ML19209C232
| ML19209C232 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 10/10/1979 |
| From: | CAROLINA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML19209C231 | List: |
| References | |
| NUDOCS 7910120230 | |
| Download: ML19209C232 (1) | |
Text
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POWER DISTRIBUTION LIMITS 3 /4. 2.3 MINIMUM CRITICAL POWER RATIO LIMITING CONDITION FOR OPERATION 3.2.3 The MINIMUM CRITICAL POWER RATIO (MCPR), as a function of core shown in flow, shall, be equal to or greater than MCPR times the Kf Figure 3.2.3-1, for Beginning-of-cycle (BOC) to end-of-cycle (EOC) minus a.
2000 MWD /t, with:
1.
MCPR for 7x7 fuel = 1.20, 2.
MCPR for 8x3 fuel e 1.21, 3.
MCPR for 8x8R fuel = 1.26.
b.
EOC minus 2000 MWD /t to E0C, with:
1.
MCPR for 7x7 fuel =
1.22 2.
MCPR for 8x8 and 8x8R fuel =
1.29 APPLICABILITY:
CONDITION 1, when THERMAL POWER > 25% RATED THERMAL POWER ACTION:
With MCPR less than the applicable limit determined from Figure 3.2.3-1, initiate corrective action within 15 minutes and continue corrective action so that MCPR is equal to or greater than the acclicable limit within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or reduce THERMAL POWER to less than 25% of RATED THERMAL POWER within the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
SURVEILLANCE REQUIREMENTS 4.2.3 MCPR shall be determined to be equal to or greater than the applicable limit determined from Figure 3.2.3-1:
} } 4 4 j,2 3 a.
At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, b.
Whenever THERMAL POWER has been increased by at least 15%
of RATED THERMAL POWER ant: steady state operating conditions have been established, and Initially and at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> when the reactor is c.
operating with a LIMITING CONTROL R00 PATTERN for MCPR.
1!") g BRUNSWICK UNIT 2 3/4 2-10 7910120
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