ML20247E662

Rev 10 to AP-250, Radiation Monitor Actuation

ML20247E662
Person / Time
Site:	Crystal River
Issue date:	04/30/1998
From:	Wilson I FLORIDA POWER CORP.
To:
References
AP-250, NUDOCS 9805180411
Download: ML20247E662 (24)

Text

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Document Transmittal #: 94476 Date: 5/4/98 To: NRC (DC DESK) MAC: N/A

, Destination:

Description:

l Copy Copy Totals Document: Revision: Comment: # INFO CNTL MSTR AP0250 10 MINOR CHANGE 7 1 0 0 l

I Instructions to the Addressee:

Please verify the document (s) received agrees with the above information.

Operations department must attach old document (s) or portions of document (s) superseded by the above I to this transmittal.

Q The signature indicates acknowledgment of receipt of the above document (s) and that documents have I been updated. Return signed and dated transmittal to Document Control within 15 working days of g ;

transmittal date to mail code: 0' NA1C j Fionda Power Corporation Document Control, NA1c Crystal River Energy complex l 15760 W. Power Line st.

Crystal River, FL 34428-6708 Signature of Addressee: Date:

9905100411 900430 PDR ADOCK 05000302 P PDR

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RMA REV 10 (MC) AP-250 0 RADIATION MONITOR ACTUATION 1.0 ENTRY CONDITIONS IE any of the following Atmospheric Radiation High alarms are actuated; I

e RM-Al e RM-A2 I

e RM-A3 9 o RM-A4

. RM-A5 ,

ONLY .

THEN use this procedure.

2.0 IMMEDIATE ACTIONS NOTE There are no immediate actions for this procedure.

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/2 k e Approved by MNP0 /[M/fdJate 04/30/98

'g "~ ' (SIGNATURE ON FILE)

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l 3.0 FOLLOW UP ACTIONS l

ACTIONS DETAILS 3.1 Ensure auto actions of )

affected radiation monitors occur.

See Table 1 l

l 3.2 Notify personnel of plant

• STA conditions.

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• Plant Operators

• NSM (evaluate plant conditions for potential entry into the Emergency Plan) 3.3 IF RM-Al Gas is actuated.

TREN stop RB purge fans. __ AHF-7A l (3 AHF-7B AHF-6A AHF-6B l

l CAUTION l With all CC ventilation stopped, the CC may reach its design limit of l 95*F in 30 minutes.

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l 3.4 JE RM-A5 is actuated.

_ AHF-17A AHF-17B AND AHD-3 is closed.

i THEN stop CC supply and return fans. __ AHF-18A AHF-18B l AHF-19A AHF-19B l

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3.0 FOLLOW UP ACTIONS (CONT'D)

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~.J ACTIONS DETAILS i

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 applicable Radiation Monitor Setpoint Log 5 Observe trends on other radiation monitors. if

(~'T applicable.

V IE alarm is NOT valid. 1 Select " ALARM Rr. SET OPERATE THEN determine corrective CHECK SOURCE" to the " ALARM action and GO TO Step 3.23 RESET" position.

in this procedure.

2 Initiate required repair efforts.

3 GO TO Step 3.23 in this procedure.

3.6 IE radiation monitor is off scale high.

THEN ensure " RANGE" switch selected to "1M setting.

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3.0 FOLLOW UP ACTIONS (CONT'D)

ACTIONS DETAILS 3.7 Notify Health Physics and Chemistry of radiation monitor actuation.

3.8 Evacuate affected areas. 1 Determine evacuation requirements of if required. affected area based on the following:

Radiation levels-Location Work being performed Health Physics input 2 IF evacuation is required.

THEN perform the following:

Depress appropriate (n -

evacuation alarm push button.

Notify plant personnel over PA.

Repeat PA announcement.

3.9 Review current Operation.

Maintenance, and Chemistry activities for any actions that may have caused the actuation.

l 3.10 Stop activities suspected of causing increased radiation levels and restore systems as  ;

i necessary.

%.)

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3.0 FOLLOW UP ACTIONS (CONT'D)

ACTIONS DETAILS l

! 3.11 E RM-Al Gas is NOT

! actuated.

l THEN GO TO Step 3.14 in l this procedure.

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3.12 E RM-Al Gas indicates or a]proaches off-scale high.

TlEN select RM-Al l "LMH VALVE CONTROLLER" l .

to "AUT0".

1 3.13 E main RB purge was e Notify Health Physics terminated. Supervisor.

t THEN perform compensatory l actions. e Notify NSM to ensure equipment j hatch is closed.

e Notify PP0 to ensure at least

, one personnel air lock door or

! temporary door is closed (Health Physics and Security may be required).

e Notify SP0 to ensure purge heaters l are de-energized (95 ft TB Unit l 480V SWGR Room)

480V HEATING AUX BUS 3-3A

l. "AHHE-16A A RB Purge Heating Coil" 480V HEATING AUX BUS 3-4A l "AHHE-16B B PB Purge Heating Coil" 3.14 E RM-A2 Gas is NOT actuated.

