ML17250A581: Difference between revisions

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Plant may be at the Hot or Cold Shutdown status.4.2 4.3 The Recirculation Fan Units may be operated as desired by testing personnel.
Plant may be at the Hot or Cold Shutdown status.4.2 4.3 The Recirculation Fan Units may be operated as desired by testing personnel.
The exterior air inlet surface and roughing filters are free of dust accumulation.
The exterior air inlet surface and roughing filters are free of dust accumulation.
 
4.4 Vendor certification required by purchase order prior to start of work has been submitted and found to be accept-able.P.O.8 QC Supervision.e 4.5 4.6 A sufficiently charged nitrogen bottle and/or pressurized air supply, with suitable pressure regulator is available.
===4.4 Vendor===
certification required by purchase order prior to start of work has been submitted and found to be accept-able.P.O.8 QC Supervision.e 4.5 4.6 A sufficiently charged nitrogen bottle and/or pressurized air supply, with suitable pressure regulator is available.
A Health Physics Work Permit has been issued for the job.  
A Health Physics Work Permit has been issued for the job.  


Line 38: Line 36:
Plant radiation protection practices will be observed at all times.5.2 Normal company work safety practices will be observed at all times.6.0 INSTRUCTIONS:
Plant radiation protection practices will be observed at all times.5.2 Normal company work safety practices will be observed at all times.6.0 INSTRUCTIONS:
NOTE: These instructions are common for all four Hepa banks and will be repeated when testing each indi-vidual unit.UNIT UNDERGOING TEST 6.1 Request operations to remove the desired'an from service and place control board operating selector switch in the"Pull-Stop" position.6.2 Ensure that properly filled out test tags are placed at the following locations.
NOTE: These instructions are common for all four Hepa banks and will be repeated when testing each indi-vidual unit.UNIT UNDERGOING TEST 6.1 Request operations to remove the desired'an from service and place control board operating selector switch in the"Pull-Stop" position.6.2 Ensure that properly filled out test tags are placed at the following locations.
 
6.2.1 Control board operating selector switch.6.2.2 Remote start station.6.3 Completely inspect Hepa filter bank installation, paying particular attention to the following:
====6.2.1 Control====
6.3.1 Defective filter cells (i.e., indication of flow through holes and separator condition.
board operating selector switch.6.2.2 Remote start station.6.3 Completely inspect Hepa filter bank installation, paying particular attention to the following:
6.3.2 Improperly installed gaskets and clamps.6.3.3 Air communication paths be-tween upstream and downstream plenum.(i.e., filter frame cracks, separation of mount-ing frame from plenum housing conduit and/or pipe passage-.ways).
 
====6.3.1 Defective====
filter cells (i.e., indication of flow through holes and separator condition.
 
====6.3.2 Improperly====
installed gaskets and clamps.6.3.3 Air communication paths be-tween upstream and downstream plenum.(i.e., filter frame cracks, separation of mount-ing frame from plenum housing conduit and/or pipe passage-.ways).
PT-26:3 UNIT UNDERGOING TEST A NOTE 1: Defective filter cells may be repaired if small poten-tial leakage paths are ob-served and filter separa-tors are not e~cessively damaged.(Replace filter units as required.)
PT-26:3 UNIT UNDERGOING TEST A NOTE 1: Defective filter cells may be repaired if small poten-tial leakage paths are ob-served and filter separa-tors are not e~cessively damaged.(Replace filter units as required.)
The repair (patching) of Hepa cells shall be made only with flame resistant sili-con sealer.NOTE 2: Other mechanical defects are to be weld patched and/or c'aulked.6.4 Start desired recircula-tion fan.Position (DOP)generator exterior to the air inlet plenum and pro-vide sufficient distance to assure a good mix of aerosol with air stream.Insert upstream and down-stream sampling hoses (Refer to attached sketch for sampling port location)into sampling ports.6.6 Verify that from each samp-ling point 1.0+.1 CFM air stream can be drawn by ana-lyzer to assure represen't-ative sampling.6.7 Start DOP generator to introduce DOP concentration into testing air stream.6.8 Adjust the Photometer to one hundred percent on a smoke sample pulled upstream of the Hepa filter bank.6.9 Zero the photometer, for stray light effects-Re-peat step 6.8 if necessary.
The repair (patching) of Hepa cells shall be made only with flame resistant sili-con sealer.NOTE 2: Other mechanical defects are to be weld patched and/or c'aulked.6.4 Start desired recircula-tion fan.Position (DOP)generator exterior to the air inlet plenum and pro-vide sufficient distance to assure a good mix of aerosol with air stream.Insert upstream and down-stream sampling hoses (Refer to attached sketch for sampling port location)into sampling ports.6.6 Verify that from each samp-ling point 1.0+.1 CFM air stream can be drawn by ana-lyzer to assure represen't-ative sampling.6.7 Start DOP generator to introduce DOP concentration into testing air stream.6.8 Adjust the Photometer to one hundred percent on a smoke sample pulled upstream of the Hepa filter bank.6.9 Zero the photometer, for stray light effects-Re-peat step 6.8 if necessary.

