ML20244A868
| ML20244A868 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 04/03/1989 |
| From: | DETROIT EDISON CO. |
| To: | |
| Shared Package | |
| ML20244A601 | List: |
| References | |
| NUDOCS 8904180239 | |
| Download: ML20244A868 (6) | |
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' INSTRUMENTATION
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i "3/4.3.3 EMERGENCY CORE' COOLING SYSTEM ACTUATION INSTRUMENTATION LIMITING 00NDITION FOR OPERATION j
1 Y
I 3.3.3 The emergency core cooling system (ECCS) actuation instrumentation j
1 channels shown in Table 3.3.3-1 shall be OPERABLE with their trip setpoints
. set consistent with the values shown in the Trip Setpoint column of Table 3.3.3-2 and with EMERGENCY CORE COOLING SYSTEM RESPONSE TIME as shown in Table 3.3.3-3.
APPLICABILITY: As shown in Table 3.3.3-1.
c ACTION:
a.
With an'ECCS actuation instrumentation channel trip setpoint less
-conservative than the value shown in the Allowable Values column of Table 3.3.3-2, declare the channel inoperable until the channel is restored to OPERABLE status with its trip setpoint adjusted consistent with the Trip Setpoint value.
b.-
With one or more ECCS' actuation instrumentation channels inoperable, take the ACTION required by Table 3.3.3-1.
c.
With either ADS trip system "A" or "B" inoperable, restore the inoperable trip system to OPERABLE status within:
p.
1.
7 days, provided that the HPCI and RCIC systems are OPERABLE, otherwise,.
2.
72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
Otherwise, be'in at least HOT. SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and reduce reactor steam dome pressure to less than or equal to 150 psig within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
SURVEILLANCE REQUIREMENTS 4.3.3.1 Each ECCS actuation instrumentation channel shall be demonstrated OPERABLE by the performance of the CHANNEL CHECK, CHANNEL FUNCTIONAL TEST and CHANNEL CALIBRATION operations for the OPERATIONAL CONDITIONS and at the frequencies shown in Table 4.3.3.1-1.
4 3.3.2 LOGIC SYSTEM FUNCTIONAL TESTS and simulated automatic operation of all channels shall be performed at least once per 18 months.
4.3.3.3 The ECCS RESPONSE TIME of each ECCS trip function shown in Table 3.3.3-3 shall be demonstrated to be within the limit at least once per 18 months. Each test shall' include at least one channel per trip system such that all channels are tested at least once every N times 18 months where N is the total number of redundant channels in a specific ECCS trip system.
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TABLE 3.3.3-1 (Continued)
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l EMERGENCY CORE COOLING SYSTEM ACTUATION INSTRUMENTATION ACTION STATEMENTS ACTION 30 -
With the number,of OPERABLE channels less than required by the Minimum OPERABLE Channels per Trip System requirement:
a.
For one trip system, place that trip system in the tripped condition within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />" or declare the associated ECCS inoperable.
b.
For both trip systems, declare the associated ECCS inoperable.
1 ACTION 31 -
With the number of OPERABLE channels less tnan required by the Minimum CPERABLE Channels per Trip System requirement, declare j
the associated E$THp Syshm 6 inoperable.
ADS ACTION 32 -
With the number of OPERABLE channels less than required by the Minimum OPERABLE Channels per Trip System requirement, place the inoperable channel in the ripped condition within I hour.
rnanual inhibit an ACTION 33 -
Restore the manual initiatio function to OPERABLE status within-8 hours or declare the associated ECCS inoperable.
v
- ADS Trip Systews 5
ACTION 34 -
With the number of OPERABLE channels less than required by the J
Minimum OPERABLE Channels per Trip System requirement, place at least one inoperable channel in the tripped condition within I hour", align the HPCI system to take suction from the suppres-sion pool, or declare the HPCI system inoperable.
l ACTION 35 -
With the number of OPERABLE channels:
a.
One less than the Total Number of Channels, restore the inoperable channel to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or declare the associated emergency diesel generator inoperable i
and take the ACTION required by Specification 3.8.1.1 or 3.8.1.2, as appropriate.
b.
Less than the Minimum Channels OPERABLE requirement, declare-the associated diesel generator inoperable and take the ACTION required by Specification 3.8.1.1 or 3.8.1.2, as j
appropriate.
1 j
- The provisions of Specification 3.0.4 are not applicable.
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TABLE 3.3.3-3 EMERGENCY CORE COOLING SYSTEM RESPONSE TIMES TRIP FUNCTION RESPONSE TIME (Seconds) 1.
CORE SPRAY SYSTEM 2
a.
Reactor Vessel Low Water Level - Level 1.
<30 J
b.
Drywell Pressure-High 730 c.
Reactor Steam Dome Pressure-Low RA*
d.
Manual Initiation NA' 2.
LOW PRESSURE COOLANT INJECTION MODE OF RHR SYSTEM a.
Reactor Vessel Low Water Level - Level 1
< 43 b.
Drywell Pressure - High 7 43 c.
Reactor Steam Dome Pressure - Low RA*
d.
Reactor Vessel Low Water Level - Level 2 NA e.
Reactor Steam Dome Pressure - Low NA f.
Riser Differential Pressure - High.
NA g.
Recirculation Pump Differential Pressure -
NA High h.
Manual Initiation NA 3.
HIGH PRESSURE COOLANT INJECTION SYSTEM a.
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< 30 1
b.
Drywell Pressure - High 7 30 l
c.
Condensate Storage Tank Level-Low RA d.
Reactor Vessel Water Level-High, Level 8 NA Suppression Pool Water Level-High NA e.
f Manual Initiation NA j
4.
AUTOMATIC DEPRESSURIZATION SYSTEM a.
Reactor Vessel Low Water Level - Level 1 NA b.
Drywell Pressure-High NA c.
ADS Timer NA d.
Core Spray Pump Discharge Pressure-High NA e.
RHR LPCI Mode Pump Discharge Pressure-High NA 3
f.
Reactor Vessel Low Water Level - Level 3 NA g.
Manual Initiation NA 5.
LOSS OF POWER a.
4.16 kV Emergency Bus Undervoltage (Loss of Voltage)
NA b.
4.16 kV Emergency Bus Undervoltage (Degraded Voltage)
NA l
f "These are permissive signals only. They do not activate ECCS initiation.
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