Where conductors from both dc and ac photovoltaic systems utilize a common junction box or other enclosure, are there any special identification requirements for these conductors?

The market activity in PV has driven many new products into our markets, making the inspector’s job difficult as technology can change from one job to the next.

In this article we will continue where we left off discussing branch circuit requirements, picking up with 210.8, Ground Fault Circuit-Interrupter Protection for Personnel.

Current and emerging Smart Grid technologies were reviewed and the implications that these technologies may have upon the built environment (such as a facility’s safety features) were assessed wherever the National Electrical Code (NEC) has jurisdiction.