Journeyman Electrician Study Guide
Prepare for your Journeyman Electrician license exam with our comprehensive technical curriculum. Master Ohm’s Law, voltage drop calculations, Table 310.16 ampacities, motor short-circuit protection, transformer sizing, and Article 250 grounding and bonding rules.
Complete Journeyman Electrician Curriculum
Browse all 7 interactive lessons across 5 curriculum chapters. Every lesson includes verified blueprint takeaways, common examination traps, and interactive practice checkpoints:
General Electrical Theory, Mathematics & Code Standards
Master Ohm's law, power formulas, voltage drop calculations, NEC Article 90/100 definitions, and box fill volume requirements under Article 314.
Branch Circuits, Feeders, Grounding & Overcurrent Protection
Navigate GFCI/AFCI requirements, feeder load calculations, grounding electrode conductors (Table 250.66), and equipment grounding conductors (Table 250.122).
Wiring Methods, Raceways, Boxes & Ampacity Derating
Understand conductor ampacity Table 310.16, temperature correction, bundling adjustment Table 310.15, and raceway fill rules in Chapter 9.
Motors, Transformers, HVAC & General Equipment
Size motor branch circuit conductors (125% FLC), short-circuit protection (Table 430.52), motor overloads (430.32), and transformer primary/secondary protection.
Special Occupancies, Hazardous Locations & Emergency Systems
Understand Class I, II, III hazardous location divisions and zones, explosionproof conduit seal requirements (Art. 501.15), and emergency power systems (Art. 700).
Interactive Study Tools & Resources
Reinforce what you learn in the guide with our suite of free interactive Journeyman Electrician tools:
80-Question Mock Exam
80 code-based calculation questions simulating state electrical board licensing exams with instant feedback.
Launch Practice Exam →NEC Cram Cheat Sheet
Quick tables for conductor ampacities, conduit fill factors, box sizing calculations, and motor overload multipliers.
View Cheat Sheet →6-Week Study Plan
Day-by-day technical study schedule for navigating the NEC quickly during timed open-book exams.
View Study Plan →