Safe and reliable operation of the power supply system in enterprises and residential buildings is ensured through the use of switchboards, which contain distribution and protection equipment. These devices must comply with the most stringent safety regulations, and they must be distinguished by increased mechanical strength. In order to correctly choose the shield necessary for normal life, it is necessary, first of all, to understand some basic concepts about this electrical equipment.
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Today, any electricity consumption in offices, residential buildings, garages, manufacturing enterprises cannot do without the installation of a panel panel for distributing electricity. It combines the functions of ensuring the safety of use, and also provides a person with the ability to control energy consumption. If earlier it was possible to get by with one junction box, then at the current moment (with a huge number of electrical appliances used) a shield will be required. Now, even to replace a simple outlet in an apartment equipped with just a junction box, you will have to de-energize the entire living space.
The switchboard also allows you to limit the access of electricity to each specific room. Among other things, its installation will drastically reduce the risk of burnout of electrical appliances, due to the fact that with the help of it the energy is evenly distributed over all carrier channels, while not allowing any one to be overloaded. Thus, such devices are required not only by large consumers of electricity (manufacturing enterprises), but are also important for people's daily lives, because they have protective shutdown devices that prevent human electric shock.
Distribution boards are most often made of plastic or metal.The latter are distinguished by the fact that they are considered more resistant to mechanical damage, they have an increased service life, however, compared to plastic ones, they undoubtedly have more weight. It is advisable to install metal models in common areas or industrial premises. Plastic samples are easier to install, so they are perfect for installation in offices, apartments, offices. Moreover, they can be made in an artistic style, which will allow them to harmoniously blend into the environment and, moreover, they do not require grounding.
They may be responsible for the security of supplying electricity directly to an apartment, to the floor of a residential building, or to a large building. Depending on the area they serve, the shields are divided into the following types:
There are other types of switchboards that have a specialized purpose and an ordinary energy consumer can rarely meet them:
Conventionally, according to this criterion, switchboards can be divided into the following types:
Any power distribution device must be installed in a location where the following requirements are met:
No less important is the degree of moisture and dust protection. According to "International Enclosure Protection Codes", devices installed:
By design, they can be divided as follows:
All switchboards differ in the number of modules installed in them. In some samples, this number may not exceed ten units, and in some there may be twelve, and sixteen, and even eighteen. In order to correctly select the required model, you must first determine the wiring diagram in the room that will be serviced. To do this, it is enough to set the number of points of electricity consumption (sockets, devices connected to them that work constantly and periodically, lighting sources, etc.), that is, everything that is powered by the electrical network. After that, it is worth deciding on the groups of devices - for lighting wiring you will need automatic machines for 10 Amperes, and for a socket - for 16 Amperes.To safely turn off the power, you need to equip the shield with either a pair of circuit breakers or a residual current device. In principle, both of them can freely replace the differential automaton. As a result, a standard three-room Russian-planned apartment is unlikely to require more than 12-15 modules, but a large country cottage will hardly cost 16-24 modules.
IMPORTANT! It is worth mentioning that not a single trading platform (be it a retail or an online store) ever offers a ready-made and assembled shield - everything is selected individually, based on the parameters that the buyer declares. Thus, the enclosure is selected first, then, depending on the number of sockets, lighting sources and electrical appliances to be serviced, the number and power of the modules installed in the shield enclosure are selected. Accordingly, fully assembled electrical panels can only be found in the secondary market. In the same place, it is possible to roughly orient yourself on prices by analyzing the technical “filling” of the shield.
Massive shield from a Russian manufacturer. Designed to control the distribution of energy in industrial premises or on the territory of country cottages. The design is distinguished by a special massiveness, for convenience and protection from moisture and dust, it is desirable to place this main switchboard in a separate trailer.
Name | Index |
---|---|
Manufacturer country | Russia |
Power supply category | First |
Availability of ATS | built-in |
Number of sections | 2 |
Number of feeders | 15 |
Automation for starting a diesel generator | Present |
Automatic ATS in Amps | 3 x 630 |
Price, rubles | 390000 |
This device is a low-voltage main switchboard designed for use in networks with a voltage of 220-380 V, the frequency is 50 Hz. Scope of application - non-production and industrial facilities. In addition to standard functions, it has the ability to take measurements not only in emergency situations, but also to signal the slightest excesses on an ongoing basis. The design itself assumes a block-modular type of configuration.
Name | Index |
---|---|
Manufacturer country | Russia |
Rated voltage in Volts | 400 |
Rated busbar current in Amperes | 4000 |
Number of sections | 6 |
MTBF in hours | 20000 |
Through short circuit current | 85 |
Price, rubles | 500000 |
Switchboard designed to serve a small residential/office. It is made in a metal lockable case and has a surface-mounted design for indoor installation. The kit comes with a re-grounding device and it also includes mounting accessories.
Name | Index |
---|---|
Manufacturer country | Russia |
Phase counter | 3-phase, 15 kW at 25 amps and above |
Tariff | Double |
Availability of outlets | 2 |
Circuit breakers | Present |
Re-grounding | Present |
Price, rubles | 7800 |
This group board is designed for receiving/distributing electricity with a voltage of 220-380 V at a frequency of 50 Hz. The main scope of application is the closure of group lines of local and remote switching for powering electrical appliances in public, administrative and industrial buildings. The equipment has a safety certificate for low-voltage devices.
Name | Index |
---|---|
Nom. main circuit voltage, Volt | 220-380 |
Nom. control circuit voltage, Volt | 24/220 |
Current | variable |
Nom. AC frequency, Hertz | 50.1 |
Nom. isolation voltage, Volt | 450.1 |
Working mode | Continuous |
Service | Unilateral |
The design of the shield | Mounted/ |
embedded | |
Price, rubles | 9000 |
The shield is intended for installation in an apartment building in a special niche. Provides input lines without cutting along the trunk. The front door can be locked both with a key and with an ordinary latch. This board supports the placement of modules to serve from 2 to 6 apartments.
Name | Index |
---|---|
Manufacturer country | Russia |
Phase counter | 3-phase, 25 kW at 35 Amps and above |
Tariff | Single |
Availability of outlets | Missing |
Circuit breakers | Present |
Re-grounding | Present |
Price, rubles | 12000 |
As you know, any device that works with electricity, according to Russian law, is recognized as a source of increased danger. Therefore, when buying a switchboard, first of all, one should be guided by the principles of human safety. Low price, cheap manufacturing materials, unknown brand - all this should scare off a potential buyer. After all, such a shield simply will not be able to evenly distribute energy along the lines, which can lead to irreparable consequences. As an analysis of the preferences of the Russian consumer in this market shows, models of Chinese and Turkish production are extremely low in popularity. Almost any domestic product is the bestseller (it is the easiest to get). Among foreign brands, the Greek company FOTKA is in the lead, followed by the European Makel and IEK, and the list is closed by an ultra-expensive and very high-quality product from the American ABB. Finally, it is worth mentioning that it is better to purchase switchboards with a transparent front door - this will make it easier to control modules and machines.