ML17296B300

Final Deficiency Rept Re Cable Tray Supports Not Meeting Drawing Requirement.Caused by Drawing Misinterpretation. Structural Notes & Instructions Re Cable Tray Installation Revised for Clarity

ML17296B300
Person / Time
Site:	Palo Verde
Issue date:	03/16/1981
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Spencer G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
References
10CFR-050.55E, 10CFR-50.55E, ANPP-17484-BSK, NUDOCS 8103240364
Download: ML17296B300 (10)

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V REGULAT INFORMATION DISTRIBUTION YSTEM (RIDS)

ACCESSION NBR:8103?40364 DOC DATE! 81/03/16 NOTARIZED: NO DOCKE

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FACIL:STN-50-528 Palo Verde Nuclear *StatlonP Un) t STN-50, 529 Palo Verde Nuclear StationP Unit 2P Arizona Publi ii Arizona Publ i 0500 05000529 STN 50 530 Palo Verde Nuclear StationP Unit 3r Arizona Publi BYNAME 05000530 AUTH AUTHOR AFFILIATION VAN BRUNTiE,E. Arizona Public Service Co, RECIP ~ NAME RECIPIENT AFFILIATION SPENCERpG ~ ST Region rli Dallas< Reactor Construction 8 Engineering Sup

SUBJECT:

Final deficiency rept- re cable tray supports not meeting drawing requireirrent Caused by drawing misinterpretation.

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Structural notes L instructions re- cable tray installation revised for clarity.

DISTRIBUTION CODE: BOI9S COPIES RECEIVED:LTR rENCL J 'IZE:

TITLE: Construction Deficiency Repor t'10CFR50 55E) ~

NOTES:Standardized Plant, 1 cy:C Grimes 05000528 Standardized Plant, 1 cytC Grimes 05000529 Standardized Plant.i cy'.C Grimes 05000530 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME. LTTR ENCL ID CODE/NAME LTTR ENCL ACTION: A/D LICENSNG Orl 1 1 MIRAGLI A i F ~ 05 1 1 LEE,J ~ 06 1 1 KERRIGAN p J ~ 07 1 1 INTERNAL: ASLBP/J ~ HARD 1 1 D/DIR HUM FAC15 1 EDO 8 STAFF 19 1 1 EQUIP QUAL BR11 1 HYD/GEO BR 22 1 1 I8E 09 1 LIC QUAL BR 12 1 1 MPA 20 NRC PDR 02'RO 1 1 OELD 21 1 T REV 13 1 1 QA BR 1 rr 1 EG 01- 1 1 RUTHERFORDPH ~ IE 1 NDRDS DE V 21 1 1 EXTERNAL: ACRS 16 16 16 LPDR 03 1 1 NSIC 08 1 1 ggR 45 1S81 TOTAL NUMBER OF COPIES REQUIRED: LTTR ENCL Pf

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IFXltel HC'BIRRFllaEI CKSHIWS!Wt P. O. BOX 2I666 ~ PHOENIX, ARIZONA 85036 March 16, 1981 ANPP-17484-BSK/JAR U. S. Nuclear Regulatory Commission Region V 'e$

Walnut Creek Plaza Suite 202 1990 North California Boulevard "~ ~l98fe Walnut Creek, California 94596 3 CPA~)~~I Attention: Mr. G. S. Spencer, Chief Reactor Construction and Engineering Support Branch

Subject:

Final Report A 50.55(e) Reportable Condition Relating to Cable Tray Supports Not Meeting,,TIrawing Requirements File: 81-019-026; D:4.33.2

Reference:

(1) Telephone Conversation between J. Eckhardt and B. S. Kaplan on December 11, 1980 (DER 80-39)

(2). Interim Report, ANPP-17061-BSK/JAR, dated January 12, 1981

Dear Sir:

Attached, is our final written report of the reportable deficiency, under 10CFR50.55(e) referenced above.

