>
>>The 4 wire versions are for 3 phase or special
>>applications on specialized equipment using a neutral seperate from the
>>ground.
>
>
> The neutral is almost always separate from the equipment ground. There
>are ONLY two times when this is not the case, a dryer and a range may use
>the neutral conductor for the equipment ground. An equipment ground is not
>defined as a conductor by code, and may NEVER be used as a neutral
>conductor.
>
>>> >Should I use a 4 wire outlet and bring the power line ground from the
>>> >breaker box to connect to the amp chassis?
>>
>>Its not necessary if you ground the chassis to the neutral in most cases
>>here in the states.
>
> A chasis ground is a common conductor, or neutral. This is not to be
>confused with the AC line equipment ground. One is a conductor, and the
>other is not. If your amplifier uses a common chasis ground, the chasis MUST
>be connected to an AC line neutral.
? Amen, Jim.
>Any metal objects that are not a part of
>this common chasis, and are not hot, must be bonded together, and attached
>to the AC line equipment ground.
>
>>If you were in Europe or some other countries around
>>the world, the 4th wire is a requirment to meet standards. It would
>>basically be connected to the same terminals as the neutral in the box
>>and serves as an ADDITIONAL ground in case the other one breaks or comes
>>loose.
>
> This is a dangerous assumption that has killed people in the past.
>
>>You only have 3 wires coming in your house now.
>
> WRONG. There are three conductors, 2 hots and a neutral (no ground)
? Neutral is grounded at the breaker box.
- later
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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