ML20062G799
| ML20062G799 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png |
| Issue date: | 08/05/1982 |
| From: | COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20062G791 | List: |
| References | |
| 4651N, NUDOCS 8208130172 | |
| Download: ML20062G799 (4) | |
Text
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6 ATTACHMENT ZION STATION UNITS 1 and 2 Proposed Change to Facility Operating License Nos. DPR-39 and DPR-48 l
Revised Pages:
51 52 53 i
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f'208130172 820805 PDR ADOCK 05000295 P
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. LIMITING CDOITION FOR OPERATION SLRVEILLANCE REQUIREENT 3.2.3
-Control Rod System Operability (per unit) 4.2.3 00ntrol Rod System Operability (per unit)-
J A.
Rod Misalignment Limitations A.
Rod Misalignment Limitations 1.
If a full-length control rod is out 1.
A rod malposition check shall be l
Of alignment with its bank by more made once a shift using both the analog and digital displays.
than 4 12 stops indicated; then,
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withlii 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, one of the following steps shall be taken:
a.
Realign the rod, or b.
Determine by measurement the core peaking factors and apply Specification 3.2.2.A, or
)
c.
Restrict power level to 80E of rated power.
i 2.
If the misaligned control rod is not 2.
Not Applicable realigned within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, the rod shall be declared inoperable and the limitations of 3.2.3.B apply.
t i
3.
The provisions of specifications 3.
Not A(plicable j
3.2.3.A and 3.2.3.B shall not apply i
during physics test in which the control rods are intentionally misa11gned.
j B.
Inoperable Rod Limitations B.
Inoperable Rod Limitations An inoperable control rod is a rod which There are no Surveillance Requirements cannnot be moved by its mechanism (Not a for 4.2.3.B.
l Rod Urgent Failure) or which is declared inoperable by Specification 3.2.3. A or 3.2.3.C.
APR ICABILITY:
Modes 1 and 2 51
LIMITING COPOITION FOR OPERATION SLRVEILLANCE REQUIREMENT 3.2.3.B 4.2.3.B ACTION:
a.
Not more than one inoperable control rod shall be permitted during power operation.
If more than one rod is determined to be inoperable,.the reactor shall be placed in the hot shutdown condition within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.
-j b.
If an inoperable full-length rod is
,j located above the 200 step level and is capable of being tripped, then the
]
ia*sertion limits in Figure 3.2.2 for Unit i
1 and Figure 3.2.4 for Unit 2 shall apply j
for 4 loop operation and the insertion i
limits in Figure 3.2-3 for Unit I and Figure 3.2-5 for Unit II shall apply for 4
3 loop operation.
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r LIMITING COPOITION FOR OPERATION SLRVEILLANCE RESJIREENT
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i 3.2.3.B 4.2.3.8
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I i
.c.
If an inoperable full-length rod is located below the 200 step level, power
[
l operation may continue provided that: An l
analysis of the potential ejected rod j
i
-worth is performed within 3 days and the i
rod worth is determined to be < (0.88)%
l
& at zero power and 1 (0.19)% &
i
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at RATED TKRMAL POWER for the remainder of the fuel cycle, and a) reactivity I
required to provide the design value of available shutdown as shown in figure -
i 3.2-1 shall be verified every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />; or b) the thermal power level is reduced to i 75% of rated thermal power within k
one hour and within the next four hours the high neutron flux trip setpoint is reduced to < 85% of rated thermal power; or c) the remainder of the rods I
in the group with the inoperable rod are aligned to within + (24) steps of the inoperable rod witliin one hour while maintaining rod sequence and insertion i
limits.
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