Safety first is always a good idea, but especially so in the electrical industry. The job you do as an electrical professional is so essential to the business of everyday life.
Do I have to use a power supply/driver that is specifically Listed as an LED driver or low voltage lighting power supply? 2017 NEC 411.4(B)(2) just requires a Listed power supply. Listed for what?
Even though May is National Electrical Safety Month highlighting awareness of electrical safety, we can’t become complacent during the other 11 months. It only takes a second to incur an injury, but a lifetime to heal.
It is imperative that the NEC evolves to engulf these innovative techniques. With that backdrop in mind, this article will look at some of the more noteworthy changes that are being proposed for the 2020 NEC.
Codes, standards, equipment, and the organizations certifying that equipment meets a particular standard are continually changing. The harmonization of U.S. standards with international standards—while potentially reducing costs in the international arena—may complicate the application of these standards as they are adopted.
Zone-selective interlocking (ZSI) has been in practical use since the mid-1980s. This technology was created to speed up the tripping time for some faults within a zone of protection without sacrificing selective coordination and interjecting nuisance tripping into the system.
Requirements for testing of integrated fire protection and life safety systems are provided in Part 3 and Part 9 of the National Building Code of Canada 2015 (NBC) in respect to newly constructed buildings.
Energy storage systems help us to realize the true benefits of renewables and advanced grid technologies. They mitigate intermittencies and unlock the potential of solar and wind power by storing clean energy as it is created, so that it can be used when it is actually needed.