Our role as inspectors plays a vital role in assuring that homeowners and the public are safe from electrical hazards. Being an informed inspector by knowing what the NEC says and why changes occur is critical to your continued role in this process.
Although changes to the 2020 National Electrical Code for PV systems have been covered in previous issues, this article compares the 2017 requirements with the 2020 requirements and determines how clarifications have been made.
Kitchen islands have been getting bigger and bigger for years. How big does the island need to be to require more than one receptacle outlet to be installed? The 2020 NEC requirements answer that question.
Many industrial processes use electrically powered heat trace systems. Installers with little experience in this application think that heat trace cable is used to keep water pipes from freezing, but this is just the beginning.