9781422276846

Words to Understand

circuit breaker: A device in a building or structure that stops the flow of excess current that may damage the electrical circuit. current: A measure of electrical flow. It is measured in amperes. electrical conduit: A tube that is used to protect and direct electrical wiring. It is made of metal, plastic, fiber, or fired clay. National Electrical Code: A series of rules in the United States for safe electrical design, installation, and inspection that were developed by the National Fire Protection Association. The code has been adopted in all fifty states. photovoltaic device: A type of technology that is used to generate elec- tricity directly from sunlight via an electronic process. self-employed: Working for oneself as a small business owner, rather than for a corporation or other employer. Self-employed people are responsible for generating their own income, and they must provide their own fringe benefits (such as health insurance).