6 Ways of Laying Power Cables

Power cable insulation in how thick also need to be laid intact, in the road, engineering construction, power cable buried about 0.7 meters deep, generally common in the use of cement cover to protect the power cable, after laying but also to repair the road, this method is less costly. Poor quality, if you want to lay the power cable more perfect, its method has 6.

1、Cable trench way

The cable trench dug out under the pavement, put the cover, excavation construction, after the line only need to open the cover, more convenient, cable trench is also divided into two sides of the bracket cable trench and single-sided bracket cable trench; 1m deep, 2m wide, single-sided bracket cable trench 1.65m deep, 1.5m wide, generally including 12 cables. This can of course be increased or decreased depending on the specific situation. The advantage of this approach is that the cables are easier to release and easier to maintain. After one excavation, the cables can be laid one after the other, which is more effective, but slightly more expensive.

2、Cable tunnel method

In many cables, cable tunnels should be constructed, the size of which can be arranged according to the construction conditions and needs. The tunnels are divided into round top tube type (general inner diameter 2-6cm), cast-in-place method (general internal size: 2m wide, 2.88m deep); about 36 cables can be placed. The pipe jacking method does not require excavation of the road, the cast-in-place method requires excavation of the road and the top of the tunnel is up to 2 metres deep. This way is the most expensive, the advantage is that the construction of the cable is convenient, the number of roots.

3、Hanging cable way

Set up the laying method power cable rack generally using galvanized steel strand suspension. When the weight of the power cable is less than 2 tons per kilometre, the use of 35 square millimetres of steel wire, stranded 50 square millimetres of steel wire less than 3.99 tons per kilometre. The installation of fixed cables should take into account the following points:

1. On roads, power cables shall be suspended at a height of not less than 5.5m, and at a height of not less than 7.5m when suspended on railways.

2. Suspended cables are often used in buildings or related more places, should prevent direct contact with buildings or contact with trees.

3.3KV above the cable sheath should be reliably grounded, otherwise it can be regarded as an insulated line; can not be installed by means of hanging wire

4. The cable is usually hung on a sling, or can be tied to a pole. Armored cables are fixed every one metre. If it is unarmored armored cable, the hook distance will be shortened, generally hanging at 0.6m.

A well laid power cable is safer for future use, not only to prevent gnawing by wild animals, but also to avoid damage by unknowing farmers' tools in their daily work, and to prevent oxidation and bad air attacks.

Well, the above is the introduction of the "6 ways of laying electric power", I hope it can help you! Please continue to pay attention to XSD Cable, to learn more information.