Late reply, but if anyone ever needs the code reference for William's
method:
404.6 Position and Connection of Switches.
(C) Connection of Switches. Single-throw knife switches and switches
with butt contacts shall be connected such that their blades are
de-energized when the switch is in the open position.
Voila- PV to the load side.
-------- Original Message --------
Subject: Re: [RE-wrenches] Load or Line Side was Solar accumulation panel
From: William Miller <will...@millersolar.com>
To: RE-wrenches <re-wrenches@lists.re-wrenches.org>
Date: 2010/1/13 22:51
Carl:
You are correct. I had the exact argument with an inspector. Here is
what I did to make a convincing argument: I opened the disconnect and
then reached in and touched the load side contacts (inverter side) with
my fingers. I turned to the inspector and said, "Now it's your turn to
touch the line side." Case closed.
William Miller
At 05:17 PM 1/13/2010, you wrote:
Wrenches,
I just had an AHJ require me to switch the load and line connections
on the fused AC disconnect which sits between the inverters (AC
Combiner panel) and the point of utility connection. The inverter
was connected on the LOAD side of the fused disconnect, and while the
AHJ agreed this was the safest configuration, (when the disco is OFF
the fuses are safe to remove) he insisted that the PV array should be
connected to the LINE side of the disconnect since it is supplying
power rather than acting as a LOAD. Any similar experience or
arguments I can make based on the NEC which might help change the
position of the AHJ next time round? I still believe our initial
installation represents the safest configuration.
Carl Adams
SunRock Solar, LLC
_
_______________________________________________
List sponsored by Home Power magazine
List Address: RE-wrenches@lists.re-wrenches.org
Options& settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules& etiquette:
www.re-wrenches.org/etiquette.htm
Check out participant bios:
www.members.re-wrenches.org
_______________________________________________
List sponsored by Home Power magazine
List Address: RE-wrenches@lists.re-wrenches.org
Options & settings:
http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
List rules & etiquette:
www.re-wrenches.org/etiquette.htm
Check out participant bios:
www.members.re-wrenches.org
