ML080590399: Difference between revisions
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{{#Wiki_filter:3.7 PLANT SYSTEMS 3.7.4 Control Room Emergency Ventilation (CREV) System LCO 3.7.4 The CREV System shall be OPERABLE. | {{#Wiki_filter:CREV System 3 .7 .4 3 .7 PLANT SYSTEMS 3 .7 .4 Control Room Emergency Ventilation (CREV) System LCO 3 .7 .4 The CREV System shall be OPERABLE . | ||
The main control room envelope (CRE) boundary may be opened intermittently under administrative control. ------------------------------------- | --------------NOTE------------------- | ||
APPLICABILITY | The main control room envelope (CRE) boundary may be opened intermittently under administrative control . | ||
: MODES l, 2, and 3, During movement of recently irradiated fuel assemblies in the secondary containment, During operations with a potential for draining the reactor vessel (OPDRVs). REQUIRED ACTION Restore CREV System to OPERABLE status. | ------------------------------------- | ||
Quad Cities 1 and 2 3.7.4-1 Amendment No. | APPLICABILITY : MODES l, 2, and 3, During movement of recently irradiated fuel assemblies in the secondary containment, During operations with a potential for draining the reactor vessel (OPDRVs) . | ||
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. CREV System inoperable Restore CREV System 7 days in MODE 1, 2, or 3 for to OPERABLE status . | |||
NOTE ---__----___- | reasons other than Condition B . | ||
3.0.3 is not applicable. fuel assemblies in the secondary containment D.1 Suspend movement of or during OPDRVs. recently irradiated fuel assemblies in the secondary containment. CREV System inoperable due to an inoperable AND CRE boundary during movement of recently D.2 Initiate action to irradiated fuel suspend OPDRVs. assemblies in the secondary containment or during OPDRVs. | B. CREV system Initiate action to Immediately inoperable due to implement mitigating inoperable CRE actions . | ||
boundary in MODE l, 2, or 3 . AND B .2 Verify mitigating 24 hours actions ensure CRE occupant exposures to radiological, chemical, and smoke hazards will not exceed limits . | |||
AND B .3 Restore CRE boundary 90 days to OPERABLE status . | |||
(continued) | |||
Quad Cities 1 and 2 3 .7 .4-1 Amendment No . | |||
CREV System 3 .7 .4 ACTIONS (continued) | |||
CONDITION REQUIRED ACTION COMPLETION TIME C. Required Action and C .l Be in MODE 3 . 12 hours associated Completion Time of Condition A or AND B not met in MODE l, 2, or 3 . C .2 Be in MODE 4 . 36 hours D. CREV System inoperable ------------ NOTE ---__----___- | |||
during movement of LCO 3 .0 .3 is not applicable . | |||
recently irradiated fuel assemblies in the secondary containment D .1 Suspend movement of Immediately or during OPDRVs . recently irradiated fuel assemblies in the secondary containment . | |||
CREV System inoperable due to an inoperable AND CRE boundary during movement of recently D .2 Initiate action to Immediately irradiated fuel suspend OPDRVs . | |||
assemblies in the secondary containment or during OPDRVs . | |||
Quad Cities 1 and 2 3 .7 .4-2 Amendment No . | |||
CREV System 3 .7 .4 SURVEILLANCE REQUIREMENTS SURVEILLANCE | |||
-T FREQUENCY SR 3 .7 .4 .1 Operate the CREV System for >_ 10 continuous 31 days hours with the heaters operating . | |||
SR 3 .7 .4 .2 Perform required CREV filter testing in In accordance accordance with the Ventilation Filter with the VFTP Testing Program (VFTP) . | |||
SR 3 .7 .4 .3 Verify the CREV System isolation dampers 24 months close on an actual or simulated initiation signal . | |||
SR 3 .7 .4 .4 Perform required CRE unfiltered air In accordance inleakage testing in accordance with the with the Control Room Envelope Habitability Program . Control Room Envelope Habitability Program Quad Cities 1 and 2 3 .7 .4-3 Amendment No .}} | |||
Revision as of 19:06, 14 November 2019
| ML080590399 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities |
| Issue date: | 03/20/2008 |
| From: | Joel Wiebe NRC/NRR/ADRO/DORL/LPLIII-2 |
| To: | Pardee C Exelon Generation Co |
| Wiebe, Joel NRR/DORL/LPL3-2, 415-6606 | |
| References | |
| Download: ML080590399 (3) | |
Text
CREV System 3 .7 .4 3 .7 PLANT SYSTEMS 3 .7 .4 Control Room Emergency Ventilation (CREV) System LCO 3 .7 .4 The CREV System shall be OPERABLE .
NOTE-------------------
The main control room envelope (CRE) boundary may be opened intermittently under administrative control .
APPLICABILITY : MODES l, 2, and 3, During movement of recently irradiated fuel assemblies in the secondary containment, During operations with a potential for draining the reactor vessel (OPDRVs) .
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. CREV System inoperable Restore CREV System 7 days in MODE 1, 2, or 3 for to OPERABLE status .
reasons other than Condition B .
B. CREV system Initiate action to Immediately inoperable due to implement mitigating inoperable CRE actions .
boundary in MODE l, 2, or 3 . AND B .2 Verify mitigating 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> actions ensure CRE occupant exposures to radiological, chemical, and smoke hazards will not exceed limits .
AND B .3 Restore CRE boundary 90 days to OPERABLE status .
(continued)
Quad Cities 1 and 2 3 .7 .4-1 Amendment No .
CREV System 3 .7 .4 ACTIONS (continued)
CONDITION REQUIRED ACTION COMPLETION TIME C. Required Action and C .l Be in MODE 3 . 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> associated Completion Time of Condition A or AND B not met in MODE l, 2, or 3 . C .2 Be in MODE 4 . 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> D. CREV System inoperable ------------ NOTE ---__----___-
during movement of LCO 3 .0 .3 is not applicable .
recently irradiated fuel assemblies in the secondary containment D .1 Suspend movement of Immediately or during OPDRVs . recently irradiated fuel assemblies in the secondary containment .
CREV System inoperable due to an inoperable AND CRE boundary during movement of recently D .2 Initiate action to Immediately irradiated fuel suspend OPDRVs .
assemblies in the secondary containment or during OPDRVs .
Quad Cities 1 and 2 3 .7 .4-2 Amendment No .
CREV System 3 .7 .4 SURVEILLANCE REQUIREMENTS SURVEILLANCE
-T FREQUENCY SR 3 .7 .4 .1 Operate the CREV System for >_ 10 continuous 31 days hours with the heaters operating .
SR 3 .7 .4 .2 Perform required CREV filter testing in In accordance accordance with the Ventilation Filter with the VFTP Testing Program (VFTP) .
SR 3 .7 .4 .3 Verify the CREV System isolation dampers 24 months close on an actual or simulated initiation signal .
SR 3 .7 .4 .4 Perform required CRE unfiltered air In accordance inleakage testing in accordance with the with the Control Room Envelope Habitability Program . Control Room Envelope Habitability Program Quad Cities 1 and 2 3 .7 .4-3 Amendment No .