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William,<br>
<br>
It is interesting that the 2008 code also has the "utility-interactive"
typo. None the less, it is appropriate to put photovoltaic circuits in
metal conduit for off grid systems. The risk to fire fighters is
nearly the same in both cases.<br>
<br>
Kent Osterberg<br>
Blue Mountain Solar<br>
<br>
<br>
William Miller wrote:
<blockquote cite="mid:6.0.1.1.2.20090607152222.03a5bfe8@millersolar.com"
type="cite"><font size="3">Dick, colleagues:<br>
<br>
I was at a seminar in which John Wiles lectured building officials and
installing contractors. At one point I asked about 690.31(E)
(2005). Mr. Wiles glibly commented that the restriction of that
section to utility-interactive systems was a "typo" in the 2005
edition. There were many officials present that inspect and
plan-check my work. Based on Mr. Wiles remark, several inspectors
have been trying to apply 690.31(E) to off-grid systems. This has
cost me time, money and aggravation.<br>
<br>
Mr. Wiles apparently does not know the responsibility he has when he
makes off-hand remarks. His opinion that a given passage in the
code is not correct does not negate what is in black and white.
With all due respect, I wish he would be a bit more temperate in his
remarks.<br>
<br>
Sincerely,<br>
<br>
William Miller<br>
<br>
PS: Mr. Wiles showed slides of his home installation. It may
be a code complaint installation, but there is nothing pretty about the
workmanship. I think a thorough familiarity with the code does not
alone comprise a complete education on PV installation.<br>
<br>
Wm<br>
<br>
<br>
<br>
At 10:07 AM 6/7/2009, you wrote:<br>
</font>
<blockquote type="cite" class="cite" cite=""><font size="3">According
to John Wiles, the code
making panel for 2008 Article 690 was<br>
disbanded<br>
by the NFPA because it, "violated NEC code developement procedures
and because <br>
of other issues." Doesn't leave one with much confidence in their
work.<br>
<br>
<br>
Dick Ratico<br>
Solarwind Electric<br>
Bradford, VT <br>
</font></blockquote>
</blockquote>
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