To play this game, you need a sharp eye, a quick mind and a 2014 National Electrical Code book. (Fill-in-the-blank questions are looking for the exact word(s) used in the NEC.)
My main concern for this particular installation is in reference to 690.64(B)(2). The new 400-amp subpanel is being supplied by 400-amp disconnect which is fed by a line side tap ahead of the service-main disconnect.
Ask leaders what members want from them and you’re likely to hear such words as friendly, positive, responsive, and problem-solver. Whatever else they may be, these are “the comfort words of membership.” It is how leaders picture themselves.
To assist the Strategic Planning Committee and consultants in the development of a new plan, we conducted a membership survey in January and February 2016.
The transformer is one of the most basic of electrical equipment found in a power distribution system, and just when you thought that a hunk of iron wound with wire couldn’t possibly be transformed, the industry does something that blows your mind.
Like any machine used in manufacturing there can be potential risks associated with 3D printers. Different levels of risk are associated with different 3D printer market segments
In this article, we will discuss the fundamentals of bonding and grounding. To start, we should get an understanding of the difference between bonding and grounding.
UL has several tools available to de-mystify hazardous locations. UL has been certifying hazardous location equipment for over 100 years, and has launched a smart device application explaining the different hazardous locations classification systems.
The concept of the receptacle has been largely unchanged since the first National Electrical Code® (NEC®) in 1897; by the 2017 edition, it will have been 120 years.
When dielectric liquid-filled equipment is installed outdoors, does it have to be located in fire-rated rooms and vaults? The answer could be found in Rules 26-014, 26-242 and 26-244 of the CE Code.