IR 05000250/1982012
| ML20050N542 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 03/17/1982 |
| From: | Ang W, Herdt A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | |
| Shared Package | |
| ML20050N536 | List: |
| References | |
| 50-250-82-12, 50-251-82-12, IEB-79-02, IEB-79-14, IEB-79-2, NUDOCS 8204140395 | |
| Download: ML20050N542 (4) | |
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UNITED STATES
1, NUCLEAR REGULATORY COMMISSION i
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a REGION 11
101 MARIETTA ST., N.W., SUITE 3100
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ATLANTA, GEORGIA 30303 l
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Report Nos. 50-250/82-12 and 50-251/82-12 Licensee:
Florida Power and Light Company 9250 West Flagler Street Miami, FL 33152 Facility Name:
Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 License Nos. DPR-31 and DPR-41 Inspection at Bechtel Power Corporation, Gaithersburg, Maryland Inspector: [b 3-17-sz-
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W. P. Ang'
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Date Signed O
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Approved by:
_ Dste Signed A. R. Herdt, Section Chief Engineering Inspection Branch Division of Engineering and Technical Programs SUMMARY
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Inspection on February 24-26, 1982 Areas Inspected This routine, announced inspection involved 16 inspector-hours at Bechtel Power Corporation, Gaithersburg, Maryland, in the areas of seismic analysis for as-built safety-related piping (IEB 79-14); and pipe support baseplate designs using concrete expansion anchor bolts (IEB 79-02).
Results I
Of the areas inspected, no violations or deviations were identified.
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I REPORT DETAILS 1.
Persons Contacted Licensee Employees
- T. Roberts, Engineering Site Representative
- S. G. Brain, Engineering Project Manager Bechtel Power Corporation
- B. K. Kanga, Engineering Division Manager
- D. C. Kansal, QA Division Manager
- R. H. Flugrath, QA Manager - Audits
- L. F. Siriani, Power QA Engineer
- A. W. Wilk, Project Engineer G. K. Wang, Assistant Project Engineer S. A. Bukhari, Plant Design Group Supervisor M. Kebbede, Piping Stress Engineer G. C. Crim, Piping Stress Engineer H. Dilema, Pipe Support Engineer NRC RIV Principal Inspector
- J. R. Costello
- Attended exit interview
- Exit interview by telephone on March 1,1982 2.
Exit Interview l
The inspection scope and findings were summarized on February 26, 1982, and March 1, 1982, with those persons indicated in paragraph 1 above.
The inspector described the areas inspected and discussed in detail the unre-solved items listed below. No dissenting comments were received from the licensee.
(0 pen)
Unresolved Item 50-250,251/82-12-01 - Diesel Generator Exhaust piping not classified as safety related.
(0 pen)
Unresolved Item 50-250,251/82-12-02 - Seismic Response Spectra for Pressurizer Spray Piping
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Unresolved Item 50-250,251/82-12-03 - Analytical System Opera-bility Confirmation for IEB 79-14 Discrepancies 3.
Licensee Action on Previous Inspection Findings Not inspected.
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Unresolved Items Unresolved items are matters about which more information is required to determine whether they are acceptable or may involve violations or devia-tions. New unresolved items identified during this inspection are discussed in paragraph 5.
5.
Seismic Analysis for As-Built Safety Related Piping (IEB 79-14)
On December 21, 1979, the licensee submitted its response to IEB 79-14. A follow-on inspection to NRC RII Reports 50-250/81-27 and 50-251/81-27 was performed to verify licensee compliance with IEB 79-14 requirements and licensee commitments. The licensee had contracted with Teledyne Engineering Services to complete the IEB 79-14 piping analysis and pipe support analysis.
The Bechtel/Teledyne interface was reviewed to determine the scope and content of the work that was turned over to Teledyne. Bechtel had individual packages for each stress problem that included IEB 79-14 walkdown information, preliminary functional piping and pipe support / restraint analysis and associated data.
During the inspection, it was determined that Bechtel had not completed the functional analysis for eleven Unit 4 and nine Unit 3 problems. Subsequent telephone conversations with the licensee revealed that Teledyne had not completed the functionality analysis either. On March 3,1982, the licensee informed RII that all the functionality analysis were scheduled to be comp _
lete by March 31, 1982. Pending completion of the functionality analysis, this item was identified as unresolved item 50-250/82-12-03 and 50-251/82-12-03 " Analytical System Operability Confirmation For IEB 79-14 Discrepan-cies."
During this review, it was also noted that the Diesel Generator Exhaust Piping was not classified as safety-related and no seismic analysis record was available for it.
It was, consequently, not included in the IEB 79-14 inspections.
This question was identified as unresolved item 50-250/82-12-01 and 50-251/82-12-01, "Non-Safety-Related Classification of Diesel Generator Exhaust Piping" Bechtel had completed the functionality piping and pipe support / restraint analysis for stress problems PS-1 (Unit 3 Pressurizer Spray Piping) and CVCS-25A (Unit 4 Chemical and Volume Control Piping).
The analysis for these problems were inspected.
Input data, including IEB 79-14 as-built information, seismic response spectra, and material properties were
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reviewed. Piping analysis results were also reviewed. Pipe support analy -
sis were reviewed for IEB 79-14 as-built information, piping analysis pipe support loads, and support / restraint analysis results. During the inspec-tion it was noted that two pipe support / restraints for stress problem PS-1 was attached to the pressurizer cubicle at elevation 77 feet. The seismic response spectra used was for the shield wall which only extended to eleva-tion 58 feet. The licensee was requested to verify the conservatism and the adequacy of the seismic analysis.
Pending resolution of this question.
This was identified as unresolved item 50-250/82-12 and 50-251/82-12,
" Seismic Response Spectra for Pressurizer Spray Piping."
No violations or deviations were identified.
6.
Pipe Support Baseplate Designs Using Concrete Expansion Anchors (IEB 79-02)
On October 16, 1981, the licensee submitted a final response to IEB 79-02.
A follow-on inspection to NRC RII report numbers 50-250/81-27 and 50-251/
81-27 was performed to verify licensee compliance with IEB 79-02 require-ments and licensee commitments.
Pipe support analysis for stress problem PS-1 (Unit 3) and CVCS-25A (Unit 4) pipe supports were sampled and reviewed for IEB 79-02 inspection result evaluations, concrete expansion anchor analysis and resultant safety-factors.
The re analysis for the reduced ultimate capacity for one inch wedge type concrete expansion anchors were also inspected. The licensee was reminded that IEB 79-02 analysis should be reverified upon completion of IEB 79-14 analysis for any pipe support /
restraint load changes that would affect the IEB 79-02 calculations.
No violations or deviations were identified.
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