Neutral Bonding or Circuit

@lchiat (1070)
Malaysia
April 14, 2010 5:57am CST
Hi, i am wondering what is the black wire Neutral bonding? Where do it come from? Like the green wire is Earth which mean we use earth rod hit into the ground to get it. So how bout the Neutral? Where do it come from? Anyone know bout it?
1 response
@petersum (4525)
• United States
14 Apr 10
The neutral is the center point of a Y configuration generator, which is also Earthed at the site. On transmission lines, neutral wires and cages surround the line phases as a safety feature. In theory, Neutral and Earth have the same (zero) potential. However, in practice, a few volts difference is often found, increasing as you get further away from the source. Sub stations may also Earth the neutral conductor. In Europe, the Neutral is a blue wire instead of black. 220 volt single phase, as found in your home, is measured between a line (phase) and neutral. 380 volt is found between two lines or phases.
@lchiat (1070)
• Malaysia
14 Apr 10
Hi Peter, i like your explanation. So what if i buried another earth rod at my garden then connect the live to a bulb then another connect to the earth will it light up?
@petersum (4525)
• United States
15 Apr 10
Yes. And before you ask, it will still be recorded by your electricity meter. No free power here! However, you might be able to light a pair of LED's connected between Neutral and Earth. Remember you are dealing with AC so use one diode facing each direction. This really would be free! WARNING: Neutral is still dangerous! Don't touch it with bare hands or uninsulated tools.