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What cable do you need to connect the house?


What cable is needed to connect the house to the electrical network, or, more simply, from the pole with wires to your house, everyone asks such a question before laying all the wiring around the house.
So in order. To carry out the introduction of electricity into the house from the pole, you need to decide on the choice of a suitable cable for the lead-in panel.
In this situation, it is very important not only to correctly calculate the cross-section of the wire, but also to choose a brand of a reliable manufacturer for long-term operation of the cable. In this article, we will just consider what kind of cable is needed to connect a house to the power grid over the air and underground.


Cable for connecting the house to the electrical network by air:



SIP-4 – stands for self-supporting insulated wire. This conductor is used for overhead power lines up to 1000 Volts. The insulation is made of light-stabilized cross-linked polyethylene. Operating temperature range from -60 to + 50 degrees. The wide range of cross-sections and price range makes it an ideal candidate for connecting your home to the mains. The wire is suitable for connecting both single-phase consumers (220 volts) and three-phase (380 volts). Of the minuses, one can single out: the use of specialized couplings.


AVVG cable – aluminum, PVC core insulation, PVC sheath, bare (no protective covers). Designed for use in temperate, cold and tropical climates. It is used for laying in air, damp and dry rooms, canals, trenches, partially flooded rooms with medium and strong corrosive activity. For air routing, cable routing must be used. The conductor is suitable for connecting consumers to the power grid for both 220 and 380 V.


VVG This is a copper cable, PVC core insulation, PVC sheath, without additional protection. Analogue of AVVG in design and characteristics, but with copper conductors. Used in networks up to 1000 volts. The climatic version has a temperate and cold climate. It is also used for laying outdoors, in dry and damp rooms, in tunnels and wells, etc. For air wiring, it is necessary to make cable wiring, and use the cable as a supporting element, and tie the cable itself to the cable at regular intervals. At the same time, keep in mind that the cross-section of copper cables in the branches must be at least 10 mm², as well as the fact that the insulation of VVG and AVVG cables is destroyed under the influence of ultraviolet radiation. Such cables, in addition to laying on a cable, should be additionally protected with a UV-resistant polypropylene corrugation.


To lay a cable from a pole to a house underground in a trench, the following types of cables are often used:

АВббшв e


AVBbSHv  – the construction of this cable includes aluminum conductors, PVC insulation of current-carrying conductors, an armored covering, steel galvanized strips and a protective PVC hose. They are used for transmission and distribution of electricity in networks up to 3 thousand volts. Manufactured in UHL climatic performance and tropical climate. Temperature range from -50 to +50 degrees. Its service life is 30 years. This cable is not afraid of groundwater, it is not afraid of damage. The presence of a layer of armor makes it a great candidate for connecting your home to an underground power grid. Its full analogue, only with copper current-carrying conductors, is the VBbshv brand.

вббшв e


VBbSHv the cable has copper conductors, the insulation of the current-carrying conductors is PVC plastic, an armored coating and galvanized steel tapes are additionally provided, protected by a PVC hose. In addition to connecting country houses by an underground method, this cable is intended for outdoor installation on overpasses and galleries.


What parameters should be considered when choosing a cable?

First of all, you need to determine the current loads that will pass through this cable in order to determine the thickness of the wires, professionals call this parameter the cross-section of the wires. People who have not encountered such a question sometimes confuse the cross section with the diameter, these are fundamentally different indicators.

The section is considered S – the area of the circle of the cut wire. We give the formula for calculating the cross-section of the wires. It is best in this case to use a calculator that is designed for the convenience of users, you can easily calculate the required cross-section of a wire or cable for current or given power.

«Calculator for cable cross-section»


Typical private houses consume approximately 4-6 kW. But it is best, when calculating the connection of a house to the electrical network, to use an accurate calculation method, it consists in summing the power consumption of all electrical appliances in the house.

Naturally, everyone has their own house and their own electrical appliances and consumption. By adding up the power of all household appliances, we get the maximum power that can be consumed in a given house. Let’s calculate approximately in W:


electrical appliances power min power max.
Lighting devices (bulbs, lanterns, etc.) 700 800
Television 150 200
Fridge 150 300
Computer 150 800
Washer 700 900
Water heating boiler 1500 2000
Warm floor 1800 2000
flatiron 1500 2000


Knowing the power of the devices and summing up the load current on the cable wires, we get from 5.65 kV to 9 kV. Again, this depends on whether these devices will be turned on all at the same time, and what power all these devices have, how many devices (someone may have one computer, someone else has three, etc.). Since technologies are developing in the world, it is better to buy a cable with a power reserve. Zaporozhye plant of cable products MPKA, offers a full range of cables and wires of various types, for various types of installation and different capacities, and the needs of the buyer. You can get acquainted with the assortment by going to site

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