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.
Electric current is a flow of electric charge (usually in the form of electrons) through a substance. The substance or conductor that an electric current flows through is often metal wire, although current can also flow through some gases, liquids, and other materials.Circuits can be wired in two ways.In a series circuit, current flows to each bulb in turn. Both bulbs are dimly lit.he substance or conductor that an electric current flows through is often metal wire, although current can also flow through some gases, liquids, and other materials. Circuits can be wired in two ways. In a series circuit, current flows to each bulb in turn. Both bulbs are dimly lit.