Electricians perform installations of electrical wiring systems, fixtures, controls, and equipment in homes, commercial spaces, industrial facilities, and on vessels. Their services are also engaged for troubleshooting, as well as repair and maintenance of these components. Most Electricians are found in the Building Equipment Contractors industry but a good number of them are also working in the government. In fact, the government is among the top three industries that have the highest number of Electricians employed.

Electricians working in government offices and facilities are responsible for troubleshooting, modifying, repairing and maintaining existing electrical systems and equipment in addition to testing and installing new ones. Examples of these electrical systems and equipment that Electricians work on are circuit breakers, power supplies, electric regulators, distribution panels, switches and outlets of all types, light fixtures, lamps, heating devices, and temperature and pressure controls. Their services are also engaged for repairing appliances used in government offices and facilities like electric fans and air coolers, cable television systems, boiler controls and safety devices, industrial washers and dryers, lint collectors, ironers, ovens, kitchen hoods, and refrigerators. They work on the technical repairs and maintenance work of building elevators, security alarm system, fire alarm system, and radio and paging systems. Electricians also service alternative power sources for cases of power outages such as emergency power generators, automatic transfer switches, and fuel storage tanks.

Electricians possess a good understanding of electrical principles and their application. They are also knowledgeable about electrical materials and the related safety standards for electrical works. They are responsible for interpreting and applying state and local building regulations based on the National Electrical Code. Electricians have adequate knowledge in interpreting basic electronic terms and symbols since they often work from reading blueprints, building plans, engineering diagrams, technical schematics and manuals. They are also adept in using a variety of testing devices to identify electrical problems and troubleshoot issues.

Electricians work both indoors and outdoors. The work environment may expose them to dirt, dust, grease, debris, fumes,as well as noise from industrial machinery and equipment. They may be exposed to long periods of heat, humidity, and cold temperatures. Their job might also require them to work at great heights, exert physical strength as in pushing, pulling, lifting, and carrying objects of varying sizes and shapes, in addition to physical efforts such as walking, climbing, bending, crawling, crouching or stooping for extended periods, and working in confined spaces. Due to the nature of their job, Electricians make use of protective clothing, devices and equipment at all times and maintain good physical condition to be able to perform their work.

The average annual salary for Electricians in 2021, according to the US Bureau of Labor Statistics, was $73,840. Employment in this occupation is expected to grow at 9% from 2020 to 2030. The growing demand for this occupation stems from innovations in power generation, such as solar and wind power. Electricians will be needed for the installation of these energy-producing stations, as well as connecting these energy sources to power grids for distribution.