by JOHN WILES
DOESN’T EVERYONE KNOW EVERYTHING ABOUT PV AND THE CODE?
A new year is here and inspectors have time to ponder PV questions since few people are installing PV systems in the snow or are inspecting snow covered, outdoor installations. Photovoltaic (PV) power systems are evolving rapidly as changes are made in the Underwriters Laboratories (UL) standards governing those systems and in theCode requirements for installing those systems. And, of course, jurisdictions throughout the country adopt various editions of the code at different times. Hopefully, this series of articles will allow inspectors to keep abreast of the changing requirements for the installation and inspection of PV systems. However, questions come up when doing plan reviews or inspecting these systems and sometimes it’s difficult to get those questions answered. I receive several e-mails and telephone questions a week from AHJs throughout the country and in this article, I will address some of those questions that come in most frequently.