ML19340B922
| ML19340B922 | |
| Person / Time | |
|---|---|
| Site: | 05000124 |
| Issue date: | 10/23/1980 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML19340B920 | List: |
| References | |
| R-062-A-004, R-62-A-4, NUDOCS 8011120573 | |
| Download: ML19340B922 (2) | |
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ATTACHMENT TO LICENSE AMENDMENT NO. 3 FACILITY OPERATING LICENSE NO. R-62 DOCKET NO. 50-124 Replace existing page 4 of the technical specifications in Appendix A with the attached revised page 4.
The changed areas on the revised page are indicated with a marginal line.
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6.0 Reactor Core 6.1 Fuel :
6.1.1 Standard fuel elements shall be of the flat-plate type with twelve plates to each element.
For a period of 30 days i.e., December 1 to December 31, 1980 one fuel assembly may contain thirteen fuel plates. Each fully-loaded fuel plate shall be approximately 26-inches long by 3-inches wide by 0.080-inch thick, which includes 0.020-inch aluminum cladding on each side, containing a nominal 22 grams of U-235 as uranium-aluminum alloy.
The fuel plates shall be separated by 0.40 inch and mechanically joined at the top and bottom. Half and quarter-load fuel plates and aluminum dummy plates may be used to adjust the core loading.
6.1. 2 Low power fuel elements shall be the same as the standard fuel elements except for 0.010-inch cladding and a different size lifting attachment.
The low power elements
'shall not be operated above 100 watts.
6.1. 3 Twelve fuel elements, loaded six to each core tank, shall make up a core loading.
Maximum excess reactivity above cold clean critical shall be limited to 0.6% delta k/k including positive reactivity from experiments.
6.1. 4 The moderator temperature coefficient of reactivity shall be negative and have a minimum absolute reactivity value of 6.8 x 10-b delta k/k/*C at any operating temperature.
The moderator void coefficie.t of reactivity shall be negative and have a core averaged value of 0.184% delta k/k per 1% void.
6.2 Control Rods 6.2.1 Four 1/8" thick boral control rods, 2 safety,1 shim and 1 regulating of the windowshade type shall be positioned in slots machined in the graphite external reflector adjacent to the outside face and near each outside corner of the core. All control rods shall be inspected for cracks and deformations at least once a year.
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