Bill:
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?
If there is a valid safety reason, then let's all get behind it and become
adept at providing this GEC.
If the rule makes no sense, let's advocate that it be changed.
What is the reason for providing this GEC to an inverter?
Thanks in advance.
William Miller
At 09:51 AM 3/4/2011, you wrote:
System grounding requirements.
-----Original Message-----
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mark Frye
Sent: Friday, March 04, 2011 7:51 AM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] grounding the Enphase inverter
The interesting thing to me is the underlying assumption in the Code that a
GEC is requried for grid-tied inverters at all. Why isn't EG sufficient for
function and safety.
Which of the following common electrical equipment has the same requirement:
UPS
Motors with regenerative energy disipators
DC power supplies
Standby generators
??
Mark Frye
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