It is quite unpleasant to encounter a problem when suddenly the outlet is out of order. There are two main types of malfunctions, but there are much more variations, as well as ways to eliminate them. Let's see why all the outlets or one of them stopped working. But first, familiarize yourself with the design of the outlet.

First you need to find out the device itself. First of all, you see the front panel fixed in a frame. They are bolted to the main part through one, less often through two screws. After removing the front part, we see the main part, which is fixed in the undergrowth with the help of two bursting legs, and they are each fixed with a screw. When you tighten the screws, the legs straighten and lock, and when you loosen, the legs lower and you can remove the outlet from the wall.If the single outlet you see in the center are two horizontally located holes for the plug, they lead to the conductive busbars. There may not be holes...

An electrical distribution panel is the heart of home wiring, so if you need to replace wiring in an apartment or house, one of the main issues is the choice of an electrical panel. In this article, we will consider the question of how to choose the right electrical panel for an apartment and a house. If we are talking about choosing an electrical panel for the apartment, then in this case, usually one panel is installed, which is installed in the hallway (corridor) of the apartment. In this case, the metering panel is usually installed on the floor, in the entrance.

The metering and distribution board on the floor can be shared by several apartments. It installs apartment metering devices, a group circuit breaker and circuit breakers individually for each apartment. The case of this shield is usually made of metal, on the front side there should be inserts of glass or transparent plastic to be able to remove ...

A voltage stabilizer is a device connected to a common electrical network and designed to maintain the output voltage within certain limits with significant fluctuations in the input voltage. When installed at the input of power supply to the apartment, this device, depending on the functionality, normalizes the parameters of the output current, and when deviations go beyond the set limits, it blocks the supply of power to all electrical equipment or individual devices.

Measurement of the voltage of the mains current at different periods of the day for a sufficiently long time will help to solve this problem. In accordance with the international requirements of IEC 60038: 2009, the values ​​should be in the range 220-240 V. In Russia, the range 198-253 V. is allowed. In most cases, the quality of power supply in multi-apartment buildings meets the standards. If, as a result of measurements, they were revealed ...

Microcontrollers are, first of all, devices for controlling, controlling and processing data, but not for working in power circuits. Although modern chips are quite developed in terms of the presence of various protections against accidental damage in the electrical part, nevertheless, there are dangers awaiting a beginner radio amateur at every step.

How to work safely with arduino? This is the main question of the article. Consider both electrical hazards for the microcontroller, and for the entire board and its components as a whole, as well as harmful factors of mechanical origin. You can write a book about the internal structure of microcontrollers, so we will consider only the main points that you need to pay attention to when working.Microcontrollers are sensitive to both currents and voltages. Emergency operating modes are permissible only for a short time, or are unacceptable in general ...

Experiments to find the answer to the question of whether electrons have an inert mass were carried out by scientists in the very beginning of the 20th century. These experiments helped the scientific community of that time to establish itself in accepting the fact that the electric current in metals is formed precisely by negatively charged particles - electrons, and not positively charged ions, as one might assume.

The first qualitative experiment, which illustrated that the charged particles forming the electric current in metals precisely possess mass, was carried out by scientists (then the Russian Empire) Leonid Isaakovich Mandelstam and Nikolai Dmitrievich Papaleksi, this took place in 1913. Three years later, in 1916, American physicists Richard Tolman and Thomas Stewart conducted a more accurate experiment, which in their work not only showed that the electron has a mass in a metal, but also measured it quite accurately ...

According to some analysts, in the coming years, a serious transport revolution awaits mankind: cars driven by people driving will be a thing of the past, and unmanned cars will fill the roads instead. Surprised?

There is nothing unusual here. After all, if you take a closer look, the first steps have been taken today: Tesla electric vehicles, for example, use a very efficient computer driver assistant that can keep the car in motion in its lane, at a speed suitable for the current traffic situation, and even able to readjust itself on command. And all this is ensured thanks to the joint work of several electronic components: ultrasound helps to recognize the presence of other cars on the road, neither rain nor fog are scary to the front radar, and a separate video camera carefully reads ...

The electric equipment of a car includes devices that generate, transmit and consume electricity, and are installed on this vehicle.

The electrical system of a car is a combination of devices, devices, circuits, wiring, which ensures the correct and reliable operation of the engine, transmission, chassis, and also contributes to the safety of the vehicle on the road, and allows you to automate some work processes, while creating comfortable conditions for both passengers, and for drivers, and even for other road users. On-board consumers of electricity are often supplied with constant voltage. The first electrified cars had an on-board network of 6 volts, the current cars have 12 volts on board, and heavy trucks and diesel buses ...

Agree, it’s nice to realize that the life of the LED lamp you are buying will be 5, or maybe more years. At least that's what it says on the packaging. In fact, many sellers of LED lamps and ribbons overestimate this figure simply to attract a buyer. After all, each of us somehow wants to take care of energy saving at home or at work, and for some it is always advisable to do this with minimal expense.

This is where a frugal consumer lies in wait for a tricky trap: the average LED lamp has about 7 times more light output compared to an incandescent lamp.And this benefit overlaps with any other, seemingly desirable, arguments. But in vain. In fact, there are some factors that it is advisable to pay attention to when choosing an LED lamp, and not to miss the cheapest ...