By Craig DiLouie
Complex lights Controls is edited by means of Craig DiLouie and written for engineers, architects, lights designers, electric contractors, vendors, and construction vendors and bosses. complex lighting fixtures controls, indicated via study because the "next large thing," at the moment are mandated by means of the ASHRAE/IES 91.1-1999 strength average, the foundation for all nation strength codes within the united states, and have gotten the norm instead of the exception in new development. This booklet offers in-depth information regarding the main tendencies, applied sciences, codes, and layout ideas shaping using today's lighting fixtures keep an eye on structures, together with dimming, computerized switching, and worldwide in addition to own keep watch over.
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Additional info for Advanced Lighting Controls: Energy Savings, Productivity, Technology and Applications
Control schemes can include any of the time clock, photocell, or other arrangements already mentioned, as well as a wide range of manual controls and an ability to interface with building automation equipment. Even wallbox dimmers, which have generally been considered stand-alone devices, now can be interfaced and controlled by external systems. Other types of waveform management controls permit dimming of gas-discharge sources without use of special ballasts, but the low end of their output range is somewhat high, from 15 percent to 50 percent, depending on the specific device employed.
These systems consist of dimmer cabinets and control stations, typically connected with low-voltage control wires as shown in Figure 1-15. Cabinets may contain any number of dimmers capable of handling small and large loads controlling a variety of lamp sources. Control stations can range from a simple manual slide control to multiple preset controllers in a variety of configurations. Typical applications include churches, restaurants, meeting rooms, and multiuse facilities. Variable Output Ballasts Variable output ballasts represent the latest trend in dimming control technology.
Control Voltage Some controls can be hooked to line-voltage power, and others must be connected to low-voltage (DC) power. For a new building, both are possibilities, but for a partial renovation, it may be beneficial to use low-voltage controls. Typical coverage patterns (applies to occupancy sensors). There are several different kinds of coverage patterns and mounting configura- How to Design a Lighting Control Scheme 49 ——————————————————————————————— OPERATING COST COMPARISON PRIVATE OFFICE, 128 SQ.