Some tools don't have ground wires because the tool exterior is plastic or some other material that will not conduct electricity. The ground is not required unless the case is metal and can become electrified if the "hot" wire touches it.
Sometimes the tool's plug is "polarized" by having one contact larger than the other so it can only be inserted into an outlet in one direction, insuring that the same wire is always the ground or neutral and the other is always the "hot" wire. That insures that the tool's ground is always connected to the outlet ground.
Other times the plug has a third prong that is the ground or neutral prong and can only be inserted one way in the outlet to insure the ground of the tool is always connected to the ground of the outlet.
Ideally ground and neutral should be at the same potential, but as there is current in the neutral wire and no current (normally) in the ground wire there can be a difference. I have personally measured over 25 VAC on the neutral relative to ground in some systems.
It simply means that the ground wire is not grounded. There are two HOT wires and the unshielded copper ground wire which should be connected some how to the earth (ie. grounded)
Ground wire to neutral wire.
the green wire its ground so you have black withe an ground
Connect the ground wire to the exhaust fan housing.
My gas guage is moving irraticly I think it's a ground wire. which wire is the ground? I dont have a multi meter
Some older wire does not have a ground. All you can do in that case is use a jumper wire to connect the ground to the neutral.
two problems i had .....on the back of the head unit ...the brown wire is the park break wire ground that wire and thats it ...also the orange wire is not the ilumination wire its for camera i diddnt see that ,,,,dont hook up that wire if you dont have cam .
glass, wire, and some tools
A ground to earth completes an electrical circuit in some cases. The wire is called the ground or grounding wire, and often has green insulation.
If you don't have the wire then you just can't ground it. This should not be too much of a problem. Most light fixtures are not grounded and some don't even have ground wires.
It means a wire in the ground.
Likely a ground that goes to chassis.
That Thermostat is LOW voltage. IT does not have a ground wire. There is no need for a ground. it only opperates on 24 volts. there may be a green wire but it does not mean it is a ground
If there is no ground wire connect the ground wire to the neutral wire.
Check the continuity of the ground wire from both the ends. Ensure the ground wire is properly connected to earth / ground terminals
If you are connecting 120 volts, you connect the black wire to the breaker, white wire to the neutral bar, and ground wire to the ground bar. If you are connecting 240 volts connect the black & white wires to the breaker, & ground wire to the ground bar.