IR 05000353/1988016

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Insp Rept 50-353/88-16 on 880620-24.No Violations Noted. Major Areas inspected:safety-related Electrical Sys & Components & Adequacy of Licensee Documentation Records for Procurement,Receiving & Storage of Electrical Cables
ML20207D456
Person / Time
Site: Limerick Constellation icon.png
Issue date: 07/28/1988
From: Anderson C, Woodard C
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
To:
Shared Package
ML20207D449 List:
References
50-353-88-16, NUDOCS 8808150354
Download: ML20207D456 (8)
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U.S. NUCLEAR REGULATORY COMMISSION

REGION I

Report No. 50-353/88-16 Docket No.- 50-353 License No. CPPR-107 Category B Licensee:

Philadelphia Electric Company 2301 Market Street Philadelphia, PA 19101 Facility Name:

Limerick Nuclear Generating Station, Unit 2 Inspection At:

Limerick, Pennsylvania Inspection Conducted: June 20-24,'1988 Inspector:

C. l.) o der J 7 4!ff C.H.' Woodart, Reactor Engineer date Approved by:

Or 7 2,7 PP C.J. hnderson, Chief, Plant Systems date Inspection Summary:

Inspection on June 20-24, 1988 (Report Nc. 50-353/88-16)

- Areas Inspected:

Routine, onsite unannounced inspection by one region-based inspector of activities pertaining to the safety-related electrical systems and components.

Specific areas reviewed included the adequacy of the licensee's

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documentation records for the procurement, receiving, storage, installat:on and acceptance of safety-related electrical cables.

Results: No violations were identified.

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8808150354 880004 ADOCK 0500

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DETAILS 1.0 Persons Contacted 1.1 Philadelphia Electric Company J. M. Corcoran, Manager Quality Assurance

  • D. A. DiPaolo, Quality Assurance Superintendent
  • M. L. Beer, Project Engineering Manager
  • 0. S. Cook, Construction Engineer
  • J. W. Mahaffey,-Quality Assurance Engineer
  • G. S. Hoke, Quality Assurance Engineer
  • G. Lauderback, Quality Control Supervisor T. S. Tucker, Quality Assurance Engineer T. Dey, Quality Assurance Engineer 1.2 Bechtel Corporation
  • H. F. Lilligh, Quality Assurance Manager
  • G. C. Kelly, Quality Assurance Engineer
  • K. G. Stout, Quality Assurance Engineer W. 0..Bradley, Quality Assurance Engineer
  • J. Hogue, Senior Field Engineer N. Roy, Electrical Engineer J.

1.3 U.S. Nuclear Regulatory Commission

  • R. L. Fuhrmeister, Resident Inspector
  • denotes those present at the exit meeting 2.0 purpose and Scope The purposes of this inspection was to determine whether:
  • The licensee and contractor system for preparing, reviewing and maintaining electrical records is functioning properly.
  • The electrical records reflect work accomplishments consistent with NRC requirements and licensee commitments.
  • The electrical records indicate any potential generic problems, management control inadequacies or other weaknesses of safety significance.

This inspection included selective sampling and evaluation of licensee records pertaining to safety related electrical cables and cable systems.

The scope of this inspection was limited to selected cables of the various types used in the 4160VAC, 480VAC and 125VDC electrical power and control distributio <

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3.0 Electrical Cable Records (51065)

3.1 Work and Inspection Records 3.1.1 Cable Material Purchasing and Receiving Records The cable file records for selected cable reels from those used in the cable installations discussed in paragraph 3.1.2 were examined.

The following records were examined for each cable reel:

  • Bechtel Quality Control Inspection Record.

This quality record summarizes Bechtel's back-up records contained in the file package to support the acceptance of the cable, and it contains both the inspection and the approval signatures for each inspection record category.

  • The Bechtel Material Receiving Report (MRR) which documents the cable received, its receiving inspector, and approval signatures.

It releases the material to storage and includes the proper delivery storage location.

  • The vendors report and Bechtel's acceptance of the actual cable footage on each reel.
  • Bechtel's supplier / vendor document review and approvals.
  • Cable supplier statements of cable conformance to the Bechtel Purchase Order.
  • Cable supplier deviation disposition requests (if any) and Bechtel's disposition / approval of such requests.
  • Cable suppliers certified test reports.

