How to choose a cable for outdoor wiring
Wiring outdoors, must be completely safe, and also convenient, all this can ensure the correct cable selection. First you need to connect a power source. If you think that the source of the network will be out of the house, then you need to determine where the cable will go over the ground, which will create many problems for you with the area occupied by the cable and not for the aesthetics of the appearance, and in addition the externally located current will be more susceptible to mechanical damage and more sensitiveto moisture. Or lay it underground, which is much safer, but more difficult to install.
You can of course use a conventional cable with a polymer sheath of PVC plastic, but this is if the distance between the objects is up to 3 m. If the distance is greater, then use an additional wire with tension and clutches, and the wire itself must be grounded in the vicinity of the house. We do not forget that the distance from the ground must be at least 36.5 m above the ground.
If you chose the underground gasket, then you need a cable protected by PVC insulation, soldered with it with a solvent, to create a continuous transition. You can also use an underground cable. It is placed in the trench of the earth for 4.5 m under the courtyard or veranda and at 7.5 m under grass or lawn.
For mounting the gasket on the street it is possible to use aluminum or copper wires. Cable with veins of aluminum is less flexible and usually serves less, but at a much lower price.
Basics of installing a street electric wiring:
- The wire must be tensioned using the main cable.it's just an isolated self-supporting wire.
- The distribution box must be made of metal, well, or non-flammable plastic.
- To protect the current distribution box from rain, snow and temperature differences, it is necessary to mount it under the protective cover. Hence, the wire is below the box from the bottom. Place the joint wires to be sealed.
Street cable channel
Often used SIP or AVK.Connection on the home network usually occurs to a work voltage of 220 or 380V.The most common wire is SIP-4 wire. SIP-4 is a brand of self-supporting insulated wire, for combining electric current circuits by air.
For the underground connection method, use the AVBSH cable, which has aluminum conductors. Well, or else VBShv, having with copper veins. They are used for fixing in the ground, because they are not afraid of underground water. The choice of the veins is assigned to the consumer.
In order to decide to mount the cable on the cables, you need to exclude other types, since the mounting on the cables is used on circuits with a voltage of 1 kV.Wires on the cables are carried out both along, as well as across the buildings, between the walls and near the premises. Wiring with the help of cables is divided into suspension of wires and cables along the cable. Such wire routing can be widely used to mount light and other networks in different environments, both dry and wet. Such a gasket is capable of adapting to a variety of conditions by choosing a cable. As a cable it is possible to use a steel cable or a steel rolled-in fire metalware, painted or treated with zinc.
Cable routing is carried out by the method of industrialization ie.for artisanal enterprises. On the production lines of the companies offer the following functions:
- Produce the main cable
- Strings
- Drawn
- Finish the cable with the
- Throw the wire with the steel cassette
- Make the cable ends
- Attach the cable to the cable:
- Stripes
- Buckles
- Perforated tape with
- clips
- clits Use boxeslight on the main cable or latches on the
- hardware Insert the cable ends
- Connect the ends of the wire and cable
- Weld the wires
When in combinationtnoj route passes many cables you want to use trays.
