CN201655352U

CN201655352U - Reinforced type integrated through ground wire

Info

Publication number: CN201655352U
Application number: CN2010201567670U
Authority: CN
Inventors: 晏永祥; 郭振友; 邱国平; 李军民
Original assignee: 晏永祥; 郭振友
Current assignee: Suzhou Nanfang Xinda Bimetallic Material Co., Ltd.
Priority date: 2010-04-09
Filing date: 2010-04-09
Publication date: 2010-11-24
Anticipated expiration: 2020-04-09

Abstract

The utility model relates to a reinforced type integrated through ground wire, comprising a sheath, a plurality of first conductors and second conductors, and an alarming wire, wherein the first conductors and the second conductors are stranded into a composite stranded conductor; the sheath is coated on the outside of the composite stranded conductor. In order to increase the mechanical property of the through ground wire, the first conductor is a copper-coating aluminum conductor, and the second conductor is a copper-coating steel conductor. The composite stranded conductor also comprises the alarming wires which are stranded with the first conductors and the second conductors. The sheath is made from conductive plastics. The utility model has the advantages of good conductive property, mechanical property and corrosion-resistant property, light weight, environment protection, low material cost, and theft prevention.

Description

Reinforced combined through ground wire

Technical field

The utility model relates to a kind of railway combined grounding system all fronts electromechanical equipment that is used for and unifies the cable of ground connection.

Background technology

Railway run-through ground line can make each working point earthing potential of large-scale Railway Electric system be consistent substantially, make the system equipment grounding safety reliable, eliminate because the current potential imbalance that the potential difference between the distinct device causes, therefore realization is widely used among the Railway Electric system effective reliable protection of personnel and equipment.

Traditional railway run-through ground line is the sheath copper cash, promptly coats the plumbous cover of one deck outside copper stranded conductor, the requirement that utilizes plumbous electric conductivity and anti-soil corrosion performance to satisfy ground wire.Sheath copper Through ground wire in use has following problem: plumbous is toxic heavy metal, although its antiseptic property is good, but directly be embedded in underground meeting soil, water are polluted, its manufacture process does not meet environmental requirement in addition, and national environmental protection department and railway authorities have prohibited and continued to use.

At present the part Through ground wire being arranged also is the copper core Through ground wire of alloy sheath, and its shortcoming is that decay resistance is bad; Also have the part Through ground wire to adopt copper core Through ground wire in the prior art, yet because current nonferrous metal price rises suddenly and sharply, copper conductor cost proportion is increasing with conductive plastics surrounding layer.In order to guarantee to satisfy the technical indicator of conductor, can reduce the conductor cost significantly again, therefore seek can instead of copper as conductor and possess the main research and development emphasis that low cost, excellent conductive performance, decay resistance and environment-friendly novel material become Through ground wire.

Summary of the invention

The utility model provides a kind of have excellent conducting performance, decay resistance and Through ground wire with low cost, environmental protection.

For achieving the above object, the technical solution adopted in the utility model is: a kind of Through ground wire, it comprises many first conductors, sheath, the many described first conductor twistings form multiple hinge conductor, described sheath is coated on the described outside of cutting with scissors conductor again, and described first conductor is a copper clad aluminum conductor.

Preferably, for increasing the mechanical performance of Through ground wire, the described conductor that cuts with scissors again also comprises second conductor that hinge in described first conductor, and described second conductor is a copper covered steel conductor.

Preferably, the described conductor that cuts with scissors again also comprises with described first conductor and second conductor and cuts with scissors together alarming line again.

The material of described sheath is a conductive plastics.

Because the technique scheme utilization, the utility model compared with prior art has following advantage:

One, has excellent electric conductivity, mechanical performance and decay resistance;

Two, added the alarming line that is used for the burn out detection function in cable core, when meet accident broken string and when stolen of Through ground wire, alarm circuit will be made prompting;

Three, the copper-clad coating is not easy to separate with aluminum core line, gives the cable thief increase difficulty of disposing of stolen goods, and therefore can play anti-theft effect;

Four, in light weight, be convenient to transportation and installation.Therefore can also reduce labour cost;

Five, the index that meets the environment-friendly cable product, environmental protection test is according to the requirement of ROHS instruction;

Six, adopt aluminum core copper wire and copper-clad steel to save the copper resource, reduced material cost as conductor.

Description of drawings

Accompanying drawing 1 is the sectional view of embodiment one of the present utility model;

Accompanying drawing 2 is the sectional view of embodiment two of the present utility model;

Wherein: 1, sheath; 2, copper clad aluminum conductor; 3, copper covered steel conductor; 4, alarming line.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Shown in accompanying drawing 1 and accompanying drawing 2, a kind of Through ground wire, it comprises sheath 1, many first conductor 2, second conductor 3 and the alarming lines 4 that hinge in together, and many first conductor 2 twistings form multiple hinge conductor, and described sheath 1 is coated on the described outside of cutting with scissors conductor again.

Described first conductor 2 is a copper clad aluminum conductor, and it is to be core body with the fine aluminium material, at the outer one deck copper material that coats of core body, is copper metallurgy of aluminium molecule combination, and it is the electric conducting material that the high-quality electric conductivity of aluminium, copper aluminium high chemical stability are combined as a whole.The satisfactory electrical conductivity that not only has copper, advantage such as contact resistance is little, and also proportion is little, in light weight and cheap, is the best substitute of copper conductor, and its dependability, electric and mechanical integrated performance are no less than copper.

Described second conductor 3 is a copper covered steel conductor, and copper covered steel conductor can increase the tensile strength of entire product and improve mechanical performance.

The material of described sheath 1 is a conductive plastics.Conductive plastics is a class specific function material, and it had not only had the general traditional performance of plastics but also had had the conductivity and the chemical property of metal.The conductive plastics specific insulation that this Through ground wire adopted has been far smaller than the specific insulation of soil, and its mechanical and physical performance also is applicable to outdoor buried laying.

Claims

1. reinforced combined through ground wire, it is characterized in that: it comprises many first conductors (2), second conductor (3), sheath (1), many described first conductors (2) and second conductor (3) twisting form multiple hinge conductor, described sheath (1) is coated on the described outside of cutting with scissors conductor again, described first conductor (2) is a copper clad aluminum conductor, and described second conductor (3) is a copper covered steel conductor.

2. reinforced combined through ground wire according to claim 1 is characterized in that: the described conductor that cuts with scissors again also comprises the alarming line (4) that hinge in described first conductor (2) and second conductor (3).

3. reinforced combined through ground wire according to claim 1 is characterized in that: the material of described sheath (1) is a conductive plastics.