CN104751954A

CN104751954A - Explosion-proof safety circuit multi-conductor armored cable

Info

Publication number: CN104751954A
Application number: CN201510089384.3A
Authority: CN
Inventors: 唐前进
Original assignee: NHUI CONSTANT CRYSTAL CABLE GROUP CO Ltd
Current assignee: NHUI CONSTANT CRYSTAL CABLE GROUP CO Ltd
Priority date: 2015-02-27
Filing date: 2015-02-27
Publication date: 2015-07-01

Abstract

The invention discloses an explosion-proof safety circuit multi-conductor armored cable. The explosion-proof safety circuit multi-conductor armored cable comprises two kinds of cable cores, four heating wires and seven protection layers. The seven protection layers comprise a polyester fiber layer, a polytetrafluoro-polyolefin insulating layer, a silver-plated copper belt shielding layer, a silver-plated copper wire shielding layer, a copper plastic nickel belt composite armor layer, an aluminum belt armor layer and an aluminum belt armor ethylene propylene sheathed layer in sequence from the inside to outside; the two kinds of cable cores comprise two groups of tin plated annealing copper conductor cable cores and two groups of silver plated annealing aluminum alloy conductor cable cores, and the four heating wires are silver plated copper heating wires. The explosion-proof safety circuit multi-conductor armored cable is excellent in shielding performance, featured with low capacitance, low inductance and strong anti-interference performance, difficult to bend, strong in explosion resistance and suitable for the aerospace and the like fields.

Description

A kind of explosion-proof type safety circuit many conductors armoured cable

Technical field

The invention belongs to field of cables, particularly relate to a kind of explosion-proof type safety circuit many conductors armoured cable.

Background technology

Cable has electric conductivity, be widely used in each different field, relating to people's lives, industrial production every field, so the consumption of cable is huge especially, is also important especially, also can be more and more higher to the requirement of quality, but in every field and each area, the quality purposes of cable is required it is different, as in fields such as space flight and aviation, cable is had to the requirement of low electric capacity, low inductance, could be durable in use, satisfy the demand.

Summary of the invention

In order to increase the practicality of prior art, the object of this invention is to provide a kind of explosion-proof strong, explosion-proof type safety circuit many conductors armoured cable of strong, the low electric capacity of shielding properties, low inductance and strong interference immunity.

The present invention takes following technical scheme to realize: a kind of explosion-proof type safety circuit many conductors armoured cable, it comprises two kinds of cable cores, four heating wire and seven layers of protective layer, seven layers of protective layer are followed successively by layer of polyester fiber from inside to outside, polytetrafluoro polyolefin insulation layer, silver-plated copper strips screen, silver-gilt copper wire screen, copper moulds nickel strap composite armor, aluminium strip armour and aluminium strip armouring second propylene restrictive coating, layer of polyester fiber is set to the central core of cable, two kinds of cable cores are respectively zinc-plated annealed copper conductor cable core and silver-plated annealed Al-alloy conductor cable core, two kinds of cable cores are respectively two groups, two groups of silver-plated annealed Al-alloy conductor cable cores, two groups of zinc-plated annealed copper conductor cable core intervals are extruded in polytetrafluoro polyolefin insulation layer symmetrically, between silver-plated copper strips screen and silver-gilt copper wire screen, often organize zinc-plated annealed copper conductor cable core inside and extrude 18 zinc-plated annealed copper conductors and the two-layer silver-gilt copper wire screen of conductor outer wrapping, often organize zinc-plated annealed copper conductor cable core inside and extrude two groups of zinc-plated annealed copper conductor thread cores and two groups of two-layer silver-gilt copper wire screens of conductor thread core outer wrapping, often organize zinc-plated annealed copper conductor thread core inside and extrude five zinc-plated annealed copper conductors, four heating wire are all silver-gilt copper wire heating wire, evenly be extruded between silver-plated copper strips screen and silver-gilt copper wire screen.

The cross-sectional diameter length of described zinc-plated annealed copper conductor is 0.45 ㎜, and the cross-sectional diameter length of silver-plated annealed Al-alloy conductor is 0.65 ㎜.

The present invention has following beneficial effect in sum: this kind of cable has excellent shielding properties, has the feature of low electric capacity, low inductance and strong interference immunity, and not flexible, and explosion-proof is strong, is applicable to being applied to the fields such as Aero-Space.

Accompanying drawing explanation

Fig. 1 is cross-sectional structure schematic diagram of the present invention.

