ML032790643
| ML032790643 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 10/01/2003 |
| From: | NRC/NRR/DLPM |
| To: | |
| References | |
| TAC MB8005, TAC MB8006 | |
| Download: ML032790643 (2) | |
Text
Rod Group Alignment Limits 3.1A 3.1 REACTIVITY CONTROL SYSTEMS 3.1.4 Rod Group Alignment Limits.
LCO 3.1.4 All shutdown and control rods shall be OPERABLE.
AND Individual actual rod positions shall be within 24 steps of their group step counter demand position when the demand position is between 30 and 215 steps, or within 36 steps of their group step counter demand position when the demand position < 30 steps, or > 215 steps.
a---NOT-
-a Individual RPIs may be outside their limits for < 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> following substantial rod movement.
APPICABI;IY:
MODES 1 and 2.
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One or more rod(s)
A.1.1 Vcrif SDM is within the 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> inoperable.
limits provided in the COLR.
OR A.1.2 Initiate boration to restore 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> SDM to within limit.
AND A.2 Be in MODE 3.
6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> Prairie Island Units I and 2 Unit I -Amendment No.
58, 160 Unit 2 - Amendment No.
49, 151 3.1.4-1
Rod Position Indication 3.1.7 3.1 REACTIVITY CONTROL SYSTEMS 3.1.7 Rod Position Indication LCO 3.1.7 The Rod Position Indication (RPI) System and demand position indication shall be OPERABLE.
NOTE--
Individual RPIs may be outside their limits for < 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> following substantial rod movement.
__~~
APPLCABIIIHY:
MODES I and 2.
ACTIONS 1MV 1 ~~~------ -------
Separate Condition entry is allowed for each inoperable rod position indicator and each demand position indicator.
_~~~~~
CONDITION REQUIRED ACTION COMPLETION TIME A. One RPI per group A.1 Verify the position of the Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> inoperable for one or rod(s) with inoperable more groups.
position indicators by using movable incore detectors.
OR A2 Reduce THERMAL 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> POWER to < 50% RTP.
Prairie Island Units 1 and 2 Unit 1 - Amendment No.
158, 160 Unit 2 - Amendment No. 149, 151 3.1.7-1