What do the 2020 NEC surge protection requirements mean?
Why the focus shifted? Before any lightning protection standards could be developed, it was important to assess the extent of damage to facilities caused by lightning strikes. For years, the National Electrical Manufacturers Association (NEMA) Lightning Institute has been trying to obtain this information from nationally recognized insurance companies. The goal of obtaining the information […]
Explanation of NEC Section 392 regarding cable trays
NEC Article 392 describes cable trays, their components, proper connection methods for cable trays, and when and where they are allowed and not allowed. It also focuses on construction and installation practices for cable trays. The following is a summary of the most important points contained in Article 392 of the National Constitution: Cable tray […]