While the Outside Lineman works on the distribution network, bringing power from sources of generation to the customers, the Inside Wireman's job is to distribute and connect the customer's electrical equipment to that power source. The Inside Wireman installs and maintains all of the various types of electrical systems found in commercial and industrial facilities. Equipment used may include lighting, receptacles, motors, heating equipment, and systems that control the operation of all of a facility's energy usage.
The Inside Wireman installs conduit systems that contain the wire from the motor control centers or panelboards to all of the equipment that uses electricity. Those conduits may contain power cables or control cables. Many of the conduit systems are exposed and must be installed to exacting standards using neat and workmanlike craftsmanship.