CN208796717U - A kind of fire resisting rare earth aluminum alloy power cable - Google Patents

A kind of fire resisting rare earth aluminum alloy power cable Download PDF

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Publication number
CN208796717U
CN208796717U CN201821474602.0U CN201821474602U CN208796717U CN 208796717 U CN208796717 U CN 208796717U CN 201821474602 U CN201821474602 U CN 201821474602U CN 208796717 U CN208796717 U CN 208796717U
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China
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layer
outer circumference
circumference surface
core
rare earth
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CN201821474602.0U
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周玉宝
马玉龙
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Sichuan Mingda wire and Cable Technology Co.,Ltd.
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Mingda Wire & Cable Group (chengdu) Co Ltd
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Abstract

The utility model discloses a kind of fire resisting rare earth aluminum alloy power cables, including several cores, the core is inlayed by several corrugated monofilament to be twisted, the core is arranged with core set, filled layer is equipped between the core set outer circumference surface, the filled layer outer circumference surface is equipped with flame-retardant layer, the flame-retardant layer outer circumference surface is equipped with artificial water skin protective layer, the artificial water skin protective layer outer circumference surface is equipped with armouring aluminium alloy layer, the armouring aluminium alloy layer outer circumference surface is equipped with braid shield, the braid shield outer circumference surface is equipped with low-smoke halogen-free polyolefin layer.The power cable of the utility model has structure simple, cheap, and the advantages that can meet fire protecting performance and flame retardant property very well.

