CN203165530U

CN203165530U - Anti-vibration cable

Info

Publication number: CN203165530U
Application number: CN 201320051971
Authority: CN
Inventors: 李红东
Original assignee: CHENGDU CHUANLAN CABLE Co Ltd
Current assignee: CHENGDU CHUANLAN CABLE Co Ltd
Priority date: 2013-01-30
Filing date: 2013-01-30
Publication date: 2013-08-28
Anticipated expiration: 2023-01-30

Abstract

The utility model relates to an anti-vibration cable, which is suitable for fire resisting cables and ordinary cables, regardless of being armored or not. For the fire resisting cables, the anti-vibration cable comprises at least one conductive wire core (3), fire-resistant layers, insulating layers (5) and a sheath (1) at the outermost layer, if the anti-vibration cable is not armored, the internal of the sheath (1) is further provided with an anti-vibration lining (2), and the gap between the anti-vibration lining (2) and the insulating layers (5) is filled with an anti-vibration protective layer (6); and if the anti-vibration cable is armored, an armor layer (7) is sandwiched between the anti-vibration lining (2) and the sheath (1). For the ordinary cables, the fire-resistant layers are not needed, and the other structure is the same as that of the fire resisting cables. The anti-vibration cable has the advantages that: with the adoption of the anti-vibration protective layer and the anti-vibration lining, the cable is ensured to work normally in hostile environment, and the service life of the cable can be significantly prolonged; and the anti-vibration protective layer is formed by foamable polymer materials with high elasticity through co-extrusion molding processing, so that the anti-vibration cable has both needed mechanical strength and low production cost while being capable of vibration resistance and vibration absorption.

Description

A kind of antidetonation cable

Technical field

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

Background technology

Along with the continuous progress of society, people increase considerably the attention rate of urban environment.The greening urban environment, to improve the quality of living be the development trend of modern society, so the overhead transmission line that people will " day net " formula has become the underground piping transmission line, transmission line is hidden in underground, beautified environment.

Because the abuse of plant equipment, misoperation etc., various power cables can be subjected to damage in various degree, for example, in industrial production, in the installation process, in the civil engineering process, urban pipe network is in building etc., power-equipment causes expendable damage to cable, and often can not directly find out from outward appearance, but can reduce the reliability of cable to a great extent, reduce the useful life of cable, can make cable short circuit or open circuit, cause great personnel, equipment casualty accident, even cable core may occur and expose, cause taking place electric shock accidents.

Chinese patent 201120082383.3 discloses a kind of antidetonation power cable, comprises conductor, semi-conductive layer, conductor shield, insulating barrier, insulation screen, steel band screen, elastomer-filled, lapping layer, separation sleeve, thin round steel wire armour, thick round steel wire armour, copper conductor, separator and oversheath.Structure of the present utility model is very complicated, and its production cost increases substantially, and when the more serious breaking-up of steel wire, steel-tape armouring layer, will be concentrated in very little zone, and core can't restore to the original state, and insulating barrier will be by permanent destruction.

The utility model content

The purpose of this utility model is to overcome the shortcoming of prior art, provides that a kind of anti-seismic performance is outstanding, long service life and the low antidetonation cable of production cost, can adapt to the influence that adverse circumstances such as various long-term vibration, friction are brought.

The purpose of this utility model is achieved through the following technical solutions: a kind of antidetonation cable; it comprises at least one conductor wire core, is arranged at insulating barrier and the outermost sheath of conductor wire core outside; sheath inside also is provided with the antidetonation lining, is filled with the antidetonation protective layer in the space between antidetonation lining and the insulating barrier.

The area of section scope of described conductor wire core is 1.5～1600mm ²

Also be provided with flame retardant coating between described conductor wire core and the insulating barrier.

Also be provided with armour between described antidetonation lining and the sheath.

The antidetonation protective layer processes through coextrusion mold for having elastomeric extraordinary foamed polymer material.

The utlity model has following advantage:

1, between the insulating barrier of sheath and parcel conductor wire core, is provided with the antidetonation lining of antidetonation protective layer and parcel antidetonation protective layer, guarantees that cable, still can operate as normal under rugged environments such as long-term vibration, friction.

2, conductor wire core is as the medium of transferring electric power; other parts then all shield; this cable comprises sheath, antidetonation protective layer, flame retardant coating and insulating barrier; all can play a protective role; even sheath is impaired; antidetonation protective layer, flame retardant coating and insulating barrier also can play a protective role, and increased substantially the useful life of cable.

3, the antidetonation protective layer processes through coextrusion mold for having elastomeric extraordinary foamed polymer material, in antidetonation shock attenuation, has and has both due mechanical strength and flame-retardant performance, and its production cost is also lower.

