ML18283B086
| ML18283B086 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 06/02/1975 |
| From: | Purple R Office of Nuclear Reactor Regulation |
| To: | Watson J Tennessee Valley Archaeological Research |
| References | |
| Download: ML18283B086 (4) | |
Text
JUN 2 ]975 Docket icos. 50.-259-g and 50-26M Tennessee Valley Authority ATTN: *14@. James H. Watson Hanagor of Power 818 Power Building Chattanooga, Tonnosseo 37201 I
Gentlomen:
/
Ãe havo x'eviowed Section VI.C of tho,"Plan for Evaluation, Repair, and Roturn to Service of Browns Forry Units 1 and 2" and have tho following comments:
l.
The materials removed should be oxamined, metallurgically and otherwiso, to provide as, much information as practicable about the peak temperatures reached as a function of location throughout tho affectod area.
2.
During romoval of wires whose insulation has boon burned off, any conductors with signs of welding or axcing should be noted, to-gethor with any available ovidenco as to the other end of tho arc.
3.
Since the procedures aro written largely in torms of, open trays, conduits and cablos in conduits should be txeatod with tho same caro regarding noting and preserving ovidence embodiod in them as is specified for trays and caMps in trays.
4.
Adequate samples of unburned cables in tho trays are needed for NRC flammability studios.
At least one samplo, a 12-foot single length, should be provided for each manufacturer,
- type, and sixe of cablo that is removed as fire-damaged.
Unburned material from tho trays is needed, xather than nominally similar material unused on reols.
1 5.
The possibility should be loft open for futuro inspection by NRC staff and consultants of materials removed and preserved.
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JUN 2 t97S Your written concurrence with those requirements is necessary prior to our issuance of the intorim technical specifications related to fuel removal, fuel storage, and plant restoration.
Nith your concurrence in the above requixements and tho fulfillment of the comitments given in Section VI,C of the Plan; we conclude that the mm6anaa practicable amount of evidence will be obtained and preserved.
Sincerely, OPIJpna! ~gn bye
~bc@( A.puryle Robert A. Purple, Chief Operating Reactors Branch 81 Division of Reactox Licensing cc:
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