CN201191520Y

CN201191520Y - Copper coated aluminum dual-core flame-retardant refractory flexible electric cable

Info

Publication number: CN201191520Y
Application number: CNU2008200342282U
Authority: CN
Inventors: 王柏兴; 钱俊; 张喜生; 张兴飞; 刘焱鑫; 周建栋; 秦海峰
Original assignee: Zhongli Technology Group Co Ltd
Current assignee: Zhongli Technology Group Co Ltd
Priority date: 2008-04-17
Filing date: 2008-04-17
Publication date: 2009-02-04
Anticipated expiration: 2018-04-17

Abstract

The utility model relates to a copper-clad two-core flame retardant fire-resisting flexible cable, which belongs to the technical field of wires and cables, and comprises a pair of conductor wire cores, an insulation layer, a cable glass fiber tape and a sheath, wherein each conductor wire core is wrapped by a mica tape, and a glass fiber tape is wrapped around the mica tape, the insulation layer extrudes the pair of conductor wire cores together, the cable glass fiber tape is wrapped around the insulation layer, the sheath is extruded around the cable glass fiber tape, the conductor wire cable is formed by twisting conductor monofilaments, each conductor monofilament is formed by an aluminum conductor and a copper cladding wrapped around the aluminum conductor, the diameter of the conductor monofilament is 0.2-1.2mm, the diameter of the aluminum conductor is 0.18439-1.1063mm, and the thickness of the copper cladding is 0.007805-0.04685mm. The utility model has the advantages that as the diameter of the conductor monofilament is reasonably selected, the processing is convenient, and obtained finished cables are fine in flexibility so as to facilitate construction and laying, and further, the reasonable integral structure can perfectly protect the conductor wire cores, thereby securing usage.

Description

Copper coated aluminum dual-core flame-retardant refractory flexible electric cable

Technical field

The utility model belongs to technical field of electric wires and cables, is specifically related to a kind of copper coated aluminum dual-core flame-retardant refractory flexible electric cable.

Background technology

Notion for copper cover aluminum, electric wire production firm is not strange, that is exactly the aluminium that the structure that will constitute each conductive monofilament of conductor wire core is processed into outer field copper and internal layer, can save the copper that belongs to strategic resource in large quantities like this, can make the maximum function of copper performance again.For example being no lack of before in the Chinese patent literature at document has report, for example: Chinese patent Granted publication CN2881898 introduce the copper cover aluminum city communication cable, the disclosed copper cover aluminum communication cable of CN2881899, the copper clad aluminum conductor communication cable that CN200979818Y recommends, the copper clad aluminum conductor that CN101060024A is public all or the electric wire of copper covered steel conductor, the bimetallic conductor monitoring type earth cable that CN2829026Y discloses, a kind of high strength copper-coated aluminum electric wire/cable that CN2906844Y discloses, also just like CN1758384Y, CN201004349Y, CN2919466Y, CN101086906Y, CN200986831Y, CN2348466Y, CN2904222Y, CN200976298Y, CN200969249Y, CN2891231Y, CN2879357Y or the like has all related to aluminium conductor has been coated copper clad outward, and purpose all is in order to save the copper resource.

But, above-mentioned arbitrary patented technology scheme all not to the conductor structure that constitutes by copper cover aluminum for example diameter disclose, and the applicant thinks, can diameter that the reasonable selection conductor can produce bigger influence for the serviceability of finished cable, for example when diameter is excessive, cable is hardened, be unfavorable for laying; Otherwise too small when diameter, then easily broken the and difficulty of processing of conductive monofilament enlarges markedly, even can't process at all.

Summary of the invention

Task of the present utility model be to provide a kind of flexibility excellent and help laying, handling ease and copper coated aluminum dual-core flame-retardant refractory flexible electric cable safe in utilization.

Task of the present utility model is finished like this, a kind of copper coated aluminum dual-core flame-retardant refractory flexible electric cable, and it comprises pair of conductive core 1, each conductor wire core 1 outer mica tape 2 that has been wrapped, and the mica tape 2 outer glass fiber tapes 3 that are surrounded with; One is used for pair of conductive core 1 jointly is extruded in together insulating barrier 4; One wrapped stranding glass fibre belt 5 outside insulating barrier 4; Be extruded in the restrictive coating 6 outside the stranding glass fibre belt 5, described conductor wire core 1 constitutes by conductive monofilament 11 is stranded, every conductive monofilament 11 is made of aluminium conductor 111 and the copper clad 112 that are coated on outside the aluminium conductor 111, the diameter of described conductive monofilament 11 is 0.2～1.2mm, wherein: the diameter of aluminium conductor 111 is 0.18439～1.1063mm, and the thickness of copper clad 112 is 0.007805～0.04685mm.

