An electrician is a tradesman specializing in electrical wiring of buildings and related equipment. Electricians may be employed in the installation of new electrical components or the maintenance and repair of existing electrical infrastructure.
"Electrician" and "electrical contractor" are related, though sometimes confused, terms. An electrician is an individual tradesperson; an electrical contractor is a business person or firm that employs electricians to help design, install, and maintain electrical systems. In most of the United States, separate licensing requirements exist for electricians and electrical contractors. Electricians are typically not allowed to perform work unless under the employment of an electrical contractor. Check your state for licensing requirements.
"Electrician" is also used as the name of a role in stagecraft, where electricians are tasked primarily with hanging, focusing, and operating stage lighting. In this context, the Master Electrician is the show's chief electrician. Although theater electricians routinely perform electrical work on stage lighting instruments and equipment, they are not part of the electrical trade and have a different set of skills and qualifications from the electricians that work on building wiring.
The job of an electrician is a regulated trade for safety reasons due to the many hazards of working with electricity, requiring testing, registration, or licensing. Licensing of electricians is controlled through government and/or professional societies.
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