General Grounding

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Joined: Thu Jan 11, 2018 3:03 pm

General Grounding

Postby om_tech_support_KR » Thu Mar 29, 2018 1:03 pm


A Circuit is Defined as: “A closed path through which an electric current flows or may flow. ◇ Circuits in which a power source is connected to two or more components (such as light bulbs, or logic gates in a computer circuit), one after the other, are called series circuits.
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If the circuit is broken, none of the components receives a current. Circuits in which a power source is directly connected to two or more components are called parallel circuits.
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If a break occurs in the circuit, only the component along whose path the break occurs stops receiving a current.
Essentially a circuit is a loop.”


In a circuit there is a positive and negative (neutral) terminal. People usually refer to the negative terminal as the ground, but this would just be the return path for the circuit➀. The ground, or earth ground, would be different➁. The earth ground is needed for safety so if there is any current that cannot complete the circuit it has somewhere to go and doesn’t stay in the circuit. For example on a light bulb if there was a buildup of charge because of bad wiring and no way for the circuit to complete you would get a shock if you touched it if not grounded. In this case you would become the ground. In homes the third prong on the electrical outlets is the earth ground. To keep someone from being shocked, the third prong is connected to a conductive pipe, or rod, that is buried under the house, it is also called a lightning rod. This is where all the current goes that is not safely contained in the circuit. This is why it is important to have our drivers and motors grounded; to have a path for excess current to travel and prevent damage to them.

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