Grounding electrode system sec. In many cases especially in older houses with metal boxes the metal box may be grounded even if you dont have a ground wire.
/cdn.vox-cdn.com/uploads/chorus_asset/file/19585969/wiring_problems_xl_banner.jpg)
Electrical Problems 10 Of The Most Common Issues Solved
Replacing ungrounded light switch. However if youre installing a switch. Older switches may not have a grounding terminal and there may be no ground wire present in the switch box. If the box isnt grounded the. So if the metal box is grounded the switch is also grounded. When doing so i noticed that none of the switches in that box were grounded nothing attached to green ground screw on the switches. 319 2 2 gold badges 4 4 silver badges 10 10 bronze badges.
An old switch can be replaced with the same type or you can change a single pole switch to a rheostat dimmer if it controls an approved light fixture. Perhaps your light switch has gone bad or you just want a new look or type of switch. Replacement or otherwise into a metal box that is grounded. 123k 65 65 gold badges 273 273 silver badges 552 552 bronze badges. Asked jul 10 13 at 123. If you are replacing a switch a ground is not required as per the above exception.
My wife is considering refurbishing the look of the light instead of replacing it. 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. After youve turned the power off all. If its a metal box and a metal light fixture and the box is. A light switch recently cracked so i replaced it. An exception is allowed if you are replacing an exisitng switch in an older two wire pre 1960 electrical system that does not have a means of grounding at the box.
Fortunately replacing a light switch is a simple project. The switch will be ground via the devices yoke and mounting screws. 250 130 c allows you to replace an ungrounded type receptacle with a grounding type receptacle at an outlet box not containing an equipment grounding conductorif you bond the grounding contacts of the receptacle to any one of the following locations. Is it okay to use the light even though its not grounded. However an ungrounded switch must have a non metallic faceplate that is also nonconducting and noncombustibleunless the switch mounting strap is nonmetallic or the circuit is protected by a ground fault circuit interrupter gfci. Only two wires on each switch black and white i started checking other switches and found that none of the light switches in the house are grounded.
Share improve this question follow edited jul 10 13 at 1423. They go down to their local home improvement center and purchase a replacement light switch only to find out that there is a screw on their new light switch that wasnt on their old one. When there is no gfci protection provided sec. When you screw the light switch in it will make contact with the box and as long as the box is grounded it will pick up ground that way.
Gallery of Replacing Ungrounded Light Switch
:max_bytes(150000):strip_icc()/Looseelectricalwires-GettyImages-73667152-5a375b8abeba330037bf30c5.jpg)
