CN206546741U - A kind of light rail or subway full-shield multi-core controlled cable - Google Patents

Abstract

The utility model discloses a kind of light rail or subway full-shield multi-core controlled cable, the cable include successively from inside to outside even number form a team two-by-two stranding separated-shielding line to, polyester band layer, the total screen layer of metal and integrated protection jacket layer；Each separated-shielding line to including monomer insulated conductive wires core, the metal sub-shield of two mutual strandings successively from inside to outside；Each monomer insulated conductive wires core includes central inner conductor, extruded in the insulating barrier on the central inner conductor surface.Light rail or subway full-shield multi-core controlled cable provided by the utility model, not only possesses excellent interference free performance, and with every excellent properties such as softness, high fire-retardance, water-fast, oil resistant, wear-resisting, ageing-resistant, resistance to high/low temperature, weatherability, it is safe and environment-friendly.

Description

A kind of light rail or subway full-shield multi-core controlled cable

Technical field

The utility model belongs to technical field of electric wires and cables, and in particular to a kind of light rail or subway are controlled with full-shield multicore Cable.

Background technology

Have that freight volume is big, speed fast based on urban track traffic, safety, on schedule, environmental protection, save the energy and land used etc. Feature, countries in the world are increasing its development process.Moreover, in recent years, China's Development of China's Urbanization is very fast, national urbanization rate Will be more than 60%, huge population will pour in city, it is meant that public transport need to bear more freight volumes, coming years city rail Road traffic will be in the situation of supply-less-than-demand.China has recognized that the fundamental solution for the traffic problems for solving city is preferentially The supporting urban rail subway of public transport between Development of Urban, because urban rail subway is significantly improve traffic carrying ore structure ability one Important way is planted, effectively basic guarantee can be provided to alleviate traffic congestion.

Increasingly serious with urban traffic blocking, track traffic development in domestic city will further raise speed, Chinese city Track traffic development was with 15 years developed country's development courses of 100 years of having passed by, and the technology and equipment of track traffic is also from original Dependence on import move towards the light rail underground railway vehicle peace of autonomy-oriented, Development in Domestic, particularly China nearly period designed, designed exploitation The full speed of service reaches 420 kilometers and has become reality, it is contemplated that to the year two thousand twenty, the track traffic passenger traffic volume in National urban will exceed 20000000000 person-times, this make it that the market prospects that track is equipped are huge, and warp-wise perfects the development of industry chain direction.

However, because traditional supporting electric wire leans on external import, and the signal shielding of these electric wires substantially Property etc. many performances there is certain defect, be difficult to the demand for development for meeting modern railway transportation technology, therefore more difficult With the supporting demand for the light rail underground railway vehicle for adapting to China's independent research, it is necessary to update and improve.

Utility model content

The purpose of this utility model is that there is provided a kind of light rail or subway full-shield are many in order to overcome prior art defect Core controls cable, and it not only possesses excellent interference free performance, and with softness, high fire-retardance, water-fast, oil resistant, it is wear-resisting, resistance to always The items excellent properties such as change, resistance to high/low temperature, weatherability, it is safe and environment-friendly.

In order to solve the above technical problems, the technical solution of the utility model is：

A kind of light rail or subway full-shield multi-core controlled cable, it is characterised in that：

The cable include successively from inside to outside even number form a team two-by-two stranding separated-shielding line to, polyester band layer, gold Belong to total screen layer and integrated protection jacket layer；

Each separated-shielding line to including monomer insulated conductive wires core, the gold of two mutual strandings successively from inside to outside Belong to sub-shield；Each monomer insulated conductive wires core includes central inner conductor, extruded in the central inner conductor surface Insulating barrier.

Further, the quantity of the separated-shielding line pair is 2.

Further, the central inner conductor is by the soft copper conductor of many tin plating soft naked thin copper wire bundle strands.

Further, the insulating barrier is extruded by electron beam irradiation cross-linking low-smoke halogen-free polyolefine material and formed.

Further, the polyester band layer is overlapping puts up around the outside for being wrapped in each separated-shielding line pair.

Further, the metal sub-shield is made up of tin plating soft naked thin copper wire.

Further, the metal sub-shield by canoe or weaving manner to be made.

Further, the total screen layer of the metal is made up of the tin plating soft naked thin copper wire of five classes.

Further, the total screen layer of the metal by canoe or weaving manner to be made.

Further, the integrated protection jacket layer is extruded by electron beam irradiation cross-linking low-smoke halogen-free polyolefine material and formed.

