ML20066J760
| ML20066J760 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 01/29/1991 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20066J757 | List: |
| References | |
| NUDOCS 9102050090 | |
| Download: ML20066J760 (3) | |
Text
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PROPOSED TEC11NICAL SPECIFICATION CilANGES r
5":
9tO2050090 910129 PDR P
ADOCK 05000368 PDR
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'o 3/4'.2 POWER DISTRIBUTION LIM UA-
'3/4.2.1 LINEAR HEAT RATE-1M11MQJJNDITION -FOR _ OPE 86, TION
-3.2/1 The linear heat rate ' limit shall be maintained by either:
La... Maintaining COLSS calculated core power less' than or equal to -
COLSS' calculated core power operating _ limit based ~on_ linear _ heat
. rate (when COLSS is in service); or b.
- 0perating within the_ region of acceptable operation of Figure
~3.2-1 using any operable CPC Channel (when_COLSS is out of
-service).
APfLICABILITY:--MODE _1:above 20% of RATED THERMAL POWER.
ACIl0Br a.
With COLSS in service and the-linear. heat rate limit not being maintained.'as' indicated by COLSS calculated core power exceeding the COLSS calculated core. power-operating limit based-on linear heat rate, within 15 minutes initiate corrective action to reduce the linear heat ratecto within the limit and either; l.
Restore' the. linear-heat rate to within its limits within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />
'of the initiating event, or-4
-2.
Reduce THERMAL POWER to -less than or equal to 20% of RATED THERMAL POWER..within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
b..
-With COLSS out of= service and the' linear-heat rate limit not being-maintained as indicated by~ operation outside' the region of acceptable operation inLFigure 3.2-1,-either:-
.1.
Restore COLSS to service within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, or
- 2.
.If COLSS cannot be returned to service within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, restore
~
the linear heat rate to within its limits' within-the next 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />,-or-
-3.
Reduce THERMAL POWER to less than or. equal to:20% -of RATED THERMALLPOWER within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.-
.SURVElt. LANCE REQVIREMENTS 4.2.1.1 The provisions of Specification 4.0.4 are not applicable, f
'i 4.2.1.2 The linear heat rate shall be determined to be within its limits-
- when THERMAL-POWER is above 20% of RATED THERMAL POWER by continuously
-monitoring the. core power distribution with~ the ' Core -Operating Limit Supervisory System (COLSS) or, with the COLSS out of-service, by verifying at least once per 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> that the linear heat rate, as indicated on-any 0PERABLE CPC' channel _, is within the 1_imit shown on Figure 3.2-1.
4.-2.'1.3 At least once per 31 days, the COLSS Margin Alarm shall be verified to actuate at a THERMAL POWER level less than or equal to the core power operating lim _it based on linear heat rate.
. ARKANSAS - UNIT 2 3/4 2-1_
Amendment No. 2/,-79,.
.. ~
POWER DISTRIBUTION LIMITJ
-Q8BR MARGIN LIMITING CONDITION FOR OPERATION 3.2.4 The DNBR limit shall be maintained by one of the following methods:
a.
Maintaining COLSS calculated core power less than or equal to COLSS calculated core powcr operating limit based on DNBR (when COLSS is in service, and at least one CEAC is operable); or b.
Maintaining COLSS calculated core power less than or equal to COLSS calculated core power operating limit based on DNBR decreased by 13.0% (when COLSS is in service and neither CEAC is operable); or c.
Operating within the region of acceptable operation of Figure 3.2-2 using any operable CPC channel (when COLSS is out of service and at least one CEAC is operable); or d.
Operating within the region of acceptable operation of Figure 3.2-3 using any operable CPC channel (when COLSS is out of service and neither CEAC is operable).
APPLICABILITY: MODE 1 above 20% of RATED THERMAL POWER.
A.IlQH:
C a.
With COLSS in service and the DNBR limit not being maintained as indicated by COLSS calculated core power exceeding the COLSS calculated core power operating limit based on DNBR, within 15 minutes initiate corrective action to reduce the DNBR to within the limits and ef +.her:
1.
Restore the DNBR to within its limits within I hour of the initiating event, or 2.
Reduce THERMAL POWER to less than or equal to 20% of RATED THERMAL POWER within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
b.
With COLSS out of service and the DNBR limit not being maintained as indicated by operation outside the region of acceptable operation in Figure 3.2-2 or 3.2-3 as applicable, either:
1.
Restore COLSS to service within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, or 2.
If COLSS cannot be returned to service within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, restore the DNBR to within its limits within the next 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, or 3.
Reduce THERMAL POWER to less than or equal to 20% of RATED THERMAL POWER within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
l SURVEILLANCE REQUIREMENTS 4.2.4.1 The provisions of Specification 4.0.4 are not applicable.
l l
ARKANSAS - UNIT 2 3/4 2-7 Amendment No. M, M, D,