ELEC-151 Sizing of Commercial/Industrial Electrical Systems

Credits 3 / 3 Contact Hours
Prerequisite: Placement into RDNG-016 (ACSR-016). Prerequisite: ELEC-131 and ELEC-133
This course is designed as a follow-up to the National Electric Code class. In this class students will learn to calculate and size the entire electrical system and how to choose the correct conductor size and type for various installations. They will also be able to calculate conduit size and type for installations requiring the use of conduit. In addition students will size electrical equipment and choose types of equipment for different applications such as motor starter fuses heaters and disconnects. Correct size grounding and bonding conductors and methods will also be reviewed.

Course Outcomes
1. Review of wire types and wire/cable definitions 2. Review of wire sizing and ampacity 3. Determine wire requirements for various installations 4. Examine insulation types and properties 5. Review of conduit types 6. Determine conduit requirements for various installations 7. Calculate conduit sizing based on numbers and sizes of conductors 8. Review definitions of grounding and bounding 9. Compute properly sized grounding and bonding wires for branch circuits, feeder circuits, and service conductors 10. Review and classify box types and applications including device, junction and pull boxes 11. Calculate proper box sizing 12. Define NEMA ratings 13. Identify NEMA ratings required for an application 14. 14. Review overcurrent protection and disconnect requirements 15. Calculate sizing for overcurrent protection and disconnects (breakers, fuses, disconnects, overloads, and service) 16. Review Fire Safety System design requirements and incorporate into design 17. Design a complete single device electrical circuit, starting with the circuit device and ending with the load. Size entire electrical system (circuit device, conduit, wire. junction boxes, and overloads) 18. Design a feeder circuit from start to finish that consists of 3 motor loads following proper sizing requirements 19. Design a complete electrical system from main service equipment through all electrical systems for a commercial application 20. Create a material list based on the system requirements 21. Design a complete electrical system from main service equipment through all electrical systems for a dwelling unit or condominium unit 22. Design a complete electrical system, including sizing of electrical service, for a dwelling unit or condominium unit.