IR 05000491/1979019
| ML19210E859 | |
| Person / Time | |
|---|---|
| Site: | Cherokee  |
| Issue date: | 11/16/1979 |
| From: | Bryant J, Rausch J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML19210E852 | List: |
| References | |
| 50-491-79-19, 50-492-79-19, 50-493-79-19, NUDOCS 7912130100 | |
| Download: ML19210E859 (4) | |
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UNITED STATES
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NUCLEAR REGULATORY COMMISSION
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101 MARtETTA ST., N.W., SUITE 3100 o
ATLANTA, GEORGIA 30303
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NOV 191979 Report Nos. 50-491/79-19, 50-492/79-19 and 50-493/79-19 Licensee: Duke Power Company 422 South Church Street Charlotte, North Carolina 28242 Facility Name:
Cherokee Nuclear Plant Docket Nos. 50-491, 50-492, and 50-493 License Nos. CPPR-167, CPPR-168 and CPPR-169 Inspection at Cherokee site near Gaffney, South Carolina
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Inspector:
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J. K. Rausch
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Date Signed
- Approved by:
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J.C.Bryant,'SectionChief,/RCE&SBranch Date signdd SUMMARY Inspection on October 23-26, 1979 Areas Inspected Th'is routine, unannounced inspection involved 21 inspector-hours onsite in the areas of QA program implementation, rebar placement and containment plate place-ment.
Results Of the areas inspected, no apparent item" of noncompliance or deviations were identified.
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DETAILS 1.
Persons Contacted Licensee Employees
- C. B. Aycock, Project Engineer
- J. W. Willis, Senior QA Engineer A. R. Hollins, Senior QC Engineer K. W. Schmidt, QA Engineer H. L. Atkins, QA Engineer, Mechanical, Welding and NDE Other licensee employees contacted during this inspection included technicians, and office personnel.
- Attended exit interview 2.
Exit Interview The inspection scope and findings were summarized on October 26, 1979, with those persons indicated in Paragraph 1 above.
Licensee Action on Previous Inspection Findings (Closed) Infraction 491-492-492/78-08-02; Calibration of sieves.
The inspector reviewed the final approved Revision 18 to procedure 0-1, " Control of Measuring and Test Equipment" which adds calibrations of sieves at 6-month intervals to the calibration. Calibrations were performed in June and July 1979.
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Unresolved Items Unresolved items were not identified during this inspection.
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Rebar Installation Chapter 5, of ACI 301-72, " Specification for Structural Specification No.
P815-1109.00-00-0001, Rev. 5, titled " Specification for Concrete for Category 1 Structures" was reviewed in conjunction with observation of rebar installation in the auxiliary building area surrounding the containment. The general grade, type and details of reinforcing steel are in accordance with the design drawings and purchase order specifications. The rebar is placed in accordance with AC1 301-72 except as modified by the Duke specification.
Where field bending of reinforcing bars partially embedded in hardened concrete is necessary, it is to be performed in strict accordance with construction procedure CKB-17. This procedure includes requirements for a form CDB-17A which must be completed before bending. Permanent bending not in accordance with design drawings is prohibited unless approved by Design 1543 121
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-2-Engineering. The inspector examined the following records in the CKB-17A file which show requests for and approval for bending rebar:
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PC 9AU115 2)
PCX 11AU109 3)
IPC 4BK181F 4)
63PC 9BK17 5)
IPC 4BK18 6)
IPC 4BK18 7)
2PC 5BK47 8)
IPC 10AH172 9)
IPC 9AG19 10)
IPC 10U2 11)
4PC 11N67 12)
6PC 11P92 13)
12PC 8P80 14)
2PC 9P91 15)
2PC 8P74 16)
2PC 7P126 17)
IPC 8P117 18)
IPC 9P116 19)
2PC 8P151 20)
IPC 7P64 No items of noncompliance or deviations were identified.
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Independent Inspection Effort The inspector examined the containment and auxiliary building areas of Unit I to observe construction activities in progress. The bottom dollar and the first zone pieces of the spherical containment were in place. The final closure weld of zone I had not yet been started.
In addition the inspector examined the common areas of Units 1, 2, and 3 inclusive of the NSW dam, pump structure and other auxiliary dams throughout the site. In general the inspector examined various other areas of the site observing construction work and related activities in progress, the general state of housekeeping and storage conditions of materials.
No items of noncom-pliance or deviations were identified.
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Surveillance Schedules The inspector examined the Cherokee surveillance schedule for the fourth quarter of 1979 and the completed schedule for the third quarter. The record shows that a monthly surveillance was made by Duke QA on several areas of concrete work, earthwork, containment, Cadweld installation, storage, piping, and welding.
A monthly surveillance of each area is scheduled for the fourth quarter of 1979. No items of noncompliance or deviations were identified.
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IE Bulletins Closed:
IEB 79-09, Failures of GE Type AK-2 Circuit Breaker in Safety Related Systems. Duke replied to this bulletin on July 16, 1979, advising that a review of the design of Cherokee Nuclear Station revealed that no GE Type AK-2 circuit breakers are used or planned for use in safety related systems at this station.
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