CN201122449Y

CN201122449Y - Silicon based rubber cable

Info

Publication number: CN201122449Y
Application number: CNU2007200607289U
Authority: CN
Inventors: 郑钟南; 吴川中
Original assignee: GUANGDONG NANYANG CABLE GROUP CO Ltd
Current assignee: Nanyang cable (Tianjin) Co., Ltd.
Priority date: 2007-12-03
Filing date: 2007-12-03
Publication date: 2008-09-24
Anticipated expiration: 2017-12-03

Abstract

The utility model provides a silicon-based rubber cable, which comprises three groups or more than three groups of conductors, insulating layers, belting layers, and protective sleeves, wherein, each group of conductors are respectively extruded with insulating layers, the insulating layer is divided into an inner insulating layer and outer insulating layer, which are extruded for two times by the silicon-based rubber with different components into a double layer structure, and each group of conductors with insulating layers are wrapped on the previous flexible belting layer together during the cabling process and placed into the protective sleeve. The utility model uses the above technical proposal, especially the belting layer, the inner protective layer and a metal protective layer is arranged inside the protective sleeve, the utility model can effectively improve the mechanical tensile strength of the protective sleeve of the cable, and the minimum tensile strength is improved from 5 N/mm <2> to 10 N/mm <2>; the cable is arranged with shielding layer, the exterior boundary is not affected during the transmission of electric energy, and simultaneously the counter external interference performance is good; after a metal armour layer is arranged, the utility model can satisfy the special requirements of the cable.

Description

A kind of silicon-based rubber cable

Technical field:

The utility model relates to a kind of electric wire, particularly relates to the transmit electric power silicon-based rubber cable of usefulness of a kind of electric wiring.

Background technology:

Needs along with high speed development of national economy and landscaping, various overhead wires go underground one after another, cable market is developed rapidly, at present under the comparatively abominable occasion of environment, often use the silicon rubber insulation electric wire as occasions such as high temperature or low temperature, corrosive atmospheres, its as fired basis instinct has satisfied the specific demand of various engineerings.But because existing silicon rubber insulation electric wire is relatively simple for structure, the mechanical and physical performance of main insulating material silicon rubber is poor than polyvinyl chloride and vinyon, use to occur cable cover(ing) cracking, decortication bad phenomenon sometimes under the adverse circumstances occasion, influence is normally used.

The utility model content:

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of silicon-based rubber cable that uses under the adverse circumstances occasions such as high low temperature, corrosion that is applicable to is provided.

The purpose of this utility model is achieved in that described a kind of silicon-based rubber cable; comprise that three groups and three groups are with upper conductor; insulating barrier; belting layer 5 and sheath; every group of lead is extruded with insulating barrier separately; described insulating barrier is divided into inner insulating layer 2 and external insulation layer 3; divide secondary to extrude by the heterogeneity silicon-based rubber and constitute double-decker; each lead common wrapped last layer belting layer 5 in the stranding process of organizing the tape insulation layer is placed in the sheath; described sheath is disposed with inner protective layer 6 from inside to outside; metal sheath 7 and external protection 8; gap between described belting layer 5 and each the group lead is provided with packing material 4; described inner protective layer 6 extrudes for silicon-based rubber or the wrapped formation of high-low temperature resistant material band, and described external protection 8 is the silicon-based rubber layer.

Described metal sheath 7 is a metal screen layer 7, and described metal screen layer 7 is metal knitted silk or the wrapped formation of metal tape, and described metal knitted silk is copper wire or tinned copper wire, and described metal tape is a copper strips.

Described metal sheath 7 is the metal armouring layer.

Described belting layer 5 is thermally resistant fiber glass band or the wrapped formation of fire-retardant band that has the oxygen barrier effect.

Described packing material 4 is high-low temperature resistant material or the refractory material compatible mutually with insulating material, comprises glass fibre or nonmetallic mineral.

Described lead 1 is that three groups or three groups of thick core main traverse lines add three groups thin core subpolygons and constitute, and every group of lead is made of many stranded circular copper wires.

The beneficial effects of the utility model are: owing to use technical scheme described in the utility model; particularly in sheath, be provided with belting layer 5, inner protective layer 6, metal sheath 7; the utility model can effectively improve the mechanical tensile strength of cable cover(ing), and minimum tensile strength is from original 5N/mm ²Be increased to 10N/mm ²Cable does not produce interference after screen is set to external world when electric energy transmitting, anti-simultaneously external disturbance performance is preferable; The special instructions for use that the metal armouring layer can satisfy cable is set.

