ML20235Z496

Forwards Summary of 870506 Meeting W/Nrc Re Status of Wire & Cable Action Plan,Including Listing of NRC Concerns Discussed During Meeting.Rev 0 to Wire & Cable Program Rept Also Encl

ML20235Z496
Person / Time
Site:	Rancho Seco
Issue date:	07/21/1987
From:	Andognini G SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Miraglia F Office of Nuclear Reactor Regulation
Shared Package
ML20235Z500	List: ML20235Z496 ML20235Z524
References
GCA-87-090, GCA-87-90, TAC-65195, NUDOCS 8707270314
Download: ML20235Z496 (9)

Text

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$dilMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT O P. O. Box 15830, Sacramento CA 95852-1830,(916) 452-3211 AN ELECTRIC SYSTEM SE9VING THE HEART O}- CALIFORNIA GCA 87-090 JUL 21 1987

.U. S. Nuclear Regulatory Commission Attn: Frank J. Miraglia, Jr.

Associate Director for Projects Washington, DC 20555 Docket 50-312 Rancho Seco Nuclear Generating Station Unit #1 RANCHO SECO WIRE AND CABL'E PROGRAM DESCRIPTION AND ACTION PLAN

Dear Mr. Miraglia:

The District and NRC staff met at incho Seco on May 6, 1987 to discuss the status of the Rancho Seco Wire and Cable Action Plan. The meeting provided an update to the District's April 3,1987 submittal (JEW 87-478) " Wire and Cable Program Description and Action Plan."

Enclosure (1) is the District's meeting minutes. This incluties a listing of the NRC concerns discussed during the meeting and the District actions required to resolve these concerns.

Enclosure (2) is a report of the District actions to resolve cable raceway tracking system (CRTS) concerns. It includes an itemized list of CRTS

. actions / questions and a detailed discussion of each item. This submittal only includes discussions for the first four items and for Items 10 and 20. The District intends to submit Enclosure (2) on a monthly basis to report the status,of the Action Plan. All commentaries will be included in the August monthly report.

The District also considers that the information provided in Enclosures (1) and (2) and the District's commitment to provide a monthly update resolve the concerns regarding the Action Plan (submitted April 3,1987, JEW P,7-478) identified in the May 1, 1987 letter from J. B. Martin.

{

If you have any questions, please contact Robert Roehler of my staff.

Sincerely, I ff/*&

G. Carl AndogMn1 Chief Executive Officer, Nuclear h2 P

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Enclosures 1.MeetingMinutes(8Pages) i 2. Wire and Cable Program Report (42 pages). I cc: George Kalman, NRC - Bethesda (2) ,( )

A. D'Angelo, NRC - Rancho Seco #

DISTRICT HEADQUARTERS O 6201 S Street, Sacramento CA 95817 1899

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Enclosure 1 To GCA 87-090 MEETING MINUTES i

l RANCHO SECO CABLE AND RACEWAY INSTALLATION May 6, 1987 J

l Location: Rancho Seco Nuclear Generating Station Attendees: See Attachment 1 to this Enclosure  ;

I Presentation:

A presentation by SMUD Nuclear Engineering Department [J. Gough/G. Cranston]

was made on the status of the Wire and Cable Action Plan at Rancho Seco.

Additional information provided during the presentation was as follows:

Cable Population i

1975 (original cable population) 14,000

Post - 1975 9,000 Current Total 23,000 Pull Cards Not Yet Located 300 - 400 The statement was made that all cards are available and in a vault, with the exception of some 300 to 400 Non-Class 1 pull cards mostly in the period of 1975 to 1980, with some in the period of 1981 to 1985.

Correction l

The statement was not correct. The statement should have been made as follows:

Original Population: Copies of the original cards exist as i

(14,000 cables) attachments to the Construction Inspection Document Reports [CIDR's] which serve as the installattun verification records for the original cable population [ Attachment #2].

In addition, EE-553 records also exist and are complete [0ctober 1975].

Population Added: The total number of missing pull cards is l 1975 to 1986 believed to be 300 to 400. Some of the 1975 i (9,000) to 1980 cards are either hand or type written.

