CN203225133U

CN203225133U - Flame-retardant waterproof soft type aluminum alloy core pre-branched cable for buildings

Info

Publication number: CN203225133U
Application number: CN 201320199150
Authority: CN
Inventors: 郭建明; 苏运成; 赵影; 於国良; 周俊民; 侯科峰
Original assignee: ANHUI HEDIAN PUHUA ELECTRIC CO LTD
Current assignee: Haake Science and Technology Ltd. of Shenzhen
Priority date: 2013-04-19
Filing date: 2013-04-19
Publication date: 2013-10-02
Anticipated expiration: 2023-04-19

Abstract

A flame-retardant waterproof soft type aluminum alloy core pre-branched cable for buildings includes a trunk cable, a branch cable and a connecting body; the branch cable is electrically connected with the trunk cable in the connecting body; the cable trunk and the branch cable comprise a plurality of trunk insulation wire cores and a plurality of branch insulation wire cores respectively; corresponding trunk insulation wire cores are electrically connected with corresponding branch insulation wire cores through connectors in the connecting body; and conductors of the trunk insulation wire cores and the branch insulation wire cores are mode of aluminum alloy conductors.

Description

Building fire-resistant waterproof soft type aluminium alloy core pre-branched cable

Technical field

The utility model is related to a kind of building fire-resistant waterproof soft type aluminium alloy core pre-branched cable, particularly flame-retardant flexible type cable, for building supporting electric power system connection.

Background technology

China's rapid economic development in recent years, Urbanization Construction is accelerated, development of real estate is swift and violent, and can be used for build soil it is fewer and feweri, therefore skyscraper rapidly stands in great numbers, and the structure of low-voltage distribution system is more complicated in modern high-rise building, thus requirement to the reliability and economy of distributiong main also more and more higher. The shortcomings of there is big line arrangement space, long construction period, technical conditions high, body high cost in the plug type bus duct machine wiring mode for originally using, limit it and use development space, and aluminium cable is too poor because of creep-resistant property, often result in joint looseness, contact resistance increases, increase accident odds, thus be not suitable for being used as branch cable. Current branch cable generally uses copper cable; expensive, weight is big, bending property is bad, construction is inconvenient; and at present pre-branched cable joint layer by layer between amalgamation it is bad; waterproof, humidity resistance be not good enough; often occur to produce oxidation and cause the accident of contact resistance increase and cable core short-circuit between conductors after copper conductor makes moist; influence the security and service life of cable; other protective layer fire resistance is bad; and dense smoke and toxic gas generation are often accompanied by, it is unfavorable for the escape of personnel and the control of the condition of a disaster during fire.

The content of the invention

The purpose of this utility model is to overcome above-mentioned not enough problem, there is provided a kind of building for building fire-resistant waterproof soft type aluminium alloy core pre-branched cable, simple structure, weight are light, flexibility is good, cheap, safe and reliable, water proof fire retardant effect is good.

The technical scheme that the present invention is used to achieve the above object is: building fire-resistant waterproof soft type aluminium alloy core pre-branched cable, including main cable, branch cable and connector, branch cable is electrically connected on main cable in connector, main cable and branch cable include multiple trunk insulated wire cores and multiple branches insulated wire cores respectively, corresponding trunk insulated wire cores and branch's insulated wire cores are electrically connected in connector by connector, wherein, the conductor of trunk insulated wire cores and branch's insulated wire cores uses aluminium alloy conductor.

Wherein, the connector is c-type wire clamp, and it passes through to be interrupted closed peeling, crimping and trunk conductor and branch conductors are electrically connected. Crosslinked polyetylene insulated layer is coated with outside the aluminium alloy conductor of trunk insulated wire cores and branch's insulated wire cores. Multiple trunk insulated wire cores and multiple branches insulated wire cores form trunk cable core and branch's cable core by the way that stranding is stranded respectively, and trunk cable core and branch's cable core are coated with halogen-free flame retarding elastomer sheath (TPU).

