CN106710701A

CN106710701A - Aluminium alloy cable

Info

Publication number: CN106710701A
Application number: CN201510496724.4A
Authority: CN
Inventors: 刘军波; 吴彩琴; 刘旭; 韩明伟; 储旭超; 储旭
Original assignee: WUXI CITY QUNXING WIRE AND CABLE CO Ltd
Current assignee: WUXI CITY QUNXING WIRE AND CABLE CO Ltd
Priority date: 2015-08-13
Filing date: 2015-08-13
Publication date: 2017-05-24

Abstract

The invention relates to an aluminium alloy cable which comprises an aluminum alloy wire cores which are pressed by an aluminium alloy conductors to form cylinders. The radial sections of first conductor layer are circular, and the radial sections of second conductor layers are annular. Insulation layers are arranged outside the aluminum alloy wire cores. Shielding layers are arranged outside the insulation layers. Conductive units are formed by the aluminum alloy wire cores, the insulation layers and the shielding layers. At least two conductive units are arranged. A filling layer is arranged outside the conductive units. A wrapping layer is arranged outside the filling layer. A ceramic plastic layer is arranged outside the wrapping layer. An outer sheath layer is arranged outside the ceramic plastic layer. A cable body is formed by the above components, and the diameter of each of the conductive units is 1/4 to 1/3 of that of the cable body. Current is uniformly distributed in a conductor structure, the transmission current is larger, and the fire resistance performance is good.

Description

A kind of aluminium alloy cable

Technical field

The present invention relates to a kind of cable, and in particular to a kind of aluminium alloy cable.

Background technology

Leading products are copper core cables in current wires and cables industry, this cable cost of material Height, shortage of resources, and bauxite resource and rare earth resources comparatively enrich, in order to alleviate copper money The nervous situation in source, making high performance cable using materials such as aluminium alloys can be as one kind very Good solution, and copper alloy also has some defects, such as and cost is higher, mechanical performance It is poor etc..

The content of the invention

Goal of the invention：The invention aims to overcome deficiency of the prior art, there is provided one Plant electric current to be uniformly distributed in conductor structure, transmission electric current is bigger, the good aluminium alloy of fire resistance Cable.

Technical scheme：In order to solve the above-mentioned technical problem, a kind of aluminium alloy electric of the present invention Cable, it includes aluminium alloy core, and the aluminium alloy core is pressed shaping and constituted by aluminium alloy conductor Cylindric, the aluminium alloy core includes the first conductor layer and the second conductor layer, institute from inside to outside It is circle to state the radial section of the first conductor layer, and first conductor layer is by a radial section Circular aluminium alloy conductor composition, the radial section of second conductor layer is annular, described the Two conductor layers are that fan-shaped aluminium alloy conductor is constituted by least two radial sections, are closed in the aluminium Insulating barrier is provided with outside gold thread core, screen layer, the insulating barrier are provided with outside the insulating barrier It is 3 with the thickness ratio of screen layer:1, the insulating barrier is formed with screen layer double-layer coextrusion, described Aluminium alloy core, insulating barrier and screen layer composition conductive unit, the conductive unit at least provided with Two, packed layer is provided with outside the conductive unit, is provided with wrapped outside the packed layer Layer, is provided with ceramic plastic layer, outside the ceramic plastic layer outside the lapping layer External sheath layer is provided with, they constitute cable body, the diameter of the conductive unit accounts for cable body The 1/4-1/3 of diameter.

Second conductor layer is that fan-shaped aluminium alloy conductor is constituted by eight radial sections.

The packed layer is glass fibre packed layer.

The external sheath layer is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.

The conductive unit sets two, and the diameter of the conductive unit accounts for cable body diameter 1/3。

Beneficial effect：Compared with prior art, its remarkable advantage is the present invention：Structure of the present invention Set reasonable, Integral sealing is good, and the aluminium alloy core presses shaping by aluminium alloy conductor, The conductor structure that this layering is pressed can effectively reduce conductor and be produced due to kelvin effect CURRENT DISTRIBUTION it is uneven, the phenomenon that current capacity declines improves effective usable floor area of cable body, So as to improve the current capacity of cable, using ceramic plastic layer, cable is in flame combustion environment Middle porcelain, forms being dielectrically separated from for cable in hot environment, using LSOH anti-flaming polyene Hydrocarbon restrictive coating, any pernicious gas is not produced during burning, environmental protection, the conductive unit sets two It is individual, and the diameter of the conductive unit accounts for the 1/3 of cable body diameter, then by each layer Use cooperatively, conductive unit operation is most steady reliable, and using effect is most preferable, this product entirety Long service life, fire-protection rating is high, applied widely, meets actual operation requirements.

Brief description of the drawings

Fig. 1 is structural representation of the invention.

