Connecting the ground wire to a metal electrical box will energize the box in the event of a short circuit. The house was built in 1991.
How To Install A Dimmer Light Switch Wiring And Replacement
No ground wire in light switch box. Thread an 8 32 nut onto the screw. Dont ground to the electrical box. You can add a ground wire to your electrical box in the ceiling for an extra measure of safety when replacing a ceiling light. Wrap the wire around the screw then cinch the nut down to hold it. In many cases especially in older houses with metal boxes the metal box may be grounded even if you dont have a ground wire. Light fixtures and the ground wire.
Dont rely on metal sheathing or an exposed ground wire. Anyway a friend suggested i connect the ground wire on the dimmer to the metal switch box to ground it. Remove one of the long screws that holds the fixture in place. Electrical wiring in some older homes does not have a ground wire for outlets ans switches and some older homes have ground wires that are bonded behind the electrical box. I checked another switch. The box could overheat and start a fire or someone could get a shock from touching it.
Going without a ground wire if the light switch has a screw for a bare ground wire but your electrical box doesnt have one youre ok just leaving that screw empty and connecting your other wires to the hot screws. Disconnect your lighting circuit at the main service panel. Last and least if theres no screw present in the box to connect a ground wire and no place to put a screw heres a workaround. If the box is not metal and a ground wire is not available in the fixture box then you can still install the key less light fixture. If your light switch spark box is made of metal its likely that the bare copper ground wire youre looking for is wrapped around the wiring cables sheath and held in place by the clamp holding. Ground wires and ungrounded fixtures and boxes.
When you have a ground wire and there is no place to attach it then place a wire connector over the end coil up the ground wire and push it back into the electrical junction box. If the box is metal then attach the fixture ground wire to the box. Never cut the ground wire off. Turns out the old switch didnt have a ground wire attached. I thought a ground wire was required by the building code. I went to install a dimmer switch yesterday.
Gallery of No Ground Wire In Light Switch Box
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