UCL Department of Electronic and Electrical Engineering
Staff/Student Intranet

Electrical shock

Where a serious electrical shock is suspected, act to break the contact between the casualty and the electrical supply.

  • If it is possible to do so safely, you should turn off the source of electricity, by switching off the current at the mains, turning the power off at the circuit board etc.
  • Alternatively, move the source of the shock away using an object of low conductivity. Stand on a dry insulating material, such as a book, newspapers or rubber matting and use a long, low-conductivity object to push the power source away from the casualty, or to free the casualty's limbs from contact with the source.
Immediately request assistance from Security (222) to call for the emergency services and the support of a first aider.