One of the most useful skills of any person professionally associated with the maintenance and repair of various electrical and electronic devices and devices is the ability to solder. In this article we will consider the basic concepts and rules that you must know before proceeding with the soldering itself. The main emphasis in the article is made on the consideration of safety rules when soldering.

Brazing is a method of joining metals using another, more fusible metal. The soldering process is the penetration of one substance (metal) into another at high temperature, which provides after hardening of the solder mechanical strength and high electrical conductivity of the connection. Soldering usually occurs at high temperatures of soldered surfaces and molten tin (from 180 to 250 ° C). In this process, one of the metals is the welded conductors, the second is solder ...

A microwave oven has long settled in the kitchen of every home, in a cafe and even in an office. The ability to quickly warm up your favorite dish will not surprise anyone. But not so long ago, the microwave was a curiosity. Unfortunately, like any other technique, microwaves do not rarely break. This happens for many reasons. The fault can be caused by marriage in production and improper operation and unstable power supply.

When household appliances break down in a house, most people turn to repair shops. But far from everything - there are those who like to do everything with their own hands, and this article is for them. As you probably understood from the name, it will focus on the repair of microwave ovens.

If the circuitry for you is a dark forest, do not rush to close the page. This is much simpler than it might seem at first glance ...

Among the whole variety of cable laying methods and wiring devices, wireline wiring stands apart. The need for it may arise if the surrounding building structures have a very complex terrain and are interspersed with large voids. This is possible, of course, only in production and storage facilities, as well as outdoors. After all, the inner walls of comfortable houses, offices and apartments are always more or less even, and you do not want to disfigure them with a string or cable with a bundle of wires, although the rules do not prohibit this.

So, cable electrical wiring is, as the name implies, wiring for which the supporting element is a cable or string made of galvanized or dyed wire rod. This is the fundamental difference between cable wiring and overhead power lines. In overhead lines, the supporting element is the wire or cable itself ...

Overview of portable chargers with prices, a detailed description of each charging method in the field, advantages and disadvantages, models.

Technological progress, which presented us with wonderful and sweet things — cellular communications, mobile Internet and GPS navigation, putting them all together in a magic box called a smartphone or mobile phone, puzzled us with such an urgent problem as battery charging.

Of course, this is a bit of a sorrow - not sorrow if we are at home and a trouble-free outlet is at hand. But what about the one who is on the way? Especially in the woods, on a hike, fishing, on a deserted track or in an unknown country where no one understands your language and wonder at the color of your skin.The question of how you ended up in an unknown country will be left to your conscience, but now our goal is to be in touch in any situation! The most radical way to solve the problem is with a spare internal battery ...

Good coverage books are very rare. I already have a dozen books on this subject on my bookshelf, but only a few books are worthy of attention. One of the books on lighting that I found very useful is Lucy Martin's book, The Effects of Home Lighting.

This year I started a major overhaul in my apartment. Repair is very large-scale and complicated. When planning the repair, I provided for the replacement and modernization of not only all engineering networks, but also a complete alteration of the lighting system. Moreover, I borrowed interesting lighting ideas for each room in the apartment from the book "Effects of Home Lighting".

The book was bought by me in an online store shortly before the repair and fully met my expectations. In fact, this is an encyclopedia for organizing home lighting. Released by publisherstvom "Art spring". The book is translated from English. The author of the book is Lucy Martin. She is a lighting designer by profession ...

As a rule, many in the army or in their student years learn various ways of “artisanal” use of electric energy. Such methods are the “goat" and a home-made boiler. The following description of these two very dangerous devices is not for you to “experiment” with electricity yourself, but to explain how rude and unprofessional electricity is in this case and what unpleasant consequences such ingenuity can entail.

In all cases, the thermal effect of electric current is used. As already mentioned, electrical energy can heat the conductor through which it passes. Therefore, if you let an electric current through the corresponding material, you can achieve a thermal effect. The “goat" and the home-made boiler work on this principle. "Goat" is a pipe made of asbestos ...

According to any, even the most superficial studies, faulty wiring in a house or apartment is dangerous, first of all, not because of the risk of electric shock, but because of the prospect of a fire.

No, of course, the danger of electric shock is not excluded, but a fire is no less likely, and when it occurs, it can immediately take more than one life and bring great damage. Therefore, when designing, installing and operating electrical wiring, you must not forget about some measures that can ensure fire safety and protect people from harm.

Selection of the brand of cables and wires prescribed for use in installation. For stationary installation in residential and non-residential indoor premises, the use of VVGng or NYM copper cables is recommended.

It seems to many that the modern automation systems used in the "smart home" bear only costs to their owner. According to the majority, this is an expensive pleasure that is not accessible to everyone.

Nevertheless, an “intellectually developed” house is not only comfortable and safe, but also able to bring significant savings, reducing the cost of electricity and maintenance. This point is especially noticeable when it comes to a large apartment or cottage.

Statistics are always right. Thus, statistics show that smart home systems provide an opportunity to reduce energy costs by 8-12%, control of electricity and lighting leads to a reduction in electricity consumption by 3-5%, monitoring the operation of an automated building leads to lower costs its content is 3.5 times in comparison with the usual. An intelligent home requires a reasonable approach ...