CN106356117B - Fire resisting waterproof resist bending controls cable - Google Patents
Fire resisting waterproof resist bending controls cable Download PDFInfo
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- CN106356117B CN106356117B CN201610511845.6A CN201610511845A CN106356117B CN 106356117 B CN106356117 B CN 106356117B CN 201610511845 A CN201610511845 A CN 201610511845A CN 106356117 B CN106356117 B CN 106356117B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The present invention relates to field of cables.Fire resisting waterproof resist bending controls cable, including sheath, is embedded with least two cable cores in sheath, sheath is the sheath being made of ceramic high molecular material;Cable core includes an insulating layer, is equipped with conductor in insulating layer, insulating layer is the insulating layer being made of ceramic high molecular material;Insulating layer is externally provided with a nylon layer, and waterproof powder is equipped with insulating layer.Structure of the invention by optimizing traditional cable, the sheath and insulating layer formed using ceramic high molecular material, makes cable continue to keep power supply close under 1000 DEG C of fire conditions.The effect of waterproof is realized by nylon layer and waterproof powder.
Description
Technical field
The present invention relates to field of cables, and in particular to a kind of cable for elevator.
Background technology
Low-smoke zero-halogen fire-resistant environmental protection class cable currently used in the market, mainly Mica tape type fire-resisting cable, should
Class cable resist bending and poor waterproof properties, after multiple bend cycles use, rupture just occurs in mica tape, so as to lose resistance to
Fiery performance;In addition, when fire, the insulation of common plastics class cable and sheath material, which will melt, to be burnt, and cable, which will lose, to be made
With.
The content of the invention
Present invention aims at fire resisting waterproof resist bending control cable is to provide, asked with solving above-mentioned at least one technology
Topic.
To achieve these goals, technical scheme is as follows:
Fire resisting waterproof resist bending controls cable, including sheath, and being embedded with least two cable cores, its feature in the sheath exists
In the sheath is the sheath being made of ceramic high molecular material;
The cable core includes an insulating layer, is equipped with conductor in the insulating layer, the insulating layer is by ceramic macromolecule
The insulating layer that material is formed;
The insulating layer is externally provided with a nylon layer, and waterproof powder is equipped with the insulating layer.
Structure of the invention by optimizing traditional cable, the sheath formed using ceramic high molecular material and insulation
Layer, makes cable continue to keep power supply close under 1000 DEG C of fire conditions.The effect of waterproof is realized by nylon layer and waterproof powder.
The cable core is equipped with an external protection, an inner conductor layer, is equipped with inner conductor layer in the external protection, described interior to lead
Body layer includes at least two cores, and the core is made of the conductor with insulating layer;
The inner conductor layer further includes water blocking yarn, and the water blocking yarn is between adjacent core;
Nylon layer is equipped between the external protection and the inner conductor layer.
So as to further improve waterproof effect, the horizontal water-proof function of cable and longitudinal water-proof function are enhanced.
The sheath includes each component of following parts by weight:50-70 parts of polyolefin high molecular materials, 10-12 parts of hydrogen-oxygens
Change magnesium, 3-8 parts of aluminium hydroxides, 1-5 parts of glass dust, 3-8 parts of diatomite, 5-10 parts of mica powders, 3-8 parts of talcum powder, 2-7 parts of advanced ages
Soil, 6-12 parts of zinc borates.
The present invention is by optimizing the formula of traditional sheath, so as to improve the fire line of sheath.
The formula of external protection is consistent with sheath.
The sheath can also include 5-10 parts of perlite particles.
As a preferred embodiment, the sheath includes each component of following parts by weight:55-65 parts of polyolefin macromolecules
Material, 11-12 parts of magnesium hydroxides, 6-8 parts of aluminium hydroxides, 2-5 parts of glass dust, 3-8 parts of diatomite, 5-10 parts of mica powders, 3-8 parts
Talcum powder, 2-7 parts of kaolins, 6-12 parts of zinc borates, 5-10 parts of perlite particles.
The sheath can also include 8-15 parts of water-absorbing resins.Realize waterproof, the effect of water suction.
