CN104795136A - High-flame-retardance power cable for supplying power for telecommunication equipment - Google Patents
High-flame-retardance power cable for supplying power for telecommunication equipment Download PDFInfo
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- CN104795136A CN104795136A CN201510014155.5A CN201510014155A CN104795136A CN 104795136 A CN104795136 A CN 104795136A CN 201510014155 A CN201510014155 A CN 201510014155A CN 104795136 A CN104795136 A CN 104795136A
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Abstract
The invention discloses a high-flame-retardance power cable for supplying power for telecommunication equipment. The high-flame-retardance power cable for supplying the power for the telecommunication equipment comprises an inner conductive layer and an outer conductive layer, wherein the inner conductive layer is formed by a plurality of trapezoidal conductors; the outer conductive layer is formed by a plurality of 'Z'-shaped conductors; a polyethylene insulation strap wraps the outer surface of the outer conductive layer in a lapping manner; a polyolefin insulating sheath layer wraps the outer surface of a glass tape; a fire-resistant mica tape wraps outer surfaces of three conductive cores in a lapping manner; and an insulating sheath layer wraps the outer surface of the fire-resistant mica tape and comprises thermoplastic polyurethane elastomer, low-density polyethylene, ethylene-ethyl acrylate, ethylene-butylene copolymer, silicon dioxide, butyronitrile compound, chlorinated polyethylene, zinc stannate and magnesium hydroxide. The conductive performance of the cable is improved, the current-carrying capacity of the cable is increased by 10% or so, the power cable does not combust, is high in heat resistance and is tight and airtight, so that a stable hollow composite carbon structure is formed during combustion of the cable, and secondary combustion and flame propagation of materials are stopped.
Description
Technical field
The present invention relates to a kind of communication power supply cable, particularly relate to a kind of high flame retardant power supply cable of powering for telecommunication apparatus.
Background technology
Along with the quick propelling of 4G application, the communication power supply flexible cable of base station construction obtains a large amount of popularizations and application, is mainly used in the power supply exchanging rack and connects.Communication power supply flexible cable not only requires to have good flexibility, conveniently to lay in narrow space or when similar, and requires to have desirable anti-flammability, to adapt to the instructions for use under the harsh occasion of fire-protection rating.
Although the communication power supply flexible cable being not limited to exemplify above respectively has corresponding technique effect, but there is following common shortcoming: one, due to all using stranded thin copper wire as conductor, and this conductor is called five class copper conductors by industry, and thus softness can not meet the desired requirement.And due to pliability difference, bending radius is restricted, thus narrow space, to hinder by immovable object so the occasion at the place of talking in a roundabout way and so on is laid time, very easily affect speed of application; Its two, due to generally select under technology prejudice with copper as the conductor of flexible cable, thus not only there is the blindness of reasonable employment raw material aspect, and cause the manufacturing cost of flexible cable large; Its three, due to heavy weight, the cost thus not only in logistics transportation, storage link is high, and workmen's labour intensity is large in laid processes, to consume cost of labor high.
Summary of the invention
The invention provides a kind of high flame retardant power supply cable of powering for telecommunication apparatus, this flame retardant type multi-core power flexible cable improves electric conductivity, the ampacity raising about 10% of cable, and do not burn, heat resistance is high, closely not easily breathe freely, thus make cable define stable hollow activated carbon composite structure, prevent second-time burning and the flame propagation of material.
