Master Electrician NEC Theory
2 states · 33 open-book study guides (NEC 2026) — every explanation cites the exact NEC article or table
Free full-length open-book NEC theory for Master Electrician exams across the United States — Texas Master Electrician, Colorado: the NEC Knowledge portion and the Calculations portion where applicable. Every chapter is written for the open-book format and cites the exact article or table — learn how to navigate the code, find the section, and apply the requirement the way each state's exam expects.
Texas Master Electrician
Texas Master Electrician licensing guideCalculations
1Calculations and Theory2Electrical Services, Service Equipment, and Separately Derived Systems3Electrical Feeders4Branch Circuit Calculations and Conductors5Electrical Wiring Methods and Electrical Materials6Electrical Equipment and Devices7Motors and Generators8Electrical Control Devices and Disconnecting Means9Special Occupancies, Equipment, and Conditions10Renewable Energy Technologies
NEC Knowledge
1Definitions, Theory, and Plans2Electrical Services, Service Equipment, and Separately Derived Systems3Electrical Feeders4Branch Circuit Conductors5Electrical Wiring Methods and Electrical Materials6Electrical Equipment and Devices7Motors and Generators8Electrical Control Devices and Disconnecting Means9Special Occupancies, Equipment, and Conditions10Renewable Energy Technologies
Colorado
Colorado licensing guideReady to test what you just read?
Practice with official-blueprint exam simulations, code-cited explanations and the AI tutor — free first chapter of every exam.