CN107731375A - Against weather communication power supply flexible cable - Google Patents

Against weather communication power supply flexible cable Download PDF

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Publication number
CN107731375A
CN107731375A CN201710564286.XA CN201710564286A CN107731375A CN 107731375 A CN107731375 A CN 107731375A CN 201710564286 A CN201710564286 A CN 201710564286A CN 107731375 A CN107731375 A CN 107731375A
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China
Prior art keywords
parts
conducting layer
twisted
aramid fiber
power supply
Prior art date
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Pending
Application number
CN201710564286.XA
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Chinese (zh)
Inventor
王国权
王晨
卞凤贤
沈建新
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Jiangsu Hengtong Wire and Cable Technology Co Ltd
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Jiangsu Hengtong Wire and Cable Technology Co Ltd
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Application filed by Jiangsu Hengtong Wire and Cable Technology Co Ltd filed Critical Jiangsu Hengtong Wire and Cable Technology Co Ltd
Priority to CN201710564286.XA priority Critical patent/CN107731375A/en
Publication of CN107731375A publication Critical patent/CN107731375A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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    • H01B5/08—Several wires or the like stranded in the form of a rope
    • H01B5/10—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material
    • H01B5/102—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core
    • H01B5/105—Several wires or the like stranded in the form of a rope stranded around a space, insulating material, or dissimilar conducting material stranded around a high tensile strength core composed of synthetic filaments, e.g. glass-fibres
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    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H01B7/0208—Cables with several layers of insulating material
    • H01B7/0225—Three or more layers
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    • H01B7/00—Insulated conductors or cables characterised by their form
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    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
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    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
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    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
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Abstract

The present invention discloses a kind of against weather communication power supply flexible cable, including circular aramid fiber core, this circular aramid fiber core outer surface is twisted some " Z " font conductors, and " Z " font conductor described in some forms inner conducting layer, this inner conducting layer outer surface is twisted some trapezoidal conductors, and some trapezoidal conductors form outer conducting layer, one polyethylene insulation band is coated with polyvinyl chloride layer, thermoplastic urethane layers successively from inside to outside around the outer conducting layer outer surface, the polyethylene insulation band outer surface is wrapped in；The thermoplastic urethane layers are composed of the following components：Thermoplastic poly ammonia phenol elastomer, ethylene ethyl acrylate, ethylene-butylene copolymer, silica, butyronitrile compound, haloflex, zinc stannate, magnesium hydroxide, compound molybdenum smoke suppressant, montmorillonite, calcium-zinc composite stabilizing agent, double thioether, zinc stearate.The present invention which greatly reduces vortex, reduces the loss of circuit, improves electric conductivity, bending property and the decay resistance of cable.

