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A Lighting Audit - Assignment Example

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The purpose of the paper “A Lighting Audit” is to learn the information needed to do a lighting audit. Color Rendering affects the quality of light. Some lamps make everything look cool (blue light) while other lamps render colors in a fashion more similar to natural lighting…
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A Lighting Audit
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Download file to see previous pages Seeing text for older workers is more difficult than for younger workers. Cool, high-quality light can create eye strain while the same if true if the lighting is too warm. The age of the workers is important when considering the type of lighting chosen.
A lumen is a measure of visible light and a watt is a measure of energy. The lumen/watt ratio gives an indication of how much light is produced per amount of energy input. This is not a measure of lighting quality, but a measure of efficacy (efficiency).
Compact Fluorescents are much more efficient than Halogens and Incandescent. They operate at a cooler temperature. They also produce a cooler light. Regular Fluorescents are even more efficient than Compact Fluorescents.
High-Pressure Sodium and High-Pressure Metal lights are usually used for outdoor lighting. Some of these lights can be modified to work in setting such as big-box stores so that the quality of lighting is better and has better color rendering. These modifications make the lights less efficient, however. The unmodified lights are much more efficient than either type of Fluorescent, but the light quality is low.
In a typical office work environment, 40% of the operating cost for the physical environment is to support lighting. Having the correct type of lighting is important, but using the most efficient lighting is very important as well. These two considerations must balance one another.
Electronic ballasts can add to this. This can be a problem because it will interfere with other electronics affected by linear distortion. The ideal is to be lower than 20% but 32% is acceptable. The only real thing you can do to reduce THD is to pay for electronic ballasts that produce less THD. This is viewed as a market problem, and manufacturers will only make electronic ballasts with lower THD when the demand is there. ...Download file to see next pagesRead More
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