The National Electrical Code is written for people who already know a lot about electricity. You must first be familiar with fundamental electrical concepts like voltage, amperage, resistance, Ohm's law, wattage, and circuit theory before you can comprehend the Code
Design of circuits.
Analyze and apply linear systems theory.
Create wiring diagrams.
Analysis and collection of data
Configure and build computer systems.
Make plans for the operation.
Maintaining electronic equipment.
Control construction activities and upkeep of equipment