Lightning’s perfect storm for destruction is on the solar field. Solar panels’ large—and often exposed and isolated—location make surge protection critical for it to last its lifespan.
What type of copper conductors and copper-clad aluminum connectors are Certified (Listed) for terminating copper-clad aluminum conductors?
What is the rating of a branch circuit, feeder, or consumer’s service as mandated by the Canadian Electrical Code?
Ask any code official who does this job long enough, or even a short time, and they will tell you that many times in their career, the building codes have been used as a “political poker chip,”
Today, the many diverse stakeholders involved in the practical rollout of 5G technologies can rest assured that a concerted effort is underway to bring consistency to this complex undertaking.
Codes and standards exist to ensure the safety of the public. While the goals behind the requirements are the same, sometimes, they are not harmonized with each other despite our best efforts.
When people ask me, “What is electricity?” I tell them that electricity is the presence of voltage.
There have been substantial changes in various sections of the 2020 NEC, particularly in Article 706, which deals with energy storage systems (ESS). These changes suggest that we tread carefully when applying the various Code sections to a particular energy storage system.
As an inspector, I take the National Electrical Code (NEC) very seriously. I have come to realize how important each and every item in this book are to electrical safety and protecting those who use electricity on a daily basis.
This short article discusses the purpose of system grounding, grounding requirements, separately derived systems, and available short-circuit current. Hopefully, it will clear up any misunderstandings or confusion surrounding the grounding and bonding of vehicle-mounted (trailer) mobile generators.