CN203520907U

CN203520907U - Butyronitrile insulating special cable resistant to low temperature

Info

Publication number: CN203520907U
Application number: CN201320601176.3U
Authority: CN
Inventors: 沈学忠
Original assignee: Anhui Hua Tian Cable Co Ltd
Current assignee: Anhui Hua Tian Cable Co Ltd
Priority date: 2013-09-27
Filing date: 2013-09-27
Publication date: 2014-04-02
Anticipated expiration: 2023-09-27

Abstract

The utility model discloses a butyronitrile insulating special cable resistant to low temperature. The special cable is composed of a main cable core, an inner insulating layer, an outer insulating layer, a tin-coated copper wire shielding layer, an aluminum tape armored layer and a low-smoke halogen-free polyolefin sheath layer. The inner insulating layer is wrapped outside the main cable core, the outer insulating layer is wrapped outside the inner insulating layer, the two insulating layers are butyronitrile insulating layers, the tin-coated copper wire shielding layer is wrapped outside the outer insulating layer, nickel conductors are extruded in the inner insulating layer, and aluminum conductors are extruded in the outer insulating layer. The cable has the advantages of excellent conductive performance, excellent aging resistance and excellent insulating property, and the cable also has the advantages of being resistant to the low temperature and cold, and the cable can be widely applied to aerospace, electric power, tunnel and other fields.

Description

A kind of low temperature resistant butyronitrile insulation special cable

Technical field

The utility model belongs to field of cables, relates in particular to a kind of low temperature resistant butyronitrile insulation special cable.

Background technology

At present, along with Chinese society expanding economy, electric wire consumption increases rapidly, the quality requirement of cable is also constantly improved, such as the cable using in the fields such as aviation, electric power and tunnel, to the electric conductivity of cable and resistance to ag(e)ing, insulation property, low temperature resistant cold-resistant, resistance to wear aspect and security reliability aspect require all high especially.

Utility model content

In order to overcome the defect of above-mentioned prior art, the purpose of this utility model is to provide a kind of low temperature resistant butyronitrile insulation special cable with good low temperature resistant cold-resistant characteristic.

The utility model takes following technical scheme to realize: a kind of low temperature resistant butyronitrile insulation special cable, it is by master core, inner insulating layer, external insulation layer, tinned copper wire screen, aluminium strip armour and low-smoke halogen-free polyolefin restrictive coating form, outside described master core, be enclosed with one deck inner insulating layer, outside described inner insulating layer, be enclosed with one deck external insulation layer, dielectric layers is all butyronitrile insulating barrier, outside described external insulation layer, be enclosed with one deck tinned copper wire screen, described inner insulating layer inside is extruded with nickel conductor, described external insulation layer inside is extruded with aluminium conductor.

Described master core by seven copper conductor cores, be wrapped in seven copper strips armour and shield sheath layers outside copper conductor core and form.

The utlity model has in sum following beneficial effect: the utlity model has good electric conductivity and resistance to ag(e)ing, insulation property are superior, also there is low temperature resistant cold-resistant characteristic, be widely used in the fields such as aviation, electric power and tunnel.

Accompanying drawing explanation

Fig. 1 is the utility model cross-sectional structure schematic diagram;

Wherein: 1, master core; 2, inner insulating layer; 21, nickel conductor; 3, external insulation layer; 31, aluminium conductor; 4, tinned copper wire screen; 5, aluminium strip armour; 6, low-smoke halogen-free polyolefin restrictive coating.

Embodiment

As shown in Figure 1, a kind of low temperature resistant butyronitrile insulation special cable, it is comprised of master core 1, inner insulating layer 2, external insulation layer 3, tinned copper wire screen 4, aluminium strip armour 5 and low-smoke halogen-free polyolefin restrictive coating 6, outside described master core 1, be enclosed with one deck inner insulating layer 2, outside described inner insulating layer 2, be enclosed with one deck external insulation layer 3, dielectric layers is all butyronitrile insulating barrier, outside described external insulation layer 3, be enclosed with one deck tinned copper wire screen 4, described inner insulating layer 2 inside are extruded with nickel conductor 21, and described external insulation layer 3 inside are extruded with aluminium conductor 31.

Embodiment: master core 1 by seven copper conductor cores, be wrapped in seven copper strips armour and shield sheath layers outside copper conductor core and form.

It is 70 ℃ that this cable allows operational environment maximum temperature; The permission bending radius of this cable is the outside diameter of cable 10 times.

The above is embodiment of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model application range therefore all changes or modifies, and is included in the utility model patent claim.

Claims

1. a low temperature resistant butyronitrile insulation special cable, it is comprised of master core, inner insulating layer, external insulation layer, tinned copper wire screen, aluminium strip armour and low-smoke halogen-free polyolefin restrictive coating, it is characterized in that: outside described master core, be enclosed with one deck inner insulating layer, outside described inner insulating layer, be enclosed with one deck external insulation layer, dielectric layers is all butyronitrile insulating barrier, outside described external insulation layer, be enclosed with one deck tinned copper wire screen, described inner insulating layer inside is extruded with nickel conductor, and described external insulation layer inside is extruded with aluminium conductor.

2. low temperature resistant butyronitrile insulation special cable according to claim 1, is characterized in that: described master core by seven copper conductor cores, be wrapped in seven copper strips armour and shield sheath layers outside copper conductor core and form.