Hobbies And Interests
Functions
The main function of the ground bar is to discharge static electric charges that shape up on the cases and protective covers of various electronic appliances and devices. Static charges can easily create high voltages of electricity, reaching up to 10,000 volts. A neutral bar, on the other hand, serves as a return path for the charge originating from the supply source, such as the battery's negative terminal.
Connections
The neutral bar serves as a connection point for all the neutral cables of distinct circuits, like lighting and socket outlets. A ground bar is the bar that connects all the earth or ground from different circuits to the main panel's earth terminal, which is also known as consumer's earth electrode.
Insulation Wire
The ground wire is identified by either green insulation or by being a bare metal without insulation. This wire connects to the ground bar of the modern 220 circuits. A white insulated neutral wire serves as an identifying wire for the neutral bar, or to the combined neutral/ground bar in some 220 circuits.
Supported Appliances
Some appliances only carry 110-volt internal circuits, such as timers and electronic displays, which can be charged by a neutral connection to comply with current electric codes. When these 4 wire appliances are attached to Legacy 3 wire systems, they use ground conductor for neutral charge. Other appliances, however, such as water heaters do not need a neutral conductor because the current both acts as a feeder and receiver of electricity. Interestingly, the ground wire is essentially used as a safety feature in any circuit, and it never holds any electric charge under normal conditions.