Embodiment

As shown in Figure 1, a kind of explosion-proof type safety circuit many conductors armoured cable, it comprises two kinds of cable cores, four heating wire and seven layers of protective layer, seven layers of protective layer are followed successively by layer of polyester fiber 4 from inside to outside, polytetrafluoro polyolefin insulation layer 5, silver-plated copper strips screen 6, silver-gilt copper wire screen 7, copper moulds nickel strap composite armor 8, aluminium strip armour 9 and aluminium strip armouring second propylene restrictive coating 10, layer of polyester fiber 4 is set to the central core of cable, two kinds of cable cores are respectively zinc-plated annealed copper conductor cable core 1 and silver-plated annealed Al-alloy conductor cable core 2, two kinds of cable cores are respectively two groups, two groups of silver-plated annealed Al-alloy conductor cable cores 1, two groups of zinc-plated annealed copper conductor cable core 2 intervals are extruded in polytetrafluoro polyolefin insulation layer 5 symmetrically, between silver-plated copper strips screen 6 and silver-gilt copper wire screen 7, often organize zinc-plated annealed copper conductor cable core 1 inside and extrude 18 zinc-plated annealed copper conductors and the two-layer silver-gilt copper wire screen of conductor outer wrapping, often organize zinc-plated annealed copper conductor cable core 2 inside and extrude two groups of zinc-plated annealed copper conductor thread cores and two groups of two-layer silver-gilt copper wire screens of conductor thread core outer wrapping, often organize zinc-plated annealed copper conductor thread core inside and extrude five zinc-plated annealed copper conductors, four heating wire are all silver-gilt copper wire heating wire 3, evenly be extruded between silver-plated copper strips screen 6 and silver-gilt copper wire screen 7.

Embodiment: the cross-sectional diameter length of described zinc-plated annealed copper conductor is 0.45 ㎜, the cross-sectional diameter length of silver-plated annealed Al-alloy conductor is 0.65 ㎜.

Outer wrapping one deck polytetrafluoro polyolefin insulation layer 5 of described layer of polyester fiber 4, the silver-plated copper strips screen 6 of outer wrapping one deck of institute's polytetrafluoro polyolefin insulation layer 5, outer wrapping one deck silver-gilt copper wire screen 7 of described silver-plated copper strips screen 6, outer wrapping one deck copper of described silver-gilt copper wire screen 7 moulds nickel strap composite armor 8, described copper moulds outer wrapping one deck aluminium strip armour 9 of nickel strap composite armor 8, outer wrapping one deck aluminium strip armouring second propylene restrictive coating 10 of described aluminium strip armour 9.

Further, this cable allows operational environment maximum temperature to be 95 DEG C, and the minimum temperature of mounting and installation is-10 DEG C; Can stand to exchange 50HZ, 3.5Kv/5min voltage and not breakdown; The shielding rejection coefficient of this cable is less than 0.6.

The above is the embodiment of the present invention, therefore all equivalences done according to structure, feature and the principle described in the present patent application scope change or modify, and are included in patent claim of the present invention.

Claims

1. explosion-proof type safety circuit many conductors armoured cable, it comprises two kinds of cable cores, four heating wire and seven layers of protective layer, it is characterized in that: seven layers of protective layer are followed successively by layer of polyester fiber from inside to outside, polytetrafluoro polyolefin insulation layer, silver-plated copper strips screen, silver-gilt copper wire screen, copper moulds nickel strap composite armor, aluminium strip armour and aluminium strip armouring second propylene restrictive coating, layer of polyester fiber is set to the central core of cable, two kinds of cable cores are respectively zinc-plated annealed copper conductor cable core and silver-plated annealed Al-alloy conductor cable core, two kinds of cable cores are respectively two groups, two groups of silver-plated annealed Al-alloy conductor cable cores, two groups of zinc-plated annealed copper conductor cable core intervals are extruded in polytetrafluoro polyolefin insulation layer symmetrically, between silver-plated copper strips screen and silver-gilt copper wire screen, often organize zinc-plated annealed copper conductor cable core inside and extrude 18 zinc-plated annealed copper conductors and the two-layer silver-gilt copper wire screen of conductor outer wrapping, often organize zinc-plated annealed copper conductor cable core inside and extrude two groups of zinc-plated annealed copper conductor thread cores and two groups of two-layer silver-gilt copper wire screens of conductor thread core outer wrapping, often organize zinc-plated annealed copper conductor thread core inside and extrude five zinc-plated annealed copper conductors, four heating wire are all silver-gilt copper wire heating wire, evenly be extruded between silver-plated copper strips screen and silver-gilt copper wire screen.

2. explosion-proof type safety circuit many conductors armoured cable according to claim 1, is characterized in that: the cross-sectional diameter length of described zinc-plated annealed copper conductor is 0.45 ㎜, and the cross-sectional diameter length of silver-plated annealed Al-alloy conductor is 0.65 ㎜.