ML19329E639
| ML19329E639 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 06/30/1974 |
| From: | Schwencer A US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Howell S CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 8006160420 | |
| Download: ML19329E639 (3) | |
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JU1. 3 0 19M Docket Nos. 50-32.
and 50-330 Consumers Power Company i
ATTN: Mr. S. H. Howell THIS DOCUMENT CONTAINS P00R QUAUTY PAGES 212 West chig enue Jackson, Michigan 49201 1
Gentlemen:
We have completed our review of several items presented in Amendment No. 26 to your application for construction pennits and operating licenses for Units 1 and 2 of your Midland plant.
Due to our heavy workload we have been unable to complete our review of this amendment on the schedule you requested but we will send you the results of our review of specific items as they become available.
j The following conclusions have been reached as a result of our review of Amendment No. 26 to date.
1.
Apparently, your surveillance procedure of the prestressing tendons does not conform with the recommendations of F.egulatory Guide 1.35 and does not follow the suggestions of the draft of the ACI/ASME Code (ASME Boiler and Pressure Vessel Code,Section III, Division 2). The Regulatory staff reconnends that you follow as closely as possible the guidance given in Regulatory Guide 1.35 " Inservice Inspection of Ungrouted Tendons in Prestressed Concrete Containment Structures".
2.
Penetration Pressurization System
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- i In response to item nunber 6..page 6-1, which states that containment' design does not include provisions for pressurizing channels located
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over containment liner welds, you have referred to Section 5.1.T which j
describes the provisions for air pressurization of the reactor building penetrations and the liner leak chase channels.
l Page 5-56b of Amendment No. 26 states that the liner plate weld channels l
will not be nomally pressurized but, are used to check leak tightness of the liner welds prior to concrete placenent and may be used to periodically test the containment leak tightness.
If excessive leakage l
should occur the channels will be pmssurized from the penetration pressurization system until repairs are made. This procedure is acepntable to t1e aeculatory staff.
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3.
Preoperational Integrated Leak Test (5.1.4.1.2)
You have stated that the design leakage rate will not exceed 0.1 percent by volume of the contained atmosphere and that the integrated leak test will be conducted in accordance with Appendix J.
In accordance with ANSI N45.4-1972, the leakage rate should be stated as the percentage by weight of the contained atmosphere.
Testing in accordance with Appendix J is acceptable to the Regulatory staff.
j 4.
Fuel Transfer Penetration (5.1.2.1.4a) i The applicant proposes to use a double gasketed blind flange in the refueling canal and a standard gate valve in the spent fuel pit. This arrangement treets the intent of General Design Criterion 56 for primary containment isolation and is acceptable to the Regulatory staff.
5.
Reinforcing Bar Testing We understand that your position in this matter is that you will confonn to Regulatory Guide 1.15 " Testing of Reinforcing Bars for Category I Concrete Structures". '.his is acceptable to the Regulatory staff.
Sincerely, l
STRIBUTION:
OM"81, signed si ockets (2)
ACRS (16)
Irving A. Peltier I
AEC PDR A. Schwencer, Chief LPDR
. Light Water Reactors Project Branch 2-3 LWR 2-3 Reading
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Directorate of Licensing VAMoore
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ces: Harold F. Reis, Esquire Newman, Reis, Axelrad 1025 Connecticut Avenue, N. W.
Washington, D. C.
20036 Honorable William H. Ward i
Assistant Attorney General l
Topeka, Kansas 66601 Howard J. Vogel, Esquire Knittle and Vogel 814 Flour Exchange Building 310 Fourth Avenue South Minneapolis, Minnesota 55415 Irving Like, Esquire Reilly, Like and Schneider 200 West Main Street Babylon, New York 11702 i
Myron M. Cherry, Esquire Jenner and Block i
1 IBP. Plaza l
Chicago,' Illinois 60611 s
James A. Kendall, Esquire 135 N. Saginaw Road Midland, Michigan 48640 i
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