Description of drawings:

The utility model will be further described below in conjunction with drawings and Examples:

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

Fig. 2 is the structural representation of the utility model embodiment 2;

Among the figure: 1, lead; 2, inner insulating layer; 3, external insulation layer: 4, packing material; 5 belting layers; 6, inner protective layer; 7, metal sheath: 8, external protection;

Embodiment:

Embodiment 1: in the utility model embodiment 1; as shown in Figure 1; described silicon-based rubber cable; comprise three groups of leads; insulating barrier; belting layer 5 and sheath; every group of lead is extruded with insulating barrier separately; described insulating barrier is divided into inner insulating layer 2 and external insulation layer 3; divide secondary to extrude by silicon-based rubber and constitute double-decker; each organizes lead wrapped last layer flexible glass fabric strip or wrapped fire-retardant band that has the oxygen barrier effect in the stranding process of tape insulation layer; be placed in the sheath; described sheath is disposed with inner protective layer 6 from inside to outside; metal sheath 7 and external protection 8; described belting layer 5 is provided with each group gap between lead and the insulating material packing material 4 of compatibility mutually; described inner protective layer 6 extrudes for silicon-based rubber or the wrapped formation of high-low temperature resistant material band; described external protection 8 is the silicon-based rubber layer, and described metal sheath 7 is the metal screen layer 7 of copper wire or tinned copper wire braiding.

Embodiment 2: in the utility model embodiment 1, as shown in Figure 2, described silicon-based rubber cable, comprise that three groups of thick core main traverse lines add three groups thin core subpolygons, every group of lead is extruded with insulating barrier separately, the insulating barrier of thick core main traverse line is divided into inner insulating layer 2 and external insulation layer 3, divides secondary to extrude by silicon-based rubber and constitutes double-decker, and thin core subpolygon is only established a layer insulating; Place the packing material compatible mutually during stranding between core with insulating material; the stranding structural arrangement is 3+3 (3 big 3 is little equiangularly arranged) wrapped last layer flexible glass fabric strip or the wrapped fire-retardant band that has the oxygen barrier effect simultaneously; place sheath again; the sheath of sheath is that silicon-based rubber extrudes or the wrapped formation of high-low temperature resistant material band; the metal armouring layer that the armouring last layer is made of steel band or steel wire between sheath and the outer jacket, outermost external protection are by extruding the silicon-based rubber layer of formation.

The utility model also can design other execution modes in conjunction with concrete applicable cases according to technical scheme described in the utility model including, but not limited to the described execution mode of the foregoing description.

Claims

1. silicon-based rubber cable; comprise that three groups and three groups are with upper conductor (1); insulating barrier; belting layer (5) and sheath; it is characterized in that: every group of lead is extruded with insulating barrier separately; described insulating barrier is divided into inner insulating layer (2) and external insulation layer (3); divide secondary to extrude by the heterogeneity silicon-based rubber and constitute double-decker; each lead common wrapped last layer belting layer (5) in the stranding process of organizing the tape insulation layer is placed in the sheath; described sheath is disposed with inner protective layer (6) from inside to outside; metal sheath (7) and external protection (8); gap between described belting layer (5) and each the group lead is provided with packing material (4); described inner protective layer (6) extrudes for silicon-based rubber or the wrapped formation of high-low temperature resistant material band, and described external protection (8) is the silicon-based rubber layer.

2. silicon-based rubber cable according to claim 1 is characterized in that: described metal sheath (7) is a metal screen layer (7), and described metal screen layer (7) is metal knitted silk or the wrapped formation of metal tape.

3. silicon-based rubber cable according to claim 2 is characterized in that: described metal knitted silk is bare copper wire or tinned copper wire, and described metal tape is a copper strips.

4. silicon-based rubber cable according to claim 1 is characterized in that: described metal sheath (7) is the metal armouring layer.

5. silicon-based rubber cable according to claim 1 is characterized in that: described belting layer (5) is thermally resistant fiber glass band or the wrapped formation of fire-retardant band that has the oxygen barrier effect.

6. silicon-based rubber cable according to claim 1 is characterized in that: described packing material (4) comprises glass fibre or nonmetallic mineral for high-low temperature resistant material or the refractory material compatible mutually with insulating material.

7. silicon-based rubber cable according to claim 1 is characterized in that: every group of lead is made of many stranded circular copper wires.

8. silicone rubber for cable according to claim 1 is characterized in that: described lead (1) is that three groups or three groups of thick core main traverse lines add three groups thin core subpolygons and constitute.