it's that way (' safety ground and neutral go to a different buss bar') so
that the same panel can be used as either a service panel or sub-panel
if it's a service panel, the bonding screw connects the EGC (equipment
grounding conductor) bus bar to the enclosure/ neutral
in a sub-panel, it is kept separate
this is to prevent a division of current between neutral and EGC, in the
return to the power-company neutral, under normal conditions
----- Original Message -----
From: Ron Wright
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, July 06, 2008 9:58 AM
Subject: Re: Re: Re: [Repeater-Builder] Re: RadioShack Recalls Power
Supplies Due toElectrocution and Fire Hazards
Gary,
I've noticed in panels the safety ground and neutral go to a different buss
bar. I had thought maybe because the neutral was sometimes, not now to code,
smaller than the neutral. However, both got connected to the panel case. One
can Ohm out neutral to safety and only see the resistance in the wiring
to/from the panel. However, as you well know, should not be considered the
same.
In most plastic coated wireing I see today the safety wire is green coated,
but some is still bare as you said. I've seen lots of this.
Now in our county following NEC code the safety wire has to be same size as
neutral . No more of the 14-2 w/G cable, but 14-3 one being safety ground
color or bare. Also they are doing something different, a separate set of
wires must be ran between panel and each outlet...no more of one wire to one
outlet and then from here to another outlet, etc. Can you imagine the extra
cost and labor. Not sure what they do at the breaker panel...put in separate
breaker for each outlet. Not sure if this NEC code or something to do with
the hurricane code we have here in Florida. We do lots of construction very
different here, hi.
73, ron, n9ee/r
>From: Gary Glaenzer <[EMAIL PROTECTED]>
>Date: 2008/07/06 Sun AM 10:19:49 EDT
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: Re: [Repeater-Builder] Re: RadioShack Recalls Power Supplies
Due toElectrocution and Fire Hazards
>
>
>
>I don't know what part of the US you live in, but around here (western IL)
>the grounding conductor ('safety ground') is bare in Romex-type cable, and
>may or may not be insulated in conduit, and usually one size smaller than
>the 'main' conductors.
>
>Also, the GC goes to one bus-bar, the neutral to another, the GC bus-bar is
>bonded ot the neutral at the SERVICE panel (incoming power, the one with
the
>'Main' braker that shuts off all power), but is kept separate in all
>sub-panels, and from the sub-panel(s) there must be a separate GC (coded
>green) run back to the GC bus-bar in the service panel.
>
Ron Wright, N9EE
727-376-6575
MICRO COMPUTER CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
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