Electricity consumption in residential buildings is constantly growing. Each inhabitant of our country, in terms of per capita, consumes a daily amount of energy many times greater than the data, for example, fifty years ago.

In the middle of the twentieth century, in every private house there were just all electrical appliances, that is an electric stove, several light bulbs and, at best, a TV or radio. Today, household electrical consumers are simply dark in any residential building, and in private homes three-phase cable entries have become increasingly common. Many refuse a traditional single-phase network.

But what are the advantages of a three-phase network? And is it worth it to definitely give her preference? Many believe that a three-phase network will consume more power, that is, turn on more devices. This is not entirely true ...

The owners of small-sized Soviet-built apartments are hardly familiar with a similar problem. They are used to the fact that sockets are located on the walls. Well, in fact, where else? On the wall it is both accessible and safe - it will not flood with water and no one will kick or step with a foot.

But imagine some room in a luxurious country house with an area of ​​100 square meters or more. Let us suppress the impulses of, of course, white envy (and, perhaps, sincere hatred of luxury?) And imagine, let’s say ... a synthesizer.

Needless to say, the idle extension cord stretched to the instrument from an outlet in one of the walls will completely destroy all the pathos of the interior in such a situation? And how to power this damned synthesizer? The only solution that may come to mind is a wall mounted socket ...

Why does the outlet sparkle? And the socket can glow. An uneven, twitchy, but rather bright light. But this light does not inspire others with any optimism and does not create any festive mood.

On the contrary, in people far from electrical engineering, such light causes superstitious, almost primitive fear. Almost like before thunder and lightning from our ancestors. Moreover, the nature of sparking in the outlet is the same as that of a lightning discharge of atmospheric electricity. And even “thunder” is present - in the form of dry cod.

It may, of course, not be afraid, but it is still worth fearing a sparkling outlet. And to remain indifferent, if such a "fun" outlet wound up in your apartment, it should not be. The temperature of the electric arc, which are the outlet sparks ...

The solution to everyday problems that occur when using the welding machine at home and in the country. Practical experience in using various types of welding machines.

The snow is gradually melting and the summer season is approaching, which for many is associated with the construction or troubles of arranging a summer cottage. One of the indispensable devices in the summer residence of the summer resident has long been a welding machine, especially since the prices of household welding machines have fallen to affordable for each 4-7 thousand rubles.

If you bought a welding machine for the first time or took it from a neighbor, then the question naturally arises - how to turn it on correctly? Turn it on correctly, it means turn it on so as not to spoil the sockets and wiring when using the device for its intended purpose, not to burn the device itself and carry out the welding process ...

About cases when the lamp constantly burns in the same lamp. On high starting currents in incandescent lamps, on transients and briefly on how to solve the problem.

The flip of a switch: a light flashes in the toilet, momentarily illuminating the modest interior of the restroom, and that’s all. The light was bright, but not for long. Having figured out in the twilight with your natural needs, drag the stool, unscrew the affected lamp. She, of course, can no longer help. We screw in a new lamp, throw the incident out of our head. And the next day everything suddenly repeats: a click, a flash, and the sudden death of a lamp.

What a disaster! Maybe the lamps are unsuccessful, defective? No way - in the corridor it burns exactly the same and without any excesses. Remembering in vain both Ilyich and Edison, we stock up on light bulbs and reluctantly weary our entire supply ...

How to extend the "life" of batteries and how to increase the number of charge / discharge cycles.

Most of the devices around us use electrical energy to operate. In most cases, they completely lack an electric network, especially household appliances. But, in a situation with personal electronics and other portable devices, you need a rechargeable battery that could provide the device with the right amount of energy outside the home.

For a long time, for the manufacture of batteries used technologies that have a number of disadvantages. But, since 1992, lithium batteries (lithium-ion and lithium-polymer) began to prevail in mass production. What can be done to extend the life of lithium batteries? We’ll talk about this today ...

When repairing electrical wiring or home electrical appliances, quite often the question arises of splicing electrical wires or creating a branch of the electrical network. The main task in this case is to ensure high-quality electrical contact at the junction of the wires and its reliable insulation.

Splicing wires ccool. When preparing the wires for splicing (branching), it is necessary to free a section of the wire from insulation. When using special tools to remove insulation, this operation takes a minimum of time and does not require skills from the master.

But, as a rule, only sharp knife is listed in home tools, and then you need to keep in mind some simple tricks: you can not cut the insulation by holding the blade of the mounting knife perpendicular to the wire ...

Getting hit is very unpleasant. And the most painful are blows from those from whom you do not expect aggressive behavior, who, on the contrary, are called upon to create coziness and comfort in your home. For example, how do you like it if your washing machine starts to fight?

Meanwhile, when included in a two-wire line, this is possible even for an absolutely functional washing machine. The reason is the features of the built-in mains filter located at the input of electrical power. The filter consists of two capacitors with a common point on the machine body. One capacitor connects the housing and the phase wire, and the other connects the housing and the neutral wire.

Manufacturers of modern washing machines naively believe that their creations will be included only in a three-wire electric network with a separate ...