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IAEI Magazine | Author: Jeff Greef
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Jeff Greef

 

Articles

PV Load-Side Feeder Taps – Compliant or Not?

Most residential electrical services are not designed to accept two sources of power, but they are often utilized for the purpose of connecting PV systems in addition to utility power. NEC Article 705 provides accommodation for such connections, but sometimes these accommodations cannot be used without replacing the service enclosure, or adding a distribution panel, or making a supply-side connection, all of which entail additional cost. Occasionally installers get "creative” by tapping directly into feeder conductors coming off the service to a subpanel in the house. Article 705 is silent on this specific method, and controversy exists as to whether it is a compliant method at all.
SEPTEMBER-OCTOBER 2013