ML20135A339
| ML20135A339 | |
| Person / Time | |
|---|---|
| Site: | University of Michigan |
| Issue date: | 11/30/1984 |
| From: | MICHIGAN, UNIV. OF, ANN ARBOR, MI |
| To: | |
| Shared Package | |
| ML20135A333 | List: |
| References | |
| NUDOCS 8509100108 | |
| Download: ML20135A339 (1) | |
Text
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TECHNICAL SPECIFICATIONS Ford Nuclear Reactor Docket 50-2, License R-28 November, 1984 3.0 LIMITING CONDITIONS FOR OPERATION 3.1 Reactivity Limits i
Applicability:
This specification applies to the reactivity of the reactor core and to the reactivity worths of control rods and experiments.
2 When the reactor is operated with the heavy water reflector tank in place, the limits will not include the static reactivity worth of the tank.
Objective:
To assure that the reactor can be controlled and shutdown at all times and that the safety limits will not be exceeded.
j Specifications (1) The shutdown margin relative to the cold, xenon free critical condition shall be at least.025 delta K/K with all three shim safety rods fully inserted and the regulating rod fully withdrawn and 0.0045 delta K/K with the most reactive shim safety rod and the regulating rod fully withdrawn.
(2) The overall core excess reactivity including moveable experiments shall not exceed 0.000 delta K/K.
(3) The total reactivity worth of all experiments shall not exceed 0.012 delta K/K.
(4) The reactivity worth of each experiment shall be limited as follows:
Maximum Exoeriment Reactivity Worth Moveable 0.0012 delta K/K Secured 0.012 delta K/K (5) The reactor shall be subcritical by at least 0.025 delta K/K during fuel loading changes.
(6) Shim safety rods shall not be removed from the core for inspection if the shutdown margin is less than 0.01 delta K/K with the most reactive remaining shim safety rod fully withdrawn.
(7) The reactivity worth of the regulating rod shall not exceed 0.006 delta K/K.
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