Description

Against weather communication power supply flexible cable
Technical field
The present invention relates to a kind of communication power supply cable, more particularly to a kind of against weather communication power supply flexible cable.
Background technology
Against weather communication power supply not only requires good flexibility with flexible cable, so as in narrow space or It is convenient in the case of similar to lay, and preferable anti-flammability is required, to adapt to the use under the harsh occasion of fire-protection rating It is required that.Although being not limited to against weather communication power supply flexible cable exemplified above respectively has corresponding technique effect, deposit In following common shortcoming：First, due to being using twisted thin copper wire as conductor, and this conductor is referred to as five by industry Class copper conductor, thus softness can not meet desired requirement.And limited bending radius due to pliability difference System, thus narrow space, by immovable object hinder so that talk in a roundabout way place etc occasion lay when, easily influence Speed of application；Second, due to generally selecting the conductor by the use of copper as flexible cable under technology prejudice, thus do not only exist reasonable employment Blindness in terms of raw material, and cause the manufacturing cost of flexible cable big；Third, due to heavy weight, thus not only logistics is transported Cost in defeated, storage link is high, and workmen's labor intensity is big in laid processes, consumes cost of labor height；Third, When requiring to improve many indexes such as insulating properties, against weather and fire resistance simultaneously simultaneously, it is difficult to take into account, often lead to Which part index declines or difficult raising；It is fourth, a variety of requiring to improve insulating properties, against weather and fire resistance etc. simultaneously During index, insulating properties, surface abrasion resistance and case hardness are also to be improved.How to solve above-mentioned technical problem turns into ability The direction that field technique personnel make great efforts.
The content of the invention
The present invention provides a kind of against weather communication power supply flexible cable, and the against weather communication power supply is reduced with flexible cable The space of mounting arrangement, reduces installation cost, it is easier to lay；And improve insulating properties, against weather and anti-flammability Can, while it also avoid because materials variances is larger, caused lamination.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of against weather communication power supply flexible cable, bag Circular aramid fiber core is included, this circular aramid fiber core outer surface is twisted some " Z " font conductors, and described in some " Z " font conductor forms inner conducting layer, and this inner conducting layer outer surface is twisted some trapezoidal conductors, and some described trapezoidal Conductor forms outer conducting layer, and a polyethylene insulation band is around the outer conducting layer outer surface is wrapped in, and the polyethylene insulation is with appearance Face is coated with polyvinyl chloride layer, thermoplastic urethane layers successively from inside to outside；" Z " the font conductor strand direction twists for dextrad Close, the trapezoidal conductor strand direction is twisted for left-hand；The circular aramid fiber core it is twisted by some aramid fiber silks and Into the circular aramid fiber core section product is 0.15 ~ 16mm2；
The polyvinyl chloride layer is composed of the following components：
The degree of polymerization is 1000 ~ 1,300 55 parts of polyvinyl-chloride of low-polymerization degree,
The degree of polymerization is 2000 ~ 2,500 45 parts of polychloroethylene with high polymerization degree,
26 parts of diethyl phthalate,
25 parts of trioctyl trimellitate (TOTM),
20 parts of calcium carbonate,
5 parts of calcium ricinoleate,
It is double（3,5- three-level butyl -4- hydroxy phenyls）4.8 parts of thioether,
1.2 parts of stearic acid,
0.9 part of Tissuemat E；
The thermoplastic urethane layers are composed of the following components：
80 ~ 100 parts of thermoplastic poly ammonia phenol elastomer,
8 ~ 15 parts of ethylene ethyl acrylate,
5 ~ 10 parts of ethylene-butylene copolymer,
4 ~ 8 parts of silica,
8 ~ 20 parts of butyronitrile compound,
5 ~ 10 parts of haloflex,
5 ~ 15 parts of zinc stannate,
5 ~ 12 parts of magnesium hydroxide,
Compound 2 ~ 8 parts of molybdenum smoke suppressant,
1 ~ 5 part of montmorillonite,
1 ~ 3 part of calcium-zinc composite stabilizing agent,
1 ~ 3 part of double thioether,
2 ~ 4 parts of zinc stearate.
Further improved technical scheme is as follows in above-mentioned technical proposal：
1. in such scheme, the number of the trapezoidal conductor and the number of " Z " font conductor require true according to the section of conductor It is fixed, at the same can a point multilayer be twisted.
2. in such scheme, the thickness of the inner conducting layer is 0.5 ~ 5mm, and the thickness of the outer conducting layer is 2 ~ 5mm.
3. in such scheme, the sectional area of the inner conducting layer is 1 ~ 240mm2, the sectional area of the outer conducting layer for 4 ~ 120mm2。
Because above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：
1. against weather communication power supply flexible cable of the present invention, its oversheath is by institute's polyvinyl chloride layer and the thermoplastic positioned at outside Property layer of polyurethane composition, the polyvinyl chloride layer include the degree of polymerization be 1000 ~ 1300 50 ~ 70 parts of polyvinyl-chloride of low-polymerization degree, The degree of polymerization be 2000 ~ 2500 35 ~ 45 parts of polychloroethylene with high polymerization degree, 25 ~ 35 parts of diethyl phthalate, trimellitic acid Three 18 ~ 25 parts of monooctyl esters, 20 ~ 30 parts of calcium carbonate, 1 ~ 5 part of calcium ricinoleate are double（3,5- three-level butyl -4- hydroxy phenyls）Thioether 2 ~ 5 Part, 1 ~ 5 part of stearic acid, 0.5 ~ 1 part of Tissuemat E.So that the first restrictive coating combines the advantages of respective, insulating properties, resistance to are improved Climacteric and fire resistance, while it also avoid, because materials variances is larger, caused lamination, improving polyvinyl chloride Layer, thermoplastic urethane layers contact surface compatibility and firmness, improve the reliability and service life of properties of product.
