CN101656128A - Environmental protection flexible data cable - Google Patents
Environmental protection flexible data cable Download PDFInfo
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- CN101656128A CN101656128A CN200910035191A CN200910035191A CN101656128A CN 101656128 A CN101656128 A CN 101656128A CN 200910035191 A CN200910035191 A CN 200910035191A CN 200910035191 A CN200910035191 A CN 200910035191A CN 101656128 A CN101656128 A CN 101656128A
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- environmental protection
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- silk
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- flexible data
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Abstract
The invention belongs to the cable field, in particular to an environmental protection flexible data cable applied to an electrical system. The cable comprises a wire core composed of a conductor andan insulating layer, wherein a shielding layer is coated outside the wire core; a sheathing layer is coated outside the shielding layer; a filling rope and the wire core are coated by the shielding layer at the same time; the conductor is formed by stranding of a plurality of soft metal wires, the specific value of the difference of the largest external diameter and the smallest external diameterof the same cross section of the stranded conductor and the average external diameter is less than or equal to 0.15; the insulating layer is made of a crosslinked polythene material; the filling ropeis formed by stranding by a plurality of strands of cotton yarn; the shielding layer is provided with a metal composite strip, a leakage wire and a braided shielding layer, wherein the materials of the leakage wire and the braided shielding layer are soft metal wires; the leakage wire is formed by stranding of a plurality of soft metal wires; and the sheathing layer is made of PVC materials. The invention has the advantages that the cable has strong mechanical strength, strong weather ability, high softness, ultraviolet ray resistance, wide range of operation temperature, high flame retardantproperty and environmental protective products.
Description
Technical field
The invention belongs to field of cables, particularly a kind of environmental protection flexible data cable that is applied to electrical system.
Background technology
All electrical systems in industrial environment for use, especially measure, monitoring and control cable, the cable that occasions such as lathe manufacturing, complete set of equipments installing engineering, power station, heating and air-conditioning system, freezing equipment, business automation equipment and data handling system are used, the cable that particularly is applicable to indoor, outdoor special sensor system is high especially to the requirement of mechanical strength, shielding, weatherability, and common electric wire is not suitable for the use of above technology now.
Summary of the invention
It is high especially to the present invention is directed in the above-mentioned technology requirement to cable machinery intensity, shielding, weatherability, and the common electrical cable can't meet the requirements of weak point, and a kind of environmental protection flexible data cable is provided.
Realize that technical scheme of the present invention is as follows:
A kind of environmental protection flexible data cable, it comprises the core that conductor and insulating barrier are formed, core is coated with screen, screen is coated with restrictive coating, gasket for packing and core conductively-closed simultaneously layer coats, conductor is that some soft metals skein silk closes and forms, and twisting pitch is smaller or equal to 60 millimeters, and the difference of stranded conductor same cross section maximum outside diameter and minimum outer diameter and mean outside diameter ratio are smaller or equal to 0.15; Insulating barrier is a working temperature-40 ℃---the cross-linking polyethylene materials of 105 ℃ of grades; Gasket for packing forms for several strands of cotton yarn plying, and the cotton yarn number of share of stock is 10 strands-45 strands; Screen has metal compound belt, leaky line, woven shield, and the material of leaky line and woven shield is the soft metal silk, and leaky line is that some soft metals skein silk closes and forms; Sheath is a working temperature-40 ℃---105 ℃ of grade PVC materials.
The diameter of described conductor is 0.14---0.18 millimeter, this conductor is by 38---, and 48 soft metal skein silks close and form, and this soft metal silk is a kind of in annealed copper silk or the coating annealed copper silk.
Described core external diameter is 1.8 millimeters---4.5 millimeters.
The minimum pull-off force that described cotton yarn sub-thread is 0.5 meter is 5.5 newton, cotton yarn be white or faint yellow in a kind of.
Described leaky line filament diameter is 0.24---0.27 millimeter, comprising 8---12 soft metal silks, this soft metal silk are a kind of in annealed copper silk or the coating annealed copper silk.
Described braid shielded is by 110---140 soft metal silks are formed, and this wire diameter is 0.1 millimeter---0.2 millimeter, this wire is a kind of in annealed copper silk or the coating annealed copper silk.
The external diameter of this electric wire is 6.0 millimeters---10.0 millimeters.
