ML20238D902
| ML20238D902 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 09/03/1987 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20238D903 | List: |
| References | |
| NUDOCS 8709110486 | |
| Download: ML20238D902 (4) | |
Text
1 l
lif ACTIVITY CONTROI SYSTEMS j
)
3 -1,1.3 MOV AB1 E CONTROL ASSEMBIIES LIMITING CONDITION FOR OPER ATION I
i 3.1.3.)
The CEA Motion inhibit and all shutdown and regulating CEAs shall be l
u l
OPERABLE with each CEA of a given group positioned within 7.5 inches I
(indicated position) of all other CEAs in its group.
APPLICABILITY: MODES l' and 2*
l ACTION:
I l
a.
With one or more CEAs inoperable due to being immovable as a result l
of excessive friction or mechanical interference or known to be untrippable, be in at least IlOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
I b.
With the CEA Motion Inhibit inoperable, within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> either:
1.
Restore the CEA Motion IrUibit to OPERABLE status, or 2.
Place and maintain the CEA drive system mode switch in either the "Off" or any " Manual Mode" position and fully withdraw all CEAs in groups 3 and 4 and withdraw the CEAs in group 5 to less than 5% insertion, or 3.
Be in at least 1-IOT STANDBY.
c.
With one CEA inoperable due to causes other than addressed by l
ACTION a, above, and inserted beyond the Long Term Steady State Insertion Limits but within its above specified alignment requirements, operation in MODES I and 2 may continue for up to 7 days per occurrence with a total accumulated time of s 14 days per calendar year.
d.
With one CEA inoperable due to causes other than addressed by l
ACTION a,
- above, but within its above specified alignment j
requirements and either fully withdrawn or within the Long Term 1
Steady State Insertion Limits if in CEA group 5, operation in MODES 1 l
and 2 may continue.
See Special Test Exceptions 3.10.2 and 3.10.4.
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CALVERT CLIFFS - UNIT I 3/4 1-17 Amendment No.127 B709110486 870903 PDR ADOCK 05000317 l
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c.
With one or mia'e CEAs mitalined from tny other CEhs in its group l
i bj Jntore than 7.5 incher but 1;)s than 15 incles, opesation in MODES
) 'ind J may c$ntinue, prosided that within ' ne hour the misaligned o
L CEA(s)' is either:
o s.
s 1.
Restored to OPERABUE status within its above specified alignment r
requhernents, or
'l 2.
Declared inoperable.
After; [islaring the CEA inoperal;le, operation in MODES 1 and 2 may continue for up to 7 days oer oc tirrerne with a total accumulr;.d time of s 14 days per calendn year prctided'ali of the following canditions are met:
The THERMAL POWER level shall be reduced to s 70% of the E.
. maxin vin, allowable THERMAL POWER level for the existing
, Reactor Coolant Pump co nbination _ within one hcur; h* negative
' reactivity insenion is required to reduce TIIERMAL POWE R.
bor:, tion sna'.I be used b.
Within.one hour after reducing the THERMAL l'OWER ss regrJrea by a) rd,ose, the remainder of the CEAs i:; the group with the inoperattle CEA shall in aligned to within 7.5 inches of the inoperable CEA while maintahting the allowab!e CEA ser;uer.cc and insertion limits shown on Firure 3.1 -h the
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3I THERM 41, POWER level shall be restricud pursuant to Specification 3.1.3.6 during wbsequent operation.
f.
With one CEA misaligned from any othu UEA in its group by 15 ineNs
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or more, operation in MODES I and 2 nay evntinue, provided that the raisaligried CEA is positioned within 7..E inches of the other CEAs in itt
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group in accor6nce with the time al'owance shown in Fi uie 3.1 - 3.
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. The pre-:nisatiened F[ value used to determire the allowebie time to realign ihe. CEA Dom Figuie 3.1.b shst! be the latest rneasurement taken within 5
days prioi to the - CEA misalignment.
If no
' ineasurements. svere taken withm 3 dayr.'. prior to the misalignment, a pre-missligred F[ of 1.65 she.ll be asstmisd.
s i
hith one CEA misaligned from any other' CEA in its group by 15 inches i
g.
or more a'. the conclusion of the time allowance permitted in Figure 3.1-3, immediately start to implement the following actions:
1.
