I am wondering about the experience installers have with a DC coupled
multimode system design that will comply after January 1 with what I
feel is the biggest mistake/poorly guided part of NEC 2017 690, and that
is 690.12. We are installing two Outback systems with the remote
controlled combiner and even that won't comply after January 1 unless we
parallel more subarrays (There's safety for you, lower voltage-higher
amperage!). Thanks for any insight.
Chris
--
Christopher Warfel, PE
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
(401)466-8978
EEI logo <http://entech-engineering.com>
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