Fundamentally, electrical current rather than voltage is the criterion of shock intensity. The passage of even a very small current through a vital part of the body can cause death. The voltage necessary to produce the fatal current is dependent upon the resistance of the body, contact conditions, and the path through the body. Pulse weak or absent. Burns and unconsciousness.
Breathing is shallow or absent.
Body may become rigid or stiff due to the muscular reaction to the shock, don't consider this to be rigor mortis. The appearance of rigor mortis shall not be assepted as a positive sign of death . Shut off the power . If you cannot shut off the power, remove the victim immediately. Do not attempt to administer first aid or come in physical contact with an electrical shock casualty before shutting off the power.