Main switchboard

• National Gallery of Victoria

  Select

• Conducted on

  Date

• Prepared by

• Location
  Address

• Yes

  No

  N/A

• Attachment F – Preventative Maintenance Schedules

  Yes

  No

  N/A

• 1. MAIN SWITCHBOARD 1- 6 Monthly

  Yes

  No

  N/A

• Inspection/Test/Maintenance Action

  Media

• Measurement/Test Result/CommentWarning: Some of the following tests and inspections require the operator access to live compartments of the switchboard. It is absolutely imperative that panels which directly access bus bars, etc. Are not removed whilst the switchboard is alive.Safe working practices must be observed at all times

  Yes

  No

  N/A

• Safe working practices must be observed at all times

  Yes

  No

  N/A

• Ensure all generator inhibit switches are in the off position and report irregular switch positions

  Yes

  No

  N/A

• Inspect all meters and record amps and watts

• Visual inspection of incoming supply bus duct

  Yes

  No

  N/A

• Record amps of outgoing circuits with tong tester

• Record amps of outgoing circuits with tong tester

• Confirm protection settings have not been altered by other than authorised personal, metering and trip history records of the Air Circuit Breakers

  Yes

  No

  N/A

• Examine general condition of switchboard, for example, operation of door hardware, paintwork, etc., and report signs of undue corrosion

  Yes

  No

  N/A

• Tidy switchboard area and report general operating condition

  Yes

  No

  N/A

• Ensure a reasonable supply of spare fuses and indicator lamps are held in stock. The minimum number of spares shall be:

• Indicator lamps 3 of each type

  Yes

  No

  N/A

• HRC fuse cartridges 3 of each rating and type including

  Yes

  No

  N/A

• fault current limiters

  Yes

  No

  N/A

MAIN SWITCHBOARD 2- 6Monthly

• Ensure all generator inhibit switches are in the off position and report irregular switch positions

  Yes

  No

  N/A

• Inspect all meters and record amps and watts

• Visual inspection of incoming supply bus duct

  Yes

  No

  N/A

• Record amps of outgoing circuits with tong tester

• Record amps of outgoing circuits with tong tester

• Confirm protection settings have not been altered by other than authorised personal, metering and trip history records of the Air Circuit Breakers

  Yes

  No

  N/A

• Examine general condition of switchboard, for example, operation of door hardware, paintwork, etc., and report signs of undue corrosion

  Yes

  No

  N/A

• Tidy switchboard area and report general operating condition

  Yes

  No

  N/A

• Ensure a reasonable supply of spare fuses and indicator lamps are held in stock. The minimum number of spares shall be:

• Indicator lamps 3 of each type

  Yes

  No

  N/A

• HRC fuse cartridges 3 of each rating and type including

  Yes

  No

  N/A

• fault current limiters

  Yes

  No

  N/A
1.3 MAIN SWITCHBOARD 1 ANNUAL

• PAGE 3 OF 3

  Yes

  No

  N/A

• Ensure all generator inhibit switches are in the off position and report irregular switch positions

  Yes

  No

  N/A

• Inspect all meters and record amps and watts

  Yes

  No

  N/A

• Visual inspection of incoming supply bus duct

  Yes

  No

  N/A

• Record amps of outgoing circuits with tong tester

  Yes

  No

  N/A

• Record amps of outgoing circuits with tong tester

  Yes

  No

  N/A

• Confirm protection settings have not been altered by other than authorised personal, metering and trip history records of the Air Circuit Breakers

  Yes

  No

  N/A

• Examine general condition of switchboard, for example, operation of door hardware, paintwork, etc., and report signs of undue corrosion

  Yes

  No

  N/A

• Tidy switchboard area and report general operating condition

  Yes

  No

  N/A

• Ensure a reasonable supply of spare fuses and indicator lamps are held in stock. The minimum number of spares shall be:

