ML20202B146
| ML20202B146 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 02/04/1998 |
| From: | FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML20202B132 | List: |
| References | |
| AP-250, NUDOCS 9802110129 | |
| Download: ML20202B146 (23) | |
Text
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RMA REV 08 AP-250 b
RADIATION MONITOR ACTUATION 1.0 ENTRY CONDITIONS lE any of the following Atmospheric Radiation High alarms are actuated:
e RM-Al e RM A2 e RM-A3
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[N FORMATION as-^*
""-^5 ONLY _
IhD use this procedure, i
2.0 IMMEDIATE ACTIONS
>(s MDIE There are no immediate actions for this procedure, 8%
n Approved by MNP0
/
Tha Date2/9/96 h,e (SIGNATp4EyFILE)
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3.0 FOLLOW-UP ACTIONS ACTIONS DETAILS 3.1 Ensure auto actions of affected radiation
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monitors occur.
See Table 1 3.2 Notify persor.nel of plant STA E
conditions.
Plant Operators SS00 (evaluate plant conditions for potential entry into the Emergency Plan) 3.3 E RM-Al Gas is actuated, i
111@ stop RB purge fans.
1 AHF-7A AHF-78 AHF-6A AHF-6B CAUTION With all CC ventilation stopped, the CC may reach it's design limit of 9F F in as little as 30 minutes.
i 3.4 JF RM-A5 is actuated, a@ AHD-3 closed, AHF-17A AHF-17B lti@ stop CC supply and return fans.
AHF-18A AHF-18B AHF-19A AHF-19B O
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't 3.0 FOLLOW-UP ACTIONS (CONT'D)
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ACTIONS DETAltS 3.5 Verify alarm is valid.
1 Depress the affected radiation monitor remote " HORN SILENCE" push button.
2 Ensure radiation monitor is energized.
3 Ensure " ALARM RESET OPERATE CHECK SOURCE" switch is in the "0PERATE" position.
4 Ensure proper alarm setpoints:
RM-Al and RM-A2 per the applicable Release Permit RM A3, RM-A4, and RM-A5 per the l
applicable Radiation Monitor g~
Setpoint Log 1
L 5
Observe trends on other radiation monitors if
. appl i cabl e..
E alarm is NOT valid, 1
Select " ALARM RESET OPERATE determine corrective CHECK SOURCE" to the." ALARM action and GO TO Step 3.23 RESET" position.
in this proce' dure.
2
-Initiate required repair efforts.
3-60 TO Step 3.23 ir this procedure.
3.6 E radiation monitor is off scale high, JHEB ensure " RANGE" switch selected to "lM" setting.
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3.0 FOLLOW-ljP ACTIONS (CONT'DF
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ACTIONS DETAILS
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3.7 Notify Health Physics and-Chemistry of radiation monitor actuation.
3.8 Evacuate affected areas if 1 Determine evacuation requirement
- required, based on the following:
Radiation level of affected area 4
Location of affected area Work being performed in affected area-Health Physics input 2
1E evacuation is required, IHfB perform the following:
.("'N Depress-appropriate-(,,)
evacuation alarm push' button.
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Notify plant personnel over PA.
Repeat PA announcement.
i 3.9 Review current Operation, Maintenance, and Chemistry activities for-any actions that may have caused the actuation.
i 3.10 Stop actfvities suspected of being the cause of the increased radiation levels and restore-the system as
,s necessary.
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-3.0 FOLLOW-UP ACTIONS (CONT'D)
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ACTIONS DETAILS 3.11__ If'RM Al Gas HQI actuated, IBIN GO TO Step 3.14 in this procedure.
3.12 1[ RM-Al Gas indicates or approaches off-scale high, IBIN select RM-Al "LMH VALVE CONTROLLER" to "AUT0".
3.13 1E main RB purge was Notify Health Physics terminated, Supervisor.
JBIN perform compensatory actions.
Notify NSM to ensure equipment i
hatch is closed.
Notify PP0 to ensure at least s
l one personnel air lock door or a temporary' door is closed.
e Notify SP0 to ensure purge heaters are de-energized (95 ft TB Unit 480V SWGR Room):
480V Heating Aux Bus-3A "AHHE-16A, A RB Purge Heating coil" 480V Heating: Aux Bus-4A "AHHE-16B, B RB Purge Heating Coil" 3.14 IE RM-A2 Gas NOT actuated, IBfB GO TO Step 3.18 in this procedure.
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3.0 FOLL_0W-UP ACTIONS (CONT'D)
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ACTIONS DETAILS 3.15 E AB has MI been Notify PPO to ensure AHF-34A evacuated,
" Hot Machine Shop Weld Hood THEN ensure AHF-34A "Ho?
Exhaust Fan" (119 ft AB Hot Maci ne Shop Weld Hood Machine Shop) is stopped.
Exhaust Fan" is stopped.
CAUTION If WGDTs are leaking into the AB, hydrogen concentrations may reach explosive levels.
l i
3.16 E AB has NOT been
- Notify PPO to ensure the following l
evacuated, valves are closed:
EG ensure WGDT outlet valves and WG header to WDV-436 (95 ft AB Rad Waste plant vent isolation Panel) valves are closed.
