CN114724779B - Preparation method of cable with double performances of fire prevention and heat dissipation - Google Patents

Preparation method of cable with double performances of fire prevention and heat dissipation Download PDF

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Publication number
CN114724779B
CN114724779B CN202210356353.XA CN202210356353A CN114724779B CN 114724779 B CN114724779 B CN 114724779B CN 202210356353 A CN202210356353 A CN 202210356353A CN 114724779 B CN114724779 B CN 114724779B
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layer
cable
insulation layer
flame
thickness
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CN114724779A (en
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朱敬轩
胡乐云
罗锡群
张海刚
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Zhejiang Shikun Cable Co ltd
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Zhejiang Shikun Cable Co ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • H01B13/146—Controlling the extrusion apparatus dependent on the capacitance or the thickness of the insulating material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/16—Insulating conductors or cables by passing through or dipping in a liquid bath; by spraying
    • H01B13/165—Insulating conductors or cables by passing through or dipping in a liquid bath; by spraying by spraying
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/221—Sheathing; Armouring; Screening; Applying other protective layers filling-up interstices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
    • H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
    • H01B13/2686—Pretreatment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • 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
    • H01B7/02—Disposition of insulation
    • H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
    • 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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1895—Internal space filling-up means
    • 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
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
    • 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
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulated Conductors (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The application discloses preparation method of cable of fire prevention heat dissipation dual performance is through setting up the insulating layer to confirm insulating layer and insulating layer overall thickness according to the cable core, the overall thickness of semi-manufactured goods cable insulating layer and insulating layer is monitored in real time, the length addition of dynamic adjustment insulating layer material unit, control insulating layer thickness, guarantee not influence the heat dissipation of cable under the condition of cable normal operating. Through setting up the isolation layer to confirm the whole thickness of isolation layer and insulating layer according to predetermineeing fire rating, through the whole thickness of real time monitoring semi-manufactured goods electric isolation layer and fire-retardant layer, the length addition of dynamic adjustment isolation layer material unit, control isolation layer thickness can guarantee to play the effect on heat-proof layer when the conflagration takes place, can not influence the heat dissipation of cable again under the condition of cable normal operating.