Adopted technique scheme, conductor adopted a strand stranded annealed copper silk or a coating annealed copper silk, was that maximum resistivity is 0.0168895 Ω mm2/m at 20 ℃, 20 ℃ of conductor DC resistance rate≤23.5 Ω/km; Insulating layer material is selected the cross-linked polyethylene insulating material of-40 ℃～105 ℃ of grades, and this insulating material maximum dielectric constant (50Hz, 20 ℃) is 2.1～3.1, and maximum dielectric loss angle tangent (50Hz, 20 ℃) is 0.0001～0.0007; Gasket for packing is the plying cotton yarn, and number of share of stock is 20 strands～30 strands, and the main component of this cotton yarn is cotton or cotton and chemical fibre, and flexibility is splendid, and proportion is little, and thermal stability is good, non-plastic, asepsis environment-protecting; The multi-functional shielding of metal compound belt, multiply leaky line, establishment shielding is adopted in shielding, leaky line is defined as: 8---12 annealed copper silks or coating annealed copper silk, every diameter 0.24---0.27 millimeter, braid shielded is: 110---140 annealed copper silks or coating annealed copper silk are formed, wire diameter is 0.1 millimeter---0.2 millimeter, material is annealed copper silk or coating annealed copper silk, and multiply leaky line spiral embeds the heart yearn gap.This technology can reduce the outside diameter of cable, reduces product cost, improves the roundness of finished cable, and shielding adopts the multi-functional shielding of metal compound belt, multiply leaky line, establishment shielding to meet shielding and can shield frequency electromagnetic waves, shields frequency electromagnetic waves again.And pass the bigger energy of metal compound belt when shielding loss when electromagnetic wave, the bigger energy of loss again when electromagnetic wave passes braid shielded, thus when disturbing wave from outside to inside, or from the inside to surface, it is littler all can to become, and has improved shielding than traditional shielding; Sheath material has selected to have the ultra-violet resistance PVC protective cover material of-40 ℃～105 ℃ of grades of excellent weather resistance and flexibility, these make the electric wire adjacent conductor reach lower mutual capacitance and lower conductor to conductor and shielding electric capacity, the useful benefit of the present invention is that cable has very strong mechanical strength, weatherability is strong, the flexibility height, UV resistant, operating temperature range is big, has high flame resistance, the product environmental protection.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure, 1, conductor, 2, insulating barrier, 3, gasket for packing, 4, metal compound belt, 5, leaky line, 6, the establishment shielding, 7, sheath.
Embodiment
A kind of environmental protection flexible data cable, the external diameter of this electric wire is 10 millimeters, it comprises the core that conductor and insulating barrier are formed, core is coated with screen, and screen is coated with restrictive coating, and gasket for packing and conductor conductively-closed simultaneously layer coats, conductor is closed by 46 annealed copper skein silks and forms, the diameter of single soft copper silk is 0.17 millimeter, and twisting pitch is 35 ± 3 millimeters, and the difference of stranded conductor wire core same cross section maximum outside diameter and minimum outer diameter and mean outside diameter ratio are smaller or equal to 0.15; Insulating barrier is a working temperature-40 ℃---the cross-linking polyethylene materials of 105 ℃ of grades; Gasket for packing is the plying cotton yarn, and the cotton yarn number of share of stock is 35 strands; Screen has metal compound belt, leaky line, braid shielded, and the material of leaky line and braid shielded is the soft copper silk, and leaky line is that 10 annealed copper skein silks close and form, and single soft copper filament diameter is 0.24 millimeter; Sheath is a working temperature-40 ℃---105 ℃ of grade PVC materials, the insulating barrier external diameter is 3.0 millimeters, the minimum pull-off force of cotton yarn sub-thread is 0.6 kilogram/meter, cotton yarn be white or faint yellow in a kind of, the establishment shielding is that 0.12 millimeter soft copper silk is formed by 128 diameters, and this soft copper silk is the annealed copper silk.
Conductor wire core adopted a strand stranded annealed copper silk, was that maximum resistivity is 0.0168895 Ω mm2/m at 20 ℃, 20 ℃ of conductor DC resistance rate≤23.5 Ω/km; Insulating layer material is selected the cross-linked polyethylene insulating material of-40 ℃～105 ℃ of grades, and this insulating material maximum dielectric constant (50Hz, 20 ℃) is 2.1～3.1, and maximum dielectric loss angle tangent (50Hz, 20 ℃) is 0.0001～0.0007; Be filled to the plying cotton yarn, number of share of stock is 30 strands, and the main component of this cotton yarn is cotton or cotton and chemical fibre, and flexibility is splendid, and proportion is little, and thermal stability is good, non-plastic, asepsis environment-protecting; The multi-functional shielding of metal compound belt, multiply leaky line, establishment shielding is adopted in shielding, this technology can reduce the outside diameter of cable, reduce product cost, improve the roundness of finished cable, shielding adopts the multi-functional shielding of metal compound belt, multiply leaky line, establishment shielding to meet shielding and can shield frequency electromagnetic waves, shields frequency electromagnetic waves again.And pass the bigger energy of metal compound belt when shielding loss when electromagnetic wave, the bigger energy of loss again when electromagnetic wave passes braid shielded, thus when disturbing wave from outside to inside, or from the inside to surface, it is littler all can to become, and has improved shielding than traditional shielding; Sheath material has selected to have the ultra-violet resistance PVC protective cover material of-40 ℃～105 ℃ of grades of excellent weather resistance and flexibility, and all material meets the RoHS requirement.