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Enclosure 1 To GCA 87-090 1 Security Cables All security cables are recorded in one of three data bases:  ;

1. EE-553-(KL)

P. CRTS

3. PC Data Base 1

All security cables are recorded in engineering design documents, 2030.of approximately 2200 cables are in CRTS.

' All security cables are in Non-Class 1 raceway.

l 1

i NRC Concerns - The following is a listing of NRC concerns and District actions resulting from the meeting. . Responses to concerns and actions 4 are discussed in Enclosure 2 with specific item numbers noted.

'I I. Statistical Sampling Basis for acceptability of 95/95 as sufficient assurance of safety.

Possible " biasing" of sample.

Provide definition of Major / Minor / Insignificant defects.

Action -

1. Provide basis for acceptability of 95/95 [ Enclosure 2, Item 19]. i

2. Discussion arranged by J. Gough/M. Caruso between NRR and SMUD statisticians. Took place on May 11,1987 [ Enclosure 2. Item 20]. j

3. Supplement decision tree with formal definitions [ Enclosure 2, Item 16].

II. Bechtel Report Must show clear basis for exclusien of the original Rancho Seco cable population from the CRTS sampling program.

1 Action I

1. Include justification for all judgements made in the Bechtel Report [ Enclosure 2, Item 7].

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Enclosure 1 ib GCA 87-090 III. Power / Control / Instrumentation Cable Mixing Level of review of post 1975 cable population.

Action

1. SMUD to provide justification for the level of review of the post 1975 cable population for design errors in cable routing

[ Enclosure 2 Item 9].

IV. Wire and Cable Action Plan Action Plan not clearly divided into pre- and post-restart items.

Action

1. CRTS Action Item List, included in Wire and Cable Program Report

[ Enclosure 2.]

V. Documentation of Problem Resolution ,

J Piecemeal approach to problem resolution.

l Action

1. Docunient each dispositioned problem as completed and provide copy to NRR.

2. Revise Wire and Cable Action Plan as reporting document [ Wire and  ;

Cable Program Report, Enclosure 2]. ,

VI. Cause of Breakdown in Compliance with Cable Installation Procedures No identification of causes of breakdown in compliance with procedures.

Action

1. Identify cause of breakdown in compliance with procedures l governing cable installation [ Enclosure 2, Item 15].

1 Attachment #1 - List of Attendees (1 page) l Attachment #2 - Sample Construction Inspection Data Report (4 pages) l

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Enclosure 1-To GCA 87-090 ATTACHMENT 1 Page1of[

CABLE AND RACEWAY INSTALLATION MEETING ATTENDEES MAY 6, 1987-NAME ORGANIZATION TITLE LOCATION W. Ang NRC Region V- Project Inspector Walnut Creek L. Miller NRC Region V Section 2 Chief, Reactor Proj. Walnut Creek F. Rosa NRR Manager Elect. System Branch - NRR/ DEST /SELB Bethesda  !

I. Ahmed NRR Electrical Engineer NRR/ DEST /SELB Bethesda M. Caruso- NRR Project Engineer- NRC/NRR HQ Bethesda G. Kalman NRR NRR Project Manager NRC/NRR HQ Bethesda W. Bibb SMUD Restart Implementation. Man. Rancho Seco G. Cranston SMUD Managen Nuclear Eng. Dept. Rancho Seco .

J. Gough Bechtel Electrical Engineering Man. Rancho Seco B. Croley SMUD Nuclear Plant Manager Ranciso.Seco P. Bender SMUD Sr. Construction Elect. Eng. Ranche Seco P. Hypnar Impell Impell Project Manager - Rancho Seco M. Basu SMUD Supervising Electrical Eng. Rancho Seco B. Carroll SMUD Principal Engineer Rancho Seco J. Browning SMUD IAG Engineer Rancho Seco J. Hodges Impell IAG Engineer Rancho Seco S. Talley Bechtel CRTS Program Coordinator Rancho Seco J. Vinquist SMUD Licensing Manager Rancho Seco C. Stephenson SMUD Princ. Reg. Compliance Eng.. Rancho'Seco

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Enclosure 1 To GCA 87-090 i 1

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