Test and tag dangers

Electrical equipment can cause electric shock, burns or fire when components deteriorate, connections become loose or equipment is damaged or used in unsuitable conditions . Problems can develop gradually through normal use or appear after damage, moisture exposure, overloading or an equipment fault.

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Electrical equipment can cause electric shock, burns or fire when components deteriorate, connections become loose or equipment is damaged or used in unsuitable conditions . Problems can develop gradually through normal use or appear after damage, moisture exposure, overloading or an equipment fault.

Dangers

How electrical equipment can cause fires

Repeated heating, movement and electrical loading can cause insulation, terminals, internal connections and other components to deteriorate over time. Loose or damaged connections can generate excessive heat and, in some circumstances, lead to fire.

How equipment is used and positioned can also increase the risk. Appliances may overheat when ventilation is restricted or combustible materials are placed too close. Extension leads and power boards can also overheat if they are damaged, overloaded or used incorrectly.

Testing in progress

Common equipment risks

Heaters

Fan heaters can overheat when airflow is restricted or combustible material enters the unit. Radiant heaters can ignite nearby furnishings or floor coverings if they are placed too close or knocked over.

Refrigerators and freezers

Power leads can be damaged when trapped beneath the appliance. Moisture, blocked drainage and faults around heating or defrost components can also create hot spots or short circuits.

Kettles and urns

A failed safety cut-out can allow the appliance to continue heating. Leaks may also allow water to reach electrical components beneath the reservoir.

Power boards and extension leads

Loose connections, overloading and damaged insulation can generate heat. Leads exposed to moisture or mechanical damage can create a fault at the lead, plug or socket.

Lighting

Lamps, ballasts and downlights generate heat that can damage fittings or ignite nearby material when clearances, installation or ventilation are inadequate.

Air conditioners

Continuous operation in dusty environments can allow contamination to build up around electrical components. Heat and tracking faults may then develop inside the unit.

Visible warning signs to check before use

Before equipment is used, staff should look for damage or conditions that may indicate the item is unsafe:

  • Damaged, bent or loose plug pins
  • Frayed cords or exposed conductors
  • Cuts, crushing or flattening along extension leads
  • Loose cord entries or plugs separating from the cable
  • Scorching, discolouration or a burning smell
  • Cracked cases, broken switches or missing covers
  • Intermittent operation when the lead is moved
  • Repeated tripping of an RCD or circuit breaker
  • Overloaded power boards or boards connected together

If damage or unusual operation is identified, the equipment should not continue to be used.

A visual inspection cannot identify every internal fault or confirm that all protective functions are operating correctly. Testing may therefore be required even when equipment appears undamaged.

Arrange testing for any uncertain equipment with ETS

Remove damaged or suspect equipment from service and provide ETS with details of the item and the fault or damage observed. ETS can inspect and test the equipment, record the outcome and advise whether it can be returned to service or requires repair, replacement or further assessment.

Ready to talk scope?

Call the national desk or send a quote request — we’ll confirm testing sequence and reporting.