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
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.
Designed for new or retrofit applications, these snap-together gangable plastic boxes eliminate the need to construct a multiple-gang steel box out of several individual ones. Starting with a two-gang box, users can build the box they need in seconds, according to the company. For three-gangs or more, separate the box parts, add the center sections needed to make a new, larger box, and then snap the pieces back together. The UL-listed product is preset for ½-in. wall finish thicknesses....More