Description of drawings

Fig. 1 has the antidetonation construction of cable schematic diagram of flame retardant coating again for existing armour;

Fig. 2 has the antidetonation construction of cable schematic diagram of flame retardant coating for no armour;

Fig. 3 has armour not have the antidetonation construction of cable schematic diagram of flame retardant coating;

Fig. 4 is not for both there being the antidetonation construction of cable schematic diagram that armour does not have flame retardant coating yet;

Among the figure: 1-sheath, 2-antidetonation lining, 3-conductor wire core, 4-flame retardant coating, 5-insulating barrier, 6-antidetonation protective layer, 7-armour.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described, but protection range of the present utility model is not limited to the following stated.

As shown in Figure 1, a kind of antidetonation cable, it comprises at least one conductor wire core 3, is arranged at insulating barrier 5 and the outermost sheath 1 of conductor wire core 3 outsides, and sheath 1 inside also is provided with antidetonation lining 2, is filled with antidetonation protective layer 6 in the space between antidetonation lining 2 and the insulating barrier 5; The area of section scope of conductor wire core 3 is 1.5～1600mm ²Also be provided with flame retardant coating 4 between conductor wire core 3 and the insulating barrier 5; Also be provided with armour 7 between antidetonation lining 2 and the sheath 1.

As shown in Figure 2, a kind of antidetonation cable, this antidetonation cable does not have armour, flame retardant coating is arranged, it comprises at least one conductor wire core 3, is arranged at insulating barrier 5 and the outermost sheath 1 of conductor wire core 3 outsides, sheath 1 inside also is provided with antidetonation lining 2, is filled with antidetonation protective layer 6 in the space between antidetonation lining 2 and the insulating barrier 5; The area of section scope of conductor wire core 3 is 1.5～1600mm ²If when the antidetonation cable is fire-resisting cable, also be provided with flame retardant coating 4 between conductor wire core 3 and the insulating barrier 5.Do not install armour additional between sheath 1 and antidetonation lining 2, the mechanical strength of this antidetonation cable is low, and its useful life is also corresponding lower.

As shown in Figure 3, a kind of antidetonation cable, this antidetonation cable has armour, no flame retardant coating, it comprises at least one conductor wire core 3, is arranged at insulating barrier 5 and the outermost sheath 1 of conductor wire core 3 outsides, sheath 1 inside also is provided with antidetonation lining 2, is filled with antidetonation protective layer 6 in the space between antidetonation lining 2 and the insulating barrier 5; The area of section scope of conductor wire core 3 is 1.5～1600mm ²Also be provided with armour 7 between antidetonation lining 2 and the sheath 1.This antidetonation cable does not arrange one deck flame retardant coating between insulating barrier 5 and conductor wire core 3, fire resistance is lower.

As shown in Figure 4, a kind of antidetonation cable, this antidetonation cable had not both had armour not have flame retardant coating yet, it comprises at least one conductor wire core 3, is arranged at insulating barrier 5 and the outermost sheath 1 of conductor wire core 3 outsides, sheath 1 inside also is provided with antidetonation lining 2, is filled with antidetonation protective layer 6 in the space between antidetonation lining 2 and the insulating barrier 5; The area of section scope of conductor wire core 3 is 1.5～1600mm ²This antidetonation cable is common antidetonation cable, does not both install armour additional between sheath 1 and antidetonation lining 2, also between insulating barrier 5 and conductor wire core 3 one deck flame retardant coating is set, and its mechanical strength and fire resistance are all lower.

The conveying voltage range is 1～150KV, is applicable to low pressure, medium and high pressure cable.Antidetonation protective layer 6 is to be processed through coextrusion mold by the special elastomeric foamed polymer material that has; in the extrusion molding course of processing, produce fine and close, uniform microcellular structure simultaneously; thereby make this antidetonation protective layer 6 have high resiliency; and reach the same of rigidity and flexibility; in antidetonation, have both due mechanical strength again; when cable was subjected to external impacts, this protective layer was just as a damping, buffering device, and it is minimum that the impact that conductor wire core 3 is subjected to reaches.The antidetonation cable fully can be compatible mutually with traditional electric cable accessories, and shrinkage and pyrocondensation transition joint and sheath all can use.

Claims

1. antidetonation cable; it comprises at least one conductor wire core (3), is arranged at conductor wire core (3) outside insulating barrier (5) and outermost sheath (1); it is characterized in that: sheath (1) inside also is provided with antidetonation lining (2), is filled with antidetonation protective layer (6) in the space between antidetonation lining (2) and the insulating barrier (5).

2. a kind of antidetonation cable according to claim 1, it is characterized in that: the area of section scope of described conductor wire core (3) is 1.5～1600mm ²

3. a kind of antidetonation cable according to claim 1 is characterized in that: also be provided with flame retardant coating (4) between described conductor wire core (3) and the insulating barrier (5).

4. a kind of antidetonation cable according to claim 1 is characterized in that: also be provided with armour (7) between described antidetonation lining (2) and the sheath (1).