A safety wire included in a household electrical circuit to carry current directly to ground in case of a short. The grounding wire in household electrical cable is usually bare copper, but it may also be found covered with green plastic insulation.
First, plan the path for the new wiring and remove the baseboards where necessary. Use a sharp drywall knife to cut the caulk and paint sealing the top of the baseboard to the wall.
A ceiling fixture may be installed one of two ways, it may have screws that hold the base to the mounting strap on the outlet box to support the weight, or a threaded rod and coupler may be used to suspend the fixture. To install a fixture with screws, locate the base and make sure there are two holes that line up with the screw holes in the mounting strap. Also check that the screws to be used thread freely into the holes before holding the light up to begin installation.
After deciding the route, mark and cut the holes for a new receptacle, switch or fixture using the outlet box as a template. Before installing the new box, use the hole to aid in running the new cable.