ML19320A316
| ML19320A316 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 01/30/1978 |
| From: | ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19320A305 | List: |
| References | |
| NUDOCS 8004210592 | |
| Download: ML19320A316 (1) | |
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a 3.1.7 Moderator Tenperature Coefficient of Reactivity Specification 3.1.7.1 The moderator temperature coefficient (MIC) shall be non-posicive whenever thermal power is >95% of rated thermal power and shall be less positive than 0.5 x 10-4 Ak/k/*F whenever thenral power is <95% of rated themal power and the reactor is not shutdown.
3.1.7.2 The MIC shall be detennined to be within its limits by confinnatory measurements prior to initial operation above 5% of rated thermal power after each fuel loading. MIC measured values shall be extra-polated and/or ccznpensated to permit direct cxanparison with the limits in 3.1.7.1 above.
Bases A non-positive moderator coefficeint at power levels above 95% of rated power is specified such that the maximun clad tenperatures will not exceed the Final Acceptance Criteria based on IOCA analyses. Below 95% of rated power the Final Acceptance Criteria will not be exceeded with a positive moderator tsuperature coefficient of +0.5 x 10-4 Ak/k/ F mrrected to 95%
of rated power. All other accident analyses as reported in the FSAR have been performed for a range of moderator tenperature coefficients including
+0.5 x 10-4 Ak/k/*F.
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