For achieving the above object, the technical solution used in the present invention is: a kind of high flame retardant power supply cable of powering for telecommunication apparatus, comprise three conductor wire cores, this conductor wire core comprises circular aramid fiber core further, this circular aramid fiber core outer surface is stranded some trapezoidal conductors, and some described trapezoidal conductors form inner conducting layer, this inner conducting layer outer surface is stranded some " Z " font conductors, and " Z " font conductor described in some forms outer conducting layer, a polyethylene insulation band is wrapped in described outer conducting layer outer surface;
One fire resistant flame retardant layer is coated on described polyethylene insulation band outer surface, this fire resistant flame retardant layer is made up of mica paper, the first glass-fiber-fabric and the second glass-fiber-fabric, this mica paper and being bonded by adhesive layer between the first glass-fiber-fabric and the second glass-fiber-fabric, one glass tape is wrapped in described fire resistant flame retardant layer outer surface, the coated polyolefin insulation restrictive coating of described glass tape outer surface; One fire-resistant isinglass belt is wrapped is overlying on three described conductor wire core outer surfaces, and described fire-resistant isinglass belt outer surface is coated with insulating jacket layer;
Described insulating jacket layer is composed of the following components:
80 ~ 100 parts, thermoplastic poly ammonia phenol elastomer,
Melt index is the low density polyethylene (LDPE) 10 ~ 20 parts of 1 ~ 8g/10min,
Ethylene ethyl acrylate 8 ~ 15 parts,
Ethylene-butylene copolymer 5 ~ 10 parts,
Silicon dioxide 4 ~ 8 parts,
Butyronitrile compound 8 ~ 20 parts,
Haloflex 5 ~ 10 parts,
Zinc 5 ~ 15 parts,
Magnesium hydroxide 5 ~ 12 parts,
Compound molybdenum smoke suppressant 2 ~ 8 parts,
Imvite 1 ~ 5 part,
Calcium-zinc composite stabilizing agent 1 ~ 3 part,
Two (3,5-, tri-grades of butyl-4-hydroxy phenyls) thioether 1 ~ 3 part,
Zinc stearate 2 ~ 4 parts.
The technical scheme improved further in technique scheme is as follows:
1. in such scheme, the thickness of described inner conducting layer is 0.4 ~ 5mm, and the thickness of described outer conducting layer is 2 ~ 5mm.
2., in such scheme, described circular aramid fiber core sectional area is 0.15 ~ 16mm
2.
3. in such scheme, described trapezoidal conductor strand direction is that dextrad is stranded, and described " Z " font conductor strand direction is that left-hand is stranded.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. the present invention is used for the high flame retardant power supply cable that telecommunication apparatus is powered, its insulating jacket layer comprises 80 ~ 100 parts, thermoplastic poly ammonia phenol elastomer, the melt index of collocation is the low density polyethylene (LDPE) 10 ~ 20 parts of 1 ~ 8g/10min, ethylene ethyl acrylate 8 ~ 15 parts, calcium-zinc composite stabilizing agent 1 ~ 3 part, two (3, 5-tri-grades of butyl-4-hydroxy phenyls) thioether 1 ~ 3 part, zinc stearate 2 ~ 4 parts, ethylene-butylene copolymer 5 ~ 10 parts, silicon dioxide 4 ~ 8 parts, haloflex 5 ~ 10 parts, the first restrictive coating is made to combine respective advantage, improve weatherability and fire resistance, stabilizing effect, radiotolerant characteristic, improve insulation property simultaneously, surface abrasion resistance and case hardness, surface cloudy surface matte effect is excellent and reduce the shrinkage of material, secondly, insulating jacket layer is further containing zinc 5 ~ 15 parts, magnesium hydroxide 5 ~ 12 parts, compound molybdenum smoke suppressant 2 ~ 8 parts, imvite 1 ~ 5 part also acts synergistically with other component, butyronitrile compound 8 ~ 20 parts, improve greatly Flame Retardancy energy, the oxygen index representing anti-flammability is high, and makes material have good one-tenth charcoal effect when burning, define stable hollow activated carbon composite structure, prevent second-time burning and the flame propagation of material.
2. the present invention is used for the high flame retardant power supply cable that telecommunication apparatus is powered, adopt 2 layers of conductive layer, inner conducting layer is formed by several " Z " font conductor strand, outer conducting layer is formed by several trapezoidal conductor strand, which greatly reduce eddy current, reduce the loss of circuit, improve the electric conductivity of cable, ampacity improves about 10%; Secondly, fire resistant flame retardant layer is coated on polyethylene insulation band outer surface, this fire resistant flame retardant layer is made up of mica paper, the first glass-fiber-fabric and the second glass-fiber-fabric, this mica paper and being bonded by adhesive layer between the first glass-fiber-fabric and the second glass-fiber-fabric, one glass tape is wrapped in fire resistant flame retardant layer outer surface, do not burn, heat resistance is high, closely not easily breathe freely, thus make cable have high temperature resistant, flame resistant, not Halogen, not smoking property.
