Free sample lessons

See exactly how the course teaches before you pay. Each sample is free to read, with no signup.

• TX Journeyman: Branch circuits: continuous loads and the 125% rule
• TX Master: Motor circuits: which current does which job
• Journeyman: Voltage drop: the calculation and the code status
• Master: Voltage drop: sizing feeders and branch circuits for it

Not affiliated with or endorsed by TDLR, PSI, Prov or NFPA. Exam names are used descriptively.