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How many meters should underground power cable laid from the ground?

Number of visits: Date:11/12/2015 09:32:54
Underground cables, that is, the power cable, compared with the common overhead lines, as it is often buried in the ground, it is also known as underground cable. Cable is made by a single or a plurality of mutually insulated outsourcing conductor insulation and protective layer, will be used to transmit power or information from one place to another.
 
 
Unlike overhead high-voltage lines, underground power cables are often laid in cable trench, tunnel, pipe, or indoor. After entering the modern society, because of the tension of urban land, traffic pressure, city construction and other reasons, large cities generally use underground cable transmission mode. Relative to the overhead cable, this underground electric cable has the advantages of small occupation, reliable transmission, strong anti-interference ability etc.
 
Cable classify: power cable, control cable, compensation cable, shielded cable, high temperature cable, computer cable, signal cable, marine cable, etc.
 
Through the underground power cables have wide usage, but how many meters should underground power cable laid off the ground?
 
According to "power engineering cable design specification" 5.3.3 regulations
 
Those laid in non permafrost area, cable buried depth shall comply with the following provisions:
 
(1) the cable jacket shall not be less than 0.3m.
 
(2) cable skin off the surface depth shall not be less than 0.7m; when in the roadway, or underground tillage, should be deeper properly, and should not be less than 1m.
 
Jiapu cable group is the professional wire & cable manufacturer in China, according relevant provisions, Jiapu engineers suggest customers:
 
1, direct buried cable, under the frozen soil layer, In the central plains specified off the ground 0.7 meters;
 
2, if it is protective tube laying, should meet the mechanical strength requirements (such as the protection of steel pipe through the road);
 
3, there is cable channel, without restriction, according to the technology requirements of cable trench to lay;
 
4, with other pipe network cross, parallel, meet the requirements of the relevant distance (such as the distance from the water pipe is above 0.5 meters).
 
If you have any question about electric cable laying, pls contact us by E-mail: sales@jiapucable.com.Our salemen will provide the suitable plan.

TypeInfo: Industry news

Keywords for the information:underground power cable  underground electric cable