Thunderstorm discharge is very dangerous, since its value can reach several hundred thousand volts. After each thunderstorm, the equipment fails, the power lines are damaged, and people can also be injured. It is impossible to determine where the lightning strikes, so it is a mistake to assume that this phenomenon will bypass your home. Lightning may never get into a particular section of the power grid and, accordingly, the danger of a thunderstorm can be underestimated. If lightning for several years has never hit a particular section of the power grid, this does not mean that such a possibility is excluded.

The occurrence of lightning overvoltage in the household electrical network in the absence of appropriate protection will lead to the failure of household electrical appliances that were included in the network at that time, and there is also a danger that residents of the house will suffer. Therefore, care must be taken to protect the wiring ...

For a long time you will not surprise anyone with a welding inverter. And there is nothing unusual in this, because it is much more convenient for any welder to operate with a compact and mobile device than with a heavy iron transformer. The subject of this article, however, will be precisely the modern welding inverters.

We will try to evaluate many advantages and some of the few disadvantages of welding inverters, consider their various options, and in the end we will compare the advantages and disadvantages so that even someone who is just thinking about purchasing a welding inverter can confidently come to a decision on its purchase. What is a welding inverter today? First of all, it is a compact semiconductor welding machine equipped with all types of shields and equipped with many options that facilitate the work of the welder, even if he is new to the profession ...

In bathrooms and other rooms with high humidity, lighting plays an important role in the interior, because it is thanks to it that the design is unique, since it is the light that emphasizes all its details. But when designing lighting systems in wet rooms, in addition to beauty, safety is also taken into account, because water procedures should not be accompanied by anxiety. For this reason, the fixtures here must be special, waterproof.

Today, in every store that sells lighting products, you can easily choose a moisture-resistant lamp. Such a lamp will come out somewhat more expensive than usual, however, you need to pay for safety anyway. But in return you will get confidence in the safety in your bathroom , and even if the family has small children, then you don’t have to worry...

In this review, we will talk about the Amperka educational kit produced by the Moscow Amperka LLC, which is a ready-made training course, the purpose of which is to teach beginners the application programming of microcontrollers and give the student the opportunity to realize their creative potential by creating their own electronic devices. The set will allow a beginner to learn to put into practice the laws of electricity, as well as to master the practical application of theoretical material in computer science. The set is ideal both for schools and for independent development of Arduino.

The Ampreka set includes three components: electronics, a training course and online materials.The kit contains all the necessary electronic components, more than 150 parts that are useful for successful completion of the course. It includes resistors, LEDs, transistors, motors, sensors, an LCD screen, a board ...

A broken ground wire in a three-phase electrical network is a dangerous phenomenon that can lead to various negative consequences for household electrical appliances, as well as for people who operate them. In this article, we will consider the consequences of a zero wire break with a specific example and the corresponding methods of protecting home wiring from a zero break.

As an example, consider an apartment building, powered by the most common TN-C-S grounding system. A system of this type provides grounding of the neutral of a power source - a substation transformer. From the substation to the consumer, in this case, the house, electricity is supplied through four conductors - three phase conductors and a conductor, which combines the functions of a working neutral and protective grounding conductor. After entering the building, the combined conductor is divided ...

This article will focus on stun guns. We will turn a little to history, then consider the technical side of the issue, and finally outline the factors that should be considered when choosing a stun gun for personal defense. On March 30, 1852, the German inventor Albert Sonnenburg received a patent for an electric whaling harpoon.

The device was intended for hunting whales, with the help of it the mammal was shocked by a dynamo generator on board the vessel to paralyze the whale and calmly catch it. For a hundred years, this was the only type of electric weapon - an electric harpoon for whaling, to which electricity was transmitted from a hand-held electric generator by wire directly from the side of the vessel. Nevertheless, the problem remained unresolved - the police of some countries fired too often during detention, and cases of unjustified killings ...

Owners of individual houses and cottages are increasingly beginning to understand that the use of electricity not only greatly facilitates the fulfillment of everyday household needs, but also poses certain risks to humans. In life, there is always the possibility of an emergency, which can lead to electrical injury.

The electrical safety of an individual building requires constant close attention from the owner. One of the issues of its maintenance is the operation of an individual ground loop, which must not only be created according to a certain methodology, but also correctly selected design, having performed a reliable calculation of all its elements. We’ll make a reservation right away that anyone who is familiar with the basics of electrical engineering can do it yourself. To do this, below is the methodology for its implementation. It is for guidance only ...

Back in 1836, the English physicist and inventor Michael Faraday created a special device for shielding equipment from electromagnetic radiation. This device is relevant to this day, and, as before, bears the name of a scientist. It's about the Faraday cage. This device is a protective cage made of highly conductive metal, and, as a rule, grounded. The principle of operation of this simple device is also quite simple.

When an external electric field acts on the cell, the free electrons of the metal of the cell come into motion, and the opposite sides of the structure are charged so that their field compensates for the external electric field.This can be verified by a simple experiment with two electroscopes and a Faraday cage charged from a high voltage source ...