Locate the green ground screw that will either be on the light fixture itself or on the mounting bracket used to hang the light fixture. Sometimes the light fixture will have a green wire coming from it. This green wire is the ground wire and if it is present there will be no ground screw.
Does ground wire need to be connected to green screw?
It is not required to ground the mounting plate. That green screw is only there for convenience of grounding a metal fixture with no separate ground wire. With the two wires you described connected together you are good.
What screw does the ground wire go to?
The black (hot) wire goes to the brass screw or into the hole in the back of the device on the same side as the brass screw. This wire is sometimes red. The green or bare copper (ground) wire, if the device has one, attaches to the green screw terminal on the switch or to the electrical box.
Is it OK not to connect ground wire?
As long as one of the two are grounded, there shouldn’t be a problem. Code bodies and safety experts say to bond both the fixture and the box, because there’s no way for them to be sure that a fixture will properly bond during installation.
Can I use any screw for ground wire?
What screws should be used to connect grounding and bonding conductors? … Machine screws with at least two threads or secured with a nut are acceptable, and any self-tapping screw, where at least two threads are formed, are acceptable.
Does the ground wire have to be attached?
Grounding refers to the wire that runs from an outlet into the earth, inherently protecting homeowners from coming in contact with electric energy. No matter the method, it’s important that the ground circuit provides an unbroken path to the earth. Ground wires must be firmly connected at all points.
Can I touch a ground wire?
A ground wire can touch itself without any risk. That’s because one wire doesn’t make a circuit, it takes two wires or more, or a physically-grounded component in conjunction with a wire to do that. In both AC and DC circuits, it works the same way. Nothing will happen if it’s the same wire.
Do ground wires need a wire nut?
There’s not a specific type of wire nut for ground wires. Wire nut are sized by the type, gauge and number of wire’s you’re connecting. So the common yellow wire nuts can be used for as few as two #16 wires, or as many as three #12 or four #14, with several other possible combinations.
What does a grounding screw do?
Grounding accessories provide a safe electrical path to ground and help prevent shock. Grounding screws are threaded into the box and provide a means of fastening the ground conductor. Ground wires fasten to the box and then connect to the wiring system.
What size is a grounding screw?
Many grounding screws and the screw holes provided for grounding screws have 10-32 threads (No. 10 screw size with 32 threads per in.) and will cut or engage three or four threads in a typical 1/8-in. sheet-metal box.
Where do you put ground wire without ground screw?
If there are no ground screw hole available in the box; attach the ground wire to the box using a green ground clip (captures the wire and slips over the edge of the box, holding the ground wire in good contact with the box). Ground screws and clips will be available at big box or good hardware stores.
What happens if I don’t connect ground wire?
The appliance will operate normally without the ground wire because it is not a part of the conducting path which supplies electricity to the appliance. … In the absence of the ground wire, shock hazard conditions will often not cause the breaker to trip unless the circuit has a ground fault interrupter in it.