Records for cable used in the RHR system which was pulled from cable reels B13AI, H18AL, H17BJ, S81AU and C04CN were examined.

These records were a part of Bechtel Material Receiving Reports, (MRR), 137485, 114812, 137569, 11405 and 176900.

Records for cable used in the HPCI system which was pulled from cable reels C04-AJ, S81-AJ, B57-AD, B55-AF and B18-AJ were examined.

These records were a part of Bechtel MRR Reports 71271, 110087, 177361, 177376 and 17586.

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The-licensee permanent' plant electric cable material purchasing and receiving records for the ten lots of cable selected for-this inspection were found-under proper, secure control in a fire proof vault.

The records required logging out/in and required examination in a reading room adjacent to the records vault.

The quality assurance permanent plant cable pulling and termination installation record cards had not been completed and released for storage to the records vault. However they were found secured in controlled fire proof safes. These documents required appropriate logging out/in and were required to be returned to the fire proof storage at night.

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Conclusions made as a consequence of the cable purchasing and receiving records reviewed include the;following:

  • Receiving inspection documents properly and positively

identify received cable.

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  • Applicable engineering and functional specifications of received cable were met or otherwise noted.
  • The required qualification, performance, and nondestructive test requirements for the cable were met or otherwise noted.
  • Cable receiving inspection reports are complete, controlled and properly reviewed.
  • Statements of conformance and certification met the licensee's requirements.

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  • Cable documentation is protected, controlled and available.

No discrepancies or violations were noted.

3.1.2 Cable Installation Records The inspector examined the cable installation records for selected cables in the RHR, HPCI, Core Spray and Main Steam Systems.

The records examined included the cable pulling, termination, installation cards and the quality control inspection records for the installation and examination of the cables.

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Cable installation records including the pull cards, termination installation cards, the QCIR for the cable installation and the QCIR for the termination installations were examined for the following cables.

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Reel Cable

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. Plant-System Cable Identification Pulled From

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RHR 2AITH056A 702BH 2AB21101C C06BL 2A1E1A26A S81A0 2AA11504A H18AL 2AB21124A B13AP.

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2AB21124B B13AI 2AA11506A H17BJ 2AB21118A B08CZ HPCI 28022418C C04AJ 2BD20301F B18AJ 28020306A

- B55AF 2BLE2560A SSIAJ

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2B020301G B18AJ 2B020304A B57AD Core Spray 2AB2118C C04CN 20A1P0010A S30E0 2AA11506A H17BJ 2AB21118A B08CZ Main Steam 2 ALE 2274A S84AE Bechtel. Cable testing records were examined for the following safety related systems electrical cables.

Test Cable Number

. System Conducted Date of Test 2AA11503J RHR Megger April 12, 1983

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2AA11504A RHR Megger February 8, 1988 2AA11505A 440VAC Load Center Megger October 22, 1987 2AA11506A Core Spray Megger October 28, 1987 2AB21112A RHR Megger May 7, 1987

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2AB21120A Core Spray Megger

- December 21, 1987

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2AB21339A Standby Liquid Megger March 3, 1988 Control 2AB21508A Standby Liquid Megger January 4,.1988 Control 2AB51521A Emergency Service Megger August 4, 1987 Water 28821208B RHR Megger March 1, 1988 2BB21229A RHR Megger January 27, 1988 2BB21422A Main Steam Megger January 8, 1988 2BB21616A HPCI Megger September 18, 1988

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2BB51617A Control Rod Megger April 19, 1988 Hydraulics 2BB51618A Emergency Service Megger February 1, 1988 Water 2CB23313A RCIC Megger January 20, 1988

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The inspector found that the records for the physical install-ation/ pulling / testing of the cables, termination of the conductors and the quality control inspection / testing records verifying the installation criteria were satisfactory.

The records were well organized, with each inspection criteria delineated and appropriately signed by a qualified inspector and the complete documentation approved by a qualified / author-ized inspector /QC engineer.