• Indicator lamps 3 of each type

  Yes

  No

  N/A

• HRC fuse cartridges 3 of each rating and type including

  Yes

  No

  N/A

• fault current limiters

  Yes

  No

  N/A

• Check for excessive overheating of terminations and bus-bars joints using infra-red thermal detection and photographic equipment

  Yes

  No

  N/A

• Check bolted joints and terminations for tightness

  Yes

  No

  N/A

• Check for any deposits of dust with particular attention to insulating barriers and clamps where tracking could occur in the main circuit supply zone and incoming functional units of the switchboard. Vacuum switchboard and clean all components accordingly

  Yes

  No

  N/A

• Inspect and check the switchboard and all cable glands and entries, etc., that the integrity of the specified IP 42 rating is intact

  Yes

  No

  N/A

• Check manual operation of change over switches

  Yes

  No

  N/A

• Note: Automatic operation to be checked in conjunction with periodical generator testing

• Check operation of all fused switches and inspect contacts for signs of overheating and fuse cartridges for correct size

  Yes

  No

  N/A

• Provide a thermographic survey report incorporating photographic evidence, observations and recommendations

  Yes

  No

  N/A

• Subject Air Circuit Breakers to Primary Current injection testing and internal inspection

  Yes

  No

  N/A

• Clean switchboard interior

  Yes

  No

  N/A

• Check and clean ventilation fans if present

  Yes

  No

  N/A

• Measure incoming supplies to determine switchboard spare capacity and transformer capacity and record in logbook

  Yes

  No

  N/A

• Check single line schematics are up to date

  Date

• MAIN SWITCHBOARD 2 - ANNUAL

  Yes

  No

  N/A

• Ensure all generator inhibit switches are in the off position and report irregular switch positions

  Yes

  No

  N/A

• Inspect all meters and record amps and watts

  Yes

  No

  N/A

• Visual inspection of incoming supply bus duct

  Yes

  No

  N/A

• Record amps of outgoing circuits with tong tester

  Yes

  No

  N/A

• Record amps of outgoing circuits with tong tester

  Yes

  No

  N/A

• Confirm protection settings have not been altered by other than authorised personal, metering and trip history records of the Air Circuit Breakers

  Yes

  No

  N/A

• Examine general condition of switchboard, for example, operation of door hardware, paintwork, etc., and report signs of undue corrosion

  Yes

  No

  N/A

• Tidy switchboard area and report general operating condition

  Yes

  No

  N/A

• Ensure a reasonable supply of spare fuses and indicator lamps are held in stock. The minimum number of spares shall be:

• Indicator lamps 3 of each type

  Yes

  No

  N/A

• HRC fuse cartridges 3 of each rating and type including

  Yes

  No

  N/A

• fault current limiters

  Yes

  No

  N/A

• Check for excessive overheating of terminations and bus-bars joints using infra-red thermal detection and photographic equipment

  Yes

  No

  N/A

• Check bolted joints and terminations for tightness

  Yes

  No

  N/A

• Check for any deposits of dust with particular attention to insulating barriers and clamps where tracking could occur in the main circuit supply zone and incoming functional units of the switchboard. Vacuum switchboard and clean all components accordingly

  Yes

  No

  N/A

• Inspect and check the switchboard and all cable glands and entries, etc., that the integrity of the specified IP 42 rating is intact

  Yes

  No

  N/A

• Check manual operation of change over switches

  Yes

  No

  N/A

• Note: Automatic operation to be checked in conjunction with periodical generator testing

• Check operation of all fused switches and inspect contacts for signs of overheating and fuse cartridges for correct size

  Yes

  No

  N/A

• Provide a thermographic survey report incorporating photographic evidence, observations and recommendations

  Yes

  No

  N/A

• Subject Air Circuit Breakers to Primary Current injection testing and internal inspection

  Yes

  No

  N/A

• Clean switchboard interior

  Yes

  No

  N/A

• Check and clean ventilation fans if present

  Yes

  No

  N/A

• Measure incoming supplies to determine switchboard spare capacity and transformer capacity and record in logbook

  Yes

  No

  N/A

• Check single line schematics are up to date

  Date

Item