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Course Description Introduces commercial wiring practices and procedures. Topics include: National Electrical Code, commercial load calculations, and safety. | Competency Areas | Hours | | National Electrical Code | Class | 4 | | Commercial Load Calculations | D. Lab | 0 | | Safety | P. Lab/O.B.I. | 3 | | | Credit | 5 |
| Prerequisite: | ELT 106, ELT 121, IFC 100 | | Corequisite: | None | Course Guide | Competency | After completing this section, the student will: | | National Electrical Code | | Commercial application | Determine commercial application of the NEC. | | NEC requirements | Determine ampacities for conductors.
Calculate conduit fills.
Apply grounding techniques according to the NEC.
Determine conductors for uses in special-purpose situations (motors, etc.).
Determine conduit requirements for special-purpose use.
Determine overload protection for commercial applications.
Determine disconnecting requirements for single-family dwellings. | | Commercial Load Calculations | | Conductor size | Calculate conductor size for entrance requirements. | | Service panels | Calculate the service panels. | | Ampacity | Determine ampacity for service and feeder circuits. | | Harmonics | Define harmonics.
Discuss how harmonics affect electrical systems and appliances. | | Safety | | OSHA requirements | Determine OSHA requirements for commercial installations. | | Hazards | Identify hazards in the workplace. | | Occupational procedures | Develop safe occupational procedures. | | First aid | Recognize situations that require first aid or CPR. | | Emergency plan | Emergency plan | | Safety practices | Identify safe practices for working with hand and power tools.
Identify safe practices for working with hoisting or lifting equipment. |
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