PER A CHANGE IN THE 2020 NATIONAL ELECTRICAL CODE EFFECTIVE JAN. 1,2022,0-10V (Class 2) dimming wire insulation colors have changed to eliminate use of any reserved colors, notably gray. The National Electrical Manufacturers Association (NEMA), Arlington, Va., responded with an industry guideline adopting pink as a substitute. Here, I discuss the color change and then take a quick look at the cost-effectiveness of 0-10V versus digital dimming.
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