Multi-core integrated branch cable and production method thereof

A technology of branch cables and branch cables, applied in the direction of insulated cables, cable/conductor manufacturing, cables, etc., which can solve problems such as difficult installation, insufficient cable installation space, and lack of multi-core integrated branch cable structure. Uniform and convenient installation and wiring effect

Inactive Publication Date: 2009-09-02
BAOSHENG SCI & TECH INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the production and use of branch cables is very extensive, the structure used is mainly single-core type, and some are single-core twisted type (twisted type), there is no multi-core integrated branch cable structure, which cannot meet the needs of small cable installation space and installation difficult project

Method used

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  • Multi-core integrated branch cable and production method thereof
  • Multi-core integrated branch cable and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] 1. The conductor 1 of the main cable and the branch cable is made of copper single wire twisted in accordance with the provisions of GB / T3953. The conductive core meets the requirements of type 2 conductors in GB / 3956, which ensures that the product has good electrical conductivity and softness.

[0022] 2. The conductor 1 is wrapped with a double layer of synthetic mica tape 2 (or fire-resistant mica tape) with high temperature resistance, the covering rate is 50% to 60%, and it can withstand the temperature of 1000°C.

[0023] 3. Extrude the cross-linked polyethylene insulating layer 3 on the synthetic mica tape to form the insulating core. Using cross-linked polyethylene as cable insulation material has better insulation strength and heat resistance stability than PVC.

[0024] 4. Use 2 to 5 insulated wire cores, and regularly twist them together to form core wires according to the standard cable pitch and uniform torsion force, and fill the gaps between the insulate...

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Abstract

The invention relates to a multi-core integrated branch cable and a production method thereof. The multi-core integrated branch cable comprises a main cable, branch cables, connecting fixtures and the like, wherein the main cable or each branch cable is formed by twisting 2 to 5 insulated conductors into a core wire, winding, coating and binding the core wire by bags into a cable core, and coating a layer of plastic outer sheath on the cable core through extrusion; the main cable is provided with phase conductor openings connected with terminations of the branch cables; the phase conductor openings are staggered at equal intervals in turn; copper conductors of the terminations of the branch cables with the same phase are in crimp connection with copper conductors at the phase conductor openings of the main cable into a branch connecting body through the connecting fixtures and a compression mould; the crimp connection part is coated with an ethylene propylene rubber self-adhesive tape which is coated with a cross-linked polythene insulation layer; and a sheath of the branch connecting body is moulded on the insulation layer. The multi-core integrated branch cable has a reasonable and compact structure, realizes that a single cable replaces four or five single core cables for use, and has simple laying and small occupied space.

Description

technical field [0001] The invention relates to a branch cable, in particular to the structure of a multi-core integrated branch cable, and belongs to the technical field of cables. Background technique [0002] Branch cables evolved from the conventional radial wiring system. It is an efficient, safe and convenient power distribution method. It originated in the 1980s and is now widely used in the construction industry and has developed rapidly. It has grown from a single The power distribution of civil buildings has developed to the current key construction fields such as middle and high-rise industrial and civilian buildings, bridges, tunnels, light rails, subways, and large cultural and sports venues. The reason for the rapid development of branch cables is mainly due to the characteristics of its tree-shaped distribution points and the stable prefabricated structure of the factory. In terms of function, branch cables have developed from common type to flame-retardant t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/00H01B7/17H01B3/44H01B3/28H01B13/00H01R4/20H01R4/70H01R9/00
Inventor 崔学林陈文奎房权生张华荣朱锦凤
Owner BAOSHENG SCI & TECH INNOVATION
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