Jan 27, 2022
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.
- 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.
- Explain the importance of safety on the workplace.
- Understand outlets and review electrical symbols.
- Explain the electrical outlet symbols used in plans for residential applications.
- Discuss the types of outlets, boxes, fixtures, and switches used.
- Explain the methods of mounting various electrical devices.
- Understand how to position boxes, receptables, to the different types of wall surfaces.
- Explain the difference between “force” and “pressure”.
- Describe how to determine the number of wires permitted in different sized boxes.
- Focus on lighting branch circuits and small appliance branch circuits.
- Examine wiring methods. Define conductor sizes and types, wire connections, voltage drops and calculate neutral sizing for services.
- Define the terms associated with rating conductors, sizing wires, and flexible cords.
- Explain overcurrent protection for conductors and the loading effects on branch circuits.
- Explain aluminum conductors and possible fire hazards associated with them.
- Understand the code rules for all types of cables, and different raceways.
- Illustrate the sizing of neutrals.
- Define the markings of terminals of wiring devices and connectors.
- Study the ground fault circuit, arc fault circuit interrupters, and transient voltage surge suppressors.
- Differentiate lighting branch circuits for different rooms in the residence such as front bedroom, master bedroom, bathrooms, and hallway.
- Draw a cable layout and a wiring diagram based on information given on residence plans, the speculations, and code requirements.
- Explain the factors that influence the grouping of outlets into circuits.
- Estimate loads for the outlets of a circuit.
- Select the proper wall box for a particular installation.
- List requirements for installation of fixtures in clothes closets.
- Understand where arc fault circuit interrupters are required for bedrooms.
- Explain code requirements for installing ceiling fans.
- Estimate a connected load fro a room based on the number of fixtures and outlets included in the circuit supplying the room.
- Determine the connections for three way switches.
- Explain equipment grounding requirements for bathroom installations.
- Explain code requirements for receptacles in bathrooms installations.
- Explain code requirements for receptacles outlets in hallway installations.
- List fundamentals of proper lighting for bathrooms.
- Differentiate lighting branch circuits and small appliance circuits for kitchens.
- Explain the code requirements for small appliance circuits in kitchens.
- Discuss split circuit receptacles.
- Discuss multi-wire circuits.
- Differentiate lighting branch circuit for the living room.
- Dryer outlet and lighting circuit for laundry, bathrooms, rear entry hall, and attic.
- Understand code requirements for receptacles installed in bathrooms.
- Make the proper wiring and grounding connections for large appliances, based on type of wiring methods.
- Explain load calculations for electric dryers.
- Understand how to connect clothes dryers with cord and plug connections.
- Understand the code requirements for receptacle outlets in the laundry area.
- Discuss the code rules pertaining to wiring methods in attics.
- Explain circuits for waste disposer and dishwasher.
- Determine the maximum power demand of a dishwasher.
- Discuss the proper way to connect grounding to the appliances.
- Describe disconnecting means for kitchen appliances.
- Explain the operation and the switching sequence of the heat/vent/light.
- List the various methods of controlling exhaust fans.
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