Paths · Exam prep

Master Electrician Exam Prep

The master exam assumes everything the journeyman exam tested and moves the center of gravity to design: load calculations from scratch, services and transformers, and heavier code navigation under the same clock. This path covers the delta.

12 steps

Goal credential: Master Electrician License

What changes at master level

  1. 1The Master Electrician License
  2. 2The Master Exam: What Changes From Journeyman

Transformers and fault current

  1. 3How Transformers Work
  2. 4Transformer Connections (Delta and Wye)
  3. 5Short-Circuit Current and AIC Ratings

Design calculations

  1. 6Commercial Load Calculations
  2. 7Service Sizing Calculations
  3. 8Transformer Calculations

Protecting what you sized

  1. 9Transformer Sizing and Protection
  2. 10Selective Coordination

Advanced grounding

  1. 11Separately Derived Systems

Exam day

  1. 12Where to Take the Master Exam