In a circuit, the main load wire — the live power wire between the switch and power source — is typically black, and the secondary load wire is usually red. Wire colors can vary between circuits, so it is best to remove ... More »

A 60-amp load requires a nine-gauge wire or less for chassis wiring and a four-gauge wire or less for power transmission. Safety margins generally dictate using a lesser gauge wire to avoid overloading. These two gauges,... More »

The white wire is the common or neutral wire in a 100-volt service, but the wire can also be gray in color. A white or gray wire can only be connected to another white or gray wire. Knowing the color code is essential fo... More »

To change a circuit breaker, switch off the main circuit breaker, and unscrew the load terminal wire. Remove the old breaker, and reverse the sequence used to remove it to install the new one. Use a voltage tester, a scr... More » Home & Garden Home Maintenance Electrical

To install a circuit breaker panel, turn off the power, locate the mounting spot, fix the panel in place, run the cable, and switch on the power. You need a screwdriver, wood screws, a stud finder and a circular saw to c... More » Home & Garden Home Maintenance Electrical

To set up a Leviton switch, first turn off the circuit breaker supplying power to the original light switch. Dismantle the light switch cover, remove the switch and test to ensure the terminals are not receiving any powe... More » Home & Garden Home Maintenance Electrical

A drawing of a three-way circuit should include the power source, a two-wire cable with a ground wire connecting to the power source on one end and the light fixture on the other, three-way switches, a three-wire cable w... More » Home & Garden Home Maintenance Electrical