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Mar
Idealy you should have a green ground wire all the way back to the service ground point. If the light box is not metal then the ground wire should be bonded to one of the fixture mounting screws.
Engineers wont add that ground wire unless it is necessary.
No place to connect ground wire. 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. Remove one of the long screws that holds the fixture in place. Thread an 8-32 nut onto the screw.
Wrap the wire around the screw then cinch the nut down to hold it. A plastic box with no ground. 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.
Never cut the ground wire. Since the box is grounded through the conduit which is as good a ground conductor as any you dont even have to terminate the ground wire to the box as long as the Z-wave switch has a metal yoke that contacts the box although you can get a grounding screw any 10-32 machine screw will do in a pinch screw it into the back of the box there is a hole there tapped for a 10-32 screw just for that job and terminate the Z-wave switchs ground wire. I show how to install a ceiling light into a metal electrical box that is connected to metal conduit.
This electrical box doesnt have a ground wire because. Disconnect the neutral wire – which is white – and connect it to the chrome LINE terminal. Leave the ground terminal disconnected.
Replace the outlet and put a label on it that reads No Equipment Ground. However you can not install a device with a ground wire or other provision to be connected to the system ground in a place where there is no ground wire available without making a provision for safety afforded by grounding the device. If the fixture is provided with a place to attach a ground wire then it must be used as intended.
Not having that may kill people. If your electric appliance has ground wire it is because there is at least a remote possibility of you get an electric shock in case of electric appliance fail. Engineers wont add that ground wire unless it is necessary.
Connect a 2-wire light fixture without ground Safety first. Always turn off the power at the breaker or fuse box before you work on electricity. The purpose of the ground wire.
The ground wire is designed to protect you. Examine the metal box. A plastic box with no ground.
Never connect the fixtures ground wire to the white wire. Idealy you should have a green ground wire all the way back to the service ground point. The metal conduit to the timer may or may not provide a ground connection.
This can easily be checked with a voltohm meter. Simply probe from one hot leg to the case. If you get 120 volt reading then the ground is complete.
You can obtain a ground wire from a local shop and attach it with the electrical box with wire wrapped around the ground screw. Locate the copper wires. The copper wire from the fixture and copper wire from the supply can be joined together with the ground screw.
If there is no ground in the feeder cable but there is a ground wire or screw attached to the fixture. Attach the ground wire of the fixture to the box using a green screw or ground clip. In this situation the outlet may be feed with Type AC or MC cable.
2 Mar 6 2012. I assume you are referring to the green or bare ground wire from the cable. You should attach that to the box if it is a metal box there should be a place for a grounding screw.
If you have a plastic box I think you said you did they are typically not grounded but you could attach the wire to a grounding. Ceiling Fan and Light wall switch. Look with a flashlight into the back of the plastic box.
That is were you may find the bare cooper ground lead for the replacement wall switch 4th wire. If the original fan light switch did not use the ground 3 wire then the electrician would just shove the ground wire. If there is no ground wire included in an electrical circuit then there is no ground wire that youd be connecting - at least not in the circuit wiring.
If youre asking where do you connect the ground screw for a grounded electrical receptacle on a 2 wire circuit you dont. If you dont have a wire coming in to hook your ground to what you do is you take your ground wire which is either a solid copper or a green wire youll take that ground wire and you wrap it. Ground wires help to protect you from electrical shock but when it comes to electricity you will need to have experience and know-how if you want to be able to successfully and safely connect it.
There are several different things that you can connect to ground wire and several different ways that you can go about doing it. If the light box is not metal then the ground wire should be bonded to one of the fixture mounting screws. If the wiring to the new light does not have a ground wire then one should be provided from the power source using an approved cable.
I hope this helps I believe I covered all scenarios of your installation and concern. No matter the method its important that the ground circuit provides an unbroken path to the earth. Ground wires must be firmly connected at all points.
And if conduit or sheathing is used as a ground path connections must be tight. If youre not sure if your outlets are grounded a receptacle analyzer will tell you. Using a brass clamp commonly referred to as an acorn connect the wire to the first ground rod pulling the wire taut so no slack exists.
Continue pulling the wire to reach the second grounding rod creating a continuous connection. Location of the Grounding Connection Each premises wiring system supplied by a grounded ac service shall have a grounding electrode conductor connected to the grounded service conductor at each service according to 25024A of the Code. Basically this is saying each building that is served.