The present invention possesses the distribution superiority of common branch cable, and conductor uses the aluminium alloy conductor of my company's independent research, and creep properties improves 300%, it is suitable with copper core cable, aluminium cable is prevented because creep causes branch joint to loosen, contact resistance increase triggers the possibility of accident; Cable weight is light, flexibility is good, minimum bending radius is only cable size seven times, overcome the difficult problem of high-building construction; Aluminium alloy cable is cheap, and the 60% of the cable cost that identical current-carrying capacity is used only copper cable, greatly save cost. Insulating barrier uses crosslinked polyetylene insulated, and sheath uses halogen-free flame retarding elastomer (TPU) sheath. TPU sheaths have and all material can preferable amalgamation, it is to avoid the exposed phenomenon of joint is produced, and plays waterproof, moistureproof effect; Halogen-free environment-friendly flame-proof material with phosphorus, nitrogen as ignition-proof element, the pernicious gases such as halogen are not discharged in burning, and fire retardation is played with into carbon, mechanism of intumescence, the escape of personnel during beneficial to fire, and rescue work development, reduce the harm that causes of fire.

Brief description of the drawings

Fig. 1 is schematic structural view of the invention, wherein

11-trunk sheath;

12-main cable conductor;

13-trunk insulated wire cores;

21-c-type wire clamp;

31-branch sheath;

32-branch cable conductor;

33-branch insulated wire cores.

Specific embodiment

As shown in figure 1, main cable and branch cable use five-wire system, branch cable is electrically connected on main cable in connector. The trunk insulated wire cores 13 of main cable and branch's insulated wire cores 33 of branch cable realize the crimping of conductor by c-type wire clamp, branch cable conductor 32 is interrupted closed peeling, crimps with main cable conductor 12, joint is maintained a certain distance by specification size requirements, ensure the whole safety conducting of cable, be effectively reduced floor space.

Main cable conductor 12 and branch cable conductor 32 use aluminium alloy conductor, conductor is coated with crosslinked polyetylene insulated layer, 5 trunk insulated wire cores 13 form trunk cable core by the way that stranding is stranded, trunk sheath is coated with trunk cable core, equally, 5 branch's insulated wire cores 33 form branch's cable core by the way that stranding is stranded, and branch's sheath is coated with outside it, and sheath uses halogen-free flame retarding elastomer (TPU). The purpose of cable insulation has been reached by this set, electric leakage accident will not occur, cause casualties, the effect of hermetically-sealed cable termination can be played simultaneously, prevent the entrance of moisture and moisture, avoid cable that breakdown accident occurs when running, improve the reliability of distribution system, while reducing maintenance and repair and mounting cost.

Claims

1. a kind of building fire-resistant waterproof soft type aluminium alloy core pre-branched cable, including main cable, branch cable and connector, branch cable is electrically connected on main cable in connector, main cable and branch cable include multiple trunk insulated wire cores and multiple branches insulated wire cores respectively, corresponding trunk insulated wire cores and branch's insulated wire cores are electrically connected in connector by connector, wherein, the conductor of trunk insulated wire cores and branch's insulated wire cores uses aluminium alloy conductor.

2. building according to claim 1 fire-resistant waterproof soft type aluminium alloy core pre-branched cable, wherein, the connector is c-type wire clamp, and it passes through to be interrupted closed peeling, crimping trunk conductor and branch conductors are electrically connected.

3. building according to claim 1 and 2 fire-resistant waterproof soft type aluminium alloy core pre-branched cable, wherein, crosslinked polyetylene insulated layer is coated with outside the aluminium alloy conductor of trunk insulated wire cores and branch's insulated wire cores.

4. building according to claim 1 and 2 fire-resistant waterproof soft type aluminium alloy core pre-branched cable, wherein, multiple trunk insulated wire cores and multiple branches insulated wire cores form trunk cable core and branch's cable core by the way that stranding is stranded respectively, and trunk cable core and branch's cable core are coated with halogen-free flame retarding elastomer sheath.