THEN GO TO Step 3.18 in this procedure.

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3.0 FOLLOW UP ACTIONS (CONT'D)

ACTIONS DETAILS l

l 3.15 E AB has NOT been e Notify PP0 to ensure AHF-34A evacuated. " HOT MACH. SHOP WELD. HOOD EXH THEN ensure AHF-34A is FAN" (119 ft AB Hot Machine stopped. Shop) is stopped.

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CAUTION If WGDTs are leaking into the AB, hydrogen concentrations may reach explosive levels.

l i 3.16 E AB has NOT been e Ensure WGDT outlet valves are closed i evacuated. (95 ft AB Rad Waste Panel):

THEN notify PPO to isolate WG system. WDV-436 WDV-437 WDV-438 e Ensure WG header to vent valves are closed:

WDV-489 "SW Surge Tank Vent to l

WG Iso" (95 ft AB Sea Water Room above DCT-1B) i WDV-337 "ECST Vent to WG Iso" (143 ft AB behind WDT-10A) l 3.17 E RM-A2 Gas indicates or approaches off-scale high. l THEN select RM-A2 "LMH l VALVE CONTROLLER" to i l "AUT0" O

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3,0 FOLLOW UP ACTIONS (CONT'0)

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v ACTIONS DETAILS 3.18 E RM-A3 Gas is actuated.

• Notify PPO to verify closing air AND AB has NOT been pressure > 17 psig on AH-825-PI evacuated. "D 29 D 36 AIR TO CLOSE" THEN verify dampers D 29 (143 ft AB Panel-15AB).

and D 36 are closed.

3.19 E RM-A5 is NOT actuated.

THEN GO TO Step 3.23 in i this procedure.

NOTE Chemistry sample fans can operate while RM-A5 Gas is actuated when AHF-20A or AHF-208 is running in slow speed.

/7 3.20 E AHF-20A and AHF-20B are AHF-44A

() stopped.

THEN ensure chemistry sampling 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-18B AHF-19A AHF-19B g) l_

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3.0 FOLLOW UP ACTIONS (CONT'D) l

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w; ACTIONS DETAILS j 3.22 WHEN CC air has a nigher 1 Select " DAMPER OVERRIDE" switch activity than outside air. to "0N" THEN override RM-A5 actuation. 2 Adjust "CNTRL COMPLEX RECIRC l DMPR" potentiometer to the "10"  ;

(Full Flow) position. l l

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3.23 WHEN radiation monitor can

• Select " ALARM RESET" for the l be reset, affected radiation monitor:

THEN reset monitor.

RM-Al l RM-42 l RM-A3 RM-A4 e' RM-A5 f

V) 3.24 IE any of the following

• OP-409. Plant Ventilation radiation monitors have System. Section 4.4 been reset:

• OP-417. Containment Operating RM-Al Procedure, either of the following:

RM-A2 Section 4.5, Reactor Bldg Purge RM-A3 Section 4.7, RB Pressure Equalization / Mini-Purge Under RM-A4 Non-Accident Conditions AND plant ventilation or

• EM-225A. Post Accident RB RB purge restoration is Hydrogen Control, as directed required, by TSC.

THEN see the appropriate plant procedure (s).

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3.0 FOLLOW UP ACTIONS (CONT'D)

ACTIONS DETAILS 3.25 IE RM-A5 was reset. 1 Place "CNTRL COMPLEX RECIRC AND " DAMPER OVERRIDE" DMPR" in "0" (Full Recirc) switch is "0N". position.

THEN restore CC Recirc Damper to normal. 2 Select " DAMPER OVERRIDE" switch to "0FF".

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3.0 FOLLOW UP ACTIONS (CONT'D)

ACTIONS DETAILS 3.26 JF RM-A5 was reset. 1 Ensure Only one train of CC THEN restore CC ventilation operating:

ventilation to normal.

A Train B Train AHF-17A AHF-17B AHF-19A AHF-19B 2 Select both " CONTROL COMPLEX HVAC ISOLATE / RESET" switches'to

" RESET".

3 Ensure dampers properly reposition:

Closed AHD-2C Open AHD-2E )

AHD-1C AHD-1E l

l 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-032-FIR. Channel A indicates = 35.000 cfm.

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1 3.0 FOLLOW UP ACTIONS (CONT'D)

ACTIONS DETAILS l

3.27 EXIT this procedure.

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RM Al Gas Closed: AHV 1C AHV 1A l

AHV 1B AHV 1D LRV 70 LRV 73 LRV 72 LRV 71 RM A2 Gas Stopped: AHF 30 AHF-9A AHF-11A AHF 10 l

AHF 11B AHF-98 l

AHV 3 Table 1: RM A3 RM Auto Actions Stopped: AHF 11A __ M 118 I RM A4 Stopped: AHF 10 RM A5 Gas or Iodine Closed: AHD 12 AHD 2E AHD 12D AHD 1C

_ _ AHD 2C AHD 1E Open: AHD 3 Stopped: AHF 17A AHF 17B AHF 19A AHF 19B 1

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