Re: [CAD_CAM_EDM_DRO] Re: blown Gecko - shorted output ?

In a message dated 2/26/2003 6:07:34 PM Mountain Standard Time,
j33pn@... writes:

> You may need to connect the negative
> outputs of your DC supplies to the neutral line of your AC inlet to have
> them properly grounded.

The neutral line is never to be used as a ground line.

The neutral wire is the groundED, line and only carries the unbalanced
current between the 220 lines. Or if a simple 120 volt circuit, carries the
entire current.

The ground wire is the GROUNDING wire and is not for carrying any electrical
current except under a faults condition.

In a 220 volt circuit with a neutral line, the neutral is held to ground
potential back at the incoming service. It is NOT to be grounded any place
else, under any conditions.
If the neutral line opens someplace it will float anywhere between the two
hot wires, this will be controlled by the loads on the two lines to neutral.

A heavy load on one line to neutral can cause the open neutral to "move " up
to the line voltage on that side, and could result in almost 220 volts from
the neutral to the other line. The exact balance is determined by the
individual loads.
bill


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