Testing & Inspection Intervals for Electrical Equipment

Electrical Equipment Inspection & Testing Intervals

Type of environment Frequency of testing Examples of equipment to be tested
Areas of extreme usage ie Factories, workshops, places of manufacture, assembly, maintenance or fabrication, building sites (equipment used offsite) 3 months Power tools, extension leads, battery chargers, microwaves, RCD’s
Areas of higher usage ie Factories, workshops, places of manufacture, assembly, maintenance or fabrication (equipment used on site only) 6 months Cook equipment, leads, tool, RCD’s
Areas of high usage ie. Schools, halls, common areas 12 months Power supplies, extension leads, power boards, Computer equipment, IEC leads, RCD’s
Areas of medium usage ie. Boarding houses, accommodation 2 years Battery chargers, kettles, microwaves, hair driers, RCD’s
Areas of low usage ie. Private offices 5 years Computer equipment, printers, power supplies, IEC leads

As per AS/NZS 3760, electrical equipment shall be inspected and tested;

  • At intervals outlined above which are subject to a tolerance of two weeks
  • On return to service after a repair or servicing
  • Before placement in service if sourced second-hand

Typical workplaces and equipment testing frequencies.

Bakery – 6 monthly

Panel shop РWorkshop Tools Р6 monthly, Office Р5 yearly

Warehouse РStorage Area Р12 monthly, Office Р5 yearly

School – 12 monthly

Trades on site – 3 monthly

Light Manufacturing – 12 monthly

Hire Equipment – 3 monthly