Description

A kind of fire resisting rare earth aluminum alloy power cable
Technical field
The utility model relates to electric power cable fields, more particularly to a kind of fire resisting rare earth aluminum alloy power cable.
Background technique
Annual cable market sales volume is more than 1,000,000,000,000, predominantly copper core cable at present in China, and the copper in China percent 60 The above are import, import copper valence fluctuation income is occupied by west monopsony, totally unfavorable to the economic development in China.Separately Outside, domestic real estate is the second largest cable user for being only second to national grid, and the past uses copper core and aluminium cable substantially, many It is well known: copper core cable reliable in quality, but it is at high cost;For aluminium cable because creep resistant is poor, reliability and service life are undesirable. Aluminium alloy cable is had excellent performance, purchase cost and installation cost less than copper core cable half, since GB/T31840-2015 After promulgation, (national grid and other field not yet thaw) is promoted and used to aluminium alloy cable in real estate domain. But common aluminium alloy cable fire resistance is poor, cannot keep enough conduction time, this reality in a fire for rescue and illumination Fireproofing of cable performance and flame retardant property are designed and are developed with novel pin, especially suitable for residential houses, commercial real estate, The places such as industrial premises, large stadium, mine, subway.
Utility model content
To solve problems of the prior art, it is simple to provide a kind of structure for the utility model, cheap, and energy Enough power cables for meeting fire protecting performance and flame retardant property very well.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of fire resisting rare earth aluminum alloy power cable, including several cores, the core is by several corrugated monofilament It inlays and is twisted, the core is arranged with core set, is equipped with filled layer, the filling between the core set outer circumference surface Layer outer circumference surface is equipped with flame-retardant layer, and the flame-retardant layer outer circumference surface is equipped with artificial water skin protective layer, the artificial water skin protective layer Outer circumference surface is equipped with armouring aluminium alloy layer, and the armouring aluminium alloy layer outer circumference surface is equipped with braid shield, the braiding protection Layer outer circumference surface is equipped with low-smoke halogen-free polyolefin layer.
In above structure, the conductor of this fire resisting rare earth aluminium alloy power cable is led with traditional cable using abnormally-structured The difference of body structure is larger, and the conductor of common power cable presses structure using circle, and the utility model cable conductor monofilament Using corrugated, each corrugated single line is set into a circle when conductor strand, the advantages of this structure is to press Coefficient is very high, advantageous to the transmission of low-frequency and low-voltage cable current.Around inhibiting tape of double-baging after insulated wire cores stranding, in outer layer of cable core With the wrapped one layer of aluminium alloy layer of chain armoured process, mechanical protection was both played the role of and flame is prevented to invade, while can also Guarantee cable free bend;Low smoke and zero halogen oversheath is extruded outside armor, in case cable generates toxic and harmful gas in a fire, It is equipped with artificial water skin protective layer in flame-retardant layer outer layer, the artificial water skin protective layer is made of ageing-resistant cortex.It is described ageing-resistant Artificial water skin protective layer made of cortex, artificial water skin protective layer have corrosion resistance and flexibility, ensure that the practical fortune of cable Bending in, artificial water skin protective layer also have waterproofness, have added one to ensure again to the waterproofness of cable.
Preferably, the core set is extruded by wrapped inorganic fire proof material and plastics is constituted, and inorganic fire proof material includes pottery Porcelain band and mica band, wrapped ceramics band with a thickness of 0.2mm, wrapped mica band with a thickness of 0.14mm, split-phase is squeezed Packet plastic material is crosslinked polyethylene, cross-linked polyethylene layer thickness between 0.7-2.0mm, core set using ceramic fibre strip and Mica tape+split-phase crosslinked polyethylene extrudes, and ceramics and mica have high temperature resistant, fireproof advantage.
Preferably, the braid shield includes more nickel plating copper wires, the cloth that nickel plating copper wire described in more mutually weaves Set on the outer surface of the braid shield, and the count of more nickel plating copper wires is greater than 0.85, has good shielding Energy and mechanical performance, while there is good flexibility again, facilitate the use of cable.
Preferably, the core set is outer is coated with modified organic silicon paint layer, so that cable core is inherently provided with centainly Fire-proof high-temperature resistant performance.
Beneficial effect is:
1, the utility model patent product has excellent performance, can satisfy and uses under very harsh environment, right The safety of life and property of the people has good protective effect;
2, the conductor of this fire resisting rare earth aluminium alloy power cable uses abnormally-structured, distinguishes with traditional cable conductor structural Larger, the conductor of common power cable presses structure using circle, and the utility model cable conductor monofilament uses corrugated, Each corrugated single line is set into a circle when conductor strand, the advantages of this structure is that tightening factor is very high, right The transmission of low-frequency and low-voltage cable current is advantageous;
3, core set is extruded using ceramic fibre strip and Mica tape+split-phase crosslinked polyethylene, ceramics and mica With high temperature resistant, fireproof advantage;
4, the core set is outer is coated with modified organic silicon paint layer, so that cable core is inherently provided with certain fire prevention Performance resistant to high temperature.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model embodiment 1.
Appended drawing reference: 1, low-smoke halogen-free polyolefin layer;2, braid shield;3, armouring aluminium alloy layer;4, artificial water skin is protected Sheath;5, filled layer;6, core set;7, core;8, flame-retardant layer.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
Embodiment 1:
As shown in Figure 1, a kind of fire resisting rare earth aluminum alloy power cable, including several cores 7, core 7 is by several watts Stupefied shape monofilament, which is inlayed, to be twisted, and monofilament is rare earth aluminum alloy material, and rare earth element can reduce the content of silicon in aluminium solid solution, from And the influence by iron, especially silicon to aluminium alloy conductivity is decreased to extremely low level, while the addition of rare earth element also changes The institutional framework of crystal in aluminum alloy materials has been apt to it, has improved the processing performance of aluminium alloy, has been conducive to the working process of aluminium alloy. Furthermore the resistance to corrosion of aluminium alloy is greatly improved, service life is increased, core 7 is arranged with core set 6, core set 6 It is extruded and is constituted by wrapped inorganic fire proof material and plastics, inorganic fire proof material includes ceramic band and mica band, wrapped ceramics Band with a thickness of 0.2mm, wrapped mica band with a thickness of 0.14mm, it is crosslinked polyethylene that split-phase, which extrudes plastic material, is handed over Join polyethylene layer thickness between 1.2mm, core set 6 is squeezed using ceramic fibre strip and Mica tape+split-phase crosslinked polyethylene It wraps, ceramics and mica have high temperature resistant, fireproof advantage, and core, which covers, is equipped with filled layer 5, filled layer 5 between 6 outer circumference surfaces Interior filling fire-retardant fireproof material, 5 outer circumference surface of filled layer are equipped with flame-retardant layer 8, and for flame-retardant layer 8 with a thickness of 0.2mm, double-layer overlapping is wrapped It constitutes, wrapped overlap rate is 20%, and 8 outer circumference surface of flame-retardant layer is equipped with artificial water skin protective layer 4, artificial 4 outer circle of water skin protective layer Circumferential surface is equipped with armouring aluminium alloy layer 3, and 3 outer circumference surface of armouring aluminium alloy layer is equipped with braid shield 2, and braid shield 2 includes more Root nickel plating copper wire, the outer surface for being laid in braid shield 2 that more nickel plating copper wires mutually weave, and more nickel plating copper wires Count is greater than 0.85, has good shielding properties and mechanical performance, while having good flexibility again, facilitates cable Use, the low-smoke halogen-free polyolefin that a layer thickness is 1.8-3.0mm is extruded outside armor.
In above structure, the conductor of this fire resisting rare earth aluminium alloy power cable is led with traditional cable using abnormally-structured The difference of body structure is larger, and the conductor of common power cable presses structure using circle, and the utility model cable conductor monofilament Using corrugated, each corrugated single line is set into a circle when conductor strand, the advantages of this structure is to press Coefficient is very high, advantageous to the transmission of low-frequency and low-voltage cable current.Around inhibiting tape of double-baging after 7 stranding of insulated wire cores, outside cable core The layer wrapped one layer of aluminium alloy layer of chain armoured process had both played the role of mechanical protection and flame is prevented to invade, simultaneously also It can guarantee cable free bend;Low smoke and zero halogen oversheath is extruded outside armor, in case cable generates poisonous and harmful gas in a fire Body is equipped with artificial water skin protective layer 4 in 8 outer layer of flame-retardant layer, and artificial water skin protective layer 4 is made of ageing-resistant cortex.Ageing-resistant skin Artificial water skin protective layer 4 made of matter, artificial water skin protective layer 4 have corrosion resistance and flexibility, ensure that the practical fortune of cable Bending in, artificial water skin protective layer 4 also have waterproofness, have added one to ensure again to the waterproofness of cable.
Compared with prior art, the utility model patent product has excellent performance, can satisfy very harsh In the environment of use, there is good protective effect to the safety of life and property of the people.
Embodiment 2:
Embodiment 2 is on the basis of embodiment 1, modified organic silicon paint layer to be coated with outside core set 6, so that cable core 7 are inherently provided with the performance of certain fire-proof high-temperature resistant, further promote the high temperature resistance of the utility model power cable.
Remaining structure and working principle of embodiment 2 is the same as embodiment 1.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change And improvement, these various changes and improvements fall within the scope of the claimed invention.

