Electrical contractors are generally classified by three major types of work performed. "Outside" or "line" contractors are responsible for high-voltage power transmission and distribution lines.Line contractors build and maintain the infrastructure required to transport electricity generated at a power plant through a series of high-voltage lines and substations before it is used to power facilities, buildings, and homes. "Inside" electrical contractors provide electricity to any structure within a property?s boundary lines, including outdoor lighting or substations.
Projects also include Database Centers/Infrastructure and Pharmaceutical Work. "Integrated building systems" (IBS) or "Voice/Data/Video" (VDV) electrical contractors work primarily with low-voltage installations such as back-up power, climate controls, wireless networks, energy-efficient lighting, telecommunications, fiber optics, and security systems.
In such places, electrical work, after-hour, including the usually public holidays and so on.
Often continuity of production makes the conduct of such processes is profitable.Production plants are often places where electricity specialist can find a well-paid job.
This involves a number of responsibilities for the most number of installations.
Building wiring is the electrical wiring and associated devices such as switches, meters and light fittings used in buildings or other structures.
Wiring safety codes vary by country, and the International Electrotechnical Commission (IEC) is attempting to standardise wiring amongst member countries.