In the USA, electricians are divided into two primary categories: electricians, who work on electrical utility business distribution systems at higher voltages, as well as electrician, who deal with the reduced voltages made use of inside structures. Wiremen are generally trained in among five primary specialties: commercial, household, light industrial, industrial, as well as low-voltage electrical wiring, more typically known as Voice-Data-Video, or VDV. Various other sub-specialties such as control electrical wiring as well as fire-alarm might be performed by experts trained in the devices being set up, or by within wiremen.

Electrical contractors are trained to one of 3 levels: Pupil, Journeyman, and Master Electrical expert. In the United States and Canada, pupils work and obtain a decreased payment while learning their trade. They usually take several hundred hrs of class instruction and are contracted to adhere to apprenticeship requirements for a duration of in between 3 and six years, during which time they are paid as a portion of the Journeyman’s pay. Journeymen are electrical contractors who have finished their Apprenticeship and who have been located by the regional, State, or National licensing body to be competent in the electric trade. Master Electrical contractors have executed well in the trade for a time period, often seven to 10 years, and have passed a test to show premium expertise of the National Electric Code, or NEC.