There are many guidelines addressed in the NFPA 70 that make working with electrical hazards safer for employees. Here are some of the main areas of protection addressed: grounding of wires, fire alarm equipment, physical protection, abandoned supply circuits, communications equipment, temperature ratings, special requirements for information technology equipment room, among many other important guidelines.
Electric current is electric charge in motion, such as the flow of electrons through a wire. Electric current is electric charge in motion, such as the flow of electrons through a wire.
Household Electricity. Cells and batteries provide an electrical current which always flows around the circuit in the same direct, this is called direct current (dc). In the UK mains electricity is supplied at about 230 volts and is supplied as (ac) or alternating current.