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electric switchboard
electric switchboard

Functions of an electric switchboard

An electrical switchboard is an element in an electrical system, which allows using a counter to monitor, feed and distribute electrical power supplied by generators, making it possible to control a machine or pieces of equipment by use of control circuits.
In addition to distributing the right amount of power to all electrical circuits in a house, a factory or any other place, it is designed to protect each individual circuit from overload and also a main switch which can manually suspend all power supply altogether.

All the electrical power of a factory or other place goes through a master switch located at the top of the electrical panel so that, in case of emergency, one can interrupt all electricity in one shot; it also acts as a protective factor against electrical overloads, going off when the preset amount of electricity supply is exceeded.

The electrical switchboards for buildings, are designed for both domestic and industrial use, having different characteristics in each case, but their purpose is the same. They can be placed externally (with special care so that they are adequately insulated against the weather) or internally, inside a niche in the wall or in the floor, if it is operating in an industrial environment.

To better understand what we're talking about, let’s mention an occurrence which could have happened to anyone at least once in their lives: all the electricity in the house interrupted by an excessive use of appliances, which means you have to go to a specific spot to turn on a switch. There it is, the main switch on the electrical panel in your home! Immediately around, you can see another smaller switch, which is secondary and is powered by the main switch in the electrical panel.

By removing the cover screws holding the panel, you can see the complete electric panel; there are two very large wires connected, these are the wires coming from the outside of the house.

In the center of the control panel, behind the switches, there are the electrical conductors, which work this way: there are two wires through which electricity comes in fed from the main switch when it is turned on; current goes through a wire connected to the switch and makes it possible for you to power a 120 or 240 volts circuit.

Precautions:
When working with electrical switchboards, you need to pay close attention: switching around fuses may be the cause of a fire.
Absolutely, never come close to it with wet hands and without proper precautions; especially do not approach it if you're not an expert, because in this point electricity flows in great abundance and a distraction could cause serious injury or even death.
If your main switch is disconnected due to an electrical overload, before turning it on, turn off each switch, appliance or machine before restarting the counter.

Do not remove the cover on an electrical panel, unless there are justified reasons such as the replacement of some part or the addition of a new circuit, which must be done by a qualified electrician.
Never remove the panel cover and leave it open and unattended.


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