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As long as we're already on the subject, BESIDE the NEC requiring it,
why is it that we have to bond the ungrounded conductor on the battery
side of a DC system??? I believe that we are the only country in the
world that has this requirement. As long as all the system cabinets,
mounting plates, housings and etc are grounded, what is gained by
including a battery conductor? I'm not talking about HV inputs from an
array, just the battery busses.<br>
<br>
I have been asking this question since forever, and the only
explanation seems to be the recital of the Code. Obvious problems can
occur when there is a + grounded piece of equipment in the mix, since -
well, it's obvious.<br>
<br>
Matt T<br>
<br>
boB Gudgel wrote:
<blockquote cite="mid4A68B2D2.6050602@midnitesolar.com" type="cite">Larry
Crutcher, Starlight Solar wrote:
<br>
<blockquote type="cite">Hi Jay,
<br>
<br>
An interesting quandary indeed.
<br>
</blockquote>
<br>
This is another good example of an application that I was trying to
grill Sunpower about --- as far as grounding their modules that need to
be positive grounded
<br>
in order to take advantage of their higher efficiencies. They
couldn't answer this simple question. How would you use one in an
airplanefor instance ?
<br>
There are solar powered airplanes (sort of) Is a large faraday
shield enough ? Sort of like the ground radials that Larry has
mentioned. I would
<br>
imagine that if you get large enough radials that it ~might~ approach
being a virtual ground. Works for antennas though.
<br>
<br>
I like questions like this one. Sure makes one think a bit.
<br>
<br>
boB
<br>
<br>
<br>
<br>
<br>
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