ML20137R131
| ML20137R131 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 02/04/1986 |
| From: | DETROIT EDISON CO. |
| To: | |
| Shared Package | |
| ML20137R071 | List: |
| References | |
| NUDOCS 8602070257 | |
| Download: ML20137R131 (1) | |
Text
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REFUEllNG OPERATIONS gu?EILLANCEREQUIREMENTS(Continued) b.
Performance of a CHANNEL FUNCTIONAL TEST:
1.
Within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> prior to the start of CORE ALTERATIDMS, and 2.
At least once per 7 days.
c.
Verifying that the channel count rate is at least 0.7* cps:
1.
Prior to control rod withdrawal, 2.
Prior to 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 /> during CORE ALTERATIONS, and 3.
At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
d.
Verifying, within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> prior to 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 /> during, that the RPS circuitry " shorting links" have been reinoved during the time any control rod is withdrawn ** unless adequata shutdown r,argin has demonstrated per Specification 3.1.1.
~
For only the fuel movements required to replace neutron sources, the count rate may be reduced to 0.3 counts per second prior to achieving a burnup of 2000 MWD /T on the first core provided the signal-to-noise ratio 22.
After a burnup of 2000 MWD /T, the count rate must be at least 0.7 cps provided the signal-to-noise ratio i s >._2.
Otherwise 3 cps.
~
J hided 54gnal-to-nois,e7atio1sprothetwise, 3 w. d
- Not required for control rods recoved per Specification 3.9.10.2 or 3.9.10.2.
FERMI - UNIT 2 3/4 9-4 0602070257 G60204 PDit ADOCK 05000341 p
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