[Amps] Safety grounding - was Mains Isolation Transformer

[R L Measures]

On Jul 4, 2006, at 9:18 AM, Gudguyham at aol.com wrote:

> In a message dated 7/4/2006 10:12:30 A.M. Eastern Standard Time,
> amps080605 at w4zt.com writes:
>
> Lou,  that wouldn't necessarily be true.  If you had a 240 Volt device
> that  didn't have any 120 Volt needs at all, you would still HAVE  
> to use
> that  plug to get the power from the generator.

Bingo

> In that case,  two
> conductors would have zero current. You either put the correct 4  pin
> plug on your three wire cord or make an adapter.
> STRICTLY SPEAKING A DEVICE THAT REQUIRES NO NEUTRAL AND IS 240V  
> WOULD ONLY
> HAVE A 3 WIRE PLUG ON IT.

Newer electric range plugs and sockets have 4-conductors.

> ...

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