ML17264A202

Rev 3 to Procedure PT-2.3.1M, Post Accident Charcoal Filter Dampers - Monthly.

ML17264A202
Person / Time
Site:	Ginna
Issue date:	11/02/1994
From:	Marlow T ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17264A201	List: ML17264A200 ML17264A202 ML17264A203 ML17264A204 ML17264A205 ML17264A206 ML17264A207 ML17264A208
References
PT-2.3.1M, NUDOCS 9510260339
Download: ML17264A202 (7)

Text

I ROCHESTER GAS AND ELECTRIC CORPORATION GINNA STATION CONTROLLED COPY NUMBER PROCEDURE NO. PT-2.3.1M REV. NO. 3 POST ACCIDENT CHARCOAL FILTER DAMPERS - MONTHLY TECHNICAL REVIEW PORC REVIEW DATE (0 PLANT SUPERINTENDENT u-F-EFFECTIVE DATE CATEGORY 1.0 REVIEWED BY:

GINNA STATlON THIS PROCEDURE CONTAINS 6 PAGES START:

DATE TlME COMPLETED:

DATE TlME:

9510260339 951018 PDR ADOCK 05000244

. P.

PDR

PT-2.3.1M:1 PT-2.3 1M POST ACCIDENT CHARCOAL FILTER DAMPERS MONTHLY 1.0 PURPOSE To provide instructions for verifying operability of the dampers associated with the Containment Recirc-ulation Fan charcoal filter flow paths.

1.2 To provide instructions for performing the monthly inspection of the Containment Recirculation Units.

2.0 TEST RE UIREMIBFZS:

2.1 To exercise each damper through a complete stroking cycle.

2.2 To operate each Post Accident Charcoal Filter Unit in the Recirc Mode for at least fifteen minutes.

2.3 To inspect each Containment Recirculation Unit for signs of water within the filtration area.

2.4 To inspect each Containment Recirculation Unit Demister Unit for combustibility.

2.5 To verify operability and proper orientation and flow in the accident mode.

3.0 REFERENCES

3.1 33013-1863, Containment HVAC Systems.

3.2 Tech. Specs. Section 4.5.2.3.5.

3.3 S-23.5, Post Accident Charcoal Filter Operation.

3.4 ANSI N510-1989 [Applies only to Demister (Moisture Separators) Unit Combustibility visual inspections]

Section 5.5.1.6.

4.0 INITIAL CONDITIONS:

4.1 Damper surveillance may be performed during any plant operating mode.

PT-2.3.1M:2 4.2 Notify Shift Supervisor at start of test.

4.3 Notify Head Control Operator at start of test.

Any abnormality or erratic damper action observed during performance of procedure shall be noted. A Work Request/Trouble Report shall be submitted for the concerned damper.

4.5 Test personnel are qualified in accordance with A-1102.

4.6 A Health Physics Work Permit has been issued by HP Department, to permit Containment entry and/or Recirculation Unit inspection.

4.7 If this procedure is being performed as an unscheduled test or following maintenance, initial those sections being completed and mark the remainder N/A.

4.8 Notify Q.C. Dept. at start of test.

4.9 Prior to start of testing, notify Diagnostic Testing Group that required equipment monitoring associated with the CNMT Recirculation Fans shall be performed.

5 0

~ PRECAUTIONS:

5.1 Only one group of Containment Recirc dampers shall be tested at a time.

5.2 Observe all requirements of the Health Physics Work Permit for Containment entry.

5.3 The Shift Supervisor shall be notified immediately if any acceptance criteria is not met or any malfunction or abnormal conditions occur.

6.0 INSTRUCTIONS.

6.1 1A Recirculation Fan Dam ers 6.1.1 Verify or place the 1A Containment Recirc Fan in service.

PT-2.3.1M:3 6.1.2 Visually verify the following damper positions:

6.1.2.1 1F-LED (5873), Loop Entry Damper OPEN 6.1.2.2 1I-CID (5871), Charcoal Unit Inlet CLOSED 6.1.2.3 1K-COD (5872), Charcoal Unit Outlet CLOSED 6.1.3 At the MCB, verify the Green indicating light, "CHARCOAL FILTER 1A DAMPERS CLOSED" is ON.

NOTE: CF1A/L is a latch in relay, located in Relay Room, Rack RA2 Front 6.1.4 Press in CF1A/L relay armature button.

6.1.5 Visually verify the following damper positions:

6.1.5.1 1F-LED (5873), Loop Entry Damper CLOSED 6.1.5.2 1I-CID (5871), Charcoal Unit Inlet OPEN 6.1.5.3 1K-COD (5872), Charcoal Unit Outlet OPEN 6.1.6 At the MCB, verify the- Green indicating light, "CHARCOAL FILTER 1A DAMPERS CLOSED" is OFF.

