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Design Criteria for Lighting Interior Living Spaces

This Recommended Practice describes lighting for residential living spaces and other interior spaces where a residential atmosphere is desired, including waiting rooms, reception areas, eating areas, executive suites, and lounges. This Practice defines lighting problems in detail and gives guidance for choosing among possible solutions, but specifies no one "best" solution. Thus, imagination and design originality are championed. Topics treated in detail by this Practice include: Light and color presenting an explanation of the Munsell System, which specifies colors in terms of hue, value, and chroma; Analysis of common visual tasks giving task descriptions, diagrams, and suggested illuminances for each task; Lighting system elements including several pages of tables listing the physical and performance characteristics of incandescent sources and fluorescent sources; Lighting equipment for interior spaces covering all manner of standard luminaires and even custom built-ins such as skylights; Architecturally integrated lighting illustrating the many common situations where lighting is structurally concealed or built into cabinets; and Lighting controls describing switches, relays, dimmers, motion sensors, and carrier current control systems. This Practice also includes a glossary of those terms frequently used to discuss and specify the lighting for interior living spaces.

Content Provider
Illuminating Engineering Society of North America [IESNA]


As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.