Very truly your C( - - (u(

E. E. Van Brunt, Jr.

APS'Vice President Nuclear Projects ANPP Project Director EEVBJr/BSK:skc Attachment t

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U. S. Nuclear Reg tory Commission Attention: Mr. G. S. Spencer, Chief ANPP-17484-BSK/JAR March. 16, 1981 Page 2 CC ~ IVictor Stello, Jr., Director Office of Inspection-and-Enforcement U. S. Nuclear Regul'atory Commission Washington, D. C. 20555 A. C. Gehr Snell & Wilmer R. L. Robb D. B. Fasnacht W. E. Ide J. M. Allen A. C. Rogers J. A. Brand W. H. Wilson W. G. Bingham W. J. Stubblefield R. L. Patterson R. W. Welcher D. R. Hawkinson

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FINAL, REPORT REPORTABLE DEFICIENCY 50. 55 (e)

ARIZONA PUBLIC SERVICE COMPANY (APS)

PVNGS UNITS /fl, 82 AND /33 I. Descri tion of Deficienc During close-out of APS Quality Assurance Finding SQA-63-F8, it was observed that several. outstanding conditions exist with regard to completed cable tray installations. Examples of these problems in the Unit I Auxiliary Building which do not meet Drawing 13-E-ZAC-043 are:

1. The transverse brace and the vertical support member for H22 form an angle of 25o (30o-60o is required by Note 22B on Drawing 13-E-ZAC-043).

2. The support brace for H34 has been reversed on the vertical support member and the included angle is less than 30o.

3. The longitudinal brace shown on Drawing 13-E-ZAC-036 and,the support brace shown on Detail 2A-2, Drawing 13-E-ZAC-047, have been omitted from the support.

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-These conditions are attributed to a combination of drawing complexities, drawing revisions'uring the construction period, and structural notes and instructions which were not interpreted as per Engineering intent by Bechtel Construction. Surveillance activity of the completed installations in Unit 1, using the latest drawing revisions as the basis, has indicated that a number of mandatory corrections are required to bring the installations

-into compliance with design intent.

II. Anal sis of Safet Im lication This condition is considered to be reportable'ince if these were left uncorrected, some cable trays and their 'onditions supports would very likely be subject to stresses that exceed design allowables during a seismic event at locations where the critical support braces have been omitted. A specific analysis of these conditions was not performed since the conditions are being reworked to comply with the design drawings.

III. Corrective Action

1. The structural notes and instruction on the cable tray

'nstallation drawings have been revised for clarity and to provide definitive instructions. Engineering has been assured that these notes and instructions are acceptable and understood by Construction.

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Final Report Page 2

2. Unit 1 is undertaking a reinspection of all previously accepted Class 1E tray and supports. The inspection will cover configuration of supports and the proper application of bracing details using the revised design drawings. Any discrepancies found will be reworked per Work Plan Procedure 251.0 or documented and dispositioned on a Nonconformance Report per Work Plan Procedure 5.0.

3. Units f/2 and //3 cable tray installations have not been completed, but will comply with the latest drawing revisions for inspections and final acceptance.

Revised Drawin s 13-E-ZCC-031, Rev. 11 13-E-ZCC-032, Rev. 12 13-E-ZCC-034, Rev. 9 13-E-ZCC-037, Rev. 5 13-E-ZAC-045, Rev. 9 13-E-ZAC-046, Rev. 12 13-E-ZAC-047, Rev. 8 13-E-ZAC-048, Rev. 6 13-E-. ZAC-055,, Rev. 6 13-E-ZAC-059, Rev. 3 13-E-ZAC-060, Rev. 4 13-E-ZAC-062, Rev. 6 13-E-ZAC-074, Rev. 5 13-E-ZJC-021, Rev. 10 13-E-ZJC-022, Rev.

13-E-ZJC-023, Rev.

13-E-ZJC-024, Rev.

13-E-ZJC-026, Rev.

13-E-,ZJC-027, Rev.

13-E-ZJC-028, Rev. 5

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