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Leave a comment. Switchgear refers to electrical tool that regulates the flow of electricity within an electrical system. It is used by utility providers and hidden facilities alike for two reasons: to prevent overloads and short circuits, and to de-energize circuits for testing and maintenance.
A switch is a component which controls the open-ness or closed-ness of an electric circuit. They allow control over current flow in a circuit (without having to actually get in there and manually cut or splice the wires).Switches are critical components in any circuit which requires user interaction or control. circuit diagram with an LED, resistor, and a switch. When the switch is closed, current flows and the LED can illuminate. Otherwise no current flows, and the LED receives no power. There are tons and tons of switches out there: toggle, rotary, DIP, push-button, rocker, membrane, â¦ the list just goes on and on.