In the USA, electrical contractors are split into 2 key categories: electricians, who deal with electrical utility business circulation systems at greater voltages, as well as electrician, who work with the lower voltages made use of inside structures. Wiremen are generally trained in one of 5 key specializeds: business, domestic, light commercial, commercial, as well as low-voltage electrical wiring, even more commonly called Voice-Data-Video, or VDV. Other sub-specialties such as control electrical wiring as well as fire-alarm may be done by professionals trained in the tools being installed, or by inside wiremen.

Electrical contractors are trained to one of three levels: Apprentice, Journeyman, and also Master Electrician. In the US and also Canada, apprentices function and also get a reduced compensation while learning their profession. They typically take several hundred hours of classroom direction and also are acquired to adhere to apprenticeship standards for a duration of between three and also 6 years, throughout which time they are paid as a percent of the Journeyman’s pay. Journeymen are electrical experts who have actually finished their Apprenticeship and also who have actually been found by the local, State, or National licensing body to be proficient in the electrical profession. Master Electrical contractors have actually done well in the profession for an amount of time, frequently seven to 10 years, and also have actually passed a test to demonstrate superior understanding of the National Electric Code, or NEC.