If the TIIERMAL POWER level prior to the raisalignment was greater than 50% of RATED THERMAL POWER, THERMAL POWER shall be reduced to less than the greater of:
CALVERT CLIFFS - UNlr 1 3/4 1-18 Amentiment No.127
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i
l RE ACTIVITY CONTROL SYSTENIS i
3/4.1.3 MOV ABLE CONTROL ASSEMBLIES LIMITING CONDITION fpR OPER ATION 3.1.3.1 The CEA Motion Inhibit and all shutdown and regulating CEAs shall be OPERABLE with each CEA of a given group positioned within 7.5 ' inches (indicated position) of all other CEAs in its group.
APPLICABILITY: MODES l' 'and 26 ACTIO,E:
With one or more CEAs inoperable due to being immovable as a result a.
of excessive friction or mechanical interference or known to be untrippable, be in at least IIOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
b.
With the CEA Motion Inhibit inoperable, within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> either:
l.
Restore the CEA Motion Inhibit to OPERABLE status, or 2.
Place and maintain the CEA drive system mode switch in either the "Off' or any " Manual Mode" position and fully withdraw all CEAS in groups 3 and 4 and withdraw the CEAs in group 5 to less than l
5% insertion, or 3.
Be in at least I!OT STANDBY.
c.
With one CEA inoperable due to causes other than addressed by ACTION a, above, and inserted beyond the Long Term Steady State lasertion Limits but within its above specified alignment requirements, operation in MODES I and 2 may continue for. up to 7 days per occur.rence with a total accumulated time of s 14 days per calendar year.
d.
With one CEA inoperable due to causes other than addressed by ACTION a,
- above, but within. its above specified. alignment requirements and either fully withdrawn or within the Long Term Steady State Insertion Limits if in CEA group 5, operation in MODES 1 and 2 may continue See Special Test Exceptions 3.10.2 and 3.10.4.
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i CALVERT CLIFFS - UNIT 2 3/4 1-17 Amendment No.109 l
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REACITVITY CONTROL SYSTEMS LIMITING CONDITION FOR OPER ATION e.
With one or more CEAs misaligned from any other CEAs in its ' group by more than 7.5 inches but less than 15 inches, operation in 510 DES I and 2 may continue, provided that within one hour the misaligned CEA(s) is either:
1.
Restored to OPERABLE status within its above specified alignment requirements, or 2.
Declared inoperable.
After declaring the CEA inoperable, operation in hf0 DES 1 and 2 may continue for up to 7 days per occurrence with a total accumulated time of s 14 days per calendar year provided all of the following conditions are met:
a.
The THERh!AL POWER ievel shall be reduced to s 70 % of the maximum allowable THER$1AL POWER level for the existing Reactor Coolant Pump combination within one hour; if negative reactivity insertion is required to reduce THERMAL POWER, boration shall be used.
b.
Within one hour after reducing the THERMAL POWER as l
required by a) above, the remainder of the CEAs in the group with the inoperable CEA shall be aligned to within. 7.5 inches of the inoperable CEA while maintaining the allowable CEA sequence and insertion limits shown on Figure 3.1-2; the i
THERMAL POWER level shall be.
restricted pursuant to Specification 3.1.3.6 during subsequent operation.
f.
With one CEA misaligned from any other CEA in its group by 15 inches i
or more, operation in MODES I and 2 may continue, provided that the.
misaligned CEA is positioned within 7.5 inches of the other CEAs in its group in accordance with the time allowance shown in Figure 3.1 - 3.
The pre-misaligned F[ value used to determine the allowable time - to realign the CEA from Figure 3.1-3 shall be the latest measurement taken within 5
days prior to the CEA misalignment.
If no measurements were taken within 5 days p:ior to the misalignment, n.
pre-misaligned F[of 1.65 shall be assumed.
g.
With one CEA misaligned from nny other CEA in its group by 15 inches or more at the conclusion of the time allowance permitted in Figure 3.1-3, immediately start to implement the following actions:
1.
If the THERMAL POWER. level prior to the misalignment was greater than 50 % of RATED THERMAL POWER, THERMAL POWER shall be reduced to less than the greater of:
CALVERT CLIFFS - UNIT 2 3/4 1-18 Amendment No.109 1
s.
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