Claims (4)

1. a kind of fire resisting rare earth aluminum alloy power cable, which is characterized in that including several cores, the core is by several watts Stupefied shape monofilament, which is inlayed, to be twisted, and the core is arranged with core set, is equipped with filled layer between the core set outer circumference surface, The filled layer outer circumference surface is equipped with flame-retardant layer, and the flame-retardant layer outer circumference surface is equipped with artificial water skin protective layer, the artificial water Skin protective layer outer circumference surface is equipped with armouring aluminium alloy layer, and the armouring aluminium alloy layer outer circumference surface is equipped with braid shield, described Braid shield outer circumference surface is equipped with low-smoke halogen-free polyolefin layer.
2. a kind of fire resisting rare earth aluminum alloy power cable according to claim 1, which is characterized in that the core set by around Packet inorganic fire proof material and plastics extrude composition, and inorganic fire proof material includes ceramic band and mica band, wrapped ceramics band With a thickness of 0.2mm, wrapped mica band with a thickness of 0.14mm, it is crosslinked polyethylene that split-phase, which extrudes plastic material, and crosslinking is poly- Pvdf layer thickness is between 0.7-2.0mm.
3. a kind of fire resisting rare earth aluminum alloy power cable according to claim 1, which is characterized in that the braid shield Including more nickel plating copper wires, the outer surface for being laid in the braid shield that nickel plating copper wire described in more mutually weaves, and The count of more nickel plating copper wires is greater than 0.85.
4. a kind of fire resisting rare earth aluminum alloy power cable according to claim 1, which is characterized in that the core set applies outside It is covered with modified organic silicon paint layer.
CN201821474602.0U 2018-09-10 2018-09-10 A kind of fire resisting rare earth aluminum alloy power cable Active CN208796717U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821474602.0U CN208796717U (en) 2018-09-10 2018-09-10 A kind of fire resisting rare earth aluminum alloy power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821474602.0U CN208796717U (en) 2018-09-10 2018-09-10 A kind of fire resisting rare earth aluminum alloy power cable

Publications (1)

Publication Number Publication Date
CN208796717U true CN208796717U (en) 2019-04-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821474602.0U Active CN208796717U (en) 2018-09-10 2018-09-10 A kind of fire resisting rare earth aluminum alloy power cable

Country Status (1)

Country Link
CN (1) CN208796717U (en)

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Address after: No. 2555, Longhu Avenue, East Industrial Zone, Xindu District, Chengdu, Sichuan 610501

Patentee after: Sichuan Mingda wire and Cable Technology Co.,Ltd.

Address before: No. 2555, Longhu Avenue, East Industrial Zone, Xindu District, Chengdu, Sichuan 610501

Patentee before: MINGDA WIRE AND CABLE GROUP (CHENGDU) CO.,LTD.