The fast-growing electrical industry employs more than 650,000 workers in a variety of jobs and produces more than $65 billion annually. There are four specialty areas:
Outside Line — install the distribution and transmission lines that move power from the plant to factories, businesses, and homes.
Inside Wiring — install the power, lighting, controls and other electrical equipment in commercial and industrial buildings.
Voice Data Video — install circuits and equipment for telephones, computer networks, video distribution systems, security and access control systems and other low voltage systems.
Residential — specialize in installing all of the electrical systems in single-family and multi-family houses or dwellings.
Commercial and Industrial electricians (Inside Wiremen) install power, lighting, controls and other electrical equipment in buildings. The table below shows the approximate percentage of Linemen performing specific duties.
Voice Data Video Installer Technicians install circuits and equipment for low voltage systems, such as phones and computer networks. Many of the work processes of VDV Installer Technicians are listed below:

The table below shows the approximate percentage of Linemen performing specific duties.