2. against weather communication power supply flexible cable of the present invention, its polyvinyl chloride layer is further pungent using tri trimellitate 18 ~ 25 parts of ester, 20 ~ 30 parts of calcium carbonate, 1 ~ 5 part of calcium ricinoleate are double（3,5- three-level butyl -4- hydroxy phenyls）2 ~ 5 parts of thioether, 1 ~ 5 part of stearic acid, 0.5 ~ 1 part of Tissuemat E；Thermoplastic urethane layers further use 5 ~ 10 parts of ethylene-butylene copolymer, dioxy 4 ~ 8 parts of SiClx, 8 ~ 20 parts of butyronitrile compound, 5 ~ 10 parts of haloflex, improve the first restrictive coating thermal stability result, resistance to spoke According to characteristic, while improve insulating properties, surface abrasion resistance and case hardness, surface cloudy surface matte effect is excellent and reduces material The shrinkage factor of material.
3. against weather communication power supply flexible cable of the present invention, its circular aramid fiber core outer surface is twisted some " Z " font conductor, and " Z " font conductor described in some forms inner conducting layer, this inner conducting layer outer surface is twisted some Trapezoidal conductor, circular aramid fiber core are twisted by some aramid fiber silks so that flexible cable, tensile strength is big, current-carrying Amount is high, pliability is high, flexible, and its close structure, and minimum bending radius declines most 4 times of cable sizes, reduces peace The space of layout is filled, reduces installation cost, it is easier to lay；Secondly, using 2 layers of conductive layer, inner conducting layer is by several " Z " Font conductor strand is formed, and outer conducting layer is formed by several trapezoidal conductor strands, is which greatly reduced vortex, is reduced circuit Loss, improves electric conductivity, bending property and the decay resistance of cable, reduces cable caloric value, can ensure cable Keep continuous electric property stable in long term overloading and overheat.
4. against weather communication power supply flexible cable of the present invention, it is located at the thermoplastic poly ammonia of polyvinyl chloride layer outer surface Ester layer further contains 5 ~ 15 parts of zinc stannate, 5 ~ 12 parts of magnesium hydroxide, compound 2 ~ 8 parts of molybdenum smoke suppressant, 1 ~ 5 part of montmorillonite and and its Its component acts synergistically, and improves Flame Retardancy energy greatly, and it is high to represent the oxygen index (OI) of anti-flammability, and material is being burnt When with good into charcoal effect, form stable hollow compound carbon structure, the second-time burning and flame for preventing material pass Broadcast.
Brief description of the drawings
Accompanying drawing 1 is against weather communication power supply soft cable structure schematic diagram of the present invention；
Accompanying drawing 2 is the partial structural diagram of accompanying drawing 1.
In the figures above：1st, circular aramid fiber core；2nd, inner conducting layer；21st, " Z " font conductor；3rd, outer conducting layer；31、 Trapezoidal conductor；4th, polyethylene insulation band；5th, polyvinyl chloride layer；6th, aramid fiber silk；7th, thermoplastic urethane layers.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment 1 ~ 5：A kind of against weather communication power supply flexible cable, including circular aramid fiber core 1, this circular aramid fiber The outer surface of core 1 is twisted some " Z " font conductors 21, and " Z " font conductor 21 described in some forms inner conducting layer 2, this The outer surface of inner conducting layer 2, which is twisted, some trapezoidal conductors 31, and some trapezoidal formation of conductors 31 outer conducting layers 3, and one Polyethylene insulation band 4 wraps successively from inside to outside around the outer surface of outer conducting layer 3, the outer surface of polyethylene insulation band 4 is wrapped in It is covered with polyvinyl chloride layer 5, thermoplastic urethane layers 7；The direction of lay of " Z " font conductor 21 is twisted for dextrad, described trapezoidal The direction of lay of conductor 31 is twisted for left-hand；The circular aramid fiber core 1 is twisted by some aramid fiber silks 6, described The circular sectional area of aramid fiber core 1 is 0.15 ~ 16mm2。
The number of plies of above-mentioned trapezoidal conductor 31 is 1 ~ 5 layer, and the number of plies of " Z " the font conductor 21 is 1 ~ 3 layer.Every layer is all tight The profile conductor of close combination.
The thickness of above-mentioned inner conducting layer 2 is 0.4 ~ 5mm, and the thickness of the outer conducting layer 3 is 2 ~ 5mm.
The sectional area of above-mentioned inner conducting layer 2 is 1 ~ 240mm2, the sectional area of the outer conducting layer 3 is 4 ~ 120mm2。
Above-mentioned polyvinyl chloride layer 5 is composed of the following components, specific as shown in table 1：
Table 1
Above-mentioned thermoplastic urethane layers 7 are composed of the following components, specific as shown in table 2：
Table 2
Its rated operational voltage is 450~750V and 600~1000V；Long-term work adaptive temperature is：- 20 DEG C~70 DEG C；Most Small-bend radius declines most 4 times of cable sizes.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention.It is all according to the present invention The equivalent change or modification that Spirit Essence is made, it should all be included within the scope of the present invention.

