Connecting to the electricity network of a private house is a rather painstaking process faced by owners of private houses. Perhaps you are planning to connect a newly built house to the electric network or you will restore a house disconnected from the network for one reason or another. In this case, the question is ripening about how to connect a private house to the mains. In this article we will try to answer this question.

The first thing that starts the process of connecting a private house is to obtain technical conditions in specialized organizations of your city. To do this, you need to visit an organization that deals with the sale of electric energy, as well as an energy supply company that manages the electric networks of your locality. In these organizations, you are applying for a home connection to the power grid. Preliminary check in these organizations ...

Incandescent lamps. In a flask without air, there is a tungsten filament that heats up when an electric current is passed through it - this is what an incandescent lamp is. For over 120 years they have been the main source of artificial light. The range of incandescent lamps ranges from huge searchlights to miniature ones in pocket flashlights. Incandescent lamps have a very modest light output of 10-15 Lm / W, because the luminous flux of an incandescent lamp is not more than 3000 Lm. Incandescent lamps warm more than they shine: most of the energy goes into heating the filament. Based on this, it is clear that the color temperature of incandescent lamps is closer to warm colors (2400–2700 K).

The service life of incandescent lamps is also very modest, about 1000 hours. Why do people continue to buy more than 15 billion pieces a year of these rather short-lived and inefficient light sources? ...

In addition to electrical apparatuses of general use (starters, intermediate relays, switches, etc.), special control and control devices, for example, pressure relays, level control relays, jet relays, etc. are used to automate pumping installations.

Level control relays regulate the operation of pump starters and valves to control fluid levels. Such devices are able to maintain a fixed water level in tanks.

Modern liquid level control relays are electronic devices, most often of modular design, receiving signals from sensors, processing them according to a certain algorithm, and switching actuating elements connected to the relay output contacts (electromagnetic valves, pump motors). Since the maximum switched current of the output circuits of electronic level control relays usually does not exceed ...

Amateur radio is still one of the most common hobbies. If at the beginning of its glorious path amateur radio mainly affected the design of receivers and transmitters, then with the development of electronic technology the range of electronic devices and the range of amateur radio interests expanded.

Of course, such sophisticated devices as, for example, a VCR, a CD player, a TV or a home theater at home will not even be assembled by the most qualified radio amateur. But repair of industrial production equipment involved in a lot of amateur radio enthusiasts, and quite successfully.Another area is the design of electronic circuits or the refinement of “up to luxury” industrial devices. The range in this case is quite large ...

If you purchased an apartment, you probably wondered about the overhaul, especially if this apartment is in poor condition. One of the stages of the overhaul is a partial or complete replacement of the wiring. If you are sure that the wiring of this apartment does not meet the expected loads and you have enough money, then make its full replacement. In this case, you will be absolutely sure of the quality of the wiring of your apartment.

The option of partial replacement of the apartment wiring is also possible, which is important for those who do not have enough funds necessary for its implementation. In order to determine whether the replacement of the wiring of the apartment is necessary, it is necessary to make its audit. The question of how to conduct an audit of wiring, we will consider in this article. The purpose of the posting audit is to identify problem areas ...

The temperature regulator in everyday life is used in a wide variety of devices, from the refrigerator to the irons and soldering irons. Probably, there is no radio amateur who would bypass such a scheme. Most often, temperature sensors, transistors or diodes are used as a sensor or temperature sensor in various amateur designs. The operation of such temperature controllers is quite simple, the operation algorithm is primitive, and as a result a simple electrical circuit.

The preset temperature is maintained by turning the heating element (TEN) on and off: as soon as the temperature reaches the set value, the comparator (comparator) is activated and the TEN is turned off. This principle of regulation is implemented in all simple regulators. It would seem that everything is simple and clear, but this is only until it comes to practical experiments. The most difficult and time-consuming process ...

LED furniture lights are used to illuminate the space under such furniture elements as kitchen cabinets, shelving, bookshelves, headsets, etc.

Furniture LED lamps are designed in accordance with the latest trends in the development of lighting devices, so they are characterized by a large number of advantages. Among them are: small power consumption, small size, high brightness of LEDs, high fire safety and, accordingly, the ability to install directly on the furniture surface, beautiful appearance that fits perfectly into any room interior design, reliable protection of LEDs with a diffuser, which in addition to the protective function provides a wide angle of dispersion of the emitted light flux, a long service life (more than 10 years), ease of installation and subsequent connection ...

When planning an overhaul of an apartment, the question arises of choosing lighting equipment. I would like to introduce some kind of innovation, a twist. There is a great alternative to traditional lamps - LED strip. Installing LED strip on the ceiling will radically change the overall appearance of the whole room. At the same time, great opportunities open up for you in choosing the best design solution. You can choose either a single color tape or a three-color one, that is, an RGB type tape.

Among the advantages of using LED strips can also be noted the ability to adjust the brightness of the lighting, as well as the speed of color change.You can choose the lighting for any mood and your surroundings. In addition, for the installation of LED strip, you do not need to call specialists, since it can be easily mounted and connected independently. This article will talk about how to install ...

Electricity has firmly entered our lives. While it is, we do not notice it. It seems that this has always been and will be, but if he faces the abyss, and we understand that this is a problem. Especially when a power outage occurs without warning.

The lights go out, the TV and computer turn off, you have to adjust your plans, and in addition to this, eliminate the consequences, starting with the search for candles, flashlights and matches and ending with a leaky refrigerator and spoiled foods.

This problem was especially urgent in the 90s of the last century, when there were so-called rolling blackouts. Now there is no planned shutdown - the phenomenon is much more rare. Nevertheless, it occurs and spoils life. All power outages have two types of causes: technical and economic. Technical reasons. Scheduled major or current repairs of the entire electrical household ...

Very often, the problem arises of failure of the charger of a mobile phone or other device, which is used to charge the battery charger. The main reasons why the charger may fail are as follows: wire breakage, failure of the charger unit, violation of the contact connection of the wire with the plug or charger unit.

Very often, the cause of the failure of the charger is a wire break or a violation of the contact of the wire with the structural elements of the charger - plug and block. In this case, you can repair the charger yourself. Consider the principle of repairing damage to the charger wire using a specific example of repairing the charger of a Nokia mobile phone (with a thin plug). To repair the charger we need: a multimeter, a knife, a soldering iron ...

The problem of finding alternative methods of heating apartments and houses does not lose its relevance. One of the modern solutions for space heating is the installation of infrared films. All their advantages are described in detail by sellers of such products.

We give a specific example of the use of this type of heating. The owners of a three-room apartment building, it was decided to heat their home using infrared films. They turned to the appropriate company, whose specialists installed and commissioned the necessary equipment.

A temperature controller was installed in each room to control the temperature. The heating performance was tested, the owners performed the calculation, and the company employees left. After a short period of using infrared heating, a serious problem arose. The fact is that the power of a meter of a square heating film is 250 W ...

There are many transistor circuits (just remember the number of at least household equipment) for amplifying and converting electrical signals, but, with all the diversity, these circuits consist of separate stages, the basis of which are transistors. To achieve the necessary signal amplification, it is necessary to use several stages of amplification, connected in series. To understand how amplifier stages work, you need to become more familiar with transistor switching circuits.

The transistor alone cannot amplify anything.Its amplifying properties are that small changes in the input signal (current or voltage) lead to significant changes in voltage or current at the output of the cascade due to the expenditure of energy from an external source. It is this property that is widely used in analog circuits - amplifiers, television, radio, communication, etc. To simplify the presentation, we will consider here...