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Chapter 13

Lighting Systems

Electrical lighting systems are designed to create a comfortable and
safe home or working environment. There are several types of lighting
systems in use today. Among the most popular are incandescent, fluores-
cent, and vapor lights, as well as several special-purpose types of lighting.
Lighting systems are one type of electrical load.
The three types of lighting systems discussed in this chapter con-
stitute most of the lighting loads placed on electrical power systems.
Incandescent, fluorescent, and vapor lights are used for many lighting ap-
plications. However, there are a few other specialized types of lighting that
are also used. These include zirconium and xenon arc lights, glow lights,
black lights, and infrared lights. The planning involved in obtaining prop-
er lighting is quite complex and may involve several types of lights.

IMPORTANT TERMS

Chapter 13 deals with lighting systems. After studying this chapter,
you should have an understanding of the following terms:

Visible Light
Electromagnetic Spectrum
Candlepower
Lumen
Footcandle
Reflection Factor Footlambert
Street Lighting
Incandescent Lighting
Fluorescent Lighting
Vapor Lighting
Lighting Circuits
Three-Way Switch