3. the present invention is used for the high flame retardant power supply cable that telecommunication apparatus is powered, its circular aramid fiber core outer surface is stranded some " Z " font conductors, and some " Z " font conductors form inner conducting layer, this inner conducting layer outer surface is stranded some trapezoidal conductors, circular aramid fiber core is closed by some aramid fiber skein silks and forms, make flexible cable, tensile strength is large, ampacity is high, pliability is high, flexible, and its close structure, minimum bending radius decline most 4 times of cable sizes, reduce the space of mounting arrangement, reduce installation cost, be easier to lay.
Accompanying drawing explanation
The high flame retardant power supply cable structure schematic diagram that accompanying drawing 1 is powered for telecommunication apparatus for the present invention;
Accompanying drawing 2 is fire resistant flame retardant Rotating fields schematic diagram in flame retardant type multi-core power flexible cable of the present invention.
In above accompanying drawing: 1, circular aramid fiber core; 2, inner conducting layer; 21, " Z " font conductor; 3, outer conducting layer; 31, trapezoidal conductor; 4, polyethylene insulation band; 5, fire resistant flame retardant layer; 51, mica paper; 52, the first glass-fiber-fabric; 53, the second glass-fiber-fabric; 54, adhesive layer; 6, glass tape; 7, polyolefin insulation restrictive coating; 8, conductor wire core; 9, fire-resistant isinglass belt; 10, insulating jacket layer.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment 1 ~ 5: a kind of high flame retardant power supply cable of powering for telecommunication apparatus, comprise three conductor wire cores 8, this conductor wire core 8 comprises circular aramid fiber core 1 further, this circular aramid fiber core 1 outer surface is stranded some trapezoidal conductors 21, and some described trapezoidal conductors 21 form inner conducting layer 2, this inner conducting layer 2 outer surface is stranded some " Z " font conductors 31, and " Z " font conductor 31 forms outer conducting layer 3 described in some, a polyethylene insulation band 4 is wrapped in described outer conducting layer 3 outer surface;
One fire resistant flame retardant layer 5 is coated on described polyethylene insulation band 4 outer surface, this fire resistant flame retardant layer 5 is made up of mica paper 51, first glass-fiber-fabric 52 and the second glass-fiber-fabric 53, this mica paper 51 and being bonded by adhesive layer 54 between the first glass-fiber-fabric 52 and the second glass-fiber-fabric 53, one glass tape 6 is wrapped in described fire resistant flame retardant layer 5 outer surface, the coated polyolefin insulation restrictive coating 7 of described glass tape 6 outer surface; One fire-resistant isinglass belt 9 is wrapped is overlying on three described conductor wire core 8 outer surfaces, and described fire-resistant isinglass belt 9 outer surface is coated with insulating jacket layer 10;
Above-mentioned insulating jacket layer 10 is composed of the following components, specifically as shown in table 1:
Table 1
Above-mentioned trapezoidal conductor 21 direction of lay is that dextrad is stranded, and described " Z " font conductor 31 direction of lay is that left-hand is stranded.
The thickness of above-mentioned inner conducting layer 2 is 0.4 ~ 5mm, and the thickness of described outer conducting layer 3 is 2 ~ 5mm.
Above-mentioned circular aramid fiber core 1 sectional area is 0.15 ~ 16mm
2.
Above-mentioned trapezoidal conductor 21 direction of lay is that dextrad is stranded, and described " Z " font conductor 31 direction of lay is that left-hand is stranded.
