Electrical contractors employ workers in many capacities, determined by their level of training and experience.
Some common jobs include: Apprentice Electrician ? Receives on-the-job training and classroom instruction from licensed journeymen or master electricians about how to install, modify, repair, and maintain power and lighting systems.Most apprentice programs last 3 to 5 years and apprentices earn wages during this training period. Journeyman Electrician ? Installs, modifies, repairs, and maintains power and lighting systems.
This estimate is often submitted as a bid on a project and serves as a scheduling and budget guideline as the project proceeds. Project Supervisor ? Oversees workforce to encourage safe and high-quality installations.Monitors progress to meet project deadlines. Submits required reports and forms.Źródło: https://en.wikipedia.org/wiki/Electrical_contractor
In addition to the workplace hazards generally faced by industrial workers, electricians are also particularly exposed to injury by electricity.
An electrician may experience electric shock due to direct contact with energized circuit conductors or due to stray voltage caused by faults in a system.An electric arc exposes eyes and skin to hazardous amounts of heat and light. Faulty switchgear may cause an arc flash incident with a resultant blast. Electricians are trained to work safely and take many measures to minimize the danger of injury.
Lockout and tagout procedures are used to make sure that circuits are proven to be de-energized before work is done.Limits of approach to energized equipment protect against arc flash exposure; specially designed flash-resistant clothing provides additional protection; grounding (earthing) clamps and chains are used on line conductors to provide a visible assurance that a conductor is de-energized.
Personal protective equipment provides electrical insulation as well as protection from mechanical impact; gloves have insulating rubber liners, and work boots and hard hats are specially rated to provide protection from shock.If a system cannot be de-energized, insulated tools are used; even high-voltage transmission lines can be repaired while energized, when necessary. Electrical workers, which includes electricians, accounted for 34% of total electrocutions of construction trades workers in the United States between 1992?2003.Źródło: https://en.wikipedia.org/wiki/Electrician.