There are times in electricity when it becomes dangerous for property, human life and health, because electricity in an unusual form begins to destroy everything. This happens, as a rule, with a short circuit, when a co -crazy current goes along the wire. For comparison, in a conventional outlet, a voltage of 220 volts, with a short circuit, this voltage increases to several thousand volts. For a person, the deadly dose of electric current is one hundredth of amperes, and during a short circuit there is an electric one in several thousand or even tens of thousands of amperes on the wire.
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That is why it is necessary to carefully treat the wiring, fearing a short circuit. A short circuit arises when two wires are suction, at this moment the electric current increases tens of times. But the electrical wiring is destroyed not due to the fact that electric current increases ten times, but due to the fact that the temperature begins to increase to cosmic numbers, it increases a hundred times.
And this, in turn, leads to heating, and later the melting and destruction of the wire. In order to protect yourself from destruction, you need to install a special device that, at the time of a short circuit, turns off the electricity.