ML20003B663
| ML20003B663 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 02/17/1981 |
| From: | Tramm T COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8102250115 | |
| Download: ML20003B663 (3) | |
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February 17, 1981 Mr. James G. Keppler, Director Directorate of Inspection and Enforcement - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137
Subject:
Byron Station Units 1 and 2 i
Cable Installation Oeficiency Report NRC Docket Nos. 50-454 and 50-455
Dear Mr. Keppler:
On January 16, 1981, Commonwealth Edison Company notifi'ed Mr. J. E. Konklin of your of fice tnat certain electrica1 installation activities at Byron appeared to involve deficiencies reportable pursuant to 10 CFR 50.55(e).
This letter fulfills the
~
thirty-day reporting requirement of 50.55(e) regarding that item.
Description of the Deficiency NRC Region III inspectors have pointed out that the QA/QC procedures, checklists, and surveillances presently used at Byron by Hatfield Electric and Commonwealth Edison are not adequate to assure proper cab _a installation.
Analysis of Safety Implications Installation of cables according to those proceoures did not provide acequate assurance that Class IE caules were installed according to the established cesign criteria.
Corrective Action Thirty-two Hatfield Electric procedures have been revised to include and Clarify items within those procedures that are required to ensure that Class IE safety-related cable installation will be done.in accoroance with established QA and engineering criteria.
A list of the procedures that were revised is includeo g/p here as Attachment 1.
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8102250h6 5
M 1 These revised Hatfield Electric procedures were reviewed by NRC Region III inspectors on January 29, 1981, and were found to be adequate.
In addition, Commonwealth Edison QA procedure QP 15-1 has been revised and was found to be adequate by Region III inspectors.
Please address any questions that you have regarding this matter to my office.
Very truly yours, Y{2, fA&c^=
T. R. Tramm Nuclear Licensing Administrator Pressurized Water Reactors Attachment cc:
Director of Inspection and Enforcement
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Revised Hatfield Electric Company Procedures Procedure Rev.
Issue Title 1
4 1
Method of Preparing Procedures 2
6 1
Installation of Class I Embedded Conduit 3
5 1
Installation of Class I Underground Duct Runs 4
6 1
Orawing Control 5
4 1
Class I Material and Equipment Receiving and Inspection 6
4 1
Reporting of Damaged or Nonconforming Material or Equipment 7
7 2
Electrical Design Change 9A 9
1 Class I Cable Pan Hanger Installation 98 6
1 Class I Cable Pan Installation 9E 6
1 Class I Cable Pan Identification 10 8
1 Class I Cable Installation 11 6
1 Class I Cable Termination and Splicing 12 5
1 Installation of Class IE Equipment 12A 2
1 Modification of Class IE Equipment 128 2
1 Installation of Diesel Generater 1200A Class IE Non-segregated Pnase Bus 13C 2
1 Class I Cadweld Procedures 13AA-2 1
Class I Shielded Metal Arc Field Welding (AWS Prequalified) 13AB-2 1
Class I Shielded Metal Arc Field Welding (Qualified by. Test)-
13AC 1
1 Qualification of Welders 13AD 2
1 Arc Welding Electrode Control 13AE 2
1 Class I Visual Weld Examination Procedure 14 5:
1 Handling and Storage of Safety Related Material and Equipment
- 16 5
1 Cable Storage and Handling 19 4
1 Equipment Turnover Reporting 20 5
1 Class I. Exposed Conduit System Installation 23 8
1 Concrete Expansion Anchor Installation 25 1
1 Class I Installation of A 325 Bolts 26 3
.1 Steel Stud Welding 27' 2
1 Replacement of Gaskets on NAMCo EA-180 Limit Switches 28 1
1 Removal of Heat Shrink Tubing on Conax Penetration Assemblies-29 3
1 Field Initiated Request for Design Changes 30 3
1 Class I Cable Exposed to Construction Activities
.