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Assembly of twisted insulated electric wires

A component and twisting technology, which is applied in the direction of insulated cables, electrical components, insulated conductors, etc., can solve problems such as difficult separation of insulated electrical conductors, etc.

Inactive Publication Date: 2011-11-23
NEXANS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this type of assembly has a number of disadvantages
Specifically, on the one hand, it is very difficult to insert the tape-like structure onto the sheath because it is mainly flexible only in a single direction, and on the other hand, because the hot-melt adhesive is very elastic (in The elongation at break is at least 140%), so it is not easy to separate the insulated electrical conductors in which the adhesive is present

Method used

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  • Assembly of twisted insulated electric wires
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  • Assembly of twisted insulated electric wires

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Embodiment Construction

[0036] For brevity, the same elements have been denoted by the same reference numerals. Likewise, the main elements for understanding the present invention have been schematically shown, but not drawn to scale.

[0037] figure 1 An assembly 10 of two insulated wires 1 is shown, each insulated wire 1 comprising a central conductive core 2 surrounded by an insulating material 3. The two insulated wires are in contact with each other and twisted together. The thermoplastic holding material 4 is continuously extruded and deposited in the outer groove 5 formed between the two insulated wires in order to bond them together. The thermoplastic holding material fills the outer groove 5 so that the outer diameter of the circular cross section of the inscribed thermoplastic holding material is smaller than the outer diameter of the circular cross section of the inscribed twisted bundle. In this way, the thermoplastic holding material does not completely cover the twisted strands, but a p...

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Abstract

The invention relates to an assembly comprising insulated electric wires arranged in parallel to each other, each electric wire being surrounded by an insulating material and a thermoplastic supporting material, characterised in that the insulated electric wires are twisted together and define a bunch, and in that the thermoplastic supporting material is provided so as to connect all the insulated electric wires of the bunch together so that each insulated electric wire is connected to at least one insulated electric wire adjacent thereto, and so that a portion of the insulation material of at least one insulated electric wire of the bunch remains visually identifiable from outside the assembly.

Description

Technical field [0001] The invention relates to an assembly of twisted insulated electrical conductors. [0002] It is typically not specifically applied to the field of energy cables and / or communication cables, and more specifically to low-voltage cables used in buildings, according to European standards H07VU, H07VK, 07ZLU and 07ZLK, which have a maximum of 750V Voltage. Background technique [0003] An assembly of insulated electrical conductors suitable for this purpose, which can be easily separated without special tools, is known from document FR2122323. [0004] The insulated electrical conductors of the assembly are placed side by side to form a strip of insulated electrical conductors. Hot-melt adhesive beads are placed in the grooves formed between each pair of insulated electrical conductors to bond the insulated electrical conductors together. These hot melt adhesive beads are interrupted in some places to allow the insulated conductors to be separated and connected. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B13/14
CPCH01B7/361H01B7/0275H01B13/146
Inventor P.奥多特
Owner NEXANS
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