"'nuther Bob" wrote in message
...
On Thu, 17 Jul 2003 03:36:19 GMT, "Mark or Sue"
wrote:
Yes. At the service, where you have the meter and main breaker, this is
your
Service Disconnect and it is where your "Service" stops. This is the last
place that neutral and ground are connected together. If you have another
panel in the house,

If the second panel is physically connected to the main panel via a
1.5" coupling, is it still a "sub panel" and is it a source of
concern ?

This coupling is equivalent to the equipment grounding wire, and may even
replace the equipment grounding wire if the conduit is hard metal (not flex)
and effectively bonded to the service panel or neutral. If these two panels
are side by side, then I'm not sure if you're allowed to have it be a second
service panel or not. You definitely could if the meter was double lugged
and a service conductor went to each. If a breaker in the first panel is
feeding the second panel a few inches away, I'm not sure if that forces it
to be a subpanel or not...I'm leaning towards it having to be a subpanel,
but I can't prove my case.

If this second panel must be a subpanel, then in it you'd need a grounding
bus that is bonded to the 1.5" conduit and the neutral bus would have to be
insulated from the panel chassis.

--
Mark
Kent, WA