Safety measures in using electricity.

1. Electric fuse : An electric fuse is a safety device used to save the electrical appliances 2. Wires carrying electricity should not be touched case footed. If we touch the wire bare footed, a large current may pass through our body. So we may receive severe shock. This shock may sometimes cause death. Therefore, while working with electricity we our year gloves made of insulated material and rubber soled shoes so that current may not flow through our body. 3. The insulation of the wire must be checked periodically. 4. Earthing : Many electrical appliances have a metallic body such as electric heater, toaster, oven, refrigerators etc. If by chance insulation of the wire melts, the live wire may touch the metallic body of the appliance. He we touch this body with case hands, we may receive a severe shock. To avoid such accidents, metal carings of all electrical appliances must be earthed. One end of a copper wire is connected to the metal case of the appliance and the other end is connected to the copper plate which is buried deep inside the earth. This system of connecting the metal casing of an electrical appliance with a copper plate buried deep inside the earth is called as earthing.