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<font size=3>Bill:<br><br>
Other than complying just because this is a rule that has to be
followed, is there any logical foundation to the requirement to provide a
#8 ground to a circuit with OC protection at 20 amps?<br><br>
If there is a valid safety reason, then let's all get behind it and
become adept at providing this GEC.<br><br>
If the rule makes no sense, let's advocate that it be changed.<br><br>
What is the reason for providing this GEC to an inverter?<br><br>
Thanks in advance.<br><br>
William Miller<br><br>
<br><br>
<br>
At 09:51 AM 3/4/2011, you wrote:<br>
<blockquote type=cite class=cite cite>System grounding
requirements.<br><br>
-----Original Message-----<br>
From: re-wrenches-bounces@lists.re-wrenches.org<br>
[<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" eudora="autourl">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>]
On Behalf Of Mark Frye<br>
Sent: Friday, March 04, 2011 7:51 AM<br>
To: 'RE-wrenches'<br>
Subject: Re: [RE-wrenches] grounding the Enphase inverter<br><br>
The interesting thing to me is the underlying assumption in the Code that
a<br>
GEC is requried for grid-tied inverters at all. Why isn't EG sufficient
for<br>
function and safety. <br><br>
Which of the following common electrical equipment has the same
requirement:<br><br>
UPS<br>
Motors with regenerative energy disipators<br>
DC power supplies<br>
Standby generators<br><br>
??<br>
<br>
Mark Frye</font></blockquote></body>
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