Novel intrinsic safety type instrument cable

An instrument cable, intrinsically safe technology, applied in the field of cables and wires, can solve problems such as non-fire resistance, achieve good flame retardant performance, and stabilize signal transmission functions

Inactive Publication Date: 2016-04-06
JIANGSU WEIKAI PETROCHEM METALLURGICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the popularization of use, an important problem has emerged, that is, it is not fire-resistant, and there are hidden dangers in safety.

Method used

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  • Novel intrinsic safety type instrument cable

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Embodiment Construction

[0011] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0012] Such as figure 1 Shown is a schematic structural diagram of the present invention, a new type of intrinsically safe instrument cable, the insulated wire core is composed of a conductor 3 and an insulating layer 2 from the inside to the outside, and the insulating layer 2 is formed into a twisted unit 1 according to two pairs of wires. The twisted unit 1 forms a cable core 4 , and the outer layer of the cable core 4 is provided with a tape layer 5 , a filling layer 6 and a sheath layer 7 sequentially from the inside to the outside. The insulating layer 2 is an insulating layer of a radiation-resistant cross-linked polyolefin composite layer.

[0013] The filling layer 6 is filled with black halogen-free, high...

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Abstract

The invention discloses a novel intrinsic safety type instrument cable. The instrument cable is characterized in that insulation wire cores are composed of conductors and insulation layers from inside to outside; the insulation layers are twisted in pairs to form twisted-pair units; the twisted-pair units form a cable core; and an outer layer of the cable core is provided with a wrapping tape layer, a filling layer and a sheath layer in sequence from inside to outside. The insulation layers are radiation-resistant cross-linked polyolefin composite insulation layers. The instrument cable has the advantages that due to selected materials, the cable has good flame-retardant performance and is ensured to have a stable signal transmission function.

Description

technical field [0001] The invention belongs to the technical field of electric wires and cables, and in particular relates to a novel intrinsically safe instrument cable. Background technique [0002] A cable is made of one or more mutually insulated conductors and an outer insulating layer. The wires or cables that transmit power or information from one place to another are usually composed of several or groups of wires (each group is at least two ) twisted rope-like cable, each group of conductors is insulated from each other, and is usually twisted around a center, and the entire outside is covered with a highly insulating covering. The cable has the characteristics of internal electrification and external insulation. Common cable classifications include: cables include power cables, control cables, compensation cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mine cables, aluminum al...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H01B7/02H01B7/17H01B7/295
CPCH01B7/02H01B7/17H01B7/295
Inventor应红娟
OwnerJIANGSU WEIKAI PETROCHEM METALLURGICAL EQUIP CO LTD