CN201868132U - Polyethylene insulated twisted-pair shielded wire - Google Patents

Abstract

The utility model relates to a polyethylene insulated twisted-pair shielded wire, which comprises two conductors with polyethylene insulating layers. The two conductors are twisted into a wire pair, and a tinned copper shielding layer is woven on the outside of the wire pair. The polyethylene insulated twisted-pair shielded wire has the advantages that the polyethylene insulated twisted-pair shielded wire is excellent in electric performance, a conductive wire core is fine in electrical, mechanical and physical performances such as softness, easy welding and the like, dielectric loss is small, the wire is excellent in dielectric constant and dielectric loss angle tangent value, transmission performance of a cable can be guaranteed, the wire is high in volume resistance, can meet the requirements of clients on insulating resistance, is resistant to electromagnetic interference, has the characteristics of interference resistance, capability of strengthening shielding of the cable to external electronic signals, and is wide in operating temperature range, and the cable can be normally used within the temperature range of -40 DEG C and 70 DEG C.

Description

Polyethylene insulation multiple twin shielding conductor

Technical field

The utility model relates to a kind of cable, particularly a kind of polyethylene insulation multiple twin shielding conductor.

Background technology

This cable product is mainly used in and connects between the instrument in the ground control system of signal equipment and the signal transmission, is one of critical component in the control system.The world today is varied as the multiple-twin cable design form of transmission medium, it is ever-changing that structural group becomes, environment for use varies, abominable service condition promptly requires to reach on the cable design electrical performance indexes excellence, takes into account physical and mechanical properties simultaneously and the useful life during as cable and coordinative composition of equipments.Take into account possibility, in light weight in order to reach cable, softness, bending radius is little, comprehensive characteristics such as anti-electromagnetic interference, the design of the utility model construction of cable is arisen at the historic moment.

Summary of the invention

In view of the requirement of prior art, the utility model provides a kind of polyethylene insulation multiple twin shielding conductor that has physical dimension compactness, softness, has certain anti-electromagnetic interference capability, serviceability temperature wider range.

The utility model for achieving the above object, the technical scheme of being taked is: a kind of polyethylene insulation multiple twin shielding conductor is characterized in that: comprise respectively by two conductors strands that have polyethylene layer weaving one deck tin-coated copper screen to becoming line right at it outside.

Advantage and the good effect that the utlity model has are: (1), superior electrical property: conductor is selected zinc-plated soft circular copper wire for use, thereby makes conductor wire core have good electric, mechanical and physical performances such as softness, easy welding.(2), dielectric loss is little: the insulating barrier of cable adopts the high-quality low-density polyethylene material, this material has excellent dielectric constant and dielectric loss angle tangent, the transmission performance of cable is guaranteed, and this material volume resistivity height can satisfy the requirement of client to insulation resistance simultaneously.(3), anti-electromagnetic interference: the screen of cable adopts tinned wire, and that this material has is anti-tampering, strengthen the cable characteristics such as shielding of electronic signal to external world.(4), serviceability temperature wide ranges: in-40 ℃～+ 70 ℃ temperature ranges, this cable all can normally use, and has the favorable mechanical physical property.

Description of drawings

Fig. 1 is the utility model structure schematic diagram.

Embodiment

As shown in Figure 1, polyethylene insulation multiple twin shielding conductor, comprise conductor 1, polyethylene layer 2, tin-coated copper screen 3, conductor 1 is the zinc-plated soft circular copper wire of 7/0.26mm, outside conductor 1, extrude one deck low density polyethylene (LDPE) insulating barrier 2, braiding one deck filament diameter 0.1mm tinned wird 3 outside it, above structure constitutes cable.

Although in conjunction with the accompanying drawings preferred enforcement of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection range of the present utility model.

Claims (1)

1. a polyethylene insulation multiple twin shielding conductor is characterized in that: comprise respectively and being twisted becoming line right by two conductors (1) that have polyethylene layer (2), weave one deck tin-coated copper screen (3) outside it.

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