August;
There was a webinar from Solar ABCs in autumn 2010 that covered many of
these new 2011 NEC issues in detail, in a very practical way for the
professional PV installer.
I believe you can download the whole thing from them right now after the
fact.
I'm quite involved in teaching the PV / firefighter safety curriculum
now, and signage is a big issue. In short-- engraved plastic signs are
fine indoors or out, but don't penetrate an outdoor-rated box screwing
them on! Stick-on vinyl signs need to meet UL 969. The webinar has some
great photos of faded vinyl signs that have become unreadable.
DAN FINK
Executive Director,
Buckville Energy Consulting LLC
NABCEP / IREC / ISPQ accredited Continuing Education Providers
August Goers wrote:
Hi All -
My shiny new copy of the 2011 NEC handbook just came in the mail and I've
started reading through it trying to decipher what changes we should be
expecting in the future. Although California is now just adopting the 2008
NEC which I'm quite familiar with, many jurisdictions will honor the newer
version of the code if we provide a good argument for them.
That said, does anyone who's checked out the new code have any interesting
comments or advice on changes that might affect us out in the field? Section
690.31(E) is interesting in that it has quite a few detailed requirements
for running DC circuits inside the building. Now it looks like MC cable is
acceptable but that there are many more strict requirements about how the
conduit or cable must be run. Labeling the DC conduit and J-boxes is also
going to be a change we'll have to get used to. Hopefully there will be new
reasonably priced label sources available. I'm sure I'm not alone in saying
that it's always been hard to find cost effective labels which can hold up
through the elements.
The grounding section also looks substantially updated.
As always, fun new things coming our way.
Best,
August
August Goers
Luminalt Energy Corporation
1320 Potrero Avenue
San Francisco, CA 94110
m: 415.559.1525
o: 415.641.4000
aug...@luminalt.com
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