Ans. Major hazards or dangers of electricity are electric shock and fire. Here we discuss some faults in electrical circuits that may cause electricity hazards.
INSULATION DAMAGE
All electrical wires are well insulated with some plastic cover for the purpose of safety. But when electrical current exceeds the rated current carrying capacity of the conductor, it can produce excess current that can damage insulation due to overheating of cables. This results into a short circuit which can severely damage electrical devices or persons.
DAMP CONDITIONS
Dry human skin has resistance of 100,000 ohms or more! But under damp conditions, resistance of human skin is reduced drastically to few hundred ohms. Therefore, never operate any electrical appliance with wet hands. Also keep switches, plugs sockets and wires dry.