IR 05000327/1979028
| ML19247A956 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 05/31/1979 |
| From: | Bryant J, Hardwick R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19247A947 | List: |
| References | |
| 50-327-79-28, 50-328-79-15, NUDOCS 7908030608 | |
| Download: ML19247A956 (4) | |
Text
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REGION 11
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Report Nos. 50-327/79-28 and 50-328/79-15 Licensee:
Tennessee Valley Authority 500A Chestnut Street Tower II Chattanooga, Tennessee 37401 Facility Name: Sequoyah Nuclear Plant, Units I and 2 Docket Nos.: 50-327 and 50-328 License Nos.: CPPR-72 and CPPR-73 Inspection at Sequoyah Site near Chattanooga, Tennessee Inspector:
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'Date' Signed
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Approved by:
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C.Bryant,[SectionChigi,RC&ESBranch
'Date Signed SUMMARY Inspection on May 8-11, 1979 Areas Inspected This special unannounced inspection involved 25 inspector hours onsite in the areas of safety-related cable installation and QC records for the backflow gate hoist motors; qualifications of QC electrical inspectors; QC records of safety-related 125 volt D. C. safety re.'ated batteries; licensee identified items; and a walk through inspection of auxil. ?ry building elevations 690, 714, and 749.
Results Of the five areas inspected, no apparent items of noncompliance or deviations were identified.
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DETAILS 1.
Persons Contacted Licensee Employees
- G. G. Stack, Project Manager - Construction (Constr.)
- G. B. Lubinski, Electrical Engineering Supervisor - Constr.
- E. L. Burke, Electrical and Instrumentation Inspections Supervisor J. R. Smith, Electrical Engineer - Constr.
R. F. Campbell, Electrical Engineer - Constr.
C. W. Rice, Electrical Engineer - Cc. tr.
W. R. Thompson, Electrical Engineer - Constr.
E. C. Pendergrass, Engineer, QC Records Unit W. C. Long, Asscciate Electrical Engineer - Constr.
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on May 11, 1979, with those persons indicated in Paragraph 1 above.
3.
Licensee Action on Previous Inspection Findings Not inspected.
4.
Unresolved Items Unresolved items were not identified during this inspection.
5.
Licensee Identified Item (10 CFR 50.55 (e))
(0 pen) Item 328/78-06-04, Valve position indicator transformer failure.
The inspector reviewed Fonconforming Condition Report (NCR) number 700 and 714 and Engineering Change Notice (ECN) number 2054.
In addition to the corrective actions delineated in the licensee's letter dated July 5, 1978 to Region II, the inspector was informed that a surge suppressor netwcrk will be added to the valve's status monitoring relay circuits. This item remains open 1'nding NRC review cf planned corrective acticas and their implementation.
6.
hdependent Insp ection - Units 1 and 2 The inspector conducted a general valk-through inspection of auxiliary bu:1 ding elevations 690, 714, and 749.
Safety-related cable tray and conduit installations were examined.
Also, safety-related components, panels, and the 125 volt D. C. batteries were inspected for in place sto; age and preservation.
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Within the areas examined, no items of noncompliance or deviations were identified.
7.
Electrical (Cables and Terminations I)
Observation of Work and Work
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Activities - Units 1 and 2 The inspector selected the following safety-related 480 volt power cables for examination:
Cable Number Use IPL6360A Power feed to Backflow Gate Hoist motor number 1AA IPL6370B Power feed to Backflow Gate Hoist motor number IBB 2PL6360A Power feed to Backflow Gate Hoist motor number 2AA 2PL6370B Power feed to Backflow Gate Hoist motor number 2BB.
Cable size, type, physical protection, independence, separation, routing, identification, and termination were examined.
The cable terminations were inspected per connection drawings at both the 480 volt motor operated valve board and the gate control cabinet cable en/;.
QC installation inspection records were reviewed to ensure installa-
.. :a tests specified by the "Sequoyah Nuclear Plant (SNP) Cable / Conduit P.ogram " printout had been performed and documented. Nondestructive tests which included continuity, megger, and visual examination had been performed and documented.
Cable trsy grounding, bonding, identification, and loading were observed and appeared to be adequate.
Within the areas examined, no items of noncompliance or deviations were identified.
8.
Ele-trical (Cables and Terminations I) - Review of Records - Units 1 and
The inspector selected the cables identified in paragraph 7 ft QC records review.
Cable conduit -
n location, size, identification, physical protection, separation, <
ger installations had been QC inspected and documented in accordance
. SNP Inspection Instruction (II) number 26. Cable instal-lation QC inspections which included visual examination, coctinuity and megger checks, and termination torqueing had been perfo:med and documented as required by SNPII number 10.
The cable pulling had been QC inspected and documented as specified in SNPII number 28.
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-3-A review of the training records for each QC inspector who had performed an inspection involving the selected cable or conduit installations was made.
Each QC inspector had satisfactorily completed required training prior to performance of the specific inspection.
Within the areas examined, there were no items of noncompliance or deviations identified.
9.
Electrical (Components and Systems II) - Review of Quality Records - Units 1 and 2 The inspector selected the safety-related 125 volt D. C. batteries for QC records review. Tennessee Valley Authority (TVA) specification 1591 for SNP was reviewed for seismic qualification and test requirements for each individual battery. These battery seismic qualification tests were witnessed by a TVA Inspection and Test (I&T) Branch inspector and documented in I&T inspection report number 9, dated June 10, 1974.
Results of the seismic qualification test were reviewed by Engineering Design (EN DES), and approval of the results was documented in I&T inspection report number 10, dated August 12, 1974.
Within the areas examined, there were no items of noncompliance or deviations identified.
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