ML20138K643
| ML20138K643 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 01/30/1997 |
| From: | WISCONSIN ELECTRIC POWER CO. |
| To: | |
| Shared Package | |
| ML20138K159 | List:
|
| References | |
| PC-77, NUDOCS 9702190080 | |
| Download: ML20138K643 (4) | |
Text
NUCLEARPOWER BUSINESS UNIT PC 77 PART 4 C PERATIONS PERIODIC CHECKS MINOR Revision 5 i
ANNUAL AUTOMATIC DRY-PIPE FIRE PROTECTION January 30,1997 SYSTEM VALVE TRIP-TEST AND ALARM VERIFICATION TEST Date RECORD DSS PROCEDURE VERHED CURRENT AND CHECKED FOR TEMPORARY CHANGES !F FIELD COPIES REQUIRED. USE PBF-0026i 1AW NP 124 AND DO EQI COMPLETE TICS BLOCK g3 BY:
DATE:
1.0 PURPOSE This test will verify, on an annual basis, that the Warehouse No. 2 automatic fire suppression system alarms operate satisfactorily and that the dry-pipe valve functions properly.
2.0 REFERENCES
IR 96-006, NRC Inspection Report; NRC Commitment for Operations procedures PMT/QC reviews.
3.0 PRECAUTION AND LIMITATIONS
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3.1 k
Persons conducting this test should be extremely cautious when working around energized electrical equipment and moving parts of valves to avoid personal injury.
3.2 Manually-operated isolation valves should always be operated relatively slowly to minimize the probability of creating a water hammer.
3.3 Never use oil or grease on a deluge or dry-pipe valve clapper or seat ring; unless specified by manufacturer and never clean the seat ring with materials or instruments that would permanently mar the soft material.
3.4 As a guideline, the dry-pipe valve should trip within 60 seconds after opening the test valve.
1 4.0 DISCUSSION 4.1 Post-maintenance or special surveillance testing may be conducted as required on only a i
portion of the checklist as directed by the Coordinator Fire Protection and Safety and the duty shift superintendent.
4.2 The following equipment will be required to complete this test:
4.2.1 Set ofwrenches.
.\\s 4.2.2 FM radic2.
4 4.2.3 Calibrated stop watch.
9702190080 970210 i Page1 of4 REFERENCE USE PDR ADOCK 05000301-P PDR,
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1 NUCLEAR POWER BUSINESS UNIT PC 77 PART 4 OPERATIONS PERIODIC CHECKS MINOR Revision 5 ANNUAL AUTOMATIC DRY-PIPE FIRE PROTECTION January 30,1997 SYSTEM VALVE TRIP-TEST AND ALARM VERIFICATION TEST 5.0 INITIAL CONDITIONS Cire water inlet temperature is s45'F or service water system chlorination is in progress.
INITIALS 6.0 PROCEDURE Complete the following steps for each system and initial or provide the requested information in the appropriate blanks. Record deficiencies or problems in the remarks section, along with any WO numbers.
6.1 Contact the duty shift superintendent and obtain permission to start this test.
DSS 6.2 Ensure the stop watch has been calibrated within the past 15 months.
Record the nun:ber and date below:
Watch No.
Calibration Date 6.3 Start the electric motor-driven fire pump.
64 Fully open the main drain and allow to flow for at least one minute.
6.5 Fully shut the main drain.
6.6 Fully open the inspector's test connection at the remote end of the system.
Record the elapsed time required to trip the valve and obtain water flow through the test connection; also record the air pressure at which the valve tripped. Allow the system to operate for 5 minutes. Verify alarms at D400, C900 and C01.
Valve trip (clapsed time) sec.
Weter flow (elapsed time) sec.
C01, C900 & D400 alarms annunciated sec.
Air pressure psig Page 2 of 4 REFERENCE USE O
NUCLEAR POWER BUSINESS UNIT PC 77 PART 4 OPERATIONS PERIODIC CHECKS MINOR Revision 5 ANNUAL AUTOMATIC DRY-PIPE FIRE PROTECTION January 30,1997 SYSTEM VALVE TRIP-TEST AND ALARM VERIFICATION TEST INITIALS 6.7 Fully shut the isolation valve and the compressed air supply valve.
I 6.8 Fully open the main drain and allow the system to drain, ensuring that all l
low points are drained.
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6.9 Fully shut the main drain valve and the test connection.
6.10 Remove the bolted cover plate. Inspect and remove any foreign matter from the rubber clapper facing and clean the seat-ring with bare fingers.
Replace the rubber facing if deteriorated or damaged. Clean any j
accumulation of sediment or foreign material from inside the valve body.
6.11 Reset the clapper into the set position and replace the cover plate.
t 6.12 Open the small drain valve located on the compressed air supply linejust
{
i upstream of the point the line enters the valve body, then supply priming water through the priming pot or valved supply line until water is discharged from the small drain valve.
4 6.13 Shut the supply piping valves and the drain valve when water has ceased to 1
flow from it.
1 6.14 Reopen the air supply line and allow the pressure to increase in the system.
6.15 Reopen the main drain valve and then slowly open the isolation valve.
6.16 Slowly close the main drain valve to minimize pressure surges on the 3
dry-pipe valve.
6.17 Ensure that all sprinklers and spray nozzles aie free ofpaint, corrosion, i
damage or physical defect. Also verify that remaining system components are also free ofdamage or defect.
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6.18 Red lock FP-190 in the open position and record the number:
Red Lock No.
1 Page 3 of4 REFERENCE USE
NUCLEAR POWER BUSINESS UNIT PC 77 PART 4 OPERATIONS PERIODIC CHECKS MINOR Revision 5 ANNUAL AUTOMATIC DRY-PIPE FIRE PROTECTION January 30,1997 SYSTEM VALVE TRIP-TEST AND ALARM VERIFICATION TEST INITIALS PMT 6.19 SNOOP check bolted cover plate for leakage at system pressure 6.20 Clear all alarms. Secure the fire pump when completed.
Fire pump secured, alarms clear, conditions normal 6.21 Notify the Chemistry group that fire system flow is secured and chlorination is no longer required to support fire system testing. This step is N/A if chlorination was not required.
Remarks:
O O
Page 4 of 4 REFERENCE USE
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