Lighting control design continues to evolve toward smaller control zones for flexibility, energy savings, and responsiveness. This is the topic of the most recent controls column that Charles Knuffke, Systems Vice President and Evangelist for Wattstopper and Chair of the Lighting Controls Association, contributed to LD+A Magazine.
When thinking about lighting controls, it’s amazing to look at where we’ve been and where we’re headed—and how much control/sq ft we’re now achieving. While we’ll end up at the current state of technology (luminaire-level lighting controls), it would be helpful to first consider the founding energy-saving controls of the past, still found throughout existing buildings and at new construction projects. We’re talking about the triumvirate of basic electromagnetic lighting controls—contactors, relays and powerpacks.
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