As a preferred embodiment, the sheath includes each component of following parts by weight:55-65 parts of polyolefin macromolecules
Material, 11 parts of magnesium hydroxides, 6 parts of aluminium hydroxides, 2-5 parts of glass dust, 3-8 parts of diatomite, 5-10 parts of mica powders, 3-8 parts of talcums
Powder, 2-7 parts of kaolins, 6-12 parts of zinc borates, 7 parts of perlite particles, 9 parts of water-absorbing resins.
The sheath can also include the 5-6 parts of Chinese herbal medicines for being used to remove termite.
The Chinese herbal medicine is that material is dried incinerated Chinese herbal medicine;
The Chinese herbal medicine includes gleditsia sinensis ash made of Chinese honey locust leaf, erose mussaenda leaf ash, the root skin system of China tree made of erose mussaenda leaf
Into China tree ash, gleditsia sinensis ash, erose mussaenda leaf ash, China tree ash three weight ratio be 1:2:5.
Through experiment, while realizing fireproof effect, termite-proof effect can also be realized.
As another preferred solution, the sheath includes each component of following parts by weight:55-65 parts of polyolefin high scores
Sub- material, 11 parts of magnesium hydroxides, 6-8 parts of aluminium hydroxides, 2-5 parts of glass dust, 3-8 parts of diatomite, 5-10 parts of mica powders, 3-8 parts
Talcum powder, 2-7 parts of kaolins, 6-12 parts of zinc borates, 15 parts of water-absorbing resins.
Equipped with least two lines in video wire core, optical fiber cable core, cable core, power supply wire core in the cable core
Core.
Equipped with least two in video wire core, optical fiber cable core, cable core, power supply wire core in cable core of the present invention
Kind core.It is easy to implement the feature not of the same race of cable core.
An electronic tag is embedded with the sheath, the electronic tag is equipped with signal transmitting antenna, the signal transmitting
Antenna periphery is equipped with protective, and the protective is used as using the sheath.
The present invention in sheath by being embedded with electronic tag, so as to contribute to the collection to sheath information, in addition, this hair
It is bright by the way that the protective of the signal transmitting antenna of electronic tag is chosen for sheath, feelings are launched by the signal of signal transmitting antenna
Condition, so as to judge whether sheath has fracture, or fire damage.
The signal transmitting antenna is in a compression spring;
The internal diameter of the compression spring is more than the internal diameter of the sheath, and the outside diameter of the compression spring is less than the sheath
Outside diameter, and the central axis of the central axis and the sheath of the compression spring is in same straight line.
The present invention prevents sheath signal in plastic deformation or drawing process from sending out by the structure of modified signal transmitting antenna
The fracture of antenna is penetrated, influences the normal transmission of signal.
The sheath is equipped with a hollow cavity for being stored with carbon dioxide, and the cross section of the hollow cavity is arc-shaped,
Central axial direction of the length direction of the hollow cavity parallel to the sheath;
The hollow cavity be equipped with least three, at least three hollow cavities annularly at equal intervals angular displacement in the sheath
It is interior.
Realize fire-retardant effect.It can also realize the flexibility of sheath.
The sheath is equipped with the through hole for being used for being filled with carbon dioxide, and the through hole and one stores carbon dioxide gas
The air accumulator conducting of body, the junction of the through hole and the air accumulator is equipped with an air pump;
The air pump connects a microprocessor system, and the microprocessor system connects a temperature sensor.
The present invention is easy to the temperature to current environment by temperature sensor monitors, when temperature sensor monitors to fire are sent out
When raw, by carbon dioxide by the through hole, ensure the normal work of cable.
The sheath is equipped with the installation position for being used for installing the temperature sensor, and the cable core is equipped with one and is used to connect
The signal input interface of the temperature sensor, the signal input interface are connected by electric conductor with the temperature sensor;
The electric conductor extends to installation position along the radial direction of the sheath from cable core.
The outer wall of the sheath is equipped with least five installation positions, and the spacing of adjacent installation position is no more than 10 meters, at least five
Arrange along the central axial direction of sheath a installation position.
