By Craig DiLouie
Complex lights Controls is edited through Craig DiLouie and written for engineers, architects, lights designers, electric contractors, vendors, and construction proprietors and executives. complicated lights controls, indicated through learn because the "next titanic thing," at the moment are mandated by way of the ASHRAE/IES 91.1-1999 power regular, the root for all country strength codes within the united states, and have gotten the norm instead of the exception in new development. This publication offers in-depth information regarding the main developments, applied sciences, codes, and layout ideas shaping using today's lights regulate structures, together with dimming, automated switching, and worldwide in addition to own keep an eye on.
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Additional info for Advanced Lighting Controls: Energy Savings, Productivity, Technology and Applications
In these situations, it is desirable to control luminaires adjacent to the glazing separately from those further in to obtain maximum energy savings while still providing necessary task illumination. Waveform control dimmers or variable output ballasts are well suited for the application, because they can be sized to the appropriate control zone. Depending on the dimming system chosen, it may be on the dimming system chosen, it may be best to specify that power wiring for the luminaires run parallel to the windows rather than radically outward from the building core.
Introduction to Lighting Control 39 Besides supporting such features as telephone control and distributed master switching, these systems excel in providing management data. For example, at the end of the month, the operator can simply ask the system for a report on the total lighting energy consumption for the last period. If that consumption is excessive, the operator then might ask for a report of every load that exceeded its expected runtime during the month. Having identified the “offenders,” a profile of the actual runtime for each be used to identify why and how the excess occurred.
This chapter originally appeared as an article in EC&M; reprinted here with permission. 57 58 Advanced Lighting Controls ON/OFF OPERATION It may seem simple, but on/off operation is an area where many designers create an unworkable lighting scheme. For example, consider a metal-halide lighting system. Restrike time, which refers to the time it takes a lamp to begin giving off light after being turned on, is crucial for this type of system. Once metal-halides are shut off, they take several minutes to begin giving off light again after being turned back on.