2006-07-21 00:56:56 · 17 answers · asked by pablo 2 in Home & Garden ➔ Do It Yourself (DIY)
no
2006-07-21 01:00:02 · answer #1 · answered by Anonymous · 2⤊ 0⤋
The job of the Earth Wire is to draw current away from faulty wiring and appliances and earth it into the ground usually via connections attached to water pipes [under the sink ]in the kitchen/bathroom. This is the purpose of an earthing system.
2006-07-21 08:14:55 · answer #2 · answered by Anonymous · 0⤊ 0⤋
By "earth wire" I'm assuming you mean the ground wire.
Any wire that has a current running through it has a magnetic field. This field extends beyond the insulation and will affect any wire that is adjacent to it. This being the case it is usual to have a low-level current on the ground and neutral wire.
2006-07-21 08:07:03 · answer #3 · answered by opie with an attitude 3 · 0⤊ 0⤋
NO! if there is current in earth wire, than the earth wire to the ground might have broken. A earth wire should be tightly tied to the Earth Elect rod in the ground. when a leakage happens, a faulty current from electrical appliances pass through it to the ground. when this happens, A off balance system in Current Earth Leakage Circuit Breaker will trips, and disconnect the electric supply to your house. rectify your appliances, and everything will be ok. If the earth wire is broken, than the faulty current in your electrical appliances have no place to escape. and if you touch it bare foot...thats it!
2006-07-23 13:15:11 · answer #4 · answered by PAL L 3 · 0⤊ 0⤋
In theory, we strive to make the answer no, but In practice, often times its yes.
We call the earth 0v as a reference, but in fact the earth does carry an electrical charge. We only call it 0v as a reference point in which to create an electrical potential with. Think of it in this way. When your in your car at a dead stop, your speedometer reads 0. this is into reference to the perceived speed you are traveling while standing on the surface of the earth. In actuality you are traveling at many thousands MPH through space, but because you are traveling at the same speed as your surroundings, It feels like your not moving.
Although we reference the earth at 0v, it does carry a charge, and it varies in electrical potential at different points by hundreds of volts.
In residential wiring, sometime a ground loop can occur. This is a condition where differences in electric potential occur at the various locations a ground wire is attached to the earth. Where i live, our residential ground wires carry between 2-5 volts (our earth is mostly sand, very poor conductor...You can literaly put the probes of your meter in the ground a couple of feet away from each other and read a couple of volts). Usually you would never notice, but where it does show up in my area, is when a hot tub is puton a concrete pad. The concrete pad, in effect, acts as a "ground rod" and because of the potential between the house ground rod and the pad, a wet foot on the concrete while touching the water of the hot tub causes a 2-5 volt shock.
hope this helps
2006-07-21 09:36:19 · answer #5 · answered by Anonymous · 0⤊ 0⤋
NO. If you have current, disconnect all your appliances, then recheck. Frequently, motorised appliances have an interference suppressor capacitors (condensers) between live-earth and neutral-earth. Generally, these are in the form of a single unit, maybe 1 inch or more across by 3 inches long.A fault on one of these (in your Washing Machine for example) will cause the problem you are seeing. Replace the fauly with new.
2006-07-23 13:37:21 · answer #6 · answered by johncob 5 · 0⤊ 0⤋
I have known electrical installations where, when tested, and the earth wire was disconnected from "ground/earth".The earth wire seemed live, when tested with a neon tester. When connected to earth, this induced current leaked away to earth with no ill effects. I never rely on a neon tester.
2006-07-21 19:53:30 · answer #7 · answered by Dick s 5 · 0⤊ 0⤋
No... the earth is a "Fail safe " ... current should only flow down a Earth wire in the event of a "Short"....and to stop you from dying.!
Are you sure you are not looking at Ohm's ... ( Recheck test meter )
2006-07-21 08:15:05 · answer #8 · answered by Anonymous · 0⤊ 0⤋
No!! It is purely there to earth your equipment! If you have any current flowing through your earth wire then there is something wrong with your appliance!! Unplug and get someone to check it out. Either that or you wired it incorrectly!!
DANGER!! DANGER!! Will Robinson!!
2006-07-21 08:04:03 · answer #9 · answered by i_b_moog 3 · 0⤊ 0⤋
No.
The earth way is a protective way which ensures that in the event of a short, the current is dispersed quickly. This in turn raised the amperage and trips the fuse.
2006-07-21 08:02:09 · answer #10 · answered by Boris 5 · 0⤊ 0⤋
No. If there is then your RCD should trip unless you have wire fuses which may not trip if there is a small current. If your have a current then there is a problem. How are you measuring current? Are you sure you are not measuring the voltage?
2006-07-21 08:06:48 · answer #11 · answered by watts2260 2 · 0⤊ 0⤋