I have none in mine either and I assume you are saying your house is older and is missing the ground wire required for newer homes and the electrical three prong grounded outlet? So! I was working on a way to install a new ground wire up towards the outlets in my home. The large problem is to get it thru the floor and then into the box to the receptacle is this your problem?
Wall receptacles are wired in parallel. black to black, white to white, ground to ground.
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.
If your talking about the main ground wire from the battery, its located on the metal wall right to the left of the negative terminal. Just follow the wire that comes off the negative terminal back six inches to a foot and you can see where the ground wire splits off and bolts to the metal.
Not correctly , It will show on a tester that it is grounded but you should run a separate ground for it to be properly grounded
The screw is actually only silver in color and it is where the neutral wire(s) get connected to, (white wire). the gold colored screw gets connected to the positive(black or red) wire(s). Green screw is for ground wire.
Very often the ground wire in the fixture is ignored, or just connected to the box, if there isn't a conductor to connect to. This, however, is a code violation as any fixture with a ground wire is required to have it properly connected to an equipment grounding conductor back to the panel. This is for YOUR SAFETY. Technically you should rewire the circuit with the proper conductors. It is BAD PRACTICE to connect the ground wire to the neutral or white wire because this could create a hazard of its own.
Romex is a manufactures brand name of NMD90 house wire. It comes in different sizes , the most common being 2C-14 3C14 2C-12 and 3C-12. For branch circuit house wiring to wall receptacles 2C14 is used. This cable comes with a black and white #14 wire and a bare ground #14. The bare ground is used to ground the receptacle to the ground bus back at the distribution panel.
It means a wire in the ground.
To wire a wall switch correctly, first turn off the power to the circuit. Remove the old switch and disconnect the wires. Connect the new switch by attaching the hot wire to the brass screw, the neutral wire to the silver screw, and the ground wire to the green screw. Secure the switch in place and turn the power back on to test it.
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