In this article we will analyze in detail all the subtleties of the process of the device in the apartment of the new wiring. This work can be successfully carried out independently. But, before starting work, it is very advisable to start objectively assessing your real capabilities, since installing electrical wiring in an apartment is a complex process and certain knowledge and skills are necessary for its successful implementation.

Cable brand selection

1. Each core of the wire must be rigid (single core), because all sockets and switch are designed for installation with a hard wire.
2. The choice of brand of occasion. Three types of wire are mainly used: NYM, VVG, PUNP.
NYM cable is a cable with copper single-wire conductors with reliable triple insulation.
The first layer is PVC, the second layer is a rubber sheath, the third is each copper core in PVC. But this wire is not without flaws. It is not recommended to be placed in raw concrete and carried out outdoors, it has a large diameter and is quite expensive.
But, if you do wiring in the apartment and want something more reliable, then take, of course NYM.
VVG cable - cable with copper single-core conductive conductors, with insulation from PVC compound - value for money. It has double insulation: common PVC and each core in PVC. VVG can be laid anywhere: both on the street and in concrete. Isolation is slightly worse than NYM, but better than PUNP. If you do not need extra expenses, we select the simplest and most commonly used PUNP wire ...

Tesla was appropriated by the clairvoyant's abilities; he possessed a pronounced gift of foreboding. The inventor claimed that he could completely disconnect his brain from the outside world. And in this state, “outbursts of enthusiasm”, “inner vision” and “bouts of hypersensitivity.” Descended upon him. At that moment, the scientist believed, his mind penetrated into the mysterious subtle world.

Once friends from Philadelphia, who were visiting him, were going to return home by train. But Tesla felt a strange desire to detain them in any way. The train on which they were supposed to return was wrecked.

Another time he had a dream that his sister was mortally ill and died. And this turned out to be true, although he did not receive any information about her illness.

And when the financial beneficiary of Tesla J.P. Morgan bought a ticket for the first flight of the Titanic, the inventor categorically insisted that he refuse the trip. Morgan believed Tesla and refused a prestigious flight.

Tesla was a really amazing person, a phenomenally successful engineer, inventor and scientist, who also did without abstracts and drawings ...

The loss of performance of capacitors may occur due to:

i) a short circuit inside it;

b) a chain break inside it;

c) increase in leakage current;

d) decrease in capacity.

An inoperative capacitor can be determined by an ohmmeter, a special device for measuring capacitance, or a test circuit.

For a rough check of the suitability of capacitors, it is recommended to control them using resistance meters (ohmmeter, combined device - multimeter).

The verification procedure is as follows ...

One of the main directions of the development of science outlines theoretical and experimental studies in the field of superconducting materials, and one of the main directions of the development of technology is the development of superconducting turbogenerators.

Superconducting electrical equipment will dramatically increase electrical and magnetic loads in the elements of devices and thereby dramatically reduce their size. In a superconducting wire, a current density of 10 ... 50 times the current density in conventional electrical equipment is permissible. Magnetic fields can be brought to values ​​of the order of 10 T, compared with 0.8 ... 1 T in conventional machines. Given that the dimensions of electrical devices are inversely proportional to the product of the permissible current density and magnetic induction, it is clear that the use of superconductors will reduce the size and weight of electrical equipment many times!

According to one of the designers of the cooling system of new types of cryogenic turbogenerators, the scientist I.F. Filippov, there is reason to consider the task of creating economical cryoturbogenerators with superconductors solved. Preliminary calculations and studies allow us to hope that not only the size and weight, but also the efficiency of new machines will be higher than that of the most advanced generators of a traditional design ...

Safe operation of the washing machine is paramount. To ensure this, it is necessary to organize the connection from the switchboard of a zero or ground bus with a cross section of at least 3 mm. In this case, the outlet should be replaced with a three-wire. The connection diagram is shown in the figure.

Often in apartments with a gas stove there is also a socket for an electric stove that is not used. It can be used to connect the washing machine, since the grounding wire is already in it. To do this, replace the socket for the electric stove with a standard socket with a grounding contact.

And we use an extension cord with a grounding contact.

I draw your attention to the fact that the ground wire must be insulated, it is strictly forbidden to connect it to heating radiators, water supply systems, gas supply systems ...

Canadian researchers led by Dr. Andrés Lozano of the University of Toronto have developed a new treatment for depression. They found that patients with severe depression who could not be corrected with medication could benefit from exposure to a certain area of ​​the brain.

Currently, the most common way to treat depression is with medication. But it has several disadvantages: significant side effects and contraindications. Moreover, sometimes severe depression is generally not amenable to correction with drugs.

Therefore, back in 2002, Canadian scientists began to develop a new, therapeutic method of treatment. Its essence lies in the impact on the part of the isthmus of the cingulate gyrus - a zone of the brain located deep enough. It is this site, scientists say, that plays a significant role in the regulation of human emotions, that is, is associated with the development of depressive states.

To stimulate the isthmus, the doctors implanted electrodes into the patients through which weak impulses of electric current were passed ...

So, before you is a "specialist" who is ready to start work in your apartment (house). How to determine that this electrician is exactly the one you were looking for, having phoned several companies and private masters?

1. The very first, a self-respecting master will take off his shoes and ask for slippers at the entrance to the apartment. Before starting work, he will warn you about places where, in his opinion, it will be dirty and will ask you to remove / hide objects that may get dirty.

2. The foreman (or foreman) who will work here directly should go for a measurement (initial inspection, budgeting).This condition will allow you to no longer repeat your conditions to each new representative, and the master will be able to take everything into account as correctly as possible and the error of the "third person" will be eliminated.

3. Electrician - a specialist does not start a conversation with money, but with the amount of work, conditions, your wishes.

4. A real electrician will find out ...

The famous phrase about "electrification of the whole country" was not invented by Lenin. And the pride of the Bolshevik GOELRO-Dneproges plan was designed before October. The revolution and the Civil War only delayed the electrification of Russia

Before the solemn inclusion of the Ilyich bulb in the village of Kashino near Moscow, another 40 years remained. This, however, did not stop enthusiasts from introducing electricity into Russian life to light hitherto unprecedented electric lamps on the Liteiny Bridge in St. Petersburg in 1880 - after all, the innovators did not know that in the Soviet future it would be the first Kashin lamp to be declared the first in Russia. It was completely different for them: the monopoly of the owners of gas lamps in the imperial capital — they had the exclusive right to cover St. Petersburg. But for some reason the Liteiny Bridge fell out of this monopoly. The ship with an electrical installation that lit the lanterns was also brought to him.

Just three years after this demonstration of “antitrust light presentation”, the first power station with a capacity of 35 kilowatts was opened in St. Petersburg - it was located on a barge moored at the Moika embankment. There were installed 12 dynamos, the current from which was transmitted by wire to Nevsky Prospect and lit 32 street lamps. The station was equipped by the German company Siemens and Halske, at first it played a major role in the electrification of Russia.

Three years later, in 1886, the Electric Lighting Society was founded in St. Petersburg, bringing together scientists and businessmen in the "electrification of the whole country" (these "Leninist" words were already written down in the charter). Most of the company's shareholders were foreigners - primarily the same Siemens concern - but the technical personnel were Russian.

Although in the field of energy, the Russian Empire lagged noticeably behind Western countries, the development of the industry at the turn of the nineteenth and twentieth centuries took great strides ...