CN106710684A

CN106710684A - Aluminum-oxide fireproof cable

Info

Publication number: CN106710684A
Application number: CN201510445679.XA
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: 2015-07-27
Filing date: 2015-07-27
Publication date: 2017-05-24

Abstract

The invention relates to an aluminum-oxide fireproof cable comprising conductors. Shielding layers arranged outside the conductors; fireproof layers are arranged outside the shielding layers; the conductors, the shielding layers, and the fireproof layers form conductive units; and at least two conductive units are arranged. A filling layer is arranged outside the conductive units; a first wrapping layer is arranged outside the filling layer; a braiding layer is arranged outside the first wrapping layer, wherein the braiding layer is formed by vertical braiding of fine copper wires and aramid fiber filaments based on a one-to-two connection manner; a second wrapping layer is arranged outside the braiding layer; an aluminum oxide layer is arranged outside the second wrapping layer; and an outer sheath layer is arranged outside the aluminum oxide layer. The above-mentioned units and layers form a cable body. The diameter of the conductor unit is a quarter of to one third of the diameter of the cable body. The aluminum-oxide fireproof cable has advantages of high flexibility and large bending radius; flame bursting can be prevented or flame spreading can be postponed; the fireproof level is high; and the environment protection effect is good.

Description

A kind of aluminum oxide fire-resistant cable

Technical field

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

Background technology

With the fast development of national economy, as the electric wire of national economy sustainer, its Consumption and use scope are increasing.At present, each field is to the quality of electric wire and performance It is required that more and more higher, because the aging and fire that trigger of electric wire, cable is also more and more, how Reduce fire incidence and occur fire when the death rate, fire prevention, environmental protection also turn into electric wire The developing direction of cable industry.

The content of the invention

Goal of the invention：The invention aims to overcome deficiency of the prior art, there is provided one Plant overall flexibility good, bending radius is big, flame can be prevented to occur or delay propagation of flame, prevent Fiery grade is high, the aluminum oxide fire-resistant cable of environmental protection.

Technical scheme：In order to solve the above-mentioned technical problem, a kind of aluminum oxide of the present invention is prevented Thermoelectricity cable, it includes conductor, screen layer is provided with outside the conductor, outside the screen layer Portion is provided with fireprotection layer, the conductor, screen layer and fireprotection layer composition conductive unit, the conduction Unit is provided with packed layer at least provided with two outside the conductive unit, in the packed layer Outside is provided with the first lapping layer, and braiding layer, the braiding are provided with outside first lapping layer Layer by thin copper wire and aramid fiber silk according to 1 repeatedly 2 vertical wovens form, outside the braiding layer Portion is provided with the second lapping layer, alumina layer is provided with outside second lapping layer, in the oxygen Change and be provided with external sheath layer outside aluminium lamination, they constitute cable body, the diameter of the conductive unit Account for the 1/4-1/3 of cable body diameter.

The conductor is anaerobic copper conductor.

The fireprotection layer is inorganic mineral fireprotection layer.

The packed layer is ethylene propylene diene rubber packed layer.

