In the garden in addition to a residential house are various outbuildings: garden furniture, garage, shed, and others. If they need to conduct electricity, there is the problem of choosing a suitable cable, which can be operated under the scorching sun and heavy frosts.
Electric cable laid in the street, exposed to several adverse factors:
- Solar ultraviolet destroying the insulation of electric cables, which ultimately could lead to a short circuit on the line;
- low temperatures in winter, because of which the wire insulation loses its elasticity and cracks;
- Strong gusts of wind have considerable strain on the cable.
Aerial bundled cable
SIW is mainly used to input electricity into the house from the electric poles to the building facade. Isolation of the cable made of cross-linked polyethylene that is resistant to solar UV radiation. Its core made of aluminum, with the neutral wire comprises a steel core performs the support function.
CIP It can be connected directly to the input machine electrical panel, if it is attached to the front of the building. If you want to make the electric cable inside the house, it is connected to a cable VVG using piercing connectors.
cable VVG
To conduct electricity in outbuildings available in the garden, it is recommended to use this type of cable. But it does not have a carrier core.
If you just stretch a cable between the two buildings, there is a high probability of failure due to a strong gust of wind or ice. Therefore, the first stretch the steel cable and the power cable is attached to it already.
Also cable VVG It must be protected from ultraviolet radiation, which gradually destroys the insulation. For this purpose the corrugations. And it is not recommended that you use corrugated PVC.
This material is also bad perenositsolnechnoe radiation, so it is usually used for cable inner liner. For the same street conditions can be used metal hose or corrugated plastic. The latter can be easily distinguished because it is black. PVC corrugation has a gray color.
Corrugation also have to use if you plan to lay a cable VVG of the building facade. By the side of the building it is attached with help of special clips.
Features laying outside in the ground
Another option is a liner electric cable in the ground between the buildings. In this case, there is no fear of ultraviolet radiation, wind, and freezing temperatures. wire stretched on a site does not spoil the view.
But you can run into problems in this case:
- It can damage the wires when digging trenches and pits;
- the cable may be damaged under the pressure of the soil, or due to the activities of the moles.
Rescue again corrugation or tube of polyethylene. In this case, the ends must be carefully sealed. You can also buy a special cable to route it to the thickness of the earth - VBbShv. It has an armored shell of steel, reliably protecting current-carrying conductors.
Lay the cable in the ground should be at a depth of 0.7-1 m at a distance of 0.6 meters from the foundation of the building. If you want to build multiple cables, it is necessary to maintain an interval of 10 cm between them.
Armored cable is worth much more expensive, and not always to be found in stores that sell similar products.