CN104637586A

CN104637586A - Self-heating cable

Info

Publication number: CN104637586A
Application number: CN201310563567.5A
Authority: CN
Inventors: 李亮
Original assignee: Chengdu Jetcom Technology Co Ltd
Current assignee: Chengdu Jetcom Technology Co Ltd
Priority date: 2013-11-14
Filing date: 2013-11-14
Publication date: 2015-05-20

Abstract

The invention belongs to the technical field of cables and provides a self-heating cable which comprises at least three conductors (4). An insulating layer (6) is wrapped outside each conductor, all conductors (4) wrapped by the insulating layers (6) are wrapped by an inner shielding layer (9), gaps between the inner shielding layer (9) and the insulating layers (6) are filled with filler (7), a water-blocking tape (3) is wrapped outside the inner shielding layer (9), an outer shielding layer (5) is wrapped outside the water-blocking tape (3), an anti-corrosive asphalt layer (1) is wrapped outside the outer shielding layer (5), an inner jacket layer (2) is wrapped outside the anti-corrosive asphalt layer (1), an outer jacket layer (11) is wrapped outside the inner jacket layer (2), and electric heating elements are uniformly distributed in the inner jacket layer (2).

Description

A kind of from electric heating cable

Technical field

The present invention relates to field of cable technology, provide a kind of from electric heating cable.

Background technology

Cable will be made when cable lays at low temperatures impaired, time serious, will cable bad be made, for this reason at low temperatures cabling time all will adopt different measures cable is heated.Existing cable can not self-heating, and the screening ability of existing cable is bad, and diamagnetic field energy power is weak, and antistatic effect is poor.

Produced Article 1 lv power cable (the wrapped copper conductor of rubber belt) in the world from 1836 so far, electric wire has developed into a large product category of many uses, various in style.China's wires and cables industry, through the development of more than 70 years, also achieves larger progress.Along with Chinese wires and cables industry high speed development, creation of new enterprise quantity constantly rises, and industry overall technology level is largely increased.State-owned and the above enterprise of scale about 5000 of current China wires and cables industry, wherein large enterprise has 19, and the gross output value accounts for 11% of whole market share.

Electric wire is the conveying energy, the indispensable basic equipment of transmission of information, and from the today in social informatization, electrified fast development, electric wire has become one of most important basic product in economic construction.Wires and cables industry is again supporting industry, and product must meet each main industry of national economy to the requirement of electric wire performance, and national economy thinks that most industry is all relevant to electric wire, and its industrial status is very important.China's wires and cables industry is still in developing stage at present, and as the important guide's industry of the development of the national economy, the growth of electric wire production and marketing index is generally higher than total value of production in national economy outline.

Summary of the invention

the object of the present invention is to provide a kind of self heating function that has, the strong one of diamagnetic field energy power strong, antistatic interference, anti-RF capabilities is from electric heating cable.

The present invention is by the following technical solutions to achieve these goals:

A kind of from electric heating cable, its spy is, comprises at least 3 conductors 4, the outer all wrap insulate layers 6 of conductor, all conductors 4 being enclosed with insulating barrier 6 are wrapped up by internal shield 9, filler 7 is filled in gap between internal shield 9 and insulating barrier 6, inner shield 9 outer wrapping waterstop 3, waterstop 3 outer wrapping outer shielding layer 5, outer shielding layer 5 outer wrapping anti-corrosion asphalt layer 1, anti-corrosion asphalt layer 1 outer wrapping inner restrictive coating 2, outer wrapping inner restrictive coating 2 wraps up external sheath layer 11, uniform electrical heating elements 10 in inner restrictive coating 2.

Described filling filler 7 is fireproof water-resisting tape, and it comprises mica layer, and the strengthening course of mica layer two sides difference adhering glass fiber mesh establishment, the film that bonding one deck is made up of water-proofing powder on strengthening course forms water blocking layer.

Described filling filler 7 is glass fibre.

Electrical heating elements 10 makes euthermic chip, ultra-thin chromium aluminium or chrome-nickel steel band for ultra-thin Nb-Al alloy steel band.

Because the present invention adopts above technical scheme, so possess following beneficial effect:

The present invention makes cable obtain higher antistatic interference, the interference of anti-external magnetic field, anti-radio frequency interference ability by inner shield and external shield.

Of the present inventionly be provided with heater element, can heat Electricity Federation.

Accompanying drawing explanation

Fig. 1 is structure chart of the present invention.

Embodiment

The present invention relates to a kind of from electric heating cable, its spy is, comprise at least 3 conductors 4, the outer all wrap insulate layers 6 of conductor, all conductors 4 being enclosed with insulating barrier 6 are wrapped up by internal shield 9, filler 7 is filled in gap between internal shield 9 and insulating barrier 6, inner shield 9 outer wrapping waterstop 3, waterstop 3 outer wrapping outer shielding layer 5, outer shielding layer 5 outer wrapping anti-corrosion asphalt layer 1, anti-corrosion asphalt layer 1 outer wrapping inner restrictive coating 2, outer wrapping inner restrictive coating 2 wraps up external sheath layer 11, uniform electrical heating elements 10 in inner restrictive coating 2.

Described filling filler 7 is glass fibre.

Electrical heating elements is that ultra-thin Nb-Al alloy steel band makes euthermic chip, ultra-thin chromium aluminium or chrome-nickel steel band.

Claims

1. one kind from electric heating cable, its spy is, comprise at least 3 conductors (4), the outer all wrap insulate layers (6) of conductor, all conductors (4) being enclosed with insulating barrier (6) are wrapped up by internal shield (9), filler (7) is filled in gap between internal shield (9) and insulating barrier (6), inner shield (9) outer wrapping waterstop (3), waterstop (3) outer wrapping outer shielding layer (5), outer shielding layer (5) outer wrapping anti-corrosion asphalt layer (1), anti-corrosion asphalt layer (1) outer wrapping inner restrictive coating (2), outer wrapping inner restrictive coating (2) parcel external sheath layer (11), uniform electrical heating elements (10) in inner restrictive coating (2).

2. one according to claim 1 is from electric heating cable, it is characterized in that: described filling filler (7) is fireproof water-resisting tape, it comprises mica layer, the strengthening course of mica layer two sides difference adhering glass fiber mesh establishment, the film that bonding one deck is made up of water-proofing powder on strengthening course forms water blocking layer.

3. one according to claim 1 is from electric heating cable, it is characterized in that: a kind of from electric heating cable, it is characterized in that: described filling filler (7) is glass fibre.

4. one according to claim 1 is from electric heating cable, it is characterized in that: electrical heating elements (10) makes euthermic chip, ultra-thin chromium aluminium or chrome-nickel steel band for ultra-thin Nb-Al alloy steel band.