When you have multiple circuits connected to a site, the entire collection is often referred to as a distribution system.

Here's a breakdown of why:

* Circuit: A single path for electrical current to flow, typically from a power source to a load.

* Distribution System: A network of interconnected circuits that deliver power to various loads throughout a site.

Think of it like plumbing:

* Circuit: A single pipe carrying water to a faucet.

* Distribution System: The entire network of pipes, valves, and pumps that deliver water throughout a building.

Let me know if you have other questions!