted in our letter dated May 18,1981 (LlL 161), TMI-l does not use the 10-50 ma type transmitters identified by IE Circular 81-06.

Sincerely, 8109010432 810828 D. ilukill PDR ADOCK 05000289' P

PDR Director, TMI-l HDH: CWS:vj f Enclosure cc:

R..Jacobs (Attachment sent separately)

B. H. Grier (w/o attachment)

Metropohtan Edison Company is a Member of the General Pubhc Utihties System