When engaging in electrical work in an apartment or house, you should not forget to buy cable fasteners - special electrical installation products for mounting on brick or concrete walls and cable ceilings without protective boxes (cable ducts) and pipes (plastic corrugations or metal hoses).

The right choice of fasteners is no less important than choosing the cable or wire itself. Modern fasteners are a guarantee of high-quality and reliable fastening!

The most common type of cable fastener for quickly securing wires and cables is an electrical mounting bracket. It is a plastic strip in the form of the letter "p" or curved in an arc, round or flat, depending on the shape of the conductor, which it will hold. The kit includes a nail or a screw. The most popular in everyday life were electrical mounting brackets ...

Analysis of possible ways and devices of New Year's light decoration of buildings and structures, indicating approximate prices for materials and work.

Why is this needed? Currently, with high competition in the market of goods and services, the decoration of their facilities and retail space is becoming a must. Such actions carry not only aesthetic meaning, but lead to a competitive advantage, because competently designed trading equipment serves the purpose of further promoting your brand. You are one step ahead and the client flies like a butterfly on a light.

If you walk along the evening streets, then in 70% of cases this decoration consists of neon that is already boring to everyone, halogen lights and illuminated windows or signboards outside or inside. Someone will say that this is a classic, and it will always be popular. Yes, it is, but any new products in 10 years will also become classics, and the novelty element adds the necessary “zest” to any standard solution ...

Being an electrician, one often encounters the fact that people who are completely healthy and developed both physically and mentally experience a state of awe of electricity. At the same time, say, the installation of water supply and sewage does not seem very complicated to them.

Still: water runs to itself through pipes under pressure, and through pipes of larger diameter it is diverted to the sewer - everything is “easier than a steamed turnip”. It’s just a pity for those people who anxiously look at the outlet that sparks out and are waiting for an electrician to replace it.

And since for many people who are afraid of electricity, the plumbing seems to be arranged more simply, then we will give some physical analogies between the electric current and the flow of water. In what direction does the water run? From a point with more pressure - to a point with less. Between points with the same pressure on the pipe wall, there will be no water flow ...

At the request of the readers of the site I’ll do a short review of the new disk of Mikhail Vanyushin "Into the world of electricity - as for the first time! -2".

Actually, you can see the full list of issues that are discussed in the training course on the selling site itself. In this article I will pay more attention to the forms of information that the author uses in his course.

Many people mistakenly think that only videos are recorded on the disc. In fact, the instructional video is just a few elements of the course. The main part of it is a very high-quality and well-illustrated textbook on electrical engineering and the basics of electronics in electronic format. All this is packaged in an easy-to-use software shell with logically clear and convenient navigation.The entire content of the course is divided into large thematic sections, which, in turn, are divided into subsections ...

One good engineer, an electronics engineer, said that if, supposedly, there is a relay in the circuit, then it needs to be improved. And one cannot disagree with this: the contact actuation resource of the relay contacts is only a few hundred, maybe thousands of times, while a transistor operating at a frequency of at least 1 KHz makes 1000 switches every second.

This circuit was proposed in the journal "Radio" No. 9 of 2006. The algorithm of the circuit is the same as in the previous two: with each short click of the switch, a new group of lamps is connected. Only in those schemes there is one group, and in this whole two.

It is easy to see that the basis of the circuit is a two-digit counter made on the K561TM2 chip, containing 2 D - flip-flops in one housing. On these triggers a normal two-digit binary counter is assembled. Each unit in these numbers indicates that the corresponding transistor is open ...

Dangers and hardships await a person always and everywhere, well, if not danger, then minor troubles and inconveniences are frequent guests, even in their own apartment.

A simple example. Your wife bought you a chandelier as a birthday present (last year you gave her a screwdriver or a drill), and offers to hang it in the bedroom, where before that for so many years the lonely “Ilyich’s bulb” has served faithfully. Perhaps even without a lampshade or shade.

A chandelier of three or even five lamps shines with beautiful glass and metal, and three, or maybe all four wires, stick out invitingly from it. What is called a transparent hint to replace the wiring in this room. After all, only two wires came up to a single lamp, and a single switch still hangs on the wall. It is simply uneconomical to light five lamps at once, and it is not always convenient ...

A selection of the best articles on bgv.electricianexp.com on the topic of home electrical wiring, the right selection of materials, various modern wiring products, the choice of protective electrical devices for an apartment electrical panel, and much more.

For different types of wiring, different wires and cables are used. It is most preferable to use wires and cables with copper conductors. From the article which wires and cables are best used in home wiring, you will learn the most preferred brands of wires and cables for home wiring, their differences from each other, technical characteristics and features of their selection and use. The article also describes the requirements of the PUE for painting the insulation of wires and cables. In order for the wiring to be reliable and safe, it must be correctly placed ...

Network interference as they arise. Network filter device, the purpose of its elements. Features of network filters.

Alternating current in a household network is sinusoidal. This means that changes in voltage, and, consequently, in current, occur along a sinusoid, that is, along a smooth arc oscillating symmetrically around the time axis. In one second, the voltage in the outlet changes its value from +310 to -310 volts fifty times. So, in theory, an AC network of 220 volts 50 hertz works.

However, if we look at the voltage waveform in our outlet, we will see that it is far from ideal. What is there a sinusoid !? Continuous peaks, impulses, shape distortions, amplitude changes, throws and jumps - this is what we will see. All this very spoils the picture and is able to disable household appliances ...