ML18045A352
| ML18045A352 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 07/09/1980 |
| From: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-80-08, IEB-80-8, NUDOCS 8007140310 | |
| Download: ML18045A352 (4) | |
Text
consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201
- Area Code 517 788-0550 July 9, 1980 Mr James G Keppler Office of Inspection and Enforcement Region III U S Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255 - LICENSE DPR PALISADES PLANT - RESPONSE TO IE BULLETIN 80 EXAMINATION OF CONTAINMENT LINER PENETRATION WELDS Consumers Power Company's response to IE Bulletin 80-08, Examination of Containment Liner Penetration Welds dated April 7, 1980, is as follows:
Item 1 Determine if your facility contains the flued head design for penetration connec-tions, or other designs with containment boundary butt weld(s) between the penetra-tion.sleeve and process piping as illustrated in Figure NE 1120-1, Winter, 1975, Addenda to the 1974 and later editions of the ASME B&DV Code.
Response to Item 1 The Palisades Plant contains the following types of mechanical penetrations as described above.
A.
Total Penetrations:
73 B.
Flued Head Design Penetrations:
39 (Type III)
Ao01
- c.
Butt Welded (other than flued):
27 (Type IV, V, VI)
D.
Miscellaneous 7
.s (Embedded, Personnel/Equipment 1/;
Emergency Access, Fuel Transfer)
Item 2 If an affirmative answer is reached for Item 1, determine the following:
A.
Applicability of the ASME Code including year and addenda and/or Regulatory Guide 1.19, 80 0 7140 J/O i
J
Response to IE Bulletin 80-08 July 9, 1980 B.
Type of nondestructive examinations performed during construction, C.
Type of weld joint (including pipe material and size) and whether or not backing bars were used, 2
D.
Results of construction nondestructive examinations, ie, if repairs were required, this should be identified including extent of repairs and descrip-tion of defects encountered during repair, if known.
Response to Item 2 A.
The containment structure at the Palisades Plant is not a Code Vessel; there-fore,Section III of the Code does not apply.
The penetrations were designed, fabricated, and inspected per ASME Section III, Subsection B, 1968, Edition per the Palisades FSAR, paragraph 5.1.2.
Regulatory Guide 1.19 was not in effect during the design and construction of the Palisades Plant and does not impact the design/inspection of the penetra-tions.
B.
Penetration sleeve-to-penetration cap/head welds were inspected with either dye penetrant or magentic particle as per Bechtel Drawing M-249, Sheet 5 of 5.
C.
See Attachment 1.
D.
There are no records of repairs made to these welds.
Item 3 For those facilities committed during construction to perform volumetric examina-tion of such penetrations through SAR commitments which have not performed radio-graphy, justify not performing radiography or submit plans and schedules for per-forming radiographic examinations.
Response to Item 3 The Palisades Plant has no commitment to perform radiographic examination of the subject welds.
David P Hoffman (Signed)
David P Hoffman Nuclear Licensing Administrator CC Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement NRC Resident Inspector - Palisades Director, Division of Reactor Construction Inspection -
2 pages
/
- (cont'd) 2 Table of Penetrations Penetration No.
Penetration Type Pipe Size Material Backing Bar 51 Equipment Door 12 1-0 11 CS/CS No 52 Embedded 4
SS/SS No 53 Embedded 24 SS/SS No 54 Embedded 24 SS/SS No 55 III 2"
CS/CS Yes 56 v
CS/CS Yes 57 v
CS/CS Yes 58 v
CS/CS Yes 59 v
CS/CS Yes 60 v
CS/CS Yes 61 v
CS/CS Yes 62 v
CS/CS Yes 63 IV
~II CS/CS Yes 64 III 6"
CS/SS Yes 65 III 2"
CS/CS Yes 66 IV 3"
CS/CS Yes 67 III 3"
CS/SS Yes 68 III 12 11 CS/CS Yes 69 III 4"
CS/SS Yes 70 v
CS/CS Yes 71 v
CS/CS Yes 72 III 8"
CS/SS Yes 73 IV l~"
CS/CS Yes
- Penetrations noted above which have no pipe size listed are spare penetrations.