Claims (3)

  1. A kind of 1. against weather communication power supply flexible cable, it is characterised in that：Including circular aramid fiber core（1）, this circular virtue Synthetic fibre fibre core（1）Outer surface is twisted some " Z " font conductors（21）, and " Z " font conductor described in some（21）Formed Inner conducting layer（2）, this inner conducting layer（2）Outer surface is twisted some trapezoidal conductors（31）, and some trapezoidal conductors （31）Form outer conducting layer（3）, a polyethylene insulation band（4）Around being wrapped in the outer conducting layer（3）Outer surface, the polyethylene are exhausted Marginal zone（4）Outer surface is coated with polyvinyl chloride layer successively from inside to outside（5）, thermoplastic urethane layers（7）；" Z " font is led Body（21）Direction of lay is twisted for dextrad, the trapezoidal conductor（31）Direction of lay is twisted for left-hand；The circular aramid fiber Core（1）By some aramid fiber silks（6）It is twisted, the circular aramid fiber core（1）Sectional area is 0.15 ~ 16mm2；
    The polyvinyl chloride layer（5）It is composed of the following components：
    The degree of polymerization is 1000 ~ 1,300 55 parts of polyvinyl-chloride of low-polymerization degree,
    The degree of polymerization is 2000 ~ 2,500 45 parts of polychloroethylene with high polymerization degree,
    26 parts of diethyl phthalate,
    25 parts of trioctyl trimellitate (TOTM),
    20 parts of calcium carbonate,
    5 parts of calcium ricinoleate,
    It is double（3,5- three-level butyl -4- hydroxy phenyls）4.8 parts of thioether,
    1.2 parts of stearic acid,
    0.9 part of Tissuemat E；
    The thermoplastic urethane layers（7）It is composed of the following components：
    80 ~ 100 parts of thermoplastic poly ammonia phenol elastomer,
    8 ~ 15 parts of ethylene ethyl acrylate,
    5 ~ 10 parts of ethylene-butylene copolymer,
    4 ~ 8 parts of silica,
    8 ~ 20 parts of butyronitrile compound,
    5 ~ 10 parts of haloflex,
    5 ~ 15 parts of zinc stannate,
    5 ~ 12 parts of magnesium hydroxide,
    Compound 2 ~ 8 parts of molybdenum smoke suppressant,
    1 ~ 5 part of montmorillonite,
    1 ~ 3 part of calcium-zinc composite stabilizing agent,
    It is double（3,5- three-level butyl -4- hydroxy phenyls）1 ~ 3 part of thioether,
    2 ~ 4 parts of zinc stearate.
  2. 2. against weather communication power supply flexible cable according to claim 1, it is characterised in that：The inner conducting layer（2） Thickness be 0.4 ~ 5.0mm, the outer conducting layer（3）Thickness be 2 ~ 5mm.
  3. 3. against weather communication power supply flexible cable according to claim 1, it is characterised in that：The inner conducting layer（2） Sectional area be 1 ~ 240mm2。
CN201710564286.XA 2015-01-12 2015-01-12 Against weather communication power supply flexible cable Pending CN107731375A (en)

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CN108320849B (en) * 2017-12-26 2020-06-05 安徽天康集团数据线缆有限公司 High self-supporting type shielding suspension wire data cable capable of dissipating heat rapidly
JP6575777B2 (en) * 2018-02-14 2019-09-18 日立金属株式会社 Electrical wire
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