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 floodlights 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 wiring 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 problem of frequent burnout of lamps is quite common in our time. Lamp manufacturers claim lamp operation for several thousand hours. But in fact, the lamp can burn out without having worked even a few hundred hours, or even less. If you often have to change the lamps, then you can use a special device that will ensure the continuous operation of any lamp. In this article, we will consider one of the most common devices - the lamp protection unit "Granite".

What functions does this device perform? The lamp protection units have a unique system that ensures a smooth start of the lamp. That is, this device protects the lamp from inrush currents when it is turned on, which is the main reason for the burnout of the lamps, regardless of their type. In addition, the protection units "Granite" provide reliable protection for lighting equipment ...

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 ...