CN201751946U

CN201751946U - Novel cable

Info

Publication number: CN201751946U
Application number: CN201020231829XU
Authority: CN
Inventors: 祝亨林
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-21
Filing date: 2010-06-21
Publication date: 2011-02-23
Anticipated expiration: 2020-06-21

Abstract

The utility model discloses a novel cable comprising a cable core and a jacket wrapped outside the cable core. The novel cable is characterized in that the cable core comprises a plurality of core lines, each core line has a four-layer combination structure, a conductor line core, an insulation layer, an insulation shielding layer and an inner jacket layer are arranged sequentially from inside to outside, wherein the insulation layer is made of halogen-free flame retardant ethylene propylene rubber, the insulation shielding layer is made of semiconducting ethylene propylene rubber, and the inner jacket layer and an outer lapping layer are all halogen-free bands; the jacket has a four-layer combination structure, the outer lapping layer, a flame retardant fireproof mica tap layer, an outer metal shielding layer and an outer jacket layer are arranged sequentially from inside to outside, wherein the outer jacket layer is made of halogen-free flame retardant cross linking polyolefin. For the cable, the low-smoke halogen-free flame retardant performance is good, and the secondary disaster generated when the cable burns is effectively avoided; the strength is high, the flexibility is good, the use is safe and reliable, the cable connection for electrical appliances in specific occasions and narrow spaces can be realized, and the installation is convenient, and the maintenance is easy.

Description

A kind of novel cable

Technical field

The utility model relates to a kind of cable, particularly a kind of novel cable.

Background technology

At present, the electrical apparatus control equipment connection in the intensive place of personnel is adopted the anti-flammability cable with cable more, as employed cables such as boats and ships and skyscraper, chemical industry, power station, chemical plant, city squares, but these cable-flame retardant performances are not fine, when fire takes place, smokescope is big, and these cables in combustion process second-time burning are taking place easily.The environment for use of cable is generally poor, and cable easily rubs with the parts of machinery, causes the life-span of cable to be lacked, and the anti-electromagnetic interference capability to cable of present employed cable, flexibility also have certain limitation.

The utility model content

At the problem that above-mentioned prior art exists, the utility model provides a kind of novel cable, and its low-smoke non-halogen flame-retardant performance is good, and produces secondary disaster can avoid cable fire the time.

To achieve these goals, the technical solution adopted in the utility model is such: a kind of novel cable, comprise cable core and be wrapped in the outer sheath of cable core, described cable core is made up of several heart yearns, each root heart yearn is four layers of combining structure, is followed successively by conductor thread core, insulating barrier, insulation screen, inner restrictive coating from inside to outside, and described insulating barrier is a halogen-free flameproof ethylene-propylene rubber, described insulation screen is a semiconductive ethylene-propylene rubber, and described inner restrictive coating and outer lapping layer are the Halogen band; Described sheath is four layers of combining structure, is followed successively by outer lapping layer, flame-retardant mica belt, outer metal screen layer, external sheath layer from inside to outside, and described external sheath layer is the non-halogen flame-proof cross-linking polyolefin.

As preferably, described heart yearn is 3, and twists together.The copper wire part of heart yearn glued together does not so contact mutually, has prevented the generation of short-circuit state, and copper wire is condensed in together, and the ability that makes heart yearn bear pulling force strengthens.

As preferably, described conductor thread core is stranded zinc-plated soft copper silk.The soft copper silk has pliability preferably, can be of value to shipping work.

Compared with prior art, advantage of the present utility model is:

1, this novel cable low-smoke non-halogen flame-retardant performance is good, produces secondary disaster in the time of effectively avoiding cable fire.

2, this novel cable intensity height, flexibility are good, safe in utilization, reliable, and can be implemented in particular field in one's power the electric equipment of small space connect with cable, and easy for installation, be easy to safeguard.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, a kind of novel cable comprises cable core and is wrapped in the outer sheath 2 of cable core that described cable core is made up of tree root heart yearn 1, each root heart yearn 1 is four layers of composite construction, is followed successively by conductor thread core 1-1, insulating barrier 1-2, insulation screen 1-3, inner restrictive coating 1-4 from inside to outside; Described sheath 2 is four layers of combining structure, is followed successively by outer lapping layer 2-1, inner restrictive coating 2-2, flame-retardant mica belt 2-3, external sheath layer 2-4 from inside to outside.In the present embodiment, described heart yearn 1 is 3, and 3 heart yearns 1 twist together.Gap in the described sheath 2 is provided with packing, and this packing is fire-retardant rubber packing.Described conductor thread core 1-1 is zinc-plated soft copper silk.Described insulating barrier 1-2 is through the ethylene propylene rubber insulated layer of the high-modulus halogen-free flameproof that extrudes formation.Described insulation screen 1-3 is through the ethylene propylene rubber insulated screen of the semiconductive that extrudes formation.Described inner restrictive coating 1-4 and outer lapping layer 2-1 are the low smoke and zero halogen band lapping layer through wrapped formation.Described external sheath layer 2-4 is provided with in the mode that extrudes the low-smoke non-halogen flame-retardant cross-linked polyolefin.Described flame-retardant mica belt 2-3 is through wrapped formation, plays oxygen barrier, fire-retardant, fire-resistant effect.The electrical equipment that this novel cable is suitable for various boats and ships connects electrical apparatus control equipment with special places such as cable and chemical industry, the intensive venue of personnel and skyscrapers and is connected and uses cable.

Claims

1. novel cable, comprise cable core and be wrapped in the outer sheath of cable core, it is characterized in that: described cable core is made up of several heart yearns, each root heart yearn is four layers of combining structure, be followed successively by conductor thread core, insulating barrier, insulation screen, inner restrictive coating from inside to outside, described insulating barrier is a halogen-free flameproof ethylene-propylene rubber, and described insulation screen is a semiconductive ethylene-propylene rubber, and described inner restrictive coating and outer lapping layer are the Halogen band; Described sheath is four layers of combining structure, is followed successively by outer lapping layer, flame-retardant mica belt, outer metal screen layer, external sheath layer from inside to outside, and described external sheath layer is the non-halogen flame-proof cross-linking polyolefin.

2. a kind of novel cable according to claim 1 is characterized in that: described heart yearn is 3, and twists together.

3. a kind of novel cable according to claim 1 is characterized in that: described conductor thread core is stranded zinc-plated soft copper silk.