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Chapter Page 1 Introduction
Objective Specification of Illumination
Subjective Specification of Illumination
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aluminum Amperes angle approximately artificial light average illumination branch circuit building candle candlepower ceiling cell cent characteristics coefficient Color Temperature colored light Conductors cost cove daylight determine diffusing direct current direct lighting distance distribution curve E. S. Trans effect efficiency feeder Figure filament floodlight fluorescent lamps flux foot-candles ft-c gives glass blocks horizontal incandescent lamps indirect installation light source lighting equipment lighting system located louver lumen output lumens luminaire luminous element luminous intensity Magazine of Light Manufacturing material measurements ment mercury vapor lamps meter method motor National Electrical Code necessary Nela Park obtained operation outlet panels pattern plane power factor problem produce projector radiation recessed cove reflected glare reflection factor reflector room index semi-indirect shadows shows side walls spacing specific surface Table tion transmission trough units utilization factor values vertical voltage drop Watts wire zone