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Look in the very back of the switch box. There you should see a screw with a bare copper wire wrapped around it. That is your ground wire. Loosen the screw and add a piece of wire under it and then re tighten it. Extend it out to where you can connect it to the switch. The extended piece of wire should be bare or green so as not to get it confused with the other "hot" and neutral wires. Re install your new switch. Just as a note of interest, when you screw the switch to the box this also grounds the switch frame if the box is grounded. The code states that if there is a ground screw on the switch this must be the method that is used. What this allows is that when the switch is removed from the box the ground will still be intact to the switch for safety reasons.

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Q: What color is the ground wire when you have red black and white and I changed a switch that has a night light on it and it says it has to be grounded but these are the only wires i have?
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How do you wire a light and switch with the 2 wire old romex?

with a standard 1 pole light switch (one switch operating the light) it is black wire to black wire and white to white (non grounded)


What colour wires are live and ground in 96 mondeo?

Normally Red, Black, or Orange are hot and Green, or Possibly Brown are ground. To be sure, use a voltmeter, set for 12 volts D.C. and check each wire for current. Once you have isolated the wires carrying voltage. then switch to OHMS and check the other wires. Wires that are grounded will show a reading in OHMS.


Should the black wire be bonded to the ground?

It depends on the color coding standards for what country you are in. In the US, the answer is no. The Neutral (white wire) is grounded at the service entrance to the building. The black wire should have roughly the same voltage to the neutral and to the ground. Something to be aware of: If you are using a meter and checking for continuity between the black wire and ground, it may tell you that they have continuity if the breaker is on.


Does a three way electrical light switch need a ground?

Answer for USA, Canada and countries running a 60 Hertz supply service.No, a three way electrical light switch, and for that matter any light switch, does not need a ground connected to it, in fact there is no ground screw on the switch to connect to. The box that the switch is installed in, under code, needs to be grounded by the ground wire that is in the incoming feeder cable. The ground to the switch frame is picked up from the grounded box when the switch is screwed into the light switch junction box.If you use the ground for a traveler your light will not be in code.Yes, it needs a ground. You will need to use 3-wire cable. The "3" wires isn't counting the ground wire. 3-wire cable actually has four wires: Black, white, red, and ground (bare). The black and red wires are used as "travellers", and the white wire is "neutral". Never use the bare wire as a traveller, or even as the neutral wire. Though this will technically work, there are two problems: 1) you will no longer have sufficient grounding on this circuit, and someone could get a serious shock, and 2) you will have an uninsulated wire carrying current, which is a fire hazard.Of course, if you are replacing a regular on-off switch with a 3-way, in an existing-construction situation, it is going to be very difficult to replace the wiring. But if that's the case, this is just the beginning of your trouble. See, you still have to mount the OTHER 3-way switch somewhere, and run wire to it. So even if you didn't have to replace the 2-wire cable, you still have more wire to run in already-existing walls.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energizedIF YOU ARE NOT REALLY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.


Light switch has 4 wire colors red and white and green and black which is the hot wire?

You have a 3 way switch. Your black wire is the hot wire. Your green wire is the ground wire. Your red and white wires go to the light and other switch. You should have gotten a wiring diagram with your switch.

Related questions

How do you wire a light and switch with the 2 wire old romex?

with a standard 1 pole light switch (one switch operating the light) it is black wire to black wire and white to white (non grounded)


You have got no reverse lights ive changed the bulb what next?

look at the ground wire it should be black Also check the fuse Have your neutral safety switch checked. If you don't have any bad fuses and you've changed the bulbs, most likely it's your neutral safety switch. It's located on your transmission.


How do you wire a garbage disposal between the disposal and the GFI?

White and the ground go to the disposal, black goes through a switch and then to the disposal. All three go through the switch box, the white and ground just pass through on the way to the disposal. Break the black with the switch.


Does positive go to ground in a car battery?

NO! positive is red and black is negative negative is grounded to the frame of the car, and positive goes to the electrical components.


Is the black wire connected to the line or the grounded line when connecting a power cord to a motor?

Black is the hot side of the line, white the neutral side, green (or rarely bare) wire is the ground.


What colour wires are live and ground in 96 mondeo?

Normally Red, Black, or Orange are hot and Green, or Possibly Brown are ground. To be sure, use a voltmeter, set for 12 volts D.C. and check each wire for current. Once you have isolated the wires carrying voltage. then switch to OHMS and check the other wires. Wires that are grounded will show a reading in OHMS.


How do you install a 20 amp switch for well pump?

Black/White/Ground power in and the same out. Tie the incoming and outgoing white wires together under a yellow wire nut and push them back in the box. Tie the ground wires together under a green wire nut and connect the pigtail from those ground wires to the ground screw on the switch. Connect the 2 black wires you have left to the 2 screws on the switch. Doesn't matter which black wire you connect to which screw.


Should the black wire be bonded to the ground?

It depends on the color coding standards for what country you are in. In the US, the answer is no. The Neutral (white wire) is grounded at the service entrance to the building. The black wire should have roughly the same voltage to the neutral and to the ground. Something to be aware of: If you are using a meter and checking for continuity between the black wire and ground, it may tell you that they have continuity if the breaker is on.


What if I find a black wire grounded in the light terminal?

Black wire? You mean black insulation? If so, a black insulated wire would generally be a non-grounded conductor (preferably the hot line) and should not be connected to ground anywhere. However, someone may have improperly used a black wire for grounding, rather than green wire (or green/yel wire), or forgotten to wrap it with green tape.


How do you know if a car has a negative or positive grounded battery?

Find the cable that is connected directly to the frame or sub-frame of the car. If it is red, then Positive is ground; If it is black, then Negative is ground. More than likely (but not in all cases) the electrical system is Negative ground.


What is common wire in a three way when all the wires are black?

If this is a new installation then you have a choice of picking any one you wand to make the common wire. Usually a three wire cable used for three way switching has a white, red and black wire in them. If this is an existing installation and you have misplaced which wire is the common you will have to go back to the switch to find the conductor used. Disconnect it from the switch and temporarily place it on the ground wire. Next go to the next junction box and start ringing the wires to ground. When you find which wire is grounded, this is the common conductor.


Does a three way electrical light switch need a ground?

Answer for USA, Canada and countries running a 60 Hertz supply service.No, a three way electrical light switch, and for that matter any light switch, does not need a ground connected to it, in fact there is no ground screw on the switch to connect to. The box that the switch is installed in, under code, needs to be grounded by the ground wire that is in the incoming feeder cable. The ground to the switch frame is picked up from the grounded box when the switch is screwed into the light switch junction box.If you use the ground for a traveler your light will not be in code.Yes, it needs a ground. You will need to use 3-wire cable. The "3" wires isn't counting the ground wire. 3-wire cable actually has four wires: Black, white, red, and ground (bare). The black and red wires are used as "travellers", and the white wire is "neutral". Never use the bare wire as a traveller, or even as the neutral wire. Though this will technically work, there are two problems: 1) you will no longer have sufficient grounding on this circuit, and someone could get a serious shock, and 2) you will have an uninsulated wire carrying current, which is a fire hazard.Of course, if you are replacing a regular on-off switch with a 3-way, in an existing-construction situation, it is going to be very difficult to replace the wiring. But if that's the case, this is just the beginning of your trouble. See, you still have to mount the OTHER 3-way switch somewhere, and run wire to it. So even if you didn't have to replace the 2-wire cable, you still have more wire to run in already-existing walls.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energizedIF YOU ARE NOT REALLY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.