Pipe-penetrating laying method of cable
A technology of cable and pipe penetration, applied in the direction of cable laying equipment, etc., can solve the problems of cable metal sheath deformation, cable outer sheath damage, affecting cable insulation performance or vacuum performance, etc., and achieve the effect of avoiding damage
Inactive Publication Date: 2019-06-14
SHANGHAI ELECTRIC CABLE RES INST
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Problems solved by technology
When the weight of the cable is large and the pipe required to pass through the pipe is long, the traction force required to pull the cable is very large, which often causes damage to the outer sheath of the cable or deformation of the metal sheath of the cable, thus affecting the insulation performance or vacuum of the cable. Performance (for cables with vacuum insulation, such as low-temperature superconducting cables)
[0003] The current laying method usually adopts the method of laying the cable directly through the pipe, or coating the surface of the cable to reduce the friction. Contact, making the cable subject to friction and prone to damage
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[0029] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0030] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper"...
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The invention relates to a pipe-penetrating laying method of a cable. During cable laying by the pipe-penetrating laying method of the cable, a protection layer is coated on an outer surface of the cable, the protection layer and the cable are fixed, thus, the cable is pulled to a pipeline by a traction device, the protection layer is in contact with the pipeline, the damage to the cable due to direct fiction of the cable and the pipeline is prevented, and the protection layer can have a protection effect on the cable. By the pipe-penetrating laying method of the cable, damage to the cable laid in a pipe penetrating way can be prevented.
Description
technical field [0001] The invention relates to a method for laying cables through pipes. Background technique [0002] With the development of the city, the overhead lines are gradually changed to be laid underground, and the cables are more commonly laid in pipes and tunnels. When the weight of the cable is large and the pipe required to pass through the pipe is long, the traction force required to pull the cable is very large, which often causes damage to the outer sheath of the cable or deformation of the metal sheath of the cable, thus affecting the insulation performance or vacuum of the cable. Performance (for cables with vacuum insulation, such as low-temperature superconducting cables). [0003] The current laying method usually adopts the method of laying the cable directly through the pipe, or coating the surface of the cable to reduce the friction. contact, making the cable subject to friction and prone to damage. Contents of the invention [0004] In view o...
Claims
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IPC IPC(8): H02G1/08
Inventor 张智勇田祥陆小虹黄逸佳喻志广
Owner SHANGHAI ELECTRIC CABLE RES INST