About electric power
Electric power is the rate at which electrical energy is transferred by an electric circuit. The SI unit of power is the watt, one joule per second.
Electric power is usually produced by electric generators, but can also be supplied by sources such as electric batteries. It is usually supplied to businesses and homes by the electric power industry through an electric power grid. Electric power is usually sold by the kilowatt hour (3.6 MJ) which is the product of power in kilowatts multiplied by running time in hours. Electric utilities measure power using an electricity meter, which keeps a running total of the electric energy delivered to a customer.
Electrical power provides a low entropy form of energy and can be converted into motion or other forms of energy with high efficiency
Repair of electrical installations in workplaces
Although many people think that minor electrical repairs do not require the employment of a specialist such as a qualified electrician, the majority of jobs decides to offer a permanent job for an electrician. Why is this happening? Well, according to the law serious fault electrical installations may only be carried out by specialists. It is a profession of high risk and therefore must have the expertise to carry it out. In the absence of skills and knowledge of repair system can lead to severe injury or even a real tragedy.
Outdoor electrcian - by Wikipedia
A lineman (American English) or linesman (British English), also occasionally called a lineworker, powerline technician (PLT), or a powerline worker, is a tradesman who constructs and maintains electric power transmission and distribution facilities. The term is also used for those who install and maintain telephone, telegraph, cable TV and more recent fiber optic lines.
The term refers to those who work in generally outdoor installation and maintenance jobs. Those who install and maintain electrical wiring inside buildings are electricians.