How to choose a differential machine

How to choose a differential machineBefore talking about the choice of a differential automaton, it should be explained how this issue has earned such popularity. Why are differential automata good? Of course, by the fact that the difavtomat is a device that provides the line not only protection against overload currents and overcurrents of short circuit, but also protection against leakage currents, that is, protection against human shock by electric current.

In other words, a single device provides the full range of necessary protections. This is very convenient because it saves space in the distribution board and simplifies installation. In some cases, money savings are also achieved, but this is relative, since a high-quality differential machine can be more expensive than a single ordinary machine and a residual current device (RCD). So, what is good for difavtomat, clearly. It remains to decide how to choose it ...

 

Installation of electrical wiring in a wooden house

Installation of electrical wiring in a wooden houseThe specifics of installing electrical wiring in a wooden house is that wood is a combustible material. Therefore, any malfunction associated with a short circuit, overloading of cable lines and their overheating can lead to fire and fire.

Therefore, the features of installing electrical wiring in a wooden house are: hidden wiring - either in metal pipes, or according to the outline of the plaster. Open wiring - strictly either in a corrugated pipe, or in boxes, or on rollers.

In addition, the installation of switches and sockets on wooden walls is possible only when using insulating linings made of material that does not spread combustion. Often such linings come with electrical products. Well, of course, in a wooden house, protective grounding is of particular importance ...

 

How to connect an electric sauna stove

How to connect an electric sauna stoveSauna is, first of all, a bath. And the creation and maintenance of the necessary microclimate in the bathhouse is a very technologically challenging task. Therefore, it is clear that the bath furnace plays a major role in this process.

And it is not surprising that today sauna furnaces have long been automated and electrified. The microclimate in the sauna is at the mercy of a technique that never makes mistakes and never forgets anything. A modern sauna stove is, in the vast majority of cases, a factory electrical appliance that incorporates several structural elements and requires competent connection and installation.

The structural elements of an electric sauna stove are as follows: The stove itself with a heater and built-in heating elements, as well as terminals for connection. Optionally, the furnace can include a steam generator as well as a tank designed for automatic or manual filling with water ...

 

Connection of wires by crimping

Connection of wires by crimpingOf course, there are so many ways to connect wires. All kinds of terminal blocks are widely known: screw and spring, insulated and not. Nut clamps and piercing clamps are popular. Finally, some people simply do not pay attention to common norms, preferring elementary twists. And one of the most reliable connections is wire crimping.

After crimping, the cores of the wires cannot be disconnected without cutting them, i.e. this is an integral connection. But it does not need maintenance either. The essence of crimping is reduced to the joint deformation of the connecting cores and the crimping sleeve into which these cores are inserted. The sleeve is compressed, deformed, compresses the cores, microroughnesses on the surface of the metal conductors are in mutual engagement, and reliable electrical contact is ensured. But it only seems that everything is so simple ...

 

Why can not connect copper and aluminum in the wiring?

Why can not connect copper and aluminum in the wiring?The fact that in electrical engineering it is impossible to directly connect copper and aluminum conductors is not a secret even for many ordinary people who have nothing to do with electrics. On the part of the same inhabitants, professional electricians often ask: “Why?”.

Pochemochki of any age can drive anyone into a dead end. Here is a similar case. A typical professional answer: “Why, why ... Because it will burn. Especially if the current is high. " But this does not always help. Since this is often followed by another question: “Why will it burn? Why does copper with steel not burn, aluminum with steel not burn, and aluminum with copper burn? ” To the last question you can hear different answers. Here are some of them. Aluminum and copper have different coefficients of thermal expansion. When current flows through them, they expand in different ways. ...

 

Replacing the electrical distribution panel of the apartment

Replacing the electrical distribution panel of the apartmentIf you need to replace the apartment switchboard, many questions arise. If a person does not have electrical work experience, then he is inclined to solve this problem by attracting a specialist. But is it difficult to actually replace the electrical distribution panel of the apartment?

In this article, we will consider the process of replacing a dashboard in various situations, give practical recommendations that will help to carry out this work on their own, without the help of specialists.

The complexity of the work in this case depends on the current status of the shield. Damage to the old shield due to fire is the most difficult option. The complexity of the work in this case is due to the fact that when a shield ignites, the wiring lines that are connected to it are also damaged.If the wiring lines in the shield are damaged ...

 

How to power the garage

How to power the garageWhen you first purchased a garage, one of the issues that needs to be addressed is the power supply to the garage. If the garage was originally connected to the electric network and disconnected due to violation of the contract for the provision of services to the energy supplying company, the process of powering the garage comes down to resolving the issue with the same company regarding re-connecting the garage to the electric network.

Otherwise, that is, if the acquired garage was not connected to electric networks and there is no electrical wiring, then it is necessary to supply the garage with electricity from scratch. In this article, we consider the features of the design and installation of garage wiring, as well as ways to connect the garage to the electrical network. First you need to make a list of electrical receivers that are planned to be used in the garage. Firstly, this is lighting equipment ...

 

How to properly transfer the socket and switch

How to properly transfer the socket and switchThe need to transfer sockets and switches, as a rule, arises after moving furniture in the apartment, or when wiring is brought to the so-called European standard, according to which sockets are installed at a height of 20 - 30 centimeters, and switches at a height of 90 - 120 centimeters from the floor.

If you want to lower the outlet, and the wiring is done in a coupler, then just install the new installation box in the desired location and shorten the cable to the desired length. The situation is more complicated when you need to increase the cable. Two tasks immediately arise here. How to connect cable cores so that the connection is high-quality and durable, and what to do with the old installation box.

The worst solution to this issue is to connect the cable, for example, twisting the cores, insulating the twist, cover the wires with alabaster in the old installation box and forget where this time bomb is ...

 
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