NEC rules on calculating inductive and LED lighting loads for circuits supplying lighting units that have ballasts, transformers, autotransformers, or LED drivers...More
Which Article of the 2011 NEC consists of only two sections, uses the word "specific" in the title, and makes reference to seven other Articles in the Scope statement?...More
Fill in the blank with the appropriate answer.
Excluding any exception(s), after installation, receptacles __________ faceplates of insulating material, and shall project a minimum of 0.015 in. from metal faceplates....More
When mounting receptacles in boxes that are set back from the finished surface as permitted in 314.20, the receptacles shall be installed so that the mounting yoke or strap of the receptacle is _________ ....More
LEDs have unique and compelling characteristics that make them ideal for industrial lighting applications. But there are a variety of misconceptions about LEDs, how well they work, how long they last, and more. Digital Lumens developed this whitepaper to dish up the facts around LEDs and address some common misunderstandings....More
An arc flash is associated with the explosive release of energy caused by an electrical arc, due to either a phase-to-ground or a phase-to-phase fault. This kind of fault can result from many factors – a dropped tool, accidental contact with electrical systems, buildup of conductive dust, corrosion or improper work conditions.....More
Abstract: In this webinar, Mike will not only explain the current NEC requirements for GFCIs and AFCIs, but he'll explain how they operate, what causes their premature failure, and when they won't provide the safety protection you might have thought they would.
Abstract: This webinar will teach attendees the difference between risk and hazard, and how the choice of system grounding has a direct impact on reliability and safety.