Claims (7)
1, a kind of environmental protection flexible data cable, it comprises the core that conductor and insulating barrier are formed, and core is coated with screen, and screen is coated with restrictive coating, and gasket for packing and core conductively-closed simultaneously layer coats, and it is characterized in that:
Conductor is that some soft metals skein silk closes and forms, and twisting pitch is smaller or equal to 60 millimeters, and the difference of stranded conductor same cross section maximum outside diameter and minimum outer diameter and mean outside diameter ratio are smaller or equal to 0.15;
Insulating barrier is a working temperature-40 ℃---the cross-linking polyethylene materials of 105 ℃ of grades; Gasket for packing forms for several strands of cotton yarn plying, and the cotton yarn number of share of stock is 10 strands---and 45 strands;
Screen has metal compound belt, leaky line, woven shield, and the material of leaky line and woven shield is the soft metal silk, and leaky line is that some soft metals skein silk closes and forms;
Sheath is a working temperature-40 ℃---105 ℃ of grade PVC materials.
2, a kind of environmental protection flexible data cable according to claim 1, it is characterized in that: the diameter of described conductor is 0.14---0.18 millimeter, this conductor is by 38---and 48 soft metal skein silks close and form, and this soft metal silk is a kind of in annealed copper silk or the coating annealed copper silk.
3, a kind of environmental protection flexible data cable according to claim 1 is characterized in that: described core external diameter is 1.8 millimeters---4.5 millimeters.
4, a kind of environmental protection flexible data cable according to claim 1 is characterized in that: the minimum pull-off force that described cotton yarn sub-thread is 0.5 meter is 5.5 newton, cotton yarn be white or faint yellow in a kind of.
5, a kind of environmental protection flexible data cable according to claim 1, it is characterized in that: described leaky line filament diameter is 0.24---0.27 millimeter, comprising 8---12 soft metal silks, this soft metal silk are a kind of in annealed copper silk or the coating annealed copper silk.
6, a kind of environmental protection flexible data cable according to claim 1, it is characterized in that: described braid shielded is by 110---and 140 soft metal silks are formed, this wire diameter is 0.1 millimeter---0.2 millimeter, this wire is a kind of in annealed copper silk or the coating annealed copper silk.
7, a kind of environmental protection flexible data cable according to claim 1 is characterized in that: the external diameter of this electric wire is 6.0 millimeters---10.0 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035191A CN101656128A (en) | 2009-09-14 | 2009-09-14 | Environmental protection flexible data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910035191A CN101656128A (en) | 2009-09-14 | 2009-09-14 | Environmental protection flexible data cable |
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| Publication Number | Publication Date |
|---|---|
| CN101656128A true CN101656128A (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910035191A Pending CN101656128A (en) | 2009-09-14 | 2009-09-14 | Environmental protection flexible data cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894627A (en) * | 2010-06-30 | 2010-11-24 | 江苏东旭电缆有限公司 | High-flexibility rubber-sheathed cable |
| CN102509574A (en) * | 2011-11-04 | 2012-06-20 | 贸联电子(昆山)有限公司 | High-speed differential twisted pair structure |
| CN105679420A (en) * | 2016-04-11 | 2016-06-15 | 湖南华菱线缆股份有限公司 | Multifunctional cable of sound equipment |
| CN105970704A (en) * | 2016-07-01 | 2016-09-28 | 江西龙泰新材料股份有限公司 | Production technology of nano-scale halogen-free highly-flame-retardant cable filling rope and wire hanging frame applied to production technology |
-
2009
- 2009-09-14 CN CN200910035191A patent/CN101656128A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894627A (en) * | 2010-06-30 | 2010-11-24 | 江苏东旭电缆有限公司 | High-flexibility rubber-sheathed cable |
| CN102509574A (en) * | 2011-11-04 | 2012-06-20 | 贸联电子(昆山)有限公司 | High-speed differential twisted pair structure |
| CN102509574B (en) * | 2011-11-04 | 2014-07-16 | 贸联电子(昆山)有限公司 | High-speed differential twisted pair structure |
| CN105679420A (en) * | 2016-04-11 | 2016-06-15 | 湖南华菱线缆股份有限公司 | Multifunctional cable of sound equipment |
| CN105970704A (en) * | 2016-07-01 | 2016-09-28 | 江西龙泰新材料股份有限公司 | Production technology of nano-scale halogen-free highly-flame-retardant cable filling rope and wire hanging frame applied to production technology |
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Open date: 20100224 |