High and low voltage is one of the most dangerous situations you as a First Aider may encounter. As the first aider you must ensure that you and all bystanders remain at least 6 metres clear of any energised material.

High Voltage Currents

DO NOT – approach the area until you are sure the power supply had been disconnected

BE AWARE – of wires lying on the ground as they can move by themselves

WATCH – for water lying around the area surrounding live wires

Initial Survey


  • Assess the scene and be aware of any danger that MAY be present.
  • Identify the dangers that ARE present to you, to bystanders or to the casualty.

What to Do

  • Turn off the electricity supply at the metre box. (The switch or the appliance may be faulty).
  • Pull the fuse out.
  • If you are wet DO NOT attempt to┬árescue the casualty.
  • Use a broom or wooden stick to move the casualty away from the source of electrocution.
  • Continue the primary survey RSABCD.
  • Commence CPR if the casualty has no signs of life.
  • Treat any burns including entrance or exit wounds.
  • Look for any other injuries and treat as required.
  • Deep tissue burns can occur between the entrance and exit points.