Electricians are involved in the generation, transmission, distribution and usage of electricity. They install, repair and maintain electrically operated equipment such as generators, geysers, refrigerators and stoves.
They detect electrical faults and repair them. Repairs may involve replacing fuses, switches, or wires. Once the repair is complete the electrician tests the equipment to ensure that it is working properly. By law, only qualified electricians are allowed to connect cables to electric motors and switchgear and to handle the electrical wiring of all electrically equipped buildings. During the building, for example, of a new factory, an electrician must ensure that the electrical cables are installed.
In the distribution of electricity, electricians supervise the erection of pylons, the connection of high-tension cabling on pylons and ensure the thorough insulation of the pylons. Suitable transformers and switchboards, which reduce the current, must be installed at sub-stations.
Electricians working at power stations install and maintain power generators, including the servicing of electrical meters and transformers. Some perform regular inspections on motors, switchgear and transformers to ensure safe functioning.