Compared with the prior art, the beneficial effects of the utility model are：

(1) light rail or subway full-shield multi-core controlled cable that the utility model is provided, do to traditional cable structure Very big improvement, provided with metal sub-shield and the total screen layer double-layer shielding structure of metal, plays full-shield effect, so that effectively Ground improves the antijamming capability of product；Moreover, the structure based on novel and unique, the cable have softness, high fire-retardance, it is water-fast, The items excellent properties such as oil resistant, wear-resisting, ageing-resistant, resistance to high/low temperature, weatherability, it is safe and environmentally friendly.

(2) light rail or subway full-shield multi-core controlled cable that the utility model is provided, integrally bending radius is specially 4 × OD (fixed installation), 8 × OD (mobile install), it is smaller than traditional cable product bending radius (generally 15 × OD), i.e., it is curved Qu Xingneng is more superior, fully meets international rail traffic vehicles standard BS 6853-1a, DIN 5510-21-4, NFF 16- The requirement such as 101F0, can more meet the control traction of the modern light rail underground railway vehicle of China's independent development and the demand installed.

(3) light rail or subway full-shield multi-core controlled cable that the utility model is provided, simple and compact for structure, prepares work Skill is ripe, helps to reduce manufacturing cost, meets CHINESE INDUSTRIES policy.

In summary, the light rail or subway that the utility model is provided can be met well with full-shield multi-core controlled cable The supporting demand of the rail traffic vehicles of China's independent research, so as to traditional imported product outside effectively surrogate, is working as There is very high market value in the city rail traffic technical field of modern high speed development.

Brief description of the drawings

Fig. 1 is the overall structure signal of a kind of light rail described in the utility model or subway full-shield multi-core controlled cable Figure；

Fig. 2 is the separated-shielding line pair of a kind of light rail described in the utility model or subway full-shield multi-core controlled cable Structural representation.

In figure：

1st, separated-shielding line pair；11st, monomer insulated conductive wires core；111st, central inner conductor；112nd, insulating barrier；12nd, metal point Screen layer；2nd, polyester band layer；3rd, the total screen layer of metal；4th, integrated protection jacket layer.

Embodiment

Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new Type can be implemented with the other modes for being much different from this description, and those skilled in the art can be without prejudice to the utility model Similar popularization is done in the case of intension, therefore the utility model is not limited by following public specific embodiment.

Embodiment 1

In order to solve problem of the prior art, a kind of light rail or subway full-shield multicore control electricity are present embodiments provided Cable, as shown in Figure 1, 2：

The cable include successively from inside to outside even number form a team two-by-two stranding separated-shielding line to 1, polyester band layer 2, The total screen layer 3 of metal and integrated protection jacket layer 4, wherein, the total screen layer 3 of metal not only can fully play shielding external electromagnetic waves Disturb to avoid the effect that its produces internal function core crosstalk, it is ensured that internal each separated-shielding line can preferably work to 1 Make, and itself or a neutrality core well, ground wire can be played draw connecing so that cable has more preferable earthing effect, this Outside, it is also prevented from bump injury of the external force to internal layer, it is ensured that internal each function wire preferably works.

According to the design requirement of urban rail electric power supply system for subway, each separated-shielding line includes two successively from inside to outside to 1 The monomer insulated conductive wires core 11 of mutual stranding, metal sub-shield 12, to better assure that monomer insulated conductive wires core 11 is equal Not by outside electromagnetic interference；Each monomer insulated conductive wires core 11 includes central inner conductor 111, extruded in central inner conductor The insulating barrier 112 on 111 surfaces.

According to the transmission design requirement of light rail subway, in the present embodiment, separated-shielding line is 2 to 1 quantity, certainly, The utility model is not limited to this.

In the present embodiment, in accordance with the standards of IEC60228/VDE 0295, central inner conductor 111 is tin plating soft naked by many The soft copper conductor of thin copper wire bundle strand, so as to substantially ensure that the anticorrosive and oxidation resistance of conductor so that the cable is produced Product have more durability.

In the present embodiment, insulating barrier 112 is extruded by electron beam irradiation cross-linking low-smoke halogen-free polyolefine material and formed.