WDV-437 195 ft AB Rad Waste
,y Panel)
WDV-4e (95 ft AB Rad Waste Panel)
WDV-489 "SW Surge Tank Vent to WG Iso" (95 ft AB Sea Water room)
WDV-337 "ECST Vent to WG Iso" (143 ft AB behind 'A' ECST) 3.17 E RM-A2 Gas indicates or approaches off-scale high, THEN select RM-A2 "LMH VALVE CONTROLLER" to "AUT0".
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.s 3.0 FOLLOW-UP ACTIONS (CONT'D)
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ACTIONS DETAILS 3.18 If RM-A3 Gas is actuated, e Notify PPO to _ verify closing air _
AND the AB has HQI been pressure > 17 psig on "AH-825-PI" evacuated, _
(143 ft AB Panel-15AB).
IBEN verify dampers D-29 and D-36 are closed.
_3.19 IE RM-A5 is 801 actuated, IHEH GO TO Step 3.23 in this procedure.
HQlE If AHF-20A or AHF-20B were running in slow speed when RM-A5 Gas actuated, AHF-44A, AHF-448 and AHF-30 will remain available.
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- 3. 20 __ lE AHF-20A and AHF-20B are
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- stopped, AHF-44A IHEN ensure all auxiliary fans'are stopped.
AHF-30 AHF-44B 3.21 Establish CC ventilation 1
Ensure AHD-3 is open.
in emergency recirc.
2 Ensure only one train of CC ventilation running:
A Train B Train AHF-18A AHF-188 AHF-19A AHF-19B O
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3.0 F0LLOW-UP ACTIONS (CONT'D)
ACTIONS DETAILS 3.22 M CC air has a-higher 1
Select " DAMPER OVERRIDE" switch activity than outside air, to "0N".
E override RM-A5 actuation.
2 _ _ Adjust "CNTRL COMPLEX RECIRC DMPR" potentiometer to the "10" (Full Flow) position.
3.23 M radiation monitor can e Select " ALARM RESET" for the be reset,-
affected radiation monitor:
M reset monitor.
RM-Al RM-A2 RM-A3 RM-A4 l-Os RM-A5 q
f!
3.24 IE any of the following OP-409, Plant Ventilation radiation monitors-have Operating Procedure, Section 4.4 been reset:
e OP-417, Containment Operating RM-Al Procedure, either:
RM A2 Section 4.5, Reactor Bldg Purge RM-A3 Section 4.7, RB Pressure RM-A4 Equalization / Mini-Purge Under-Non-Accident Conditions AND plam ventilation or Section 4.9, Post-Accident RB purge restoration is Reactor Bldg Purge
- required, M see the appropriate plant procedure (s).
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4 3.0 FOLLOW-UP ACTIONS (CONT'D) i
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ACTIONS DETAILS
'u.J 3.25
,1f RM-A5 was reset, 1
Place "CNTRL COMPLEX RECIRC 6!iQ " DAMPER OVERRIDE" DMPR" in "0" (Fuli Recirc) switch is "0N",
position.
IdQ re ; ore CC Recirc Damper to normal.
2 Select " DAMPER OVERRIDE" switch to "0FF".
(~5 L,)
s^g
,.)
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i 3.0 FOLLOW UP ACTIONS (CONT'D)
AC.11QRS DETAILS l
3.26 IE RM A5 was resut, 1 Ensure only one train of CC 4
JE 8 restore CC ventilation operating:
ventilation-to normal.
i l
A Train B Train
)
AHF-17A AHF-17B j
AHF-19A AHF 19B j.
e 2
Select both " CONTROL COMPLEX HVAC ISOLATE / RESET" switches to 3
" RESET".
.3 Ensure dampers properly reposition:
m closed AHD 2C 1
Open
-AHD-2E AHD-lc O
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AHD-lE 1
4 Ensure only one train of ventilation operating:
1 A Train B Train AHF-20A
. AHF 20B c
AHF-44A AHF-443 1
AHF-30 AHF-30 I
5 Verify AHD 12 oran.
6 Verify AHD 120 open.
7 Ensure AH 32-FIR, Channel A indicates = 35,000 scfm.
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i 3.0 FOLLOW-UP ACTIONS (CONT'D:
ACTIONS DETAILS 3.27 _ EXIT this procedure.
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1 RM-Al Gas i
{)
Closed:
AHV-lC AHV 1A AHV 1B AHV-ID 4
LRV LRV 73
)
i
___ LRV 72 LRV-71' 1
RM A2 Gas Stopped:
AHF 30-AHF-9A l
l
_AHF-llA AHF-10 AHF-llB AHF-98 4
AHV 3 3
Table 1:
RM-A3 RM Auto Actions
~
Stopped:
AHF-llA
___ AHF llB O
RM-A4 Stopped:
AHF-10 F,M-A5 Gas or lodine Closed:
AHD-12 AHD 2E
-AHD-120 AHD lc t
AHD-2C AHD-lE 9
Open:
AHD-3 Stopped:
AHF-17A
. _ AHF-17B' AHF-19A-
__. AHF-198
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