ML20214F037
| ML20214F037 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 08/02/1986 |
| From: | Andrews R OMAHA PUBLIC POWER DISTRICT |
| To: | Gagliardo J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| Shared Package | |
| ML20214F016 | List: |
| References | |
| LIC-86-393, NUDOCS 8611250172 | |
| Download: ML20214F037 (3) | |
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Omaha Public Power District 1623 Harney Omaha. Nebraska 68102-2247 402/536-4000 1
August 2, 1986
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LIC-86-393 J. E. Gagliardo, Chief Reactor Projects Branch U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Tx. 76011 Reference 1.
Docket No. 50-285 2.
Inspection Report 50-285/86-14 dated July 3, 1986
Dear Mr. Gagliardo:
Inspection Report 86-14 Notice of Violation Omaha Public Power District (0 PPD) recently received Reference 2 containing a Notice of Violation. The violation involved a failure to maintain cable and cable tray installations in accordance with design documentation.
Pursuant to 10 CFR2.201, OPPD's response is attached.
If you have any questions concerning this response, please do not hesitate to contact us.
Sinc el,
21 6 R. L. Andrews Division Manaaer Nuclear Production Attachment cc: LeBoeuf, Lamb, Leiby & MacRae 1333 New Hampshire Ave., N.W.
Washington, DC 20036 Mr. D. E. Sells, flRC Project Manager Mr. P. II. Ilarrell, NRC Senior Resident Inspector 8611200172 861117 PDR ADOCK 05000285 G
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ATTACHMENT During an NRC inspection conducted on May 1-31, 1986, a violation of the NRC requirements was identified. The violation involved the failure to maintain cable and cable tray installations in accordance with design documentation.
In accordance with the " General Statement of Policy and Procedure for NRC Enforce-ment Actions," 10 CFR Part 2, Appendix C (1985), the violation is listed below:
Criterion V of Appendix B to 10 CFR Part 50, as implemented by the OPPD Quality Assurance Plan, Section 4.2.1, requires, in part, that activities affecting quality shall be prescribed by documented instructions, proce-dures, or drawings, of a type appropriate to the circumstances and shall be accomplished in accordance with these instructions, procedures, or drawings.
Drawing 11405-E-60, " Reactor Auxiliary Building Tray Conduit Layout Plan,"
requires in Note 17 that solid covers be installed on cable trays. Drawing 11405-E-151, " Cable and Conduit Schedule Notes," requires in Note 18 that control and instrument cable be tied down in a neat configuration after installation in trays and in Note 20(a) that the 600-volt power cable fill of the trays shall not exceed 40 percent of the rectangular area 01 the cable tray.
Contrary to the above, cable and cable tray installations have not been maintained in accordance with design documents in that cable tray covers were not properly installed on trays in Rooms 69 and 57, and in the east Mnd west switchgear rooms; control and instrument cable was not properly tied down in trays EA 5-4 and EB 5-4; and cable tray fill requirement was exceeded in cable tray location 21-S.
This is a Severity Level IV violation. (Supplement I.D.) (285/8614-01)
OPPD RESPONSE Reason For The Violation. If Admitted a.
OPPD work instructions for cable and conduit installation (Specification GSEE-0516) do not adequately address workmanship requirements for cable installation at Fort Calhoun Station to ensure compliance with design documentation.
b.
The tray fill in Section 21S is original plant design. OPPD is unable to verify that this deviation from the standard cable and conduit schedule notes were evaluated and justified by the original A/E.
Corrective Steps Which Have Been Taken and Results Achieved a.
The specific workmanship discrepancies involving cable tray covers and redundant cable tie-downs noted by the NRC Inspector have been corrected.
This work is documented in Maintenance Order No. 86238.
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ATTACHMENT (Continued) b.
An analysis of tray Section 21S and the cables in that section have been completed.
This analysis demonstrates that the cables are adequately sized when considering the derating factors applicable to the actual tray fill.
(See also the actions to be completed below.)
Correctiva Steos Which Will be Taken to Avoid Further Violations The applicable work instructions will be revised to incorporate workmanship a.
considerations.
In addition, OPPD is conducting a complete inspection of cable trays in the Auxiliary Building and implementing corrective actions where necessary.
b.
OPPD is presently converting the Fort Calhoun cable and conduit schedule to a computerized system. This program will include capabilities to evaluate tray fill and loading.
A change to the Fort Calhoun Station Updated Safety Analysis Report, and c.
the Drawing ll405-E-151, " Cable and Conduit Schedule Notes," will be processed to allow for analysis of the loading of cable trays to be performed as an alternative to the 40% of cross-sectional area criteria.
The Date When Full Comoliance Will be Achieved The following actions are being taken in response to this notice of violation:
Correct the specific deficiencies noted by the NRC - Action Complete a.
b.
Inspect cable trays in the Auxiliary Building and correct any deficiencies
- action to be complete 9/1/86.
c.
Revise standard work instruction - action to be complete 10/1/86.
d.
Implement computerized cable and conduit schedule - action to be complete 12/31/86.
Update to the Fort Calhoun Station Updated Safety Analysis Report and e.
Drawing Il405-E-151 - action to be completed for the 1987 annual Safety Analysis Report update required by 10 CFR 50.71(e).
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