In the present embodiment, polyester band layer 2 is overlapping puts up around the outside for being wrapped in each separated-shielding line to 1.Polyester material has There are insulation, fire resistance, belong to high-temperature resistant material, so that cable product has excellent fire-proof function；2, polyester band layer To the effect that tightens, isolation outside 3 pairs of inside of the total screen layer of metal each separated-shielding line to 1 frictionally damage effect and The effect of equilibrium stress, moreover, because polyester band layer 2 is put up wrapped to be made by overlapping, being filled out inside its stranding without addition Filling thing just can make internal each separated-shielding line to 1 firm rounding, reduce the external diameter of cable finished product, save material, and can be really Protect internal each separated-shielding line has good radiating effect to 1.

In the present embodiment, metal sub-shield 12 is made up of tin plating soft naked thin copper wire, and the total screen layer 3 of metal is plated by five classes The soft naked thin copper wire of tin is made, and antijamming capability is extremely strong.

In the present embodiment, metal sub-shield 12 and the total screen layer 3 of metal (are such as twined in the shape of a spiral by canoe Around) or weaving manner to be made.Because canoe has directionality, shielding character changes when cable product is bent, But many advantages, such as it has small bending radius, soft wire rod and low processing cost, therefore go for low frequency shielding； Because weaving manner is non-directional, shield effectiveness is splendid, and shielding character is unchanged when cable product is bent, therefore goes for Radioshielding.In other words, the utility model both can be used for low frequency shielding, radioshielding be can be used for again, flexibility is strong.

In the present embodiment, integrated protection jacket layer 4 is extruded by electron beam irradiation cross-linking low-smoke halogen-free polyolefine material and formed.

After being crosslinked due to low-smoke halogen-free polyolefin material through electron beam irradiation, the vertical structural generation section principal deformation of its original Change, form network structure, physical and mechanical properties is greatly improved, such as its short-circuit temperature is up to 280 DEG C, substantially exceeds biography Unite the temperature resistant range (up to 90 DEG C) of product, so that the waterproof of the cable described in the present embodiment, heatproof, weather-proof, anti-scratch Mill, cut resistant, fire resisting, resistance to combustion, ageing-resistant, smokeless many performances such as nontoxic are further enhanced, and can be well adapted for me State south, Beihuan border and climate difference change.

The utility model is not limited to above-mentioned embodiment, if do not taken off to various changes or modification of the present utility model From practical range of the present utility model.All equivalent changes made according to present utility model application scope and improvement etc., all should belong to Within patent covering scope of the present utility model.

Claims (10)

1. a kind of light rail or subway full-shield multi-core controlled cable, it is characterised in that：

The cable include successively from inside to outside even number form a team two-by-two stranding separated-shielding line it is total to, polyester band layer, metal Screen layer and integrated protection jacket layer；

Each separated-shielding line divides including the monomer insulated conductive wires core of two mutual strandings, metal successively from inside to outside Screen layer；Each monomer insulated conductive wires core includes central inner conductor, extruded in the exhausted of the central inner conductor surface Edge layer.

2. light rail according to claim 1 or subway full-shield multi-core controlled cable, it is characterised in that：The separated-shielding The quantity of line pair is 2.

3. light rail according to claim 1 or 2 or subway full-shield multi-core controlled cable, it is characterised in that：In described Intracardiac conductor is by the soft copper conductor of many tin plating soft naked thin copper wire bundle strands.

4. light rail according to claim 1 or 2 or subway full-shield multi-core controlled cable, it is characterised in that：It is described exhausted Edge layer is extruded by electron beam irradiation cross-linking low-smoke halogen-free polyolefine material and formed.

5. light rail according to claim 1 or 2 or subway full-shield multi-core controlled cable, it is characterised in that：It is described poly- Ester band layer is overlapping to be put up around the outside for being wrapped in each separated-shielding line pair.

6. light rail according to claim 1 or 2 or subway full-shield multi-core controlled cable, it is characterised in that：The gold Category sub-shield is made up of tin plating soft naked thin copper wire.

7. light rail according to claim 6 or subway full-shield multi-core controlled cable, it is characterised in that：The metal point Screen layer is by canoe or weaving manner to be made.

8. light rail according to claim 1 or 2 or subway full-shield multi-core controlled cable, it is characterised in that：The gold Belong to total screen layer to be made up of the tin plating soft naked thin copper wire of five classes.

9. light rail according to claim 8 or subway full-shield multi-core controlled cable, it is characterised in that：The metal is total Screen layer is by canoe or weaving manner to be made.

10. light rail according to claim 1 or 2 or subway full-shield multi-core controlled cable, it is characterised in that：It is described comprehensive Conjunction protection jacket layer is extruded by electron beam irradiation cross-linking low-smoke halogen-free polyolefine material to be formed.