ML20086N163

Final Part 21 Rept Re Cable Separations in Control Room Panels.Separate Insps for Other Facilities Scheduled Prior to Fuel Load to Identify & Correct Cabling Separation Not in Compliance W/Spec 13-EM-306

ML20086N163
Person / Time
Site:	Palo Verde
Issue date:	10/05/1983
From:	Randy Patterson BECHTEL GROUP, INC.
To:	Jay Collins NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
REF-PT21-83-112-000 PT21-83-112, PT21-83-112-000, NUDOCS 8402170263
Download: ML20086N163 (3)

Text

- w Bechtel Power Corporation l Engineers - Constructors l 12400 East Imperial Highway Norwalk, California 90650 BO TERM ANNEX. LOS ANGELE% CALFORNIA 90060 October 5, 1983

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OCT I 21983 Mr. J. T. Collins i Regional Administrator, Region IV L W Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76012

Subject:

10 CFR 21 Report - Noncompliance Relating to Cable Separations in Control Room Panels Palo Verde Nuclear Generating Station, Unit 1

Dear Mr. Collins:

The enclosed attachment titled Final Report is being transmitted to you under 10 CFR 21 requirements.

We trust that this final report will prove satisfactory.

Very truly yours, BECHTEL POWER CORPORATION R. L. Patterson Division Quality Assurance Manager l Los Angeles Power Division i

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! 8402170263 831005

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1 i FINAL REPORT.0N SUBSTANTIAL SAFETY HAZARD DEFECT REGARDING CABLE SEPARATIONS IN CONTROL ROOM PANELS e

Palo Verde Nuclear Generating Station Unit 1 ,

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, Reporting Date: October 5,1983 i

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1.0 INTRODUCTION

This report is submitted to satisfy requirements of 10 CFR 21 and describes actions taken to correct noncompliances regarding cable separations .in Palo Verde Unit I control panels turned over to Arizona Public Service.

2.0 INDIVIDUAL REPORTING R. L. Patterson, Manager of Division Quality Assurance, .Bechtel Power ,

Corporation,12400 East Imperial Highway, Norwalk, California 90650. ,

! 3.0 DATE INFORMATION OBTAINED The Los Angeles Power Division " Deficiency Evaluation Committee" deter-

• mined the condition to be reportable pursuant to 10 CFR 21 on October 5,-

1983. (Reference - Palo Verde project, Deficiency Evaluation Report No.

83-45) 4.0 CONDITION DESCRIPTION During startup testing of Unit 1 some of the class IE panels were found j to be in violation of separation requirements for field installed cabling within enclosure per construction specification 13-EM-306 section 11.0.~

The conditions occurred during incorporation of modifications 'within .the

panels by Bechtel and APS. The reason is attributed to not having and/or ~

i implementing specific construction, startup, and maintenance procedures 1 in regard to separation requirements.-

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! The safety related ccbinets-in Unit 1 were inspected for separation requirements on a case by case basis, and the NCR's were issued for

- cabinets found in violation of separation requirements per construction specifications 13-EM-306 section 11.

5.0 ANALYSIS'0F' SAFETY' IMPLICATIONS-l - Some electrical isolation and physical separations were not in compliance

-with separation criteria requirements. 'This condition =is evaluated as reportable under the requirements of _10CFR_ Part.21.

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(a) NCR's will be dispositioned to provide compliance with' separation requirements of construction specification 13-EM-306 Section 11.

(b) Construction WPP/QCI 255.0, APS start-up procedure AD105 and APS maintenance procedure 30AC-9ZZ01 have been revised to specifically reference construction specification 13-EM-306 for separation criteria requirements to preclude recurrence.

(c) Separate inspections for Units 2 and 3 will be scheduled prior to Fuel Load in eacn unit to identify and correct any cabling separa-tion requirements not in compliance with specification 13-EM-306.

7.0 hUMBER AND LOCATION OF'0THER FACILITIES WHIC3 WERE SUPPLIED THE BASIC COMPONENT Although the noncompliance is considered unique to the Palo Verde project, information concerning this noncompliance is being furnished to other LAPD projects and other Bechtel Power Corporation divisions for review and reporting, if appropriate.

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