The cross sectional shape semicircular in shape of conductor wire core 1 described in the utility model.

The cross sectional shape of conductor wire core 1 described in the utility model is rounded.

The material of insulating barrier 4 described in the utility model and restrictive coating 6 is a low-smoke halogen-free polyolefin.

The sectional area of conductor wire core 1 described in the utility model is 1.5～300mm ²

The utility model has been owing to made choose reasonable to the diameter of conductive monofilament 11, and is therefore not only easy to process but also make resulting finished cable have good flexibility and be convenient to construction and lay; Can play a good protection to conductor wire core 1, therefore safe in utilization.

Description of drawings

Fig. 1 is the cross sectional representation of a specific embodiment structure of the present utility model.

Fig. 2 is the cross sectional representation of another specific embodiment structure of the present utility model.

Fig. 3 is the enlarged diagram of the cross section of conductive monofilament 11 of the present utility model.

Embodiment

Embodiment 1:

Ask for an interview Fig. 1, provided a pair of shape conductor wire core 1 of semicircular in shape each other, mica tape 2 is wrapped outside each conductor wire core 1, wrapped glass fiber tape 3 outside mica tape 2, the extrusion process of habitually practising with wires and cables industry outside glass fiber tape 3 squeezes establishes the insulating barrier 4 that material is a low-smoke halogen-free polyolefin, wrapped stranding glass fibre belt 5 outside insulating barrier 4, the last extrusion process of similarly habitually practising with wires and cables industry outside stranding glass fibre belt 5 extrudes the restrictive coating 6 that material is a low-smoke halogen-free polyolefin.By shown in Figure 1, a pair of cross sectional shape is 1 pair of postpone formation of the conductor wire core circle on the whole of semicircular in shape separately, by mica tape 2 pair of conductive core 1 jointly is bundled together.

Ask for an interview Fig. 3, the conductive monofilament 11 that constitutes conductor wire core 1 of the present utility model has some, and it is stranded mutually, copper clad 112 outside aluminium conductor 111 constitutes every conductive monofilament 11 by aluminium conductor 111 and coating (coating processes), the diameter of conductive monofilament 11 is 0.2～1.2mm, wherein: the diameter of aluminium conductor 111 is 0.18439～1.10635mm, and the thickness of copper clad 112 is 0.007805～0.04685mm, the cross section that is to say copper clad 112 accounts for 15 ± 2% of whole conductive monofilament 11, and all the other are the cross section of aluminium conductor 111.

Embodiment 2:

The cross sectional shape of pair of conductive core 1 is processed into circle, because the rounded each other conductor wire core 1 of a pair cross-section can produce distortion when being coated by stranding glass fibre belt 5, therefore can be referred to as gasket for packing 7 fillings of mineral wool rope by means of custom, to guarantee the rounded stranding that promptly is beneficial to of the cross sectional shape that contracts out by stranding glass fibre belt 5.All the other are with the description to embodiment 1.

Application examples 1-18:

By embodiment 1 of the present utility model or 2 described conductor wire cores 1 preferably but the cross section of 18 kinds of specifications that definitely are not limited to by shown in the following table.

Claims

1, a kind of copper coated aluminum dual-core flame-retardant refractory flexible electric cable is characterized in that it comprises pair of conductive core (1), the outer mica tape (2) that has been wrapped of each conductor wire core (1), and the outer glass fiber tape (3) that is surrounded with of mica tape (2); One is used for pair of conductive core (1) jointly is extruded in together insulating barrier (4); One wrapped stranding glass fibre belt (5) outside insulating barrier (4); Be extruded in the outer restrictive coating (6) of stranding glass fibre belt (5), described conductor wire core (1) is by the stranded formation of conductive monofilament (11), every conductive monofilament (11) is by aluminium conductor (111) and be coated on outer copper clad (112) formation of aluminium conductor (111), the diameter of described conductive monofilament (11) is 0.2～1.2mm, wherein: the diameter of aluminium conductor (111) is 0.18439～1.1063mm, and the thickness of copper clad (112) is 0.007805～0.04685mm.

2, copper coated aluminum dual-core flame-retardant refractory flexible electric cable according to claim 1 is characterized in that the cross sectional shape semicircular in shape of described conductor wire core (1).

3, copper coated aluminum dual-core flame-retardant refractory flexible electric cable according to claim 1 is characterized in that the cross sectional shape of described conductor wire core (1) is rounded.

4, copper coated aluminum dual-core flame-retardant refractory flexible electric cable according to claim 1 is characterized in that the material of described insulating barrier (4) and restrictive coating (6) is a low-smoke halogen-free polyolefin.

5, according to claim 1 or 2 or 3 described copper coated aluminum dual-core flame-retardant refractory flexible electric cables, the sectional area that it is characterized in that described conductor wire core (1) is 1.5～300mm ²