ML17331A221
| ML17331A221 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs, Cook  |
| Issue date: | 07/09/1980 |
| From: | Maloney G INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| AEP:NRC:0400, AEP:NRC:400, IEB-80-08, IEB-80-8, NUDOCS 8007250016 | |
| Download: ML17331A221 (3) | |
Text
INDIANA L MICHIGAN ELECTRIC COMPANY P. O. BOX 18 BOWLING GREEN STATION NEW YORK, N. Y. 10004 Donald C.
Cook Nuclear Plant Units 1 and 2
Docket Nos.
50-316;50-317 License Nos.
DPR-58 and DPR-74 July 9, 1980 AEP:NRC:0400 Mr. James G. Keppler, Regional Director U.,S. Nuclear Regulatory Commission Office of the Inspection and Enforcement Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Ref:
NRC IE Bulletin 80-08 Examination of Containment Liner Penetration Welds.
Dear Mr. Keppler:
The attachment to. this letter responds to the above referenced bulletin on Examination of Containment Liner Penetration Welds at Donald C.
Cook Nuclear Plant Units 1 and 2.
This information applies to all containment penetrations at the plant that connect to process piping.
Very truly yours, G.
P.
Mal ne Vice Pr ide t CC:
R.
C. Callen G. Charnoff R: S. Hunter R.
W. Jurgensen D. V. Shaller - Bridgman J.
E. Dolan
ATTACHMENT T0 AEP:NRC:0400 1
The responses are provided to the corresponding items as cited in the bulletin.
Item 1:
Units 1 and 2 of the Donald C.
Cook Nuclear Plant contain flued head design for containment penetration connections as illustrated in figure NE-1120-1, Minter 1975 Addenda of the ASME 8 8 P.V.
Code.
Item 2:
2a)
The containment penetrations at Donald C.
Cook Nuclear Plant were designed as per ANSI 831.1, 1967 code and fabricated/in-stalled as per ASME Section III B 5 P.V. code, 1958 Edition.
2b)
All butt welds, described in IE Bulletin 80-08 were inspected during construction using radiographic examinations.
2c)
Single vee-butt welds were used to attach the flued head to the outer sleeve of the containment penetrations.
These welds were made in the fabricators'hop and the penetrations were shipped to the plant site as an assembly.
No backing bars were used in the sield fabrication.
2d)
Radiographic testing of the welds was done as per the acceptance standards of the ASME code,Section III.
Any repairs which had to be performed on the shop welds identified in the bulletin, were made in accordance with ASME Section III, 1968 Edition.
Iteii> 3:
Since all the examinations conducted on the subject weld were by radiographic examination, this. item is not applicable to Donald C.
Cook Nuclear Plant.