The common electrical terms line and load have very basic meanings, and often describe a wire's position relative to the device it's connected to.
Orro: The Home Lighting System
electrical - Which wire is line vs load wires - Home Improvement
What's The Difference Between Line and Load
Delivery to consumers - U.S. Energy Information Administration (EIA)
Single-line diagram - Wikipedia
Power Line Safety - International Sign Association
Types of Electrical Wires and Cables - The Home Depot
Line vs. Load Wiring: What's the Difference?
4-Way Z-Wave Switch Installation (No Neutral & line/load to light
Solved An electric utility company supplies a customer's
Ethernet Cables, How They Work and How to Choose the Right One
What are Load Cells and How Do They Work?
What is the difference between switch disconnector and circuit
What is an electrical load?
What is the Difference Between Series and Parallel Circuits