Electrical Grounding For Dummies

This acceptance of a one way flow is called polarity on most cars the negative battery terminal is earthed and the positive one feeds the electrical system.

Electrical grounding for dummies. It provides an alternate pathway for electrical current to follow should there be a breakdown in the system of hot and neutral wires that normally carry the current. Certain types of circuits particularly the circuits commonly used in computers label the negative terminal of a dc power supply the common ground and connect the positive terminal of another dc power supply to the same point. For example a very simple electrical circuit consists of three elements. Single point grounding 4 dummies.

A battery a lamp and an electrical wire that connects the two. Electricity flows from a battery in one direction only and some components work only if the flow through them is in the correct direction. Common ground or simply common isn t a physical ground. Circuits can get much more complex consisting of dozens hundreds or even thousands or millions of separate components all connected with conductors in precisely orchestrated ways so that each component can do its bit to contribute to the overall purpose.

Your metal radio case is connected to the radio system ground rod and your metal rotor control box is connected to the electrical system ground via it s power cord. The connection made with the earth is vital for it uses the ground as a conductor. A fundamental aspect of electrical engineering electrical grounding is the manner in which an electrical circuit is attached to the earth or the ground. Rather it s just a reference point in a circuit for voltage measurements.

This is called a negative earth system and when buying an electrical accessory a radio for.