Basic Electrical Circuits

Approved for 7 Hours – Renewal Training Credit (RTC)

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This seminar is for the maintenance person with no electrical experience. It is designed to give a day of hands-on training, building and testing the most common electrical circuits used in residential and industrial applications. It is also designed for maintenance personnel who are looking for some cross training in the electrical field. Theory and math are kept to a minimum, with emphasis placed on electrical safety, component usage, and the identification of circuit problems. The first part will cover standard residential circuits to allow the participant to get familiar with working around electrical circuits and taking standard measurements when testing an electrical circuit. The second part will cover standard industrial power and control circuits.

You will learn

  1. How to connect two-way, three-way, and four-way switches to control lamps and standard receptacles in a typical 120/240 V, single-phase, residential service.
  2. How to connect 120 V and 240 V single-phase motors typically used in residential circuits.
  3. How to use a voltmeter in testing and troubleshooting standard lamp circuits, receptacles, and motors.
  4. How to test fuses and circuit breakers in standard single-phase and three-phase panels and disconnect switches.
  5. How to check for proper circuit grounding, wire size, and fusing.
  6. How to connect and test a standard start/stop control circuit that is controlling a three-phase motor.
  7. How to use an electrical industrial print to help identify component usage, circuit operation, key troubleshooting points.
  8. How to look for potential problems and test for problems in electrical circuits that include several different components and different voltage types and levels.

Who will benefit

  • Maintenance personnel with no electrical experience
  • Personnel who need to be cross trained into the electrical field
  • Operators or supervisors who need an understanding of basic electrical operations


  1. Circuit Requirements
    • Load requirements
    • Power source requirements
    • High and low voltage
    • Circuit protection requirements
    • Safety requirements
  2. Residential Circuits
    • Lamp control
    • Two-way switches
    • Three-way and four-way switches
    • Multiple lamp control
    • Standard receptacles
    • GFCI and isolated ground receptacles
  3. Electrical Test Equipment
    • Measuring precautions
    • Meter abbreviations and symbols
    • Test lights
    • Continuity checkers
    • Voltage testers
    • Multimeters
    • Clamp-on ammeters
  4. Electric Motors
    • Single-phase motors
    • Three-phase motors
    • Motor wiring
    • Motor protection
    • Motor testing
  5. Motor Control Circuits
    • Parts of the motor power circuit
    • Parts of the motor control circuit
    • Start/stop pushbutton station controlling one motor
    • Multiple pushbutton station control
    • Reversing circuits
    • Speed control circuits
  6. Electrical Systems
    • Circuit inputs (manual, mechanical, and automatic switches)
    • Circuit outputs (motors, lamps, solenoids, and heaters)
    • Circuit interfaces (relays, contactors, starters, and transformers)
    • Circuit decisions (AND, OR, NOT logic, and timers)

In-House Training Available

For additional information about in-house training, please call Amy Murphy at (815) 280-1418 or email