U-601766, Proposed Tech Spec 3/4.3.4.1, ATWS Recirculation Pump Trip Sys Instrumentation
| ML20072Q510 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 12/17/1990 |
| From: | ILLINOIS POWER CO. |
| To: | |
| Shared Package | |
| ML20072Q508 | List: |
| References | |
| LS-89-021, LS-89-21, U-601766, NUDOCS 9012240099 | |
| Download: ML20072Q510 (3) | |
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~ l U-601766 4
LS-89-021 Page 9 of 11 INSTRUMENTATION 3/4.3.4 R'ECIRCULATION PUMP TRIP ACTUATION INSTRUMENTATION ATWS RECIRCULATION PUMP TRIP SYSTEM INSTRUMENTATION i
LIMITING CONDITION FOR OPERATION' 3.3.4.1 The anticipated transient without scram recirculation pump trip (ATVS-RPT) system instrumentation channels shown in Table 3.3.4.1-1 shall be OPERABLE with their trip setpoints set consistent with the values shown in the Trip Setpoint column of Table 3.3.4.1-2.
APPLICABILITY: OPERATIONAL CONDITION 1.-
/tCTION:
a.
With an ATVS-RPT system instrumentation channel trip setpoint less conserva-tive than the value shown in the Allowable Value column of Table 3.3.4.1-2, declare the channel _ inoperable until the channel is restored to OPERABLE-status with the channel trip setpoint adjusted consistent with the. Trip Setpoint value.
=t.
With the neber ef-OpERABEE-channels one less-then requir;;f by th: Mi n i - ---
-mus-04ERABL-E-Gha nne46-pe e-T+4 p-Sy s t e: require::nt fer en: trip f un:tien--in-.
-one trip-cyste, rectore-the inoperable channel te OPEP^ OLE etete: "ithia hou%-oe-b:-i at 102 t-STARTUPitthia the next-6 heure;-
UERT SURVEILLANCE REOUIREMENTS 4.3.4.1.1 Each ATWS-RPT system instrumentation channel shall be demonstrated OPERABLE by the performance of the CHANNEL CHECK, CHANNEL FUNCTIONAL TEST-and CHANNEL CALIBRATION
- operations at the frequencies shown'ir. Table 4.3.4.1-1.
4.3.4.1.2 LOGIC SYSTEM FUNCTIONAL TESTS and simulated automatic operation of all channels shall be performed at least once per.18 months.
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'b.
With.the number'of OPERABLE channels less than required by the-
. Minimum'0PERABLE ChannelsLper Trip System ~ requirement;for.one trip. system, place the inoperable _ channel (s) in the tripped.
condition within-72-hours.or be in at least STARTUP within'the
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next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
The provisionslof Specification 3.0.4 fare not applicable.
c.
With the number of OPERABLE-channels ~one less.than required by a
the Minimum OPERABLE _ Channels;per_ Trip System requirement'for L[
both trip systems, place at least one inoperable channel :in the-tripped condition within one hour. and placei he second -
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-inoperable channel in-the tripped condition _within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
Otherwise,1 be in _ at -least STARTUP within the next 6-hours. The provisions of Specification 3.0.4 are not applicable.
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d.
.With both-trip = systems otherwise inoperable, restore at least one trip system to10PERABLE status within one hour or be inLat.
3 least STARTUP within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
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' TABLE 3.3.4.1-1 n
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C ATWS RECIRCULATION PUMP TRIP SYSTEM INSTRUMENTATION
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- c MINIMUM OPERABLE CHpg'ELS j
PER TRIP SYSTEM TRIP FUNCTION a
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2 Low Low, Level 2 2.
Reactor Vessel Pressure High 2
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