ML20202B179
| ML20202B179 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 02/04/1998 |
| From: | FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML20202B132 | List: |
| References | |
| AP-513, NUDOCS 9802110138 | |
| Download: ML20202B179 (17) | |
Text
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TG REV 09 AP-513 T0XIC GAS 1.0 ENTRY CONDITIONS E any of the following conditions exist:
IN FOR V ATIO N
- Toxic gr' is detected at CR-3 ONLY Toxit gcs is detected at Units 1 and 2 Notified by Fossil Unit of toxic gas that may affect ro -
IHfB usa this procedure, O
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J/ C DateSI'!8 Approved by MNPO
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AP-513 PACE 1 of 17 TG hDR O
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2.0 IMMEDIATE ACTIONS
. ACTIONS-DETAILS 2.1 Select both " CONTROL COMPLEX HVAC-
' ISOLATE / RESET" switches-to "1S0".
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-3.0 FOLLOW-UP ACTIONS
-ACTIONS DETAILS
- 3.1 Notify personnel-of plant.
STA L
conditions.
e Plant Operators e
SS00 (evaluate plant conditions for' potential entry into Emergency Plan) l e
Fossil Units e
TSC (if activated)
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3.0 FOLLOW-UP ACTIONS (CONT'D)
ACTIONS DETAILS CAUTION With all CC ventilation stopped, the CC may reach its design limit of 95** in as little as 30 minutes.
?.2 Verify all CC dampers properl) aligned.
AHD-12 closed AHD-120 closed AHD-2C closed AHD-2E closed 5
AHD-1C
_ _ closed AHD-lE closed O\\d AHD-3 open
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1F_ AHD-3 closed, AHF-17A AHF-17B JHf3 stop all CC supply and return fans.
AHF-18A AHF-18B AHF-19A AHF-19B AP-Si3 REV 09 PAGE 7 of 17 TG
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3.0 i2JLLOW-UP ACTIONS (CONT'D) g
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ET10NS DETAILS 3.3 JF at any time, Control Room atmosphere becomes AHF-17A AHF-178 uninhabitable, IHEN stop all CC supply
- AHF-18A AHF-18B and return fans and don air packs.
AHF-19A AHF-193 RQIE If AHF-20A cc AHF-208 were running in slow speed when toxic gas actuated. AHF-44A, AHF-448 and AHF-30 will remain available.
3.4 IE AHF-20A, AND AHF-20B are stopped, AHF-44A IREN ensure all auxiliary fans are stopped.
AHF-44B l
AHF-30 O
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AD,911 cable carry-over steps:
l f's 3.3 If Control lioom atmoJphere becomes uninhabitable...
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?.0 FOLLOW-UP ACTIONS (CONT'D)
ACTIONS DETAlls 3.5
.Deteraine the cause and
- Notify PPO to report local toxic gas location of the toxic gas monitor indications (164 ft CC south actuation, wall):
AH-648-CE AH-652-CE AH-649-CE AH-653-CE o Review the following computer group 9 computer points:
S263-Train A Cl 2 S297 Train B C1, S298. Train A S0, S299 Train B S02 o Notify Health Physics to sample the following areas-for toxic gas:
Control Complex Berm Area i
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Appliceble carry-over steps:
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11 Control Room atmosphere becomes uninhabitable...
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.v 3.0 FOLLOW-UP ACTIONS.(CONT'D)
ACTIONS DETAILS 3.6 Evacuate affected areas as 1 Determine area evacuation based on required.
the following:
Source of toxic' gas Atmospheric conditions Inhabited or not Evacuation route l
2 IE evacuation is required, IEW perform the following:
. Depress appropriate evacuation alarm push button if required.
Notify plant personnel over PA.
Repeat PA announcement.
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'3.7
)ELW Health Physics IE toxic gas monitors are in reports outside atmosphere
- alarm, toxir gas concentration IH W purge toxic gas from has owered to safe.
intake duct by performing the
- levels, following steps in order:
JH W purge CC intake duct 1 required.
Select " DAMPER OVERRIDE" switch to "0N".
Adjust "CNTRL COMPLEX RECIRC DNPR"
. potentiometer to "10" (Full Flow) position.
)LHfB toxic gas monitor alarms reset, IEW place "CNTRL COMPLEX RECIRC DMPR" in "0" position.
Select "DAPDER OVERRIDE" switch to "0FF".
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3.0 FOLLOW-UP ACTIONS (CONT'D)
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ACTIONS DETAILS w_-
3.8 Restore CC ventilation to 1 Ensure only one train of CC normal.
ventilation operating:
A Train B Train AHF-17A AHF-17B AHF-19A AHF-198 2
Select both " CONTROL COMPLEX HVAC ISOLATE / RESET" switches to " RESET".
3 Ensure dampers properly reposition:
Closed AHD-2C Open AHD-2E AHD-lC i/
AHD-lE 4 Ensure only one train of ventilation operating:
A Train B Train AHF-20A AHF-20B AHF-44A AHF-44B AHF-30 AHF-30 5
Verify AHD-12 open.
6 Verify AHD-12D open.
7 Ensure AH-32-FIR, Channel A indicates = 35,000 scfm.
(a 4
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e 3.0 FOLLOW-UP ACTIONS (CONT'D)
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ACTIONS DETAILS 3.9 EXIT this procedure.
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