ML17318A538
| ML17318A538 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 12/11/1979 |
| From: | Dolan J INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-79-02, IEB-79-2, NUDOCS 8001080280 | |
| Download: ML17318A538 (3) | |
Text
INDIANA lk MICHIGAN ELECTRIC COMPANY P. 0.
BOX 18 BOWLING GREEN STATION NEW YORK, N.Y. 10004 December ll, 1979 AEP:NRC:00162I Donald CD Cook Nuclear Plant Units 1 and 2
Docket Nos
~ 50-315 and 50-316 License Nos
~
G ~ Keppler, Regional Director U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Region III 799 Roosevelt Road Glen Ellyn,IL.
60137
References:
Dear ter.
Keppler:
(1)
IE Bulletin 79-02 Pipe Support Base Plate Designs Using Concrete Expansion Anchor Bolts, Dated 3/8/79; Revision 2, Dated ll/8/79 (2)
Submital No. AEP:NRC:00162, Dated July ll, 1979 (3)
Submittal No. AEP:NRC:00162G, Dated August ll, 1979 (4)
Submittal No.AEP:NRC:00162H, Dated September 19,1979 We are in the final stages of completing the plant specific analysis to conform to the criteria as stated in IE Bulletin 79-02, Revision 1
~
As such this letter responds only to those items specific to Revision 2
in the bulletin.
We will be submitting our final response to the above bulletin in the near future.
The following responses correspond to the items listed in the bulletin.
Item 2:
Our evaluation of the anchor bolts for pipe supports is based on the factor of safety as stated in the bulletin, i.e., four for wedge type and five for shell type.
These factors of safety are for the maximum support loads including SSE
~
Mr. O'.G. Keppler, Regional Director AEP:NRC:00162I Item 5:
At Donald C.
Cook Units 1 and 2, the pipe support base plates are not attached to concrete block walls and as such, concrete expansion anchor bolts are not installed in. concrete block walls.
Item 6:
We have a small number of pipe supports attached to concrete walls with expansion anchor bolts using structural steel shapes instead of base plates.
All the systems and lines with these kind of supports were reviewed to be consistent with the criteria of IE Bulletin No. 79-02, Revision l.
A summary of the evaluation will be submitted in the final response.
Item 7:
The expansion anchor bolt testing for Donald C.
Cook Unit 1 is complete and for Unit No.
2 is in the final stages of completion.
The computerized results of the bolt testing program are available at the Plant for NRC inspection.
The Plant specific analysis is complete for Unit No.
2 and the resultant modifications are being implemented in the Plant.
The
'lant specific analysis for Unit No.
1 is in progress and is ex-pected to be completed by February 1, 1980.
We plan to complete the resulting field modifications for Unit No.
1 during the refueling outage in May 1980.
This is as per the schedule we submitted to your office in Attachment 5 of Reference 2.
The details of the plant specific analysis and the field modifications for both units will be submitted to your office in the final response.
Very truly yours, JED:em ohn E. Dolan Vice President cc:
R.
C.
Cal 1 en G. Charnoff D. V. Shaller-Bridgman R.
S.
Hunter R.
W. Jurgensen
Mr. J.
G. Keppler, Regional Director AEP:NRC:00162I bc:
S. J; Milioti/J. I. Castresana/T..
Satyan G.
P. Field/H. L. Sinclair/H. Alexander H. N..Scherer, Jr.
R.
F. Hering/S.
H. Steinhart J.
R. Struyk/W.
W. Stelle/F.
Accetta/G.
Paleos R.
F. Kroeger J.
F. Stietzel-Bridgman D. Wigginton-NRC Cook Plant NRC Resident Inspector DC-N-6015.3.1 AEP:NRC:00162I