ML19323B386
| ML19323B386 | |
| Person / Time | |
|---|---|
| Site: | Zimmer |
| Issue date: | 04/01/1980 |
| From: | Borgmann E CINCINNATI GAS & ELECTRIC CO. |
| To: | Fiorelli G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML19323B382 | List: |
| References | |
| QA-1278, NUDOCS 8005120308 | |
| Download: ML19323B386 (3) | |
Text
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8005120366 o
r a p J,L Wy THE CINCINNATI GAS & ELECTRIC COMPANY erI
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CIN CIN N ATI.OHlO 4 5201
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April 1,1980 QA-1278 U. S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137 Attention: Mr. Gaston Fiorelli, Chief Reactor Construction and Engineering Support Branch RE: WM. H. ZIMMER NUCLEAR POWER STATION - UNIT I IE INSPECTION REPORT #80-03, DOCKET N0. 50-358, CONSTRuc. TION PERMIT CPPR-88, W.0. #57300-957, JOB E-5590 Gentlemen:
This letter constitutes our formal reply to the subject inspection report.
It is our opinion that nothing in the report or this reply is proprietary in nature.
Our response to the item of noncompliance, relative to the Structural Integrity Test Requirements identified in Appendix "A" of the report, is as follows:
I.
Corrective Action Taken and Results Achieved The test procedure, specification and FSAR have been or will be revised to assure that all applicable documents and Code requirements are consistent and compatible.
The deficiencies identified should be corrected as follows:
1.
Range of Pressure Gauge The pressure gauge to be used for the structural integrity test is supplied by Wiss, Janney, Elstner and Associates and is a Texas Instrument Quartz Bourdon tube pressure gauge.
This instrument is accurate throughout the range of the full scale with an accuracy of 0.001 per cent.
Hence, it meets the intent of the ASME Code.
2.
Acceptance Limits for Each Pressure Increment The Cincinnati Gas & Electric Test Procedure provides expected values of responses (strains and displacements) corresponding to khb
Mr. Gaston Fiorelli U. S. Nuclear Regulatory Commission Region III April 1,1980 - QA-1278 Page 2 the final test pressure of 52 psi. These responses have been predicted based on linear elastic structural analysis and hence can be linearly scaled to obtain responses corresponding to the intermediate pressure values.
This information shall be available during the conduct of the SIT.
3.
700F. Minimum Temperature Requirement Inside Containment During Test The applicable FSAR Section and the CG&E Test Procedure will be revised to require that the temperature be maintained above 600F.
during the test.
4.
Conflict in Size of Cracks to be Mapped FSAR, Section 3.8.1.7.2.1, has been revised (FSAR Rev. #64) to require that crack patterns for all cracks larger than 0.01 inch be mapped.
This is consistent with Regulatory Guide 1.18.
5.
Conflict in Amount of Deflection Recovery FSAR, Section 3.8.1.7.2.1, has been revised (FSAR Rev. #64) to specify a deflection recovery of 80% or more 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after depressurization.
This is consistent with Sargent & Lundy Specification NSFD 4210-PC-3, Section 6.4.1.3.
6.
Mapping Crack Patterns at Intermediate Pressure Increments During the test, cracks will be monitored to assure no abnormal behavior of the containment. We do not see a specific need for recording the crack patterns corresponding to the intermediate pressures. Regulatory Guide 1.18, Article 1, states that " crack patterns should be recorded at atmospheric pressure both before and after the test and at the maximum pressure level achieved during the test".
II. Corrective Action to be Taken to Avoid Further Noncompliance Sargent & Lundy will compare the requimments of all applicable codes, guides, standards and FSAR commitments to specifications and procedures
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covering the conduct of tests or other functions to assure appropriate reconciliation. The Sargent & Lundy Quality Assurance organization will l
Mr. Gaston Fiorelli U. S. Nuclear Regulatory Commission 1
Region III April 1,1980 - QA-1278 Page 3 conduct an audit to assure that such comparisons are performed and are adequate.
III.
Date When Full Compliance Will Be Achieved Revisions to documents and conduct of a QA audit will be completed s
by early May,1980.
9 We trust that this letter is an adequate response to your IE Inspection Report
- 80-03.
Very truly yours, THE CINCINNATI GAS & ELECTRIC COMPANY By
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E. A. BORGMANN SENIOR VICE PRESIDENT DCK:pa m
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