The present invention is by equipped with installation position, being easily installed temperature sensor.
The sheath is the sheath of a flat, and the length of the cross section of the sheath is more than width, the horizontal stroke of the sheath
Central axial direction of the section perpendicular to the sheath;
The cable core of parallel arrangement is equipped with the sheath, is equipped with a steel wire between adjacent cable core, the steel wire is embedded in
In the sheath, the steel wire is in wavy, and the length direction of the steel wire is the width of the cross section of the sheath.
While increasing the support strength of sheath, ensure the bending strength of sheath.
The outer wall of the sheath is equipped with least five grooves, and the arragement direction of at least five grooves is parallel to the sheath
Central axial direction, the protrusion with the groove match is additionally provided with the outer wall of the sheath.
It is easy to implement being detachably connected for multiple cables.
The groove is a spherical groove, and the cross section of the spherical groove is in a circular arc, and the central angle of circular arc is not more than
250 °, and not less than 190 °.
Ensure the connective stability between cable.
The protrusion is a hemisphere jut;
Be embedded with spring in the protrusion, the elastic direction of the spring perpendicular to the sheath central axis with it is described
Plane residing for raised origin.
Further improve the connective stability between cable.
The electro-magnetic screen layer being made of metal mesh, the circular in cross-section of the metal mesh, institute are embedded with the sheath
The longitudinal section of metal mesh is stated in wavy.
The present invention compares the metal mesh of traditional line shape, and while strengthening the effect of electromagnetic shielding, when bending improves sheath
Toughness, improve the resistance to bend(ing) of sheath.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments:
Fig. 1 is a kind of structure diagram of the present invention.
Embodiment
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to Fig. 1, fire resisting waterproof resist bending controls cable, including sheath 1, and at least two cable cores 2 are embedded with sheath 1,
Sheath is the sheath being made of ceramic high molecular material;Cable core includes an insulating layer 3, and conductor, insulating layer are equipped with insulating layer 3
It is the insulating layer being made of ceramic high molecular material;Insulating layer is externally provided with a nylon layer, and waterproof powder is equipped with insulating layer.This hair
The bright structure by optimizing traditional cable, the sheath and insulating layer formed using ceramic high molecular material, is connecing cable
Continue to keep power supply under nearly 1000 DEG C of fire conditions.The effect of waterproof is realized by nylon layer and waterproof powder.
Cable core is equipped with an external protection, an inner conductor layer, and inner conductor layer is equipped with external protection, and inner conductor layer is included at least
Two cores, core are made of conductor and insulating layer;Inner conductor layer further includes water blocking yarn, water blocking yarn be located at adjacent core it
Between;Nylon layer is equipped between external protection and inner conductor layer.So as to further improve waterproof effect, the transverse direction for enhancing cable is prevented
Water function and longitudinal water-proof function.Conductor is silver-gilt copper wire or nickel plating copper wire.Conductor includes copper wire, and it is spiral that copper wire is externally provided with one
The coat of metal of shape, the coat of metal are to be made of nickel or be made of silver.Improve electric conductivity.
Sheath includes each component of following parts by weight:50-70 parts of polyolefin high molecular materials, 10-12 parts of magnesium hydroxides,
3-8 parts of aluminium hydroxides, 1-5 parts of glass dust, 3-8 parts of diatomite, 5-10 parts of mica powders, 3-8 parts of talcum powder, 2-7 parts of kaolins, 6-
12 parts of zinc borates.The present invention is by optimizing the formula of traditional sheath, so as to improve the fire line of sheath.Sheath is with cross-linking type
Macromolecule is basic material, its material of main part is polyolefin high molecular material, add fire resistant infilling magnesium hydroxide, aluminium hydroxide,
Glass dust, diatomite, mica powder, talcum powder, kaolin, zinc borate, the ceramic polyolefin being process by blending and modifying
Insulation Material, in the case where meeting fire condition, since 300 DEG C, sheath starts to react, and generation has insulation performance refractory ceramics layer,
Cable is set to continue to keep power supply close under 1000 DEG C of fire conditions.
