[RE-wrenches] 690.47(D)

[Mike Kocsmiersky]

You may also want to cite the 2017 code which does not require the GEC for ungrounded inverters, or rather non transformer isolated inverters.  

 

From: Jason Szumlanski [mailto:jason at floridasolardesigngroup.com] 
Sent: Monday, January 30, 2017 2:55 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] 690.47(D)

 

I don’t think that was the intention necessarily, but I have argued the same thing with varying degrees of success. Fortunately (?) we are still on 2011 here, but 2014 is coming and hopefully AHJs will remain permissive of no additional electrode if the home already has one within 6 feet of the service entrance (which it almost always does).

 

Jason Szumlanski




 

 

On Mon, Jan 30, 2017 at 1:57 PM, William Miller <william at millersolar.com> wrote:

Mark:

For micro-inverter systems I have successfully argued the application of
Exception No. 1. in that the load is the micro-inverter.

William


Lic 773985
millersolar.com
805-438-5600

-----Original Message-----
From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On
Behalf Of markf at berkeleysolar.com
Sent: Monday, January 30, 2017 10:24 AM
To: re-wrenches at lists.re-wrenches.org
Subject: [RE-wrenches] 690.47(D)

Folks,

NEC 2014 is in effect in California. I just pulled a permit for a
residential system and it had a little stamp that had 690.47(D) circled as
a requirement.

Anyone worked with AHJ's in California who are now requiring this? I am
planning to not install the electrode, siting Exception 2 and trying to
say that the existing electrode next to the build is "next to the array"?

Mark


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