(Refer to Section 3.1.3 Qualification of Personnel.) There were no unsatisfactory findings.

3.1.3 Qualification of Personnel The inspector examined the qualifications, training and certification file records for five Bechtel quality control engineering / inspection personnel who approved cable pulls and terminations for work reviewed in paragraph 3.1.2.

These records included the following.

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/. list of training courses attended, the hours for each course, the dates, the instructor (including his qualifi-cation), and the course grade (if applicable)

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A list of reading assignments, dates completed and approvals for the completions.

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A training resume.

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An education and experience resume.

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Certifications for each level and category of qualification achieved including date of certification, grade level

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achieved, certification attestors signatures, and signature of the certifying agency.

Each of the five selected were certified Level II Electrical Inspectors with Certifications E1 - Receiving Installation, E3 - Cable Installation, E4 - Cable Terminations, ES - Equipment Installation, and E6 - Electrical Testing.

The inspector selected and examined the qualification and training records of five of the electrical craftsmen who installed the cable addressed in paragraph 3.1.2.

In addition, to their previous electrical experience, each of the inspectors selected had participated in act less than 3 days of recent training in the installation and termination of permanent plant cables prior to performing this work. The inspector examined a current (June 15, 1988) list of electrical craftsmen qualified

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to perform electrical installations and terminations and found that those craftsmen who performed the selected installation terminations are also currently qualified and included in this list.

There were no unsatisfactory findings in the qualifications records of those personnel selected to perform the installation / inspection work discussed in paragraph 3.1,2.

3.1.4 Non Conformance Reports Seven electrical cable installation problems which were reported and dispositioned through the Bechtel NCR system were reviewed. NCR's reviewed are the following:

  • NCR 13379 reportad that on May 13, 1988 a Diesel Generator System green conductor of cable scheme 286501D was found with insulation damage.
  • NRC 13375 reported that on May 12, 1988 in the Primary Containment Instrument Gas System nicked insulation of the white conductor of cable 2CB21717 was found.
  • NCR 13350 reported that on May 5, 1988 in the Diesel Generator Fuel Oil System a portion of porcelain terminal block in LSHL-30-2218 was found broken.
  • NCR 13528 reported that on June 16, 1988 in the RHR Service Water System the arc barrier between points 3 and 4 of TB-1 was found broken off thereby rendering the quality of the terminal block nonconforming.
  • NCR 13452 reported that on May 27, 1988 that in the Containment Hydrogen Combiner System a nicked wire strand was found at the termination of cable 2DB21806A.

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For the NCR records reviewed during this inspection, the

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following conclusions were made.

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The NCR records are legible, complete, and were prcatly

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reviewed by qualified personnel.

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The reporting requirements of.10 CFR Parts 21 and 50 were-

recognized as a part of the evaluations and appropriate

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actions taken.

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The NCR-records were routinely processed, timely evaluated and controlled through established channels for resolution of the root cause-as well as the immediate

problem, 4.

The NCR records are properly identified, stored in a

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controlled fire proof records vault, and were readily

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retrievable for review.

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No deficicaciencies were identified in the licensee's handling

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of the above NCRs.

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3.1.5 Audit Records-PEco performs audits of Bechtel's Construction activities on a

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periodic basis on accordance with an Audit Plan and Schedule

for each of the functional areas established in the Audit Plan.

In addition, special audits are conducted as deemed

.necessary..The audits are conducted to verify /asure that Bechtel is performing work, inspection and maintaining records

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with qualified personnel in accordance with PECo/Bechtel approved procedures.

In addition to the PEco Audit Plan and Schedule, the NRC inspector reviewed the following PECo Audit

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Reports.

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  • Field Audit AR 2E-270 which was conducted October 13-14, 1987

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to review and witness Bechtel~ installation of permant:nt plant

cable on second and third shif ts to verify that cable is installed

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according to the applicable requirements.

  • Field Audit AR i ~236 which was conducted July 10-31, 1986 to verify the adequacy of the permanent plant electrical

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cable storage program, i

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  • Field Audit AR 2E-264 which was conducted June 24 -

l July 1,1987 to verify the adequacy and effectiveness of

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the electrical cable storage program.

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