Revision as of 09:24, 6 May 2019

Containment Fan Recirculation Unit HEPA Filter Bank Testing.
ML17250A581
Person / Time
Site: Ginna Constellation icon.png
Issue date: 09/25/1978
From:
ROCHESTER GAS & ELECTRIC CORP.
To:
Shared Package
ML17250A560 List:
References
PT-26, NUDOCS 8009160580
Download: ML17250A581 (9)
v • d • e


Text

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~UNIT DEPA FILTER BANK TESTING Lz.C~lZC.~~

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PT-26: 1'PERIODIC TEST PT-26 CONTAINS LENT FAN RECIRCULATION UNXT HEPA FILTER BRAC TESTING 1.0 PURPOSE: To provide steps for Dioctyl Pthalate (DOP)testing of the Containment Fan Recirculation Hepa Filter Banks.2.0 2.1 That each Hepa Filter Bank tested will exhibit, a minimum efficiency of 99/based on the actual number of particles that penetrate the filter when the mixture of injected aerosol conforms in quantity and particle size as per reference 3.1 of this procedure.

3.0

3.1 REFERENCES

\ANSI H-101-197"Efficiency testing of air cleaning systems containing devices for removal of particles".

'8 3.3 Plant Technical Specifications -Sections 3.3.2.1, Items C and F;Section 4.5.2.3, Item D.Final Facility Description and Safety Analysis Report;Seciton 6.3.3.4 Nuclear Consulting Services, Procedure NUCON 040.4.0 4.1 INITIAL CONDITXONS:

Plant may be at the Hot or Cold Shutdown status.4.2 4.3 The Recirculation Fan Units may be operated as desired by testing personnel.

The exterior air inlet surface and roughing filters are free of dust accumulation.

4.4 Vendor certification required by purchase order prior to start of work has been submitted and found to be accept-able.P.O.8 QC Supervision.e 4.5 4.6 A sufficiently charged nitrogen bottle and/or pressurized air supply, with suitable pressure regulator is available.

A Health Physics Work Permit has been issued for the job.

PT-26: 2 S.O PRECAUTIONS:

Plant radiation protection practices will be observed at all times.5.2 Normal company work safety practices will be observed at all times.6.0 INSTRUCTIONS:

NOTE: These instructions are common for all four Hepa banks and will be repeated when testing each indi-vidual unit.UNIT UNDERGOING TEST 6.1 Request operations to remove the desired'an from service and place control board operating selector switch in the"Pull-Stop" position.6.2 Ensure that properly filled out test tags are placed at the following locations.

6.2.1 Control board operating selector switch.6.2.2 Remote start station.6.3 Completely inspect Hepa filter bank installation, paying particular attention to the following:

6.3.1 Defective filter cells (i.e., indication of flow through holes and separator condition.

6.3.2 Improperly installed gaskets and clamps.6.3.3 Air communication paths be-tween upstream and downstream plenum.(i.e., filter frame cracks, separation of mount-ing frame from plenum housing conduit and/or pipe passage-.ways).

PT-26:3 UNIT UNDERGOING TEST A NOTE 1: Defective filter cells may be repaired if small poten-tial leakage paths are ob-served and filter separa-tors are not e~cessively damaged.(Replace filter units as required.)

The repair (patching) of Hepa cells shall be made only with flame resistant sili-con sealer.NOTE 2: Other mechanical defects are to be weld patched and/or c'aulked.6.4 Start desired recircula-tion fan.Position (DOP)generator exterior to the air inlet plenum and pro-vide sufficient distance to assure a good mix of aerosol with air stream.Insert upstream and down-stream sampling hoses (Refer to attached sketch for sampling port location)into sampling ports.6.6 Verify that from each samp-ling point 1.0+.1 CFM air stream can be drawn by ana-lyzer to assure represen't-ative sampling.6.7 Start DOP generator to introduce DOP concentration into testing air stream.6.8 Adjust the Photometer to one hundred percent on a smoke sample pulled upstream of the Hepa filter bank.6.9 Zero the photometer, for stray light effects-Re-peat step 6.8 if necessary.

PT-26:4 UNIT UNDERGOING TEST B C Pull a sample from downstream of the Hepa filter bank and determine penetration of DOP aerosol.If the system shows the cor-rect efficiency, the Hepa bank tested is ready for service.If not, make necessary repairs and/or cell replacement and re test.a/Retest Corrective

'Actions and Comments.c~r Record the following and any other relevant observations for each unit tested.(l)Areas where leakage paths were repaired to assure satisfactory tests.(2)Quantity and location of Hepa filter cells which were replaced to assure satisfactory test.A UNIT B UNIT (C UNIT D UNIT r PT-26:6 COMPLETED BY: RG&E VENDOR: DATE COMPLETED:

SHIFT FORE~i RESULTS AND TEST'EVIEW:

DATE:

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