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Improved profiled insulation and method for making the same

A technology of insulating parts and wires, which is applied in the direction of insulators, insulated conductors, insulated cables, etc., and can solve problems such as the expected shape of difficult-to-curve insulating parts

Inactive Publication Date: 2010-11-03
NEXANS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, even with this approach, there are still many drawbacks
First, it is difficult to achieve the desired shape of the curved insulation

Method used

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  • Improved profiled insulation and method for making the same
  • Improved profiled insulation and method for making the same
  • Improved profiled insulation and method for making the same

Examples

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Embodiment Construction

[0023] In one embodiment, figure 2 Shown is an extrusion die 10 for extruding a shaped insulation over a conductor of a wire, such as a telecommunications / electrical signal wire. The extrusion die 10 is used in a common extruded wire form whereby a conductor wire is drawn through the die 10 with molten insulation / polymer applied thereto. For purposes of illustration, the invention contemplates that the coated conductors are wire conductors, such as copper wires, and the insulation is FEP (fluorinated ethylene propylene), for twisted pair communication wires used in LAN (Local Area Network) cables. However, it should be understood that the embodiments described herein are equally applicable to other polymeric insulations such as MFA, PVC and EFEP insulations as well as drawn reduced and pressure extruded types (e.g. using PE or PP as described later in the specification) .

[0024] In another embodiment, it is noted that the shaped insulation described herein is by way of ex...

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PUM

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Abstract

A wire, having a conductor and an insulation, extruded onto the conductor. The insulation has a plurality of alternating plateaus and valleys thrilling a profile along the outer circumference, where a circumference ratio of an outer circumference of the insulation at the full thickness of the plateaus relative to the portion of the outer circumference of the insulation that is at the reduced thickness of valleys is substantially 1.5 or greater.

Description

technical field [0001] The invention relates to the field of cables and cable production. More specifically, the present invention relates to shaped insulation for electrical cables and a method of producing the same. Background technique [0002] Copper cables are used for various purposes such as power transmission and signal transmission. In signal transmission tasks, the selection of insulating elements requires particular attention. For example, twisted pairs of copper conductors used in data cables such as LAN (Local Area Network) cables must meet certain fire safety standards and be cost effective while minimizing signal degradation. This signal degradation can be caused by factors such as interference with adjacent conductors, mutual inductance with insulation. [0003] Therefore, when developing copper conductor signal cables, typically multiple twisted pairs of copper conductors in the same jacket, greater care has to be taken to minimize cost while maintaining ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B17/58H01B11/04H01B13/14
CPCH01B13/143H01B7/0275H01B11/02H01B3/30H01B7/02H01B7/0823
Inventor 格雷格·赫夫纳乔舒亚·凯勒
Owner NEXANS