The high flame retardant power supply cable performance of powering for telecommunication apparatus of embodiment 1 ~ 5 is in table 2:
Table 2
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (4)
1. a high flame retardant power supply cable of powering for telecommunication apparatus, it is characterized in that: comprise three conductor wire cores (8), this conductor wire core (8) comprises circular aramid fiber core (1) further, circular aramid fiber core (1) outer surface is stranded some trapezoidal conductors (21) for this, and some described trapezoidal conductors (21) form inner conducting layer (2), this inner conducting layer (2) outer surface is stranded some " Z " fonts conductor (31), and " Z " font conductor (31) described in some forms outer conducting layer (3), one polyethylene insulation band (4) is wrapped in described outer conducting layer (3) outer surface,
One fire resistant flame retardant layer (5) is coated on described polyethylene insulation band (4) outer surface, this fire resistant flame retardant layer (5) is made up of mica paper (51), the first glass-fiber-fabric (52) and the second glass-fiber-fabric (53), this mica paper (51) and being bonded by adhesive layer (54) between the first glass-fiber-fabric (52) and the second glass-fiber-fabric (53), one glass tape (6) is wrapped in described fire resistant flame retardant layer (5) outer surface, the coated polyolefin insulation restrictive coating (7) of described glass tape (6) outer surface; One fire-resistant isinglass belt (9) is wrapped is overlying on three described conductor wire core (8) outer surfaces, and described fire-resistant isinglass belt (9) outer surface is coated with insulating jacket layer (10);
Described insulating jacket layer (10) is composed of the following components:
80 ~ 100 parts, thermoplastic poly ammonia phenol elastomer,
Melt index is the low density polyethylene (LDPE) 10 ~ 20 parts of 1 ~ 8g/10min,
Ethylene ethyl acrylate 8 ~ 15 parts,
Ethylene-butylene copolymer 5 ~ 10 parts,
Silicon dioxide 4 ~ 8 parts,
Butyronitrile compound 8 ~ 20 parts,
Haloflex 5 ~ 10 parts,
Zinc 5 ~ 15 parts,
Magnesium hydroxide 5 ~ 12 parts,
Compound molybdenum smoke suppressant 2 ~ 8 parts,
Imvite 1 ~ 5 part,
Calcium-zinc composite stabilizing agent 1 ~ 3 part,
Two (3,5-, tri-grades of butyl-4-hydroxy phenyls) thioether 1 ~ 3 part,
Zinc stearate 2 ~ 4 parts.
2. flame retardant type multi-core power flexible cable according to claim 1, is characterized in that: the thickness of described inner conducting layer (2) is 0.4 ~ 5mm, and the thickness of described outer conducting layer (3) is 2 ~ 5mm.
3. flame retardant type multi-core power flexible cable according to claim 1, is characterized in that: described circular aramid fiber core (1) sectional area is 0.15 ~ 16mm
2.
4. flame retardant type multi-core power flexible cable according to claim 1, is characterized in that: described trapezoidal conductor (21) direction of lay is that dextrad is stranded, and described " Z " font conductor (31) direction of lay is that left-hand is stranded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014155.5A CN104795136B (en) | 2015-01-12 | 2015-01-12 | High-flame-retardance power cable for supplying power for telecommunication equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014155.5A CN104795136B (en) | 2015-01-12 | 2015-01-12 | High-flame-retardance power cable for supplying power for telecommunication equipment |
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| CN104795136A true CN104795136A (en) | 2015-07-22 |
| CN104795136B CN104795136B (en) | 2017-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799210A (en) * | 2016-08-30 | 2018-03-13 | 江苏亨通线缆科技有限公司 | Communicate the distribution system flexible cable of resistance to irradiation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07262827A (en) * | 1994-03-23 | 1995-10-13 | Hitachi Cable Ltd | Stranded conductor for power transmission line and its manufacture |
| CN202487246U (en) * | 2012-03-07 | 2012-10-10 | 远东电缆有限公司 | High-strength high-capacity aerial insulated cable |
| CN202855416U (en) * | 2012-07-26 | 2013-04-03 | 江苏亨通线缆科技有限公司 | Fire-resistant shield flexible cable used for communication power supply |
| CN104031328A (en) * | 2014-04-30 | 2014-09-10 | 中广核三角洲（江苏）塑化有限公司 | High-flame-retardation low-smoke PVC composite material for booster cables, and preparation method thereof |
-
2015
- 2015-01-12 CN CN201510014155.5A patent/CN104795136B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07262827A (en) * | 1994-03-23 | 1995-10-13 | Hitachi Cable Ltd | Stranded conductor for power transmission line and its manufacture |
| CN202487246U (en) * | 2012-03-07 | 2012-10-10 | 远东电缆有限公司 | High-strength high-capacity aerial insulated cable |
| CN202855416U (en) * | 2012-07-26 | 2013-04-03 | 江苏亨通线缆科技有限公司 | Fire-resistant shield flexible cable used for communication power supply |
| CN104031328A (en) * | 2014-04-30 | 2014-09-10 | 中广核三角洲（江苏）塑化有限公司 | High-flame-retardation low-smoke PVC composite material for booster cables, and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799210A (en) * | 2016-08-30 | 2018-03-13 | 江苏亨通线缆科技有限公司 | Communicate the distribution system flexible cable of resistance to irradiation |
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