ML19225B468
| ML19225B468 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 05/25/1979 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19225B467 | List: |
| References | |
| 50-483-79-04, 50-483-79-4, NUDOCS 7907250213 | |
| Download: ML19225B468 (1) | |
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Appendix A NOTICE OF DEVIATION Union Electric Company Docket No. 50-483 Based on the results of the NRC inspection conducted on April 24-26, 1979, it appears that one of your activities is not being conducted in conformance with your commitment to the Commission in the PSAR.
The following item is a deviation.
SNUPPS PSAR Section 3.12 commits to Regulatory Guide 1.19, August 11, 1972, Nond-structive Examination of Primary Contain-ment Liner, Welds, except for the following minor deviations, one of which is, "All nondestructive examination methods and techniques are in accor-dance with Section V of t5e ASME Boiler and Pressure Vessel Code, except for adiography which is in accordance with Appendix X of ASME Sectioc III."
(Appendix X to Section III and Article 2 of Section V are acceptable methods of meeting the requirements of Regulatory Guide 1.19, since their examination requirements are equivalent to those required by the regulatory guide.)
Appendix X to Section III of the ASME Boiler and Pressure Vessel Code Table X-3325.1-1, Staudard Penetrameter Sizes, requires that a penetrameter fer veld thickness range of over 1/4" through 3/8" be of a thickness of 0.0075" and designated a No. 7 penetra-mecer. The liner plate is 1/4" thick.
Contrary to the above, Bechtel Specification No. 10466-C151(Q),
Paragtaph 7.5.1.a requires that liner seam welds be examined radio-graphically in accordance with the requirements of Article 3, ASME Section V, which requires in Table T-320, Thickness Penetra-meter Designations and Essential Holes, that a penetrameter for a single wall material thickness range of over 1/4" through 3/8" be a size No. 12, which has a penetrameter thickness of 0.012".
This No. 12 penetrameter is 60% thicker than the No. 7 penetra-meter that is specified in Appendix X to Section III of the ASME Boiler and Pressu;? Vessel Code.
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