Why does the light go out when there is an electrical problem? How protective devices work

Why does the light go out when there is an electrical problem? How protective devices work

The lifesaver: we all have it at home, but do we really know what it protects us from and how it works? In reality its technical name is differential switchand he is not the only one to defend us from the dangers of electricity. As we see in this video, in fact, they exist several protection switcheseach designed to stop a specific fault: overload, short circuit and earth leakage. These mechanisms can be integrated into a single device called a differential circuit breaker.

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To help you understand better, in the video you can see a electric mini-circuit which simulates what happens in our homes, showing how the different switches intervene to interrupt the flow of current and avoid fires, damage to household appliances or, in the worst cases, serious risks for people.

But protection does not only concern our homes: public places and industries are also equipped with switches that are capable not only of detecting faults but also of communicating with control rooms to manage energy and prevent blackouts.

This video is therefore a journey to discover an essential device, because it guarantees our safety every day.