0
Use an ohm meter to measure the resistance between what you are calling the earth wire and the earth. The earth is either a grounding rod driven into the earth or, if there is a suitable copper water pipe or cast iron drain pipe going into the ground, you can use that as the earth side of the measurement.
By the National Electric Code the Neutral (White) and Ground (Bare or Green) should be bonded together only at the main electric breaker panel. This is where you should find the ground rod. You should read zero ohms from the wire to ground.
<><><>
As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.
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-energized.
IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
How do I test for a ground wire?
Check the continuity of the ground wire from both the ends. Ensure the ground wire is properly connected to earth / ground terminals
Is it dangerous for a earth wire to be hanging in the kitchen?
No. An earth wire (commonly called a ground wire) has no current flowing through it. It is simply a wire connected to the ground to discharge electrical current in a circuit.
How do you know if your ground wire is connected?
Measure the ground resistance from the user end point, where earth or ground cable is connected. It will show a very high resistance or open if ground is broken.
Why are neutral and earth wires connected together at the panel?
The quick and dirty answer is that the live wire (or hot/black wire) in a North American supply has a potential of 120V above ground - The voltage you pump out of the hot wire will do what it is meant to do (such as heating a kettle element) and then find the shortest path back to ground which in this case should be the neutral wire since it is directly bonded at a very low resistance path to the ground (your panel earth will probably be connected to your cold water pipe inlet, or to a metal pipe hammered into the ground).A more complicated question is why do you need a separate ground/earth wire when both of them are connected to the same thing. I will leave that one for someone else :)For information about that see the answer to the Related Question shown below!
Why do we need dedicated earth wire for socket outlet?
Yes, all receptacles require an earth ground. (the bare copper wire in house wiring). However, it is not a dedicated ground in that all ground wires in a houses electrical system are connected or in common.
What is earthgrounding wire?
Earth wire (or earth grounding wire) is a safety system which helps prevent electric shocks. It is connected to the electrical cable of an appliance.The earth wire connects the metal frame of the electrical appliances to the ground. The convention is to have green colour for earth wires. The purpose of earthing is that in case of an insulation failure in some appliance, this wire connected to the metal body will provide a path for the current to flow on the ground. In absence of earth wire, this fault current would have flown through the body of the operator, causing electrical shock.
When you connect earth wire in ceiling light does not work when connecting earth from light direct to earth wire coming from ceiling trips out when take earth wire out light works?
By earth wire I am assuming you mean the bare wire and that a black and white wire are connected to the light. If when you connect the earth wire and breaker trips then there is a short between black and earth. It could be a bad ground connection, an internal short in the light fixture where black wire "hot" is connected to metal on the fixture through a nick in wire.
What is an open ground when testing 110 ac wiring?
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)
Can a ground wire be connected to the white neutral in Clearwater Florida if no ground wire ia available?
Yes, if there in no ground wire that is acceptable on a home with no ground wires.
In a typical home electrical panel installation the main ground wire is connected directly from a ground rod driven into the ground to the what?
EarthIts a earth groundat lower potential then your service
What is a conductor connected to earth?
It is earth wire for protection
How do you know what wire is ground on 200 amp service?
On a 200 amp or any size service the ground wire is easily identified. Look in the distribution panel for the neutral bus bar. This is where the service neutral (white wire) is connected to the distribution panel. There you will see a bare copper wire connected to the same neutral bar. This is the ground wire that is connected to the ground rods out side of the house.
