Inside Electricians install conduit, electrical wiring, fixtures and electrical apparatus inside commercial buildings and in a multitude of industrial settings. Major duties for an Inside Electrician include:

  • Planning and initiating projects
  • Establishing temporary power during construction
  • Establish grounding systems
  • Installing electrical service to buildings and other structures
  • Establishing power distribution within a project
  • Planning and installing raceway systems
  • Installing new wiring and repairing old wiring
  • Providing power and controls to motors, HVAC, and other equipment
  • Installing receptacles, lighting systems, and fixtures
  • Troubleshooting and repairing electrical systems
  • Installing and repairing traffic signals, outdoor lighting and outdoor power feeders
  • Installing fire alarm systems

In performing these duties, Inside Electricians must use many different kinds of tools, ranging from simple one and two-hand tools (such as wire cutters, screwdrivers, and cable-cutters) to power-assisted tools like electric drills and cable pullers. They occasionally operate heavy equipment such as trenchers and aerial lifts.

Over the course of the five-year Inside Electrician apprenticeship program, apprentices must acquire a wealth of technical knowledge. A recent job analysis identified 83 specific pieces of knowledge that are important for successful job performance. A few of the most important ones are knowledge of:

  • The National Electrical Code
  • How to work with energized circuits
  • Blueprints, including symbols used
  • Electrical schematic diagrams
  • State and local electrical codes
  • First Aid
  • OSHA 10
  • Hazardous materials
  • Specific job safety rules

Some of the most important skills to be learned are:

  • Skill at performing CPR
  • Skill at reading a wire table to determine conductor size required
  • Skill at terminating aluminum or copper cable
  • Skill at terminating high voltage cable
  • Skill at splicing high voltage cable

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