6.1.7 Record time dampers switched to Recirc Mode.

hr.

NOTE: Fan must operate in Recirc Mode for at least fifteen minutes to satisfy Tech Spec requirements.

6.1.8 After at least fifteen minutes of Recirc Mode operation, press CFlA/L relay RESET button.

6.1.9 Visually verify the following damper positions:

6.1.9.1 1F-LED (5873), Loop Entry Damper OPEN 6.1.9.2 1I-CID (5871), Charcoal Unit Inlet CLOSED 6.1.9.3 1K-COD (5872), Charcoal Unit Outlet CLOSED 6.1.10 At the MCB, verify the Green indicating light.

"CHARCOAL FILTER 1A DAMPERS CLOSED" is ON.

PT-2.3.1M:4 6.1.11 Record time dampers switched to Normal Mode.

hr.

6.1.12 Record Post Accident Filter run time in S-23.5 located on back of MCB.

6.2 1C Recirculation Fan Dam ers 6.2.1 Verify or place the 1C Containment Recirc Fan in service.

6.2.2 Visually verify the following damper positions:

6.2.2.1 1H-LED (5875), Loop Entry Damper OPEN 6.2.2.2 1J-CID (5876), Charcoal Unit Inlet CLOSED 6.2.2.3 1L-COD (5874), Charcoal Unit Outlet CLOSED 6.2.3 At the MCB, verify the Green indicating light, "CHARCOAL FILTER 1C DAMPERS CLOSED" is ON.

NOTE: CF1C/L is a latch in relay, located in Relay Room, Rack RA3 Front 6.2.4 Press in CF1C/L relay armature button.

6.2.5 Visually verify the following damper positions:

6.2.5.1 1H-LED (5875), Loop Entry Damper CLOSED 6.2.5.2 1J-CID (5876), Charcoal Unit Inlet OPEN 6.2.5.3 1L-COD (5874), Charcoal Unit Outlet OPEN

'6.2.6 At the MCB, verify the Green indicating light, "CHARCOAL FILTER 1C DAMPERS CLOSED" is OFF.

6.2.7 Record time dampers switched to Recirc Mode.

hr.

NOTE: Fan must operate in Recirc Mode for at least fifteen minutes to satisfy Tech Spec requirements.

6.2,8 After at least fifteen minutes of Recirc Mode operation, press CF1C/L relay RESET button.

PT-2.3.1M:5 6.2.9 Visually verify the following damper positions:

6.2.9.1 1H-LED (5875), Loop Entry Damper OPEN 6.2.9.2 1J-CID (5876), Charcoal Unit Inlet CLOSED 6.2.9.3 1L-COD (5874),, Charcoal Unit Outlet CLOSED 6.2.10 At the MCB, verify the Green indicating light, "CHARCOAL FILTER 1C DAMPERS CLOSED" is ON.

6.2.11 Record time dampers switched to Normal Mode.

hr.

6.2.12 Record Post Accident Filter run time in S-23.5 located on back of MCB.

6.3 Monthl Xns ection of Containment Recirc Units 6.3.1 Xnspect each of the following as per Attachment 1, Containment Recirc Unit Monthly Xnspection Check List.

6.3.1.1 Recirc Unit A 6.3.1.2 Recirc Unit B 6.3.1.3 Recirc Unit C 6.3.1.4 Recirc Unit D COMMENTS:

COMPLETED BY:

DATE COMPLETED:

HEAD CONTROL OPERATOR:

SHIFT SUPERVISOR:

RESULTS 2 TEST REVIEW: DATE

PT-2.3.1M:6 ATTACHMENT 1 Containment Recirc Unit Monthl Ins ection Check List Unit D

1. Ensure Recirc Fan Unit is not in operation.

2. Ensure each drain free of foreign material.

3. Inspect fan chiller piping area for possible service water leaks.

4. Inspect HEPT filter section for evidence of water

~

about floor area and any water damage to HEPA filter units.

a)

5. Inspect Demister Unit for combustibility utilizing the following criteria:

a) No visual evidence of b) dirt or debris loading.

b) No visual evidence of oil or foreign materials susceptible to combustion.

6. Request start of fan unit and record HEPA Filter Delta P on Magnehelic (must be less than 3" H20)

7. Remove fan units from service which are not needed at this time.

8. Submit a Work Request/Trouble noted.

Report if any discrepancies are COMPLETED BY:

DATE COMPLETED: