Intro to TTCN

Video Lessons & Walkthroughs

Into to AP Tech

Test Taking & Code Navigation Skills

Article 220- Branch Circuit, Feeder, & Service Load Calculations

Intro (1:31)
Step 1: General Lighting Load (10:50)
Step 1: Practice Problems (4:40)
Step 2: Electric Clothes Dryers (5:47)
Step 1 & 2 Combined Practice Problem (5:00)
Step 3: Electric Cooking Appliances (Column A) (7:19)
Step 3: Column B (5:09)
Step 3: Column A & B Combined Practice Problems (9:48)
Step 3: Column C (Note 1) (11:19)
Step 3: Column C (Note 2) (9:29)
Step 1, 2, & 3 Combined Practice Problems (15:18)
Steps 4-6 (14:49)
Full Service Load Calculation Practice Problems- Set #1

Article 250- Grounding & Bonding

Wiring Methods & Materials: The 300's

Article 430- Motors, Motor Circuits & Controllers

Intro (1:45)
General & Conductor Sizing (11:50)
Conductor Sizing Practice Problems (11:24)
Sizing Overload Protection (9:41)
Sizing Branch Circuit OCPD (16:52)
Sizing Feeder OCPD (12:27)
Motor Practice Problems- Set #1