My Neutral and Ground is connected at the main panel but also at the barn
300 feet away. I am running a 3 wire 100 amp 240v power 4 00 aluminum line
to the barn from a 100 amp 240v breaker located in my main distribution box.
I didn't like the idea of a gnd neutral tie that far away from the barn, so
I tied them together at the barn with a second ground rod located at the
barn. Is that such a bad idea?
----- Original Message -----
From: "Ian Hill - K8MM" <email@example.com>
Sent: Tuesday, 03 November, 2009 10:24 AM
Subject: Re: [Amps] TL922 Power Plugs
> There isn't anything ILLEGAL about connecting the neutral and ground
> anywhere else beside the main panel. You're violating the NEC but not
> committing a criminal offense. ;-)
> Jim Brown wrote:
>> On Thu, 29 Oct 2009 18:17:21 -0400, Ian Hill - K8MM wrote:
>>> Houses are typically feed off of a center tapped secondary. 240V
>>> measured between phase conductors and 120V between either phase
>>> conductor and the center tap. There isn't any sort of dangerous short
>>> by having the neutral ( i.e. center tap) and the ground bonded together
>>> in the primary distribution panel in a house....its supposed to be
>>> connected that way.
>> Exactly right. One other VERY important point -- it is both ILLEGAL and
>> UNSAFE to connect neutral to ground at any other point. The proper
>> connection of a 240V load is to the two ends of the transformer only,
>> and with the ground wire connected for safety.
>> There is some equipment that needs both 240V and 120V to operate. That
>> equipment gets its 240V from the two ends of the transformer, and MUST
>> get 120V between one side of the transformer and NEUTRAL, NOT GROUND.
>> Jim Brown K9YC
>> Amps mailing list
> Amps mailing list
Amps mailing list