Fluorescent light fixtures are produced for both hard ceiling and drop ceiling installations. Installation techniques are different for each type. These instructions focus on installation of fluorescent light fixtures in regular ceilings, with attachment to the framework by wood screws. The process is likely to take an afternoon.Know More
Turn off the power to the circuit from the main electrical box. Test with a non-contact voltage tester. Don't proceed until you are sure the power is off.
Mark the area where you wish to install the fixture. Using a stud finder, locate the edges of two adjacent rafters. Using the edges of these rafters as guidelines, mark the shape of the cutout appropriate for your fixture. Start the cut by drilling 1-inch holes in each corner of the mark. Use a keyhole saw or portable jigsaw to complete the cut. Attach the housing to the adjacent rafters.
Feed the wiring through the connector on the fixture, leaving approximately 12 inches hanging down. Shave the wiring insulation to reveal 1/2 inch of the circuit wires on both the black and white wires. Connect to the corresponding black and white wires on the fixture, and cap off with plastic wire nuts. Wrap the ground wire around the grounding screw and tighten. Insert the light, and snap the trim and light cover in place.
The iron core in a transformer channels the magnetic flux created by the current flowing around the primary coil to link as much of it as possible to the secondary coil connected to it. Transformers can thus step up or step down the voltage of alternating electric currents. Transformers make possible the transmission of AC electrical current over long distances.Full Answer >
To remove a broken light bulb, turn off the circuit breaker, and break away the glass remains from the bulb base. Use a broken bulb extractor to turn and remove the base from the fixture.Full Answer >
The main cause of a short circuit is when two bare wires touch each other. This causes extra current to flow through the circuit, which can be dangerous. Two bare wires typically come into contact with each other when the insulation around the wires deteriorates.Full Answer >
A three-phase electrical wiring diagram is a clear, visual representation of a common method of power generation and distribution. Three-phase electrical wiring is the most common means of distributing alternating-current power on power grids world-wide.Full Answer >