National Electrical Code I
Using the National Electrical Code (NFPA 70): structure, branch circuits, overcurrent protection, wiring methods, devices, grounding, special locations and low-voltage systems.
ELEC-120 12 lessons · 5 h 52 min
Offered by HSM University · Electrician
This is the American version of this course. See the Canadian version.
What you'll learn
- Explain how the National Electrical Code is published, adopted and enforced, and navigate its chapters, articles, tables and annexes
- Apply code definitions and general rules for approval, workmanship, connections, conductor identification, locations, enclosures and working space
- Distinguish services, feeders and branch circuits, and apply branch-circuit ratings, required circuits, multi-wire circuit rules and conductor protection
- Size conductors and overcurrent devices using ampacity tables, continuous-load rules, terminal ratings, correction and adjustment factors, and voltage drop
- Select overcurrent devices by current, voltage and interrupting rating, and apply rules for standard sizes, coordination, location and feeder taps
- Select and install wiring methods, and calculate conduit fill, bends between pull points and box fill
- Install switches, receptacles and luminaires correctly, including multi-location switching, polarity, tamper-resistant and ground-fault protected devices
- Apply rules for disconnecting means, panelboards, enclosures, working space and circuit directories
- Explain and apply grounding and bonding requirements, including the fault current path, electrodes, conductor sizing and separately derived systems
- Choose equipment and wiring methods for damp, wet and corrosive locations, and apply the limits on flexible cords and temporary wiring
- Install Class 2, communications, Power over Ethernet and fire alarm circuits with proper separation, cable ratings and supervision
- Plan a complete installation through permit, rough-in, testing and final inspection, checking every decision against the code
Course content
12 lessons · 5 h 52 min total · final exam
- 1 How the code is organized and adopted 26 min · quiz
- 2 Definitions and general rules 29 min · quiz
- 3 Branch circuits 29 min · quiz
- 4 Conductor sizing and ampacity 30 min · quiz
- 5 Overcurrent protection 27 min · quiz
- 6 Wiring methods 28 min · quiz
- 7 Switches, receptacles and luminaires 33 min · quiz
- 8 Disconnecting means, panelboards and enclosures 29 min · quiz
- 9 Grounding and bonding 28 min · quiz
- 10 Damp, wet and corrosive locations, cords and temporary wiring 31 min · quiz
- 11 Class 2, communications and fire alarm circuits 29 min · quiz
- 12 Applying the code: permits, inspections and a worked installation 33 min · quiz
- E Final exam 20 questions
Requirements
Recommended background. You can start any course at any time.
Description
Using the National Electrical Code (NFPA 70): structure, branch circuits, overcurrent protection, wiring methods, devices, grounding, special locations and low-voltage systems.