CN103871667A

CN103871667A - Cold-resistant and high-temperature resistant power cable

Info

Publication number: CN103871667A
Application number: CN201410067455.5A
Authority: CN
Inventors: 何俊文; 何帮定; 何国
Original assignee: SINYU CABLE GROUP Co Ltd
Current assignee: SINYU CABLE GROUP Co Ltd
Priority date: 2014-02-27
Filing date: 2014-02-27
Publication date: 2014-06-18

Abstract

The invention discloses a cold-resistant and high-temperature resistant power cable which comprises two or more power wire cores, heating wire cores, a flame-retardant filling layer and a fluororubber outer sheath layer, wherein the power cable core is formed by pressing and wrapping a stainless steel wire shielding layer and a silicone rubber insulated layer on two aluminum alloy conductor wire cores from inside to outside; each heating wire core is formed by pressing and wrapping a water-resistant warping tape on a radiating conductor; a tinned wire woven shielding layer is flatly pressed and wrapped on the two or more power cable cores; the upper and lower gaps of every two adjacent power cable cores are respectively provided with a heating wire core; the diagonal positions of the tinned wire woven shielding layer are respectively provided with a ground wire core; the tinned wire woven shielding layer is wrapped by a ceramic insulated warping layer; the flame-retardant filling layer and the fluororubber outer sheath layer are sequentially pressed and wrapped on the ceramic insulated warping layer from inside to outside. The cable is suitable for the low-temperature resistance requirement on a power cable in a low-temperature environment, can work at the temperature between 80 DEG C below zero and 200 DEG C, and the good mechanical performance and strength are provided.

Description

A kind of cold-resistant high-temperature-resistant power cable

Technical field

The present invention relates to cable, relate in particular to a kind of cold-resistant high-temperature-resistant power cable.

Background technology

Up to now, a kind of cold-resistant high-temperature-resistant power cable is widely used in the fields such as metallurgy, casting, oil refining, chemical industry, machinery, especially in the adverse circumstances of low temperature, the conventional power cable of the signal transmssion line of electrical instrumentation and automation control system is usually because temperature is too low, cause cable easily damaged under low-temperature impact, signal transmission is influenced, causes instrument system at low temperature and emergency circumstances cisco unity malfunction, has caused huge loss.

Summary of the invention

According to above-mentioned situation, the object of the invention is to provide a kind of cold-resistant high-temperature-resistant power cable.

The solution of the present invention is as follows: a kind of cold-resistant high-temperature-resistant power cable, comprise two or many power cores, heating core, fire-retardant packed layer and fluorubber oversheath, described power core is to be extruded in from outside to inside on two aluminium alloy conductor cores and to be formed by stainless steel wire screen and silicone rubber insulation layer; Described heating core is to extrude heating conductor by the twining package tape that blocks water to form; Tin plated wire woven shield extrudes two or many power core levels; Between every two adjacent power cores, upper and lower gap location arranges a heating core; The diagonal position of described tin plated wire woven shield respectively arranges a ground wire core; The outside of described tin plated wire woven shield is coated with ceramic insulation lapping layer; Described fire-retardant packed layer and fluorubber oversheath are from inside to outside extruded on ceramic insulation lapping layer successively.

Beneficial effect of the present invention: the present invention is applicable to outdoor switch and stands in the low temperature resistant requirement of winter low temperature environment to signal cable, can be in ultralow temperature-80 DEG C-200 DEG C of steady operations, and possess good mechanical performance and intensity.

Brief description of the drawings

Fig. 1 is structural representation of the present invention;

Wherein: 1, fluorubber oversheath; 2, ceramic insulation lapping layer; 3, fire-retardant packed layer; 4, tinned copper wire woven shield; 5, aluminium alloy conductor core; 6, silicone rubber insulation layer; 7, stainless steel wire screen; 8, core; 9, heating conductor; 10, the twining package tape that blocks water.

Embodiment

Below in conjunction with accompanying drawing, the present invention will be further described;

As shown in Figure 1, a kind of cold-resistant high-temperature-resistant power cable, comprise two or many power cores, heating core, fire-retardant packed layer 3 and fluorubber oversheath 1, described power core is to be extruded in from outside to inside on two aluminium alloy conductor cores 5 and to be formed by stainless steel wire screen 7 and silicone rubber insulation layer 6; Described heating core is to extrude heating conductor 9 by the twining package tape 10 that blocks water to form; Tin plated wire woven shield 4 extrudes two or many power core levels; Between every two adjacent power cores, upper and lower gap location arranges a heating core; The diagonal position of described tin plated wire woven shield 4 respectively arranges a ground wire core 8; The outside of described tin plated wire woven shield 4 is coated with ceramic insulation lapping layer 2; Described fire-retardant packed layer 3 and fluorubber oversheath 1 are from inside to outside extruded on ceramic insulation lapping layer successively.

Although above the specific embodiment of the present invention has been given to describe in detail and explanation; but what should indicate is; we can carry out various equivalences to above-mentioned execution mode according to conception of the present invention and change and amendment; when its function producing does not exceed spiritual that specification contains yet, all should be within protection scope of the present invention.

Claims

1. a cold-resistant high-temperature-resistant power cable, comprise two or many power cores, heating core, fire-retardant packed layer and fluorubber oversheath, it is characterized in that: described power core is to be extruded in from outside to inside on two aluminium alloy conductor cores and to be formed by stainless steel wire screen and silicone rubber insulation layer; Described heating core is to extrude heating conductor by the twining package tape that blocks water to form; Tin plated wire woven shield extrudes two or many power core levels; Between every two adjacent power cores, upper and lower gap location arranges a heating core; The diagonal position of described tin plated wire woven shield respectively arranges a ground wire core; The outside of described tin plated wire woven shield is coated with ceramic insulation lapping layer; Described fire-retardant packed layer and fluorubber oversheath are from inside to outside extruded on ceramic insulation lapping layer successively.