Sheath can also include 5-10 parts of perlite particles.
As a preferred embodiment, sheath includes each component of following parts by weight:55-65 parts of polyolefin macromolecule materials
Material, 11-12 parts of magnesium hydroxides, 6-8 parts of aluminium hydroxides, 2-5 parts of glass dust, 3-8 parts of diatomite, 5-10 parts of mica powders, 3-8 parts of cunnings
Mountain flour, 2-7 parts of kaolins, 6-12 parts of zinc borates, 5-10 parts of perlite particles.
Sheath can also include 8-15 parts of water-absorbing resins.Realize waterproof, the effect of water suction.
As a preferred embodiment, sheath includes each component of following parts by weight:55-65 parts of polyolefin macromolecule materials
Material, 11 parts of magnesium hydroxides, 6 parts of aluminium hydroxides, 2-5 parts of glass dust, 3-8 parts of diatomite, 5-10 parts of mica powders, 3-8 parts of talcum powder,
2-7 parts of kaolins, 6-12 parts of zinc borates, 7 parts of perlite particles, 9 parts of water-absorbing resins.
Sheath can also include the 5-6 parts of Chinese herbal medicines for being used to remove termite.
Chinese herbal medicine is that material is dried incinerated Chinese herbal medicine;Chinese herbal medicine includes that gleditsia sinensis made of Chinese honey locust leaf is grey, big tea
Erose mussaenda leaf made of root is grey, China tree ash made of the root skin of China tree, and gleditsia sinensis ash, erose mussaenda leaf ash, the weight ratio of China tree ash three are
1:2:5.Through experiment, while realizing fireproof effect, termite-proof effect can also be realized.
As another preferred solution, sheath includes each component of following parts by weight:55-65 parts of polyolefin macromolecule materials
Material, 11 parts of magnesium hydroxides, 6-8 parts of aluminium hydroxides, 2-5 parts of glass dust, 3-8 parts of diatomite, 5-10 parts of mica powders, 3-8 parts of talcums
Powder, 2-7 parts of kaolins, 6-12 parts of zinc borates, 15 parts of water-absorbing resins.
Equipped with least two cores in video wire core, optical fiber cable core, cable core, power supply wire core in cable core.This
Equipped with least two cores in video wire core, optical fiber cable core, cable core, power supply wire core in invention cable core.Easy to reality
The feature not of the same race of existing cable core.
An electronic tag is embedded with sheath, electronic tag is equipped with signal transmitting antenna, and signal transmitting antenna periphery is equipped with
Protective, protective is used as using sheath.The present invention in sheath by being embedded with electronic tag, so as to contribute to sheath information
Collection, in addition, the present invention is launched by signal by the way that the protective of the signal transmitting antenna of electronic tag is chosen for sheath
The signal transmitting situation of antenna, so as to judge whether sheath has fracture, or fire damage.
Signal transmitting antenna is in a compression spring;The internal diameter for compressing spring is more than the internal diameter of sheath, compresses the outside diameter of spring
Less than the outside diameter of sheath, and the central axis for the central axis and sheath for compressing spring is in same straight line.The present invention is by changing
The structure of good signal transmitting antenna, prevents the fracture of sheath signal transmitting antenna in plastic deformation or drawing process, influences letter
Number normal transmission.
Conductor is equipped with easy breakpoint, and conductor is equipped with the metallic conductor of spring-like, and the metallic conductor is positioned at described easily broken
The both ends of point;The elastic deformation direction of the metallic conductor is anteroposterior direction;Anteroposterior direction is the length direction of conductor;It is described easy
When breakpoint is broken, the easily breakpoint is not turned on, the redundant segments conducting.The present invention by setting easy breakpoint on traditional electric wire,
After fracture, metallic conductor automatically accesses, and maintains supply of electric power, or signal communication, improves the job stability of traditional cable.
Electronic tag is equipped with an electrical energy inputs, electrical energy inputs connection metallic conductor.Easily broken point fracture, metallic conductor realize conductor
Normal conductor, supplies electricity to electronic tag, triggering electronic tag is sent out conductor break information by metallic conductor.
