[Amps] 4 wire 240VAC service? What to do now?

[Gary Schafer]

> -----Original Message-----
> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com]
> On Behalf Of Roger (sub1)
> Sent: Tuesday, April 05, 2011 2:06 AM
> To: amps at contesting.com
> Subject: Re: [Amps] 4 wire 240VAC service? What to do now?
> 
> On 4/4/2011 9:38 PM, Gary Schafer wrote:
> > Being that it is only 120 volts you have a hot, neutral and a ground
> wire
> > run out there. You should have the ground wire from the main panel
> connected
> > to the ground buss in the sub panel along with the local ground rod
> out
> > there. Do not bond the neutral to the sub panel ground.
> 
> Ahhh, I thought if you had a ground rod and ground at the remote panel
> then the neutral was grounded at that point as well and that was the
> only condition under which the remote panel neutral was grounded.  No
> ground rod at the remote panel and then neutral is not grounded there,
> but only back at the main panel.
> 
> 73
> 
> Roger (K8RI)

Under today's NEC rules you always need a ground rod at the remote panel if
the remote panel is not in the same building as the main panel. And they
want a separate ground and separate neutral wire run from the main panel.
Ground and neutral remain separate in the remote panel.

The only time that you do not need a ground rod at a remote location in
another building is if you only have one circuit out there as a light and
one outlet.

73
Gary  K4FMX