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<font size=3>Colleagues:<br><br>
I think the correct answer is: there are no short cuts to good
workmanship. It requires intelligent design, a judicious selection
of materials and careful installation. EMT is appropriate in low
corrosion environments, PVC if you can control UV damage and accommodate
expansion. There are aluminum and stainless conduits for the
extreme environments and demanding aesthetics. I am sorry that
there are no easy ways to pursue quality.<br><br>
It is my understanding that the European model is to "plug and
pray" with quick connect cables, running them across roof tops and
stapling them to exterior walls. I don't know this for a fact, but
if it is true, I hope that market does not drive the US market towards
reduced standards. I belive it is short sighted to skimp on wiring
methods with dangerous power feeds. I think the loss of conduit
boxes on modules is a direct result of European installation techniques
and a trend towards reducing labor costs. I welcome information
from those of you with experience in other markets to verify these
hunches.<br><br>
William Miller<br><br>
<br><br>
At 04:21 PM 10/9/2009, you wrote:<br>
<blockquote type=cite class=cite cite>EMT needs to be
"pickled" with vinegar or acid, to get the paint to hold.
I love it for inland work, but near the ocean, it'll rust through in 5
years. I'm not sure how much more time paint would buy you.<br>
Anybody use other plastic materials HDPE? Supposed to not have the
expansion problems of PVC.<br><br>
<br>
R. Walters<br>
<a href="mailto:ray@solarray.com">ray@solarray.com</a><br>
Solar Engineer<br><br>
<br>
<blockquote type=cite class=cite cite><br>
If you have to run around the roof with EMT, you can protect it from
rust<br>
with a coat of paint.<br><br>
Regards,<br>
-Hans<br>
</blockquote></blockquote>
<x-sigsep><p></x-sigsep>
<u>Please note new e-mail address and domain:<br><br>
</u>William Miller <br>
Miller Solar<br>
Voice :805-438-5600 Fax:
805-438-4607<x-tab> </x-tab><br>
email: william@millersolar.com<br>
<a href="http://millersolar.com/" eudora="autourl">http://millersolar.com<br>
</a>License No. C-10-773985<br>
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