ML13331B116
| ML13331B116 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 12/29/1988 |
| From: | SOUTHERN CALIFORNIA EDISON CO. |
| To: | |
| Shared Package | |
| ML13331B114 | List: |
| References | |
| NUDOCS 8901040162 | |
| Download: ML13331B116 (8) | |
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ATTACHMENT 1 PROPOSED TECHNICAL SPECIFICATIONS 8901040162 881229 PDR ADOCK 05000206 P
3.5.11 CONTAINMENT SPRAY ACTUATION SYSTEM INSTRUMENTATION APPLICABILITY:
As shown in Table 3.5.11-1.
OBJECTIVE:
To ensure reliability of the containment spray actuation provisions.
SPECIFICATION:
The instrumentation channels shown in Table 3.5.11-1 shall be OPERABLE with their trip setpoints set consistent with the values shown in the Trip Setpoint column of Table 3.5.11-2.
ACTION:
A. With an instrumentation channel trip setpoint less conservative than the Allowable Values column of Table 3.5.11-2, declare the channel inoperable and apply the applicable ACTION requirement of Table 3.5.11-1 until the channel is restored to OPERABLE status with the trip setpoint adjusted consistent with the Trip Setpoint Value.
B. With an instrumentation channel inoperable, take the ACTION shown in Table 3.5.11-1.
BASIS:
The operability of this instrumentation systems ensures that
- 1) the associated action will be initiated when the parameter monitored by each channel or combination thereof reaches its setpoint, 2) the specified coincidence logic is maintained,
- 3) sufficient redundancy is maintained to permit a channel to be out of service for testing or maintenance, and 4) sufficient system functional capability is available from diverse parameters.
The operability of this instrumentation is required to provide the overall reliability, redundancy, and diversity assumed available in the facility design for the protection and mitigation of accident and transient conditions. The integrated operation of this instrumentation is consistent with the assumptions used in the accident analyses.
SAN ONOFRE -
UNIT 1
TABLE 3.5.11-1 CONTAINMENT SPRAY ACTUATION SYSTEM INSTRUMENTATION MINIMUM TOTAL NO.
CHANNELS CHANNELS APPLICABLE FUNCTIONAL UNIT OF CHANNELS TO TRIP OPERABLE MODES ACTION Manual Actuation
- 1) Train A 2
2 2
1, 2, 3, 4 31
- 2) Train B 2
2 2
1, 2, 3, 4 31 Containment Pressure-(High-High) 3/train 2/train 2/train 1, 2, 3 32 Sequencer Subchannels 2/sequencer 2/sequencer 2/sequencer 1, 2, 3, 4 33 Actuation Logic 2
1 2
1, 2, 3, 4 34
TABLE 3.5.11-1 (Continued)
TABLE NOTATION ACTION STATEMENTS ACTION 31 With the number of OPERABLE Channels one less than the Minimum Channels OPERABLE requirement, restore the inoperable channel to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.
ACTION 32 With the number of OPERABLE channels one less than the Total Number of Channels, operation may proceed provided the inoperable channel is placed in the tripped condition and the Minimum Channels OPERABLE is met. One channel may be bypassed for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for surveillance testing per Specification 4.1.14.
ACTION 33 With the number of OPERABLE channels one less than the Total Number of Channels, be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />; however, one channel may be bypassed for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, for surveillance testing per Specification 4.1.14.
ACTION 34 With the number of OPERABLE channels one less than the Minimum Channels OPERABLE requirement, be in at least HOT STANDBY within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />; however, one channel may be bypassed for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for surveillance testing per Specification 4.1.14, provided the other channel is OPERABLE.
SAN ONOFRE -
UNIT 1
TABLE 3.5.11-2 CONTAINMENT SPRAY ACTUATION SYSTEM INSTRUMENTATION TRIP SET POINTS FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLE VALUES Manual Not Applicable Not Applicable Containment Pressure-(High-High)
< 10 psig 10 psig Sequencer Subchannels Not Applicable Not Applicable Actuation Logic Not Applicable Not Applicable
4.1.14 CONTAINMENT SPRAY ACTUATION SYSTEM INSTRUMENTATION APPLICABILITY:
Applies to instrumentation which actuates the containment spray system.
OBJECTIVE:
To ensure reliability of the containment spray actuation instrumentation.
SPECIFICATION:
Each instrumentation channel shall be demonstrated OPERABLE by the performance of the CHANNEL CHECK, CHANNEL CALIBRATION, CHANNEL TEST, TRIP ACTUATING DEVICE OPERATIONAL TEST, and ACTUATION LOGIC TEST operations for the MODES and at the frequencies shown in Table 4.1.14-1.
BASIS:
The surveillance requirements specified for this instrumentation ensure that the overall system functional capability is maintained comparable to the original design standard. The periodic surveillance tests performed at the minimum frequencies are sufficient to demonstrate this capability.
SAN ONOFRE -
UNIT 1
TABLE 4.1.14-1 CONTAINMENT SPRAY INSTRUMENTATION SURVEILLANCE REQUIREMENTS TRIP ACTUATING DEVICE ACTUATION MODES IN WHICH CHANNEL CHANNEL CHANNEL OPERATIONAL LOGIC SURVEILLANCE FUNCTIONAL UNIT CHECK CALIBRATION TEST TEST TEST REQUIRED Manual N.A.
N.A.
N.A.
R N.A.
1, 2, 3, 4 Containment Pressure-S R
M(1)
N.A.
N.A.
1, 2, 3 (High-High)
Sequencer Subchannels N.A.
N.A.
M(2)
N.A.
N.A.
1, 2, 3, 4 Actuation Logic N.A.
N.A.
N.A.
N.A.
M(2) 1, 2, 3, 4
TABLE 4.1.14-1 (Continued)
TABLE NOTATION (1) The CHANNEL TEST shall include exercising the transmitter by applying either a vacuum or pressure to the appropriate side of the transmitter.
(2) Each train shall be tested at least every 31 days on a STAGGERED TEST BASIS.
SAN ONOFRE -
UNIT 1