Sheath is equipped with a hollow cavity for being stored with carbon dioxide, and the cross section of hollow cavity is arc-shaped, hollow cavity
Central axial direction of the length direction parallel to sheath;Hollow cavity is equipped with least three, between at least three hollow cavities annularly wait
Every angular displacement in sheath.Realize fire-retardant effect.It can also realize the flexibility of sheath.
Sheath is equipped with the through hole for being used for being filled with carbon dioxide, and through hole and one store the gas storage of carbon dioxide
Tank turns on, and the junction of through hole and air accumulator is equipped with an air pump;Air pump connects a microprocessor system, microprocessor system
Connect a temperature sensor.The present invention is easy to the temperature to current environment by temperature sensor monitors, when temperature sensor is supervised
When measuring fire and occur, by carbon dioxide by through hole, ensure the normal work of cable.
Sheath, which is equipped with, is used for temperature sensor mounted installation position, and cable core is equipped with one and is used to connect temperature sensor
Signal input interface, signal input interface are connected by electric conductor with temperature sensor;Electric conductor is along the radial direction of sheath from cable
Core extends to installation position.
The outer wall of sheath is equipped with least five installation positions, and the spacing of adjacent installation position is not more than 10 meters, at least five peaces
Position is filled to arrange along the central axial direction of sheath.The present invention is by equipped with installation position, being easily installed temperature sensor.
Sheath is the sheath of a flat, and the length of the cross section of sheath is more than width, and the cross section of sheath is perpendicular to shield
The central axial direction of set;The cable core of parallel arrangement is equipped with sheath, is equipped with a steel wire between adjacent cable core, steel wire is embedded in
In sheath, steel wire is in wavy, and the length direction of steel wire is the width of the cross section of sheath.Increase the support strength of sheath
While, ensure the bending strength of sheath.
The outer wall of sheath is equipped with least five grooves, the central shaft of the arragement directions of at least five grooves parallel to sheath
Line direction, the protrusion with groove match is additionally provided with the outer wall of sheath.It is easy to implement being detachably connected for multiple cables.
Groove is a spherical groove, and the cross section of spherical groove is in a circular arc, and the central angle of circular arc is not more than 250 °, and not
Less than 190 °.Ensure the connective stability between cable.
Protrusion is a hemisphere jut;It is embedded with spring in protrusion, the central axis of the elastic direction of spring perpendicular to sheath
With the plane residing for raised origin.Further improve the connective stability between cable.
The electro-magnetic screen layer being made of metal mesh, the circular in cross-section of metal mesh are embedded with sheath, metal mesh is indulged
Section is in wavy.The present invention compares the metal mesh of traditional line shape, and while strengthening the effect of electromagnetic shielding, when bending improves
The toughness of sheath, improves the resistance to bend(ing) of sheath.
The basic principles, main features and the advantages of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. fire resisting waterproof resist bending controls cable, including sheath, being embedded with least two cable cores, its feature in the sheath exists
In the sheath is the sheath being made of ceramic high molecular material;
The cable core includes an insulating layer, is equipped with conductor in the insulating layer, the insulating layer is by ceramic high molecular material
The insulating layer of composition;
The insulating layer is externally provided with a nylon layer, and waterproof powder is equipped with the insulating layer;
The sheath includes each component of following parts by weight:50-70 parts of polyolefin high molecular materials, 10-12 parts of magnesium hydroxides,
3-8 parts of aluminium hydroxides, 1-5 parts of glass dust, 3-8 parts of diatomite, 5-10 parts of mica powders, 3-8 parts of talcum powder, 2-7 parts of kaolins, 6-
12 parts of zinc borates;
The sheath further includes the 5-6 parts of Chinese herbal medicines for being used to remove termite;
The Chinese herbal medicine is that material is dried incinerated Chinese herbal medicine;
The Chinese herbal medicine include gleditsia sinensis ash made of Chinese honey locust leaf, erose mussaenda leaf ash made of erose mussaenda leaf, China tree root skin made of
