Jan 27, 2022  
2020-2021 Course Catalog 
    
2020-2021 Course Catalog [ARCHIVED CATALOG]

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ELT 147 - NEC Residential

Credits: 3
Lecture Hours: 3
Lab Hours: 0
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech
The basic principles of the NEC for layout and construction for residential wiring systems. Apply code rules to house wiring installations. Discuss security systems, fire and smoke detectors, low-voltage and remote controls.
Competencies
  1. Understand basic safety rules for wiring electrical systems. How communication is conveyed on the job site. Discuss how to use the latest addition of the electrical code.
    1. Explain the importance of safety on the workplace.
  2. Understand outlets and review electrical symbols.
    1. Explain the electrical outlet symbols used in plans for residential applications.
    2. Discuss the types of outlets, boxes, fixtures, and switches used.
    3. Explain the methods of mounting various electrical devices.
    4. Understand how to position boxes, receptables, to the different types of wall surfaces.
    5. Explain the difference between “force” and “pressure”.
    6. Describe how to determine the number of wires permitted in different sized boxes.
    7. Focus on lighting branch circuits and small appliance branch circuits.
  3. Examine wiring methods. Define conductor sizes and types, wire connections, voltage drops and calculate neutral sizing for services.
    1. Define the terms associated with rating conductors, sizing wires, and flexible cords.
    2. Explain overcurrent protection for conductors and the loading effects on branch circuits.
    3. Explain aluminum conductors and possible fire hazards associated with them.
    4. Understand the code rules for all types of cables, and different raceways.
    5. Illustrate the sizing of neutrals.
    6. Define the markings of terminals of wiring devices and connectors.
    7. Study the ground fault circuit, arc fault circuit interrupters, and transient voltage surge suppressors.
  4. Differentiate lighting branch circuits for different rooms in the residence such as front bedroom, master bedroom, bathrooms, and hallway.
    1. Draw a cable layout and a wiring diagram based on information given on residence plans, the speculations, and code requirements.
    2. Explain the factors that influence the grouping of outlets into circuits.
    3. Estimate loads for the outlets of a circuit.
    4. Select the proper wall box for a particular installation.
    5. List requirements for installation of fixtures in clothes closets.
    6. Understand where arc fault circuit interrupters are required for bedrooms.
    7. Explain code requirements for installing ceiling fans.
    8. Estimate a connected load fro a room based on the number of fixtures and outlets included in the circuit supplying the room.
    9. Determine the connections for three way switches.
    10. Explain equipment grounding requirements for bathroom installations.
    11. Explain code requirements for receptacles in bathrooms installations.
    12. Explain code requirements for receptacles outlets in hallway installations.
    13. List fundamentals of proper lighting for bathrooms.
    14. Differentiate lighting branch circuits and small appliance circuits for kitchens.
    15. Explain the code requirements for small appliance circuits in kitchens.
    16. Discuss split circuit receptacles.
    17. Discuss multi-wire circuits.
    18. Differentiate lighting branch circuit for the living room.
  5. Dryer outlet and lighting circuit for laundry, bathrooms, rear entry hall, and attic.
    1. Understand code requirements for receptacles installed in bathrooms.
    2. Make the proper wiring and grounding connections for large appliances, based on type of wiring methods.
    3. Explain load calculations for electric dryers.
    4. Understand how to connect clothes dryers with cord and plug connections.
    5. Understand the code requirements for receptacle outlets in the laundry area.
    6. Discuss the code rules pertaining to wiring methods in attics.
    7. Explain circuits for waste disposer and dishwasher.
    8. Determine the maximum power demand of a dishwasher.
    9. Discuss the proper way to connect grounding to the appliances.
    10. Describe disconnecting means for kitchen appliances.
    11. Explain the operation and the switching sequence of the heat/vent/light.
    12. List the various methods of controlling exhaust fans.



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