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Cable with twisting wire

A cable and core material technology, applied in the direction of twisted/quad-stranded cables, communication cables, insulated cables, etc., can solve problems such as difficult installation, out-of-round cables, and difficult cable ducts

Inactive Publication Date: 2001-10-10
普雷斯托利特电缆公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the resulting cables are not round and thus difficult to install, especially to guide into cable ducts

Method used

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  • Cable with twisting wire
  • Cable with twisting wire
  • Cable with twisting wire

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Embodiment approach

[0022] According to a first embodiment, the inventive cable 100 comprises bare copper conductors 50 having a diameter between 22 AWG and 24 AWG. Each wire 50 is insulated with a material 60 having a dielectric constant of about 2.5 or less, the insulating material comprising solid or foamed flame-retardant polyethylene (FRPE), flame-retardant polypropylene (FRPP), high-density polyethylene (HDPE ), polypropylene (PP), MFA, PFA or FEP and foamed ECTFE. First twist the wire 50 to form a Figure 5 conductor pairs 10 as shown, and then combine the conductor pairs as shown in FIG. 3 . The dotted line in FIG. 3 indicates the combination of conductor pairs 10 and the quadruple wire group 140 formed by the braided conductor pairs 10, but the material is not marked.

[0023] Also, each wire group containing at least two conductor pairs may be wrapped with a material. For example, each wire set 140 may be wrapped with a wire set sheath comprising an aluminum / polyester material, an al...

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PUM

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Abstract

A cable that includes an even number of paired couples of conductors, evenly divided into groups, and an additional couple of conductors, coupled with and encircled around a length of a filler material, extended in parallel so the groups of conductor pairs surround the additional pair of conductors and the filler material and surrounded by a jacket material, and a method for forming the cable.

Description

[0001] invention technical field [0002] The present invention relates to electrical cables, and more particularly, the present invention relates to electrical cables comprising an odd number of conductor pairs. Background of the invention [0003] Various telecommunication systems require communication cables containing an odd number of conductor pairs. The cables usually used for this purpose contain 25 conductor pairs and are of the five-core cable category. This cable, like other cables, must comply with the technical requirements of TIA / EIA. Cable manufacturers have experimented with various cable construction techniques aimed at meeting the TIA / EIA 25-pair five-conductor class of power sum near-end crosstalk (NEXT) specifications. [0004] For gas pressurized products, products using a star configuration cable core will fail the UL 910 flame test. This is due to the fact that the star-shaped core greatly increases the percentage...

Claims

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Application Information

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IPC IPC(8): H01B7/18H01B7/295H01B11/02H01B11/04H01B11/06H01B11/08H01B11/10H01B13/00
CPCH01B11/1025H01B11/1016H01B7/1895H01B11/08H01B11/02
Inventor R·托特兰德T·N·比瑞尔斯曼J·W·格拉波斯克
Owner 普雷斯托利特电缆公司