CN201904144U

CN201904144U - Dedicated shock-proof strengthened DC cable for rail transit

Info

Publication number: CN201904144U
Application number: CN2011200006315U
Authority: CN
Inventors: 杨素华; 钱晓娟; 苏甫才
Original assignee: WUXI HU'AN ELECTRONIC WIRE AND CABLE CO Ltd
Current assignee: Shenhuan Cable Technology Co.,Ltd.
Priority date: 2011-01-04
Filing date: 2011-01-04
Publication date: 2011-07-20
Anticipated expiration: 2021-01-04

Abstract

The utility model provides a dedicated shock-proof strengthened DC cable for rail transit. A conductor, an insulating layer and a sheath are comprised; an EPR ( Ethylene Propylene Rubber) insulating layer is arranged outside the conductor; a shock-proof layer is arranged outside the EPR insulating layer; and a water-resisting layer, a strengthening layer, and an HFFR (Halogen Free Flame Retardant) elastic body external protecting layer are arranged outside the shock-proof layer sequentially. The DC cable has the advantages of good insulating property, good shock-proof performance, good flexibility, flame retardancy, water resistance, pressure resistance, mouse and termite prevention, long service life, etc., and is suitable for being laid in a small space where the environment is harsh with violent shock.

Description

The reinforced direct current cables of the special-purpose antidetonation of a kind of track traffic

Technical field

The utility model belongs to a kind of cable, particularly a kind of direct current cables.

Background technology

Along with China's rapid economic development, urban modernization construction and people's rhythm of life is constantly accelerated, present transportation condition is had higher requirement, the traffic in city will be satisfied present people's go off daily and normal life requirements of one's work, will provide and extend in all direction, convenient fast service, urban track traffic is the major measure that traffic environment is improved in present international big city, China uses for reference foreign experience in each big and medium-sized cities, builds rail rapid transit and has been gesture in the ascendant.At present, subway light rail is being built or continued in a lot of cities such as Beijing, Shanghai, Tianjin, Chongqing, Dalian and Guangzhou all, rail line provides a lot of convenience for everybody live and work, has also improved efficient, satisfies the needs of the efficient fast work rhythm of life of people.Development of urban rail traffic also provides business opportunity for cable industry, but because the track traffic particularity of cable laying environment: densely populated, the southern area that particularly compares moist and the many ants of many mouse, the more general direct current cables of existing track generally adopts ethylene-propylene rubber as insulating material, wrapped low-smoke non-halogen flame-retardant band outside insulated wire cores, vertical alclad plastic composite strip, oversheath extrudes termite-resistant rodent-resistant low-smoke halogen-free flame-retardant sheath material structure, make cable have certain waterproof, fire-retardant, low smoke and zero halogen, the termite-resistant rodent-resistant performance, but along with subway, the development of light rail, performance requirement to product is more and more higher, especially there is product in the adverse circumstances of sharp pounding in the narrow and place of laying, space that is laid in, and the product of existing structure can not satisfy these integrated environments.

Summary of the invention

Goal of the invention: the purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and for a kind of good insulation preformance is provided, anti-seismic performance is good, and softness is good, Halogen, fire-retardant, block water, the environment-friendly type direct current cables of resistance to compression, termite-resistant rodent-resistant.

Technical scheme: in order to solve the problems of the technologies described above, the utility model has adopted a kind of like this direct current cables, comprise closing and constitute conductor by many soft copper skein silks, outside conductor, there is one deck ethylene propylene rubber insulated, ethylene propylene rubber insulated layer is outer an antidetonation layer, sets gradually water blocking layer, reinforced layer, halogen-free flame retarding elastomer outer jacket outside the antidetonation layer.

Conductor described in the utility model adopts the 5th class formation.

Antidetonation layer described in the utility model is that polyurethane material extrudes and forms.

Reinforced layer described in the utility model constitutes for the embossing copper sheath.

Beneficial effect: the utlity model has good insulation preformance, anti-seismic performance is good, softness is good, Halogen, fire-retardant, block water, advantage such as resistance to compression, termite-resistant rodent-resistant, life-span are long, be to be applicable to that there is the reinforced special DC cable of antidetonation in the adverse circumstances of sharp pounding in the narrow and place of laying, the space that is laid in.

Description of drawings

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

Embodiment

As shown in Figure 1, the utility model discloses the reinforced direct current cables of the special-purpose antidetonation of a kind of track traffic, comprise closing and be configured conductor 1 by many soft copper skein silks, one deck ethylene propylene rubber insulated 2 is arranged outside described conductor 1, outside described ethylene propylene rubber insulated layer 2, an antidetonation layer 3 is arranged, outside described antidetonation layer 3, set gradually water blocking layer 4, reinforced layer 5, halogen-free flame retarding elastomer outer jacket 6; Described antidetonation layer 3 is polyurethane antidetonation layers, makes product have good anti-vibration, anti-fatigue performance, and have the Halogen performance, satisfied the demand of environment for use; Constitute for the embossing copper sheath at described vertical reinforced layer 5, product is not only had block water, the performance of protection against rodents insect pest, it is narrow and small that other track traffic is generally laid the space with cable, damage cable during construction easily, reinforced layer 5 makes cable avoid mechanical damage, improved mechanical performance of products, outer jacket 6 adopts halogen-free flame retarding elastomer, guaranteed the fire resistance of cable, make cable in fire hazard environment, not only oneself have fire resistance, and do not discharge dense smoke and toxic gas, delayed rescue time, make things convenient for fire fighter's rescue, reduced the loss of lives and properties.

Claims

1. the reinforced direct current cables of the special-purpose antidetonation of a track traffic, comprise by many soft copper skein silks and close the conductor (1) that constitutes, it is characterized in that: one deck ethylene propylene rubber insulated (2) is arranged outside described conductor (1), outside described ethylene propylene rubber insulated layer (2), an antidetonation layer (3) is arranged, outside described antidetonation layer (3), set gradually water blocking layer (4), reinforced layer (5), halogen-free flame retarding elastomer outer jacket (6).

2. the reinforced direct current cables of the special-purpose antidetonation of track traffic according to claim 1, it is characterized in that: described conductor (1) adopts the 5th class formation.

3. the reinforced direct current cables of the special-purpose antidetonation of track traffic according to claim 1, it is characterized in that: described antidetonation layer (3) forms for polyurethane material extrudes.

4. the reinforced direct current cables of the special-purpose antidetonation of track traffic according to claim 1 is characterized in that: described reinforced layer (5) constitutes for the embossing copper sheath.