CN205542076U - Light -duty power cable for urban rail transit - Google Patents

Abstract

Light -duty power cable for urban rail transit relates to a power cable for the urban rail transit, belongs to cable technical field the utility model discloses a cable core sets gradually slim mica tape coating in the cable core outside, stratum reticulare and 125 DEG C of environment -friendly irradiation thin wall polyolefin oversheath layers are woven to 125 DEG C of environment -friendly irradiation thin wall polyolefin inner liners, earial drainage copper wires, the cable core includes three -strand electric power fibre core, a bare conductor ground wire and a neutral conductor, every electric power fibre core includes respectively that the soft copper wire of the first tin -plating of stranded restraints the hank conductor, restraints the hank conductor outside at the soft copper wire of the first tin -plating of stranded and takes the sintering insulating layer around containing the fluorine complex, the bare conductor ground wire includes the soft copper wire of second tin -plating bundle hank conductor, crowded package ground wire insulating layer outside the hank conductor is restrainted to the soft copper wire of second tin -plating. The utility model discloses security height, long service life, insulating properties is reliable and volume weight is light, is applicable to track traffic circuit power transmission, can also extensively utilize the electric power supply of electric automobile to use.

Description

Light-duty urban track traffic power cable

Technical field

This utility model relates to a kind of urban track traffic power cable, belongs to field of cable technology.

Background technology

Since implementing urban rail transit equipment production domesticization policy, domestic city rail vehicle continues to bring out, and the capability of independent innovation is obviously enhanced.Current National various places start Construction of Urban Rail Traffic climax one after another, and the market demand of domestic Transit Equipment is substantially improved, and the wide market space will pull the manufacturing tremendous development of China's Transit Equipment effectively.

Along with the quickening of Process of Urbanization Construction paces, key city is constantly to ambient radiation, and the urgency of urban rail transit construction is also increasing, and railway transportation equipment industry will enter the golden period of development.China has formed a urban rail transit construction market worldwide largest, with fastest developing speed, brings opportunity to develop and urgent needs for track traffic with defeated, distribution road special cable simultaneously.

For foregoing, company research staff provides the light-duty urban track traffic power cable that a kind of safety is high, insulating properties are superior and volume weight is light.

Utility model content

This utility model purpose is for problem above, it is provided that a kind of private security height, the light-duty urban track traffic power cable that length in service life, insulating properties are reliable and volume weight is light.

This utility model includes cable core, is orderly arranged outside each slim mica tape clad, 125 DEG C of environment-friendly type irradiation thin-section polyolefin inner liners, earial drainage proof copper-wire braided stratum reticulare and 125 DEG C of environment-friendly type irradiation thin-section polyolefin external sheath layers at described cable core；Cladding Duplication >=30% of described slim mica tape clad；Count >=60% of described earial drainage proof copper-wire braided stratum reticulare；Described cable core includes three strands of electric power fibre cores, a bare conductor ground wire and a neutral conductor；Every described electric power fibre core includes that multiply first tin plating soft copper tow twists conductor respectively, the wrapped sintering insulated layer of fluorine-containing composite band outside described multiply first tin plating soft copper tow strand conductor；Described bare conductor ground wire includes the second tin plating soft copper tow strand conductor, twists at the second tin plating soft copper tow and extrudes ground line insulating layer outside conductor.

This utility model is rational in infrastructure simply, manufactures easily, and conductor uses by the sintering insulated layer of wrapped composite band on multiply soft copper silk conductor, have that light weight, external diameter be little, good flexibility, resistant to elevated temperatures requirement；Use bare copper wire as ground wire, reduce the outside diameter of cable, improve durable, good springiness, be unlikely to deform, corrosion-resistant；Extruding inner liner so that structure rounding, cable core the most mutually loosens extruding；Restrictive coating uses 125 DEG C of environment-friendly type irradiation thin-section polyolefin, has external diameter little, has corrosion-resistant, resist bending anti-mechanical external force damage, abrasion-resistant, resistance to greasy dirt, good insulation preformance, the multiple performance such as ageing-resistant.Product is applicable to the transmission of track traffic circuit power, it is also possible to extensively use electric automobile electrical power to use.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Detailed description of the invention

As it is shown in figure 1, this utility model includes cable core, it is orderly arranged outside each 1,125 DEG C of environment-friendly type irradiation thin-section polyolefin inner liners 2 of slim mica tape clad, earial drainage proof copper-wire braided stratum reticulare 3 and 125 DEG C of environment-friendly type irradiation thin-section polyolefin external sheath layers 4 at described cable core；Cladding Duplication >=30% of described slim mica tape clad 1；Count >=60% of described earial drainage proof copper-wire braided stratum reticulare 3；Described cable core includes 5, bare conductor ground wire 6 of three strands of electric power fibre cores and a neutral conductor 7；Every described electric power fibre core 5 includes that multiply first tin plating soft copper tow twists conductor 8 respectively, the wrapped sintering insulated layer of fluorine-containing composite band 9 outside described multiply first tin plating soft copper tow strand conductor 8；Described bare conductor ground wire 6 includes the second tin plating soft copper tow strand conductor 10, twists at the second tin plating soft copper tow and extrudes ground line insulating layer 11 outside conductor 10.

Claims (1)

1. The light-dutyest urban track traffic power cable, it is characterized in that: include cable core, be orderly arranged outside each slim mica tape clad, 125 DEG C of environment-friendly type irradiation thin-section polyolefin inner liners, earial drainage proof copper-wire braided stratum reticulare and 125 DEG C of environment-friendly type irradiation thin-section polyolefin external sheath layers at described cable core；Cladding Duplication >=30% of described slim mica tape clad；Count >=60% of described earial drainage proof copper-wire braided stratum reticulare；Described cable core includes three strands of electric power fibre cores, a bare conductor ground wire and a neutral conductor；Every described electric power fibre core includes that multiply first tin plating soft copper tow twists conductor respectively, the wrapped sintering insulated layer of fluorine-containing composite band outside described multiply first tin plating soft copper tow strand conductor；Described bare conductor ground wire includes the second tin plating soft copper tow strand conductor, twists at the second tin plating soft copper tow and extrudes ground line insulating layer outside conductor.