NEC Coding
8-Module course for apprentices & journeymen — Canada-based learners, U.S. NEC focus
Overview of NEC (NFPA 70), scope, enforcement, and structure. Codebook navigation skills.
Definitions, installation requirements, voltage limitations, and reading NEC language.
Branch circuits, feeders, overcurrent protection, grounding & bonding.
Raceways (EMT, RMC, FMC, PVC) and cables (NM, MC, AC), with Canadian equivalents.
Panelboards, luminaires, appliances, and flexible cords/cables—selection and installation.
Hazardous locations, health care spaces, pools/spas, and PV systems—special rules & tables.
Article 800 low-voltage requirements and structured cabling rules for buildings.
Load calcs, conductor ampacity, and voltage drop—then apply it all in a final project.
The National Electrical Code, U.S. electrical installation standard published by NFPA.
Canadian Electrical Code, Canada’s national electrical installation standard.
Authority Having Jurisdiction — the local official/agency that enforces code compliance.
NEC is organized into Chapters (1–9) and Articles within chapters; rules live in sections.
Portion of wiring between the final overcurrent device and outlets or equipment.
Conductors between the service equipment (or source) and branch-circuit overcurrent devices.
Overcurrent Protective Device (e.g., circuit breaker or fuse) that protects conductors/equipment.
Grounding connects to earth; bonding connects conductive parts to maintain equal potential.
Maximum current a conductor can carry continuously without exceeding its temperature rating.
Adjustment to ampacity for conditions like ambient temperature or conductor bundling.
Reduction in voltage along a conductor due to resistance; managed by sizing and length.
Enclosed channel (e.g., EMT, RMC, PVC) that holds and protects conductors/cables.
Wire or bus intended to carry current (e.g., copper/aluminum, sized by AWG or kcmil).
Arc-Fault Circuit Interrupter; mitigates arcing faults that could cause fires.
Ground-Fault Circuit Interrupter; protects people from shock by detecting leakage current.
Communications systems rules; largely independent of Chapters 1–7 unless referenced.
Informational aids (Chapter 9 tables, Annexes) that support calculations and selections.
Photovoltaic (solar) systems subject to special NEC rules (e.g., Article 690).
Health care space requiring special wiring/bonding for safety (Article 517).
Hazardous location classification systems determining wiring methods and equipment.
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