Re: [CAD_CAM_EDM_DRO] FYI: Home Depot Good buy on conns/cables 20' 3Phase

Thanks for the info Jeff. So it is ok to use the red,black,white,green
stuff for 3 phase then. Taping the white makes sense. I've heard of
painting the end of the white wire in romex black when used for things
like 3 way switches or something like that. What does SO stand for?

Drew

On Oct 3, 3:03pm, Jeff Barlow wrote:
> Subject: Re: [CAD_CAM_EDM_DRO] FYI: Home Depot Good buy on conns/cables 20
> Drew,
>
> Depends if you are talking rules or convention. The green ground is an
> NEC rule. Black, red, and blue for the phase wires is a common
> convention but is not required. All the code says is that they can't be
> white, gray, or green.
>
> One other rule is that the high leg of a grounded center tapped delta
> system must be orange. In that case the common convention is brown,
> orange, yellow.
>
> Four wire SO cord only comes in black, white, red, green, and the code
> has an exception allowing it's use on 3 phase. I like to put blue (or
> orange) tape on the white wire, though. It's a nice little reminder to a
> guy who might be about to replace the plug with the wrong kind.
>
> Or.... you could always call a licensed electrician. :)
>
> Jeff
>
> On Tue, 3 Oct 2000 10:38:33 -0700, you wrote:
>
> >Jeff,
> >
> >Aside from the plug requirements, what are the correct wire colors
> >for 3 phase? I pretty much figure it's green for ground and two
> >of the hot wires are red and black but what color should the other
> >hot be?
> >
> >Drew
>
>-- End of excerpt from Jeff Barlow



--
Drew Rogge
drew@...