The electricity doesn’t touch. A very nice saying, which is much more often used by non-electricians than by electricians themselves. Although we most often pronounce this sentence in a humorous form, it is very serious and its meaning does not come from nowhere. Tell me, how is it that such a typical will not be hit by electricity, digging into cables so many times, even under voltage and nothing?! That a saying works like a spell, or is every electrician lucky? No! Every electrician knows how to deal with electricity.
Unfortunately, nowadays, more and more pseudo-electricians are taking on the task of making and repairing electrical installations. Even an ordinary tiler will not only put tiles in your bathroom, but will also carry a socket or a lighting point.
In what quality will it do this and according to the art? I can tell you that it’s almost always a tidy job. There is no way we can protect ourselves from such specialists, but maybe they will come across this text. At least their awareness of the threat will increase. Electricity in most conditions is a deadly phenomenon and although it serves us, it should be handled with the utmost respect and humility.
Knowledge about electricity
This is not about knowledge of calculations and formulas. It is about the awareness that electrical robots are classified as work in conditions of particular danger to human health and life. It is about many issues, principles and phenomena related to electricity, which everyone who wants to do electrical works should assimilate. Now you will probably ask where to acquire such knowledge.
However, in order to obtain a protocol approval of the electrical installation, another level is required. Even if we get this document, we shouldn’t feel any more secure. On the contrary! We should get more humility to electricity.
As well as being dangerous to humans, electrical installations also cause many fires. In most cases, however, this is due to a faulty electrical installation. However, returning to human protection, it all comes down to protection against electric shock.
First, the electrician will disconnect the power supply circuit in the switchboard by switching off the overcurrent circuit breaker. In older installations he would simply unscrew the fuse protecting the lighting circuit. Now there should be no voltage on the wires connected to the chandelier. We can even snap the light switch on the wall, and the light shouldn’t “go on” anyway. Checks with a special electric test tube whether there is voltage on the connection block. The tube is not lit – no voltage.
Caution, foresight and humility at every turn. Although we will even check on the wiring diagram which protection will disconnect the electrical circuit. Although we will disconnect this circuit and theoretically there should be no voltage in this part of the electrical system, we should still make sure that there is actually no voltage there.
The point is that sometimes the measuring device will be damaged and its indications will not be reliable. It is therefore good practice to carry out a test measurement in a place where we are sure that there is an electrical voltage before checking the target work site.