First lapping layer and the second lapping layer are all glass fabric lapping 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 more more stable than fine copper, fine aluminium cable using anaerobic copper conductor, Electrical conductivity is higher, using thin copper wire and the braiding layer and LSOH anti-flaming of aramid fiber silk composition Polyolefin sheath layer, effectively improves the flexibility of Integral cable, and Cable Bending Radius is big, using three First EP rubbers packed layer, filling effect is preferable, it is ensured that each group line during cable distortion Being more uniformly stressed for core, using alumina layer, can prevent flame from occurring or delay flame climing Prolong, using halogen-free and low-smoke flame-retardant polyolefin sheathed layer, further increase overall fire protecting performance, Do not produce any pernicious gas, the conductive unit that two, and the conduction are set during burning Element diameter accounts for the 1/3 of cable body diameter, then using cooperatively by each layer, conductive unit Operation is most steady reliable, and using effect is most preferable, and this product whole service life is long, fire prevention etc. Level 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 aluminum oxide fire-resistant cable of the present invention, it includes conductor 1, Screen layer 2 is provided with outside the conductor 1, fireprotection layer 3 is provided with outside the screen layer 2, The conductor 1, screen layer 2 and fireprotection layer 3 composition conductive unit 4, the conductive unit 4 Two are set, packed layer 5 is provided with outside the conductive unit 4, outside the packed layer 5 Portion is provided with the first lapping layer 6, and braiding layer 7 is provided with outside first lapping layer 6, described Braiding layer 7 by thin copper wire and aramid fiber silk according to 1 repeatedly 2 vertical wovens form, in the volume The second lapping layer 8 is provided with outside tissue layer 7, aluminum oxide is provided with outside second lapping layer 8 Layer 9, is provided with external sheath layer 10 outside the alumina layer 9, and they constitute cable body 11, the diameter of the conductive unit 4 accounts for the 1/3 of the diameter of cable body 11；The conductor 1 It is anaerobic copper conductor；The fireprotection layer 3 is inorganic mineral fireprotection layer；The packed layer 5 is three First EP rubbers packed layer；The lapping layer 8 of first lapping layer 6 and second is all glass fibre Cloth lapping layer；The external sheath layer 10 is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.The present invention Rationally, Integral sealing is more steady than fine copper, fine aluminium cable using anaerobic copper conductor for structure setting Fixed, electrical conductivity is higher, using thin copper wire and the braiding layer and low smoke, zero halogen of aramid fiber silk composition Flame-retardant polyolefin sheathed layer, effectively improves the flexibility of Integral cable, and Cable Bending Radius is big, adopts Ethylene propylene diene rubber packed layer is used, filling effect is preferable, it is ensured that each during cable distortion Being more uniformly stressed for group core, using alumina layer, can prevent flame from occurring or delay fire Flame spreads, and using halogen-free and low-smoke flame-retardant polyolefin sheathed layer, further increases overall fire prevention Performance, does not produce any pernicious gas, the conductive unit to set two, and institute during burning Conductive unit diameter accounts for cable body diameter 1/3, then using cooperatively by each layer are stated, is led Electric unit operation is most steady reliable, and using effect is most preferable, and this product whole service life is long, Fire-protection rating is high, applied widely, meets 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 aluminum oxide fire-resistant cable, it is characterised in that：It includes conductor (1), in institute State and be provided with screen layer (2) outside conductor (1), fire prevention is provided with outside the screen layer (2) Layer (3), the conductor (1), screen layer (2) and fireprotection layer (3) constitute conductive unit (4), The conductive unit (4) is provided with outside the conductive unit (4) and fills out at least provided with two Layer (5) is filled, the first lapping layer (6) is provided with outside the packed layer (5), described the Braiding layer (7) is provided with outside one lapping layer (6), the braiding layer (7) is by thin copper wire and virtue Synthetic fibre filament according to 1 repeatedly 2 vertical wovens form, the is provided with outside the braiding layer (7) Two lapping layers (8), alumina layer (9) is provided with outside second lapping layer (8), External sheath layer (10) is provided with outside the alumina layer (9), they constitute cable body (11), The diameter of the conductive unit (4) accounts for the 1/4-1/3 of cable body (11) diameter.

2. aluminum oxide fire-resistant cable according to claim 1, it is characterised in that：It is described Conductor (1) is anaerobic copper conductor.

3. aluminum oxide fire-resistant cable according to claim 1, it is characterised in that：It is described Fireprotection layer (3) is inorganic mineral fireprotection layer.

4. aluminum oxide fire-resistant cable according to claim 1, it is characterised in that：It is described Packed layer (5) is ethylene propylene diene rubber packed layer.

5. aluminum oxide fire-resistant cable according to claim 1, it is characterised in that：It is described First lapping layer (6) and the second lapping layer (8) are all glass fabric lapping layer.

6. aluminum oxide fire-resistant cable according to claim 1, it is characterised in that：It is described External sheath layer (10) is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.

7. aluminum oxide fire-resistant cable according to claim 1, it is characterised in that：It is described Conductive unit (4) sets two, and the diameter of the conductive unit (4) accounts for cable body (11) The 1/3 of diameter.