Credentials · License family
Master Electrician License
The top individual electrical license: design, permits and supervision. Usually requires years as a journeyman plus a harder exam.
Read the full guide: The Journeyman Electrician License →
Lessons that prepare you
- Ampacity
- Conductor Sizing
- Voltage Drop Calculations
- Derating and Adjustment Factors
- Box Fill Calculations
- Conduit Fill Calculations
- Branch Circuit Calculations
- Demand Factors
- Residential Load Calculations
- Commercial Load Calculations
- Service Sizing Calculations
- Motor Current Calculations
- Motor OCPD and Conductor Sizing
- Transformer Calculations
- Conductor Types and Insulation
- NM Cable
- MC and AC Cable
- Service-Entrance Cable
- EMT
- Rigid Metal Conduit and IMC
- PVC Conduit
- Flexible Raceways
- Raceway Supports and Securing
- Pull and Junction Box Sizing
- Boxes and Enclosures
- Receptacles
- Switches and Switching Circuits
- Terminations and Splices
- GFCI Protection
- AFCI Protection
- Grounding vs Bonding
- What Earth Ground Actually Does
- The Effective Fault-Current Path
- System Grounding
- Equipment Grounding
- The Grounding Electrode System
- Grounding Electrode Conductor Sizing
- Main Bonding Jumper
- Equipment Grounding Conductors
- Bonding at Service Equipment
- Separately Derived Systems
- How the NEC Is Organized
- NEC Definitions That Decide Answers
- Reading NEC Tables
- Finding Code Answers Fast
- Navigating the Ampacity Tables
- Code Cycles and State Adoption
- The Journeyman Exam: What It Tests and How
- Journeyman Requirements by State
- Texas Journeyman Electrician License
- The Master Electrician License
- The Master Exam: What Changes From Journeyman
- The Electrical Contractor License
- NASCLA-Accredited Electrical Exams
- Where to Take the Master Exam