They use trenchers, plows, and other power equipment to dig the holes. Line installers also work on cable television lines. These lines are installed in the same manner as power or telephone lines. The difference is that installers also place wiring in the house. They also connect the customers' television sets to the cable and make sure the connection is working.
Telephone lines require extra work once they are installed.
Cable splicers, or cable splicing technicians, complete the line connections. They connect individual wires or fibers within the cable and rearrange the wires when lines are changed. In order to splice the proper wires, cable splicers read and interpret service orders and circuit diagrams. They use hand tools, glue, or mechanical equipment while splicing. At each splice, they place insulation over the conductor and seal the splice with moisture proof covering.