Specific embodiment

The present invention is further illustrated with reference to the accompanying drawings and examples.

As shown in figure 1, a kind of aluminium alloy cable of the present invention, it includes aluminium alloy core, The aluminium alloy core is pressed shaping and constitutes cylindric by aluminium alloy conductor, the aluminium alloy core Include the first conductor layer 1 and the second conductor layer 2, the footpath of first conductor layer 1 from inside to outside It is circle to section, first conductor layer 1 is that circular aluminium alloy is led by a radial section Body is constituted, and the radial section of second conductor layer 2 is annular, second conductor layer 2 by Eight radial sections are fan-shaped aluminium alloy conductor composition, are provided with outside the aluminium alloy core Insulating barrier 3, is provided with screen layer 4, the insulating barrier 3 and shielding outside the insulating barrier 3 The thickness ratio of layer 4 is 3:1, the insulating barrier 3 is formed with the double-layer coextrusion of screen layer 4, described Aluminium alloy core, insulating barrier 3 and screen layer 4 composition conductive unit, the conductive unit are set Two, packed layer 5 is provided with outside the conductive unit, is provided with outside the packed layer 5 Lapping layer 6, is provided with ceramic plastic layer 7 outside the lapping layer 6, in the ceramic External sheath layer 8 is provided with outside plastic layer 7, they constitute cable body, the conductive unit Diameter accounts for the 1/3 of cable body diameter；The packed layer 5 is glass fibre packed layer；It is described External sheath layer 8 is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.The present invention compared with prior art, Its remarkable advantage is：Rationally, Integral sealing is good, the aluminium alloy wire for structure setting of the present invention Core presses shaping by aluminium alloy conductor, and this conductor structure for pressing that is layered can be effectively reduced The CURRENT DISTRIBUTION that conductor is produced due to kelvin effect is uneven, and the phenomenon that current capacity declines is carried Effective usable floor area of cable body high, so as to improve the current capacity of cable, is moulded using ceramic The bed of material, cable porcelain in flame combustion environment, form the insulation of cable in hot environment every From, using halogen-free and low-smoke flame-retardant polyolefin sheathed layer, any pernicious gas is not produced during burning, Environmental protection, the conductive unit sets two, and the diameter of the conductive unit accounts for cable body The 1/3 of diameter, then using cooperatively by each layer, conductive unit operation are most steady reliable, make Most preferable with effect, this product whole service life is long, and fire-protection rating is high, applied widely, Meet actual operation requirements.

The invention provides a kind of thinking and method, method and the way of the technical scheme are implemented Footpath is a lot, and the above is only the preferred embodiment of the present invention, it is noted that for this skill For the those of ordinary skill in art field, under the premise without departing from the principles of the invention, can be with Some improvements and modifications are made, these improvements and modifications also should be regarded as protection scope of the present invention, Each part being not known in the present embodiment can use prior art to be realized.

Claims

1. a kind of aluminium alloy cable, it is characterised in that：It includes aluminium alloy core, the aluminium Alloy core presses shaping and constitutes cylindric by aluminium alloy conductor, and the aluminium alloy core is by interior Include the first conductor layer (1) and the second conductor layer (2) outward, first conductor layer (1) Radial section is circle, and first conductor layer (1) is circular aluminium by a radial section Alloy conductor is constituted, and the radial section of second conductor layer (2) is annular, described second Conductor layer (2) is that fan-shaped aluminium alloy conductor is constituted by least two radial sections, described Insulating barrier (3) is provided with outside aluminium alloy core, shielding is provided with outside the insulating barrier (3) Layer (4), the insulating barrier (3) is 3 with the thickness ratio of screen layer (4):1, the insulation Layer (3) is formed with screen layer (4) double-layer coextrusion, the aluminium alloy core, insulating barrier (3) With screen layer (4) constitute conductive unit, the conductive unit at least provided with two, described Packed layer (5) is provided with outside conductive unit, lapping layer is provided with outside the packed layer (5) (6) ceramic plastic layer (7), is provided with outside the lapping layer (6), in the ceramics Change and be provided with external sheath layer (8) outside plastic layer (7), they constitute cable body, described to lead The diameter of electric unit accounts for the 1/4-1/3 of cable body diameter.

2. aluminium alloy cable according to claim 1, it is characterised in that：Described second Conductor layer (2) is that fan-shaped aluminium alloy conductor is constituted by eight radial sections.

3. aluminium alloy cable according to claim 1, it is characterised in that：The filling Layer (5) is glass fibre packed layer.

4. aluminium alloy cable according to claim 1, it is characterised in that：The outer shield Jacket layer (8) is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.

5. aluminium alloy cable according to claim 1, it is characterised in that：The conduction Unit sets two, and the diameter of the conductive unit accounts for the 1/3 of cable body diameter.