Electricity is essential for light, power, air-conditioning, and refrigeration. Electrical contractors install, connect, test, and maintain electrical systems for a variety of purposes, including climate control, security, and communications. They also may...
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Electricity is essential for light, power, air-conditioning, and refrigeration. Electrical contractors install, connect, test, and maintain electrical systems for a variety of purposes, including climate control, security, and communications. They also may install and maintain the electronic controls for machines in business and industry. Although most electrical contractors specialize in construction or maintenance, a growing number do both.
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