A preventive maintenance checklist

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Preventative Maintenance Checklist for Electrical Distribution Systems:

  • Check function of all power meters before shutdown.
  • Check function of lamps and indicators.
  • Clean thoroughly, vacuum and full visual inspection of exterior and interior of all LV switchboards.
  • Inspect control wiring, relays, power supply units, timers, etc. where applicable.
  • Verify control circuit fuse rating and continuity.
  • Check and torque test bolted electrical connections as necessary to specified levels.
  • Check control wiring and operate of ATS controller
  • ACB maintenance withdrawable or fixed, check trip unit, etc.
  • Visual inspection cap bank for signs of overheating or deterioration.
  • Final visual inspection to insure all clear after work completed.
  • Check battery tripping packs, battery integrity, signs of defects, etc.