ML20085N569
| ML20085N569 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood, 05000000 |
| Issue date: | 11/07/1983 |
| From: | Tramm T COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| REF-GTECI-A-36, REF-GTECI-SF, RTR-NUREG-0612, RTR-NUREG-612, TASK-A-36, TASK-OR NUDOCS 8311110115 | |
| Download: ML20085N569 (1) | |
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Commonwe lth Edison Byron Nuclear Station 4450 North German Church Road jf Byron, Illinois 61010 November 7,1983 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
Byron Generating Station Units 1 and 2 Braidwood Generating Station Units 1 and 2 Control of Heavy Loads NRC Docket Nos. 50-454, 50-455, 50-456, and 50-457 Reference (a):
April 26,1983, letter from E. D. Swartz to H. R. Denton:
t
Dear Mr. Denton:
This letter provides additional details concerning the control of heavy loads during the construction of Byron and Braidwood stations when new fuel assemblies are being stored in the spent fuel pit. In the attachment to reference (a) we indicated the boundaries of a temporary heavy load exclusion area around the Byron new fuel storage area in the spent fuel pit. Recently, it has become apparent-that the temporary exclusion boundary must be violated to remove a temporary section of crane rail and girder. This letter documents the basis for our conclusion that this rail and girder can be safely handled.
- At Byron, it will be necessary to remove a section of the south rail and crane girder of the Fuel Handling Building Crane near the spent fuel pit to allow the Spent Fuel Pit Bridge Crane to travel far enough towards unit one containment to access the Fuel Transfer System upender basket. By design, this section of temporary rail and crane girder was installed for construction purposes and must be removed prior to using the Spent Fuel Pit Bridge Crane to access the Fuel Transfer System. This temporary section weighing approximately 9000 pounds was not considered in the amended response to the heavy load analysis. To ensure that the load cannot fall into the spent fuel pit, the girder section will be secured with safety lines while it is being lowered and transported within the temporary exclusion area. Once it is outside the exclusion area, it will be transported per the designated heavy load removal path which has been previously analyzed.
One signed original and fifteen copies of this letter are provided for NRC review.
Please address further questions regarding this matter to this office.
Very truly yaurs, y/hg/,/@
8311110115 831107 DRADOCK05000;g; 6
T. R. Tramm hp Nuclear Licensing Administrator l I vda 9