Does the bare wire (ground wire?) wrap around the screw?

Question

I have a timer system which requires me to attach wires (black, white, red) to areas on it. There is another wire with no plastic coating (bare wire). I belive this wire is the ground wire? Must i wrap this wire around a screw of the chasis that holds up the timer system against the wall? If i do then wouldnt it be in contact with the metal chasis casing and be dangerous if i touched it with my hand?

Thanks

Answer 1

Yes hook it. No this will not cause you to get shocked because it is the bond to earth at the other end. This is why a GFI in used to sense if the power goes to ground and disconnects in milliseconds. It would travel down that wire before you would be harmed. Keep in mind electricity takes the path of least resistance and copper is a very good conductor

Answer 2

The bare wire IS the ground. The chassis shouldn't have any electricity running through it. If it does there's a problem. It can be attached to either the casin or the box the casing is attached to. The orher end should attach to the metal or ground screw on the motor or whatever you are trying to use the timer for.

Answer 3

The bare wire should wrape around the screw. The screw should be green or blue in colour. This does not cause a dangerous coneticion but provides the electricity a path of least resistance to the ground and causes the breaker to trip in case of a short.

Answer 4

The bare wire carries no current and is actually there to help dissipate any extra charge that is there. Hence, it hooks to the metal to carry that load back to ground. So hook the wire to a screw

Answer 5

Yes it gos around the green screw in the mounting.

Answer 6

there should be a grounding screw or lug it goes there.