During repair and construction work, one cannot do without a power tool, the quality of the repair as a whole will depend on its quality. Therefore, it is very important to choose the right tool, which will be discussed further.

Today it is impossible to imagine apartment repair without using a power tool. Arriving at any specialized store, you can appreciate the huge variety of types of power tools, where each device has its own purpose and technical characteristics. Choosing a power tool is not an easy task. It’s not enough to understand that for drilling walls you need a drill or punch, you also need to understand the technical characteristics and capabilities of the tool. First of all, you need to determine for yourself which tool you need - professional or non-professional ...

For safety reasons, lamps with halogen lamps, designed for a reduced voltage of 12 volts, are widely used. For the installation of such spotlights in a household electrical network, it is necessary to use step-down transformers. But transformers, which many are used to in industry, are not suitable here because of their large size and weight. Only special electronic transformers can be used.

Electronic transformers are assembled on semiconductor technology and their power, as a rule, is not large - no more than 500 watts. But such transformers are small, economical in operation and incorporate a built-in soft starter.

Each electronic transformer is equipped with terminals for connecting the wires of the high side (220 V) and low side (12 V). Moreover, low-voltage terminals, of course, more ...

Spotlights look very impressive in any living room. But the choice of such lamps, the determination of their required quantity, power and location is simply an overwhelming task for an ignorant person, able to discourage any desire to bother with “spotlights”.

Indeed, with ordinary chandeliers, everything is much simpler: you place it in the center of the room, equip the lamps with the maximum possible power - and you're done. At the very least, such a chandelier will certainly illuminate the entire room if it is not completely blocked by furniture.

With spotlights, things are a little more complicated. They are designed to create a uniform light flux, but in order for them to cope with their task, you will have to resort to some calculations. In general, the calculation of the number and location of spotlights does not have fundamental differences ...

Somehow imperceptibly in the field of electrical installation, a new era has come - the era of modular equipment. “Modular” means compact, uniform in size and easy to install. Well, with compactness and unification, everything seems to be clear. And ease of installation - what is it?

In the same apartment switchboards today there are so many different equipment! Dozens of units. So let's try to imagine that each such unit is mounted in the old fashion, with screws.

So: we take the first circuit breaker, mark the back wall of the shield, drill according to the marking, insert the screws into the circuit breaker case, - catch the screws on the back with nuts, tighten the screws, holding the nuts ... Uff ...! It seems that one machine with a sin was fixed in half. There is nothing left: a dozen machines, a pair of RCDs and an electric meter ...

Electricity entering the living room (for example, the apartment) must be distributed. It must be routed to lighting circuits, to outlets, to stationary consumers such as a hob or air conditioner. In addition, it would be nice to take into account the same energy, to calculate.

But, of course, this is not enough. After all, electricity can be not only “good”. Overcurrents of short circuits and overload currents do not spare the wiring and can cause a fire. Electric current itself is dangerous for human health and life. Therefore, to "tame" the electricity at the input, it is necessary to install protective devices.

Well, where is all this to be realized? What is this complete device that can accommodate all these devices and numerous wires and cables? Of course, this is an apartment distribution switchboard ...

Branching with wires with copper or aluminum conductors from trunk lines without cutting them. For these purposes, it is most convenient to use special clamps for branching wires, the so-called "nuts".

In this article, we consider the technology and the sequence of work when performing a branch of conductors from a trunk without cutting them using branch clamps.

Necessary tools and fixtures: a set of screwdrivers, wire cutters, universal wiring pliers, a utility knife, wrenches, any stripping tool (I use M-1U1, but any other one can be used). Materials - glass skin or sandpaper, trunk branching compresses. In order for the branch to turn out to be high-quality and reliable, it is necessary to correctly select the branch compression ...

Reliability in the installation and installation of electrical wiring depends on many factors, primarily on correctly selected wires and cables, electrical products, installation quality. Here are a few important rules that you must follow, since the reliability of the wiring performed depends on them.

Reliability of electrical wiring is determined by a number of factors and, first of all, by the correct choice of wires and cables in accordance with environmental conditions and load current. Do not use hidden and open wiring on heated surfaces, since heating the insulation above acceptable sharply reduces its service life. Wiring should be fixed to the building structures of buildings without reducing their strength. Incorrect wiring fastening ...

Some electronic devices are galvanically isolated from the lighting network. Therefore, compliance with safety regulations will not be superfluous, but this is a topic for another article, and many articles have already been written, anyone can read on their own.

The element base is what electronic circuits consist of, in other words, these are parts that are soldered onto printed circuit boards. And the entire elemental base cannot be described even in a huge thick book: for example, the online store of radio components “Elitan” offers customers more than a million items of goods from more than a thousand manufacturers from around the world.

Almost all modern electronic equipment is assembled on imported, quite simply, bourgeois element base. But in this regard, one should not particularly be upset, since the documentation for almost all microcircuits ...