China tree ash, gleditsia sinensis ash, erose mussaenda leaf ash, the weight ratio of China tree ash three are 1:2:5;
The sheath is the sheath of a flat, and the length of the cross section of the sheath is more than width, the cross section of the sheath
Perpendicular to the central axial direction of the sheath;
The cable core of parallel arrangement is equipped with the sheath, a steel wire is equipped between adjacent cable core, the steel wire is embedded in described
In sheath, the steel wire is in wavy, and the length direction of the steel wire is the width of the cross section of the sheath;
An electronic tag is embedded with the sheath, the electronic tag is equipped with signal transmitting antenna, the signal transmitting antenna
Periphery is equipped with protective, and the protective is used as using the sheath;
The signal transmitting antenna is in a compression spring;
The internal diameter of the compression spring is more than the internal diameter of the sheath, and the outside diameter of the compression spring is less than the outer of the sheath
Footpath, and the central axis of the central axis and the sheath of the compression spring is in same straight line;
Conductor is equipped with easy breakpoint, and conductor is equipped with the metallic conductor of spring-like, and the metallic conductor is positioned at the easily breakpoint
Both ends;The elastic deformation direction of the metallic conductor is anteroposterior direction;Anteroposterior direction is the length direction of conductor;The easy breakpoint
During fracture, the easily breakpoint is not turned on, redundant segments conducting;
Electronic tag is equipped with an electrical energy inputs, electrical energy inputs connection metallic conductor;Easily broken point fracture, metallic conductor are realized and led
The normal conductor of body, supplies electricity to electronic tag, triggering electronic tag is sent out conductor break information by metallic conductor.
2. fire resisting waterproof resist bending according to claim 1 controls cable, it is characterised in that:The cable core is equipped with outside one and protects
Sheath, an inner conductor layer, the external protection is interior to be equipped with inner conductor layer, and the inner conductor layer includes at least two cores, described
Core is made of the conductor with insulating layer;
The inner conductor layer further includes water blocking yarn, and the water blocking yarn is between adjacent core;
Nylon layer is equipped between the external protection and the inner conductor layer.
3. fire resisting waterproof resist bending according to claim 1 controls cable, it is characterised in that:The sheath further includes 5-10
Part perlite particle.
4. fire resisting waterproof resist bending according to claim 3 controls cable, it is characterised in that:The sheath includes following weight
Measure each component of number:55-65 parts of polyolefin high molecular materials, 11-12 parts of magnesium hydroxides, 6-8 parts of aluminium hydroxides, 2-5 parts of glass
Glass powder, 3-8 parts of diatomite, 5-10 parts of mica powders, 3-8 parts of talcum powder, 2-7 parts of kaolins, 6-12 parts of zinc borates, 5-10 parts of pearls
Rock particle.
5. fire resisting waterproof resist bending according to claim 1 controls cable, it is characterised in that:The sheath further includes 8-15
Part water-absorbing resin.
6. fire resisting waterproof resist bending according to claim 1 controls cable, it is characterised in that:The sheath is deposited equipped with one
Contain the hollow cavity of carbon dioxide, the cross section of the hollow cavity is arc-shaped, the length direction of the hollow cavity parallel to
The central axial direction of the sheath;
The hollow cavity be equipped with least three, at least three hollow cavities annularly at equal intervals angular displacement in the sheath.
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CN201610511845.6A CN106356117B (en) | 2016-07-01 | 2016-07-01 | Fire resisting waterproof resist bending controls cable |
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CN106356117B true CN106356117B (en) | 2018-05-11 |
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CN107146658A (en) * | 2017-03-31 | 2017-09-08 | 湖州辰丰线缆有限公司 | A kind of telephone cable |
CN107274992A (en) * | 2017-06-28 | 2017-10-20 | 芜湖启泽信息技术有限公司 | A kind of optoelectronic composite cable line for Communication power industry |
CN111755160A (en) * | 2020-07-13 | 2020-10-09 | 安徽省康利亚股份有限公司 | Speed sensor connecting cable |
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CN105304165A (en) * | 2015-07-30 | 2016-02-03 | 上海宏欣电线电缆有限公司 | Fireproof flexible halogen-free robot cable |
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