Description

Preparation method of cable with double performances of fire prevention and heat dissipation
Technical Field
The invention relates to the technical field of cable preparation, in particular to a preparation method of a cable with double performances of fire prevention and heat dissipation.
Background
The cable core of traditional cable can produce the heat at the in-process that uses, and the effect of traditional cable core for playing protection waterproof fire prevention all can play the fire-proof waterproof material of guard action with cable core cladding multilayer to lead to the cable core to lead to the local too high of being heated because the heat dissipation condition is poor, thereby influence cable wholeness ability, in case the cable damages, not only can cause huge economic loss, gives people the life and brings very big inconvenience.
If the cable core is too thin relative to the thickness of the insulating layer, the temperature field inside the cable will change due to the change in its thermal properties. The thin core and small cross section of the cable lead to the increase of the resistance per unit length of the cable, thus leading to the following: the core loss in the state is increased, and more heat is released; and the size of the insulating layer is increased, so that the heat preservation effect of the cable is enhanced, and the heat generated by the ohmic heat effect of the cable guide core is not released. If the cable core is too thin relative to the insulating layer, the temperature of the cable core increases in the steady state, and the cable is in a dangerous state under normal current-carrying capacity.
In the cable at the present stage, the related fireproof heat dissipation cable disclosed at present is complex in structure and difficult to realize in process. Therefore, the improvement is made, and a preparation method of the cable with double performances of fire prevention and heat dissipation is provided.
Disclosure of Invention
The invention aims to provide a preparation method of a fireproof and heat-dissipation double-performance cable, and solves the problems that the fireproof cable is poor in heat dissipation performance and complex in preparation process at the present stage.
In some embodiments of the application, the heat insulation layer is arranged, the whole thickness of the heat insulation layer and the insulation layer is determined according to the cable core, the unit length adding amount of the insulation layer material is dynamically adjusted by monitoring the whole thickness of the insulation layer and the insulation layer of the semi-finished cable in real time, the thickness of the insulation layer is controlled, and the heat dissipation of the cable is not influenced under the condition that the cable normally runs.
In some embodiments of this application, the isolation layer has been set up to confirm the whole thickness of isolation layer and insulating layer according to predetermineeing fire rating, through the whole thickness of real time monitoring semi-manufactured goods electric isolation layer and fire-retardant layer, the length addition of dynamic adjustment isolation layer material unit, control isolation layer thickness can guarantee to play the effect on heat-proof layer when the conflagration takes place, can not influence the heat dissipation of cable under the condition of cable normal operating again.
In some embodiments of the application, the low-smoke halogen-free flame-retardant polyolefin with the high oxygen index is used as a flame-retardant layer material, and the addition amount of the flame-retardant layer material is determined by the thickness of the isolation layer to control the thickness of the flame-retardant layer, so that the material has good flame-retardant and fire-resistant characteristics, and toxic gas can not be generated under the fire condition, so that the cable has excellent heat dissipation performance and excellent fire resistance.
The method is realized by the following technology:
in some embodiments of the present application, a method for preparing a cable with dual performance of fire prevention and heat dissipation is provided, including:
a, preparing conductor wires by smelting, continuous casting and rolling, wire drawing, annealing and stranding aluminum alloy or copper, and performing circular compaction and stranding on a plurality of conductor wires by a high-speed stranding machine to obtain cable cores;
step b: extruding an insulating material and the cable core in a single-screw extruder to obtain a cable with an insulating layer;
step c: uniformly spraying a cable heat insulation and cooling material on the surface of the cable with the insulating layer by adopting a spraying method, and cooling and solidifying the cable to obtain the cable with the heat insulation layer;
step d: carrying out extrusion coating treatment on the cable with the heat insulation layer through a coating machine to obtain a cable with an isolation layer;
step e: carrying out secondary extrusion treatment on the cable with the isolation layer through a coating machine, and extruding the low-smoke halogen-free flame-retardant polyolefin protective sleeve material with the high oxygen index on the surface of the cable with the isolation layer, so as to obtain the cable with the flame-retardant layer;
step f: performing various performance tests, and preparing a finished cable product after the tests are qualified; wherein the content of the first and second substances,
in the step c, the thickness of a heat insulation layer of the subsequently manufactured cable with the heat insulation layer and the overall thickness of the heat insulation layer and the insulation layer are set based on the diameter of the cable core.
In some embodiments of the present application, the thermal insulation layer of the cable with the thermal insulation layer is specifically set as follows:
presetting a thermal insulation layer thickness matrix A, (A1, A2, A3 and A4), wherein A1 is a first preset value of thermal insulation layer thickness, A2 is a second preset value of thermal insulation layer thickness, A3 is a third preset value of thermal insulation layer thickness, A4 is a fourth preset value of thermal insulation layer thickness, A1< A2< A3< A4;
obtaining a cable core diameter D, presetting a cable core diameter matrix D ', setting D' (D1, D2, D3, D4)
Wherein D1 is a first preset value of a cable core, D2 is a second preset value of the cable core, D3 is a third preset value of the cable core, and D4 is a fourth preset value of the cable core, wherein D1 is more than D2 and less than D3 and less than D4;
when the diameter D of the cable core is smaller than D1, setting a first preset value A1 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when the diameter D1 of the cable core is less than D < D2, setting a second preset value A2 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when the diameter D2 of the cable core is less than D < D3, setting a third preset value A3 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when the diameter D3 of the cable core is less than D < D4, setting a fourth preset value A4 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
and when the diameter D of the cable core is larger than D4, setting a fourth preset value A4 of the thickness of the heat insulation layer as the thickness of the heat insulation layer.
In some embodiments of the present application, when setting the insulation layer of the cable having the insulation layer, the method further includes:
presetting a thermal insulation layer and insulating layer integral thickness matrix C, C (C1, C2, C3, C4), wherein C1 is a first preset value of the thermal insulation layer and insulating layer integral thickness, C2 is a second preset value of the thermal insulation layer and insulating layer integral thickness, C3 is a third preset value of the thermal insulation layer and insulating layer integral thickness, C4 is a fourth preset value of the thermal insulation layer and insulating layer integral thickness, and C1< C2< C3< C4;
when the diameter D of the cable core is smaller than D1, setting a first preset value C1 of the overall thickness of the heat insulation layer and the insulation layer as the overall thickness of the heat insulation layer and the insulation layer;
when the diameter D1 of the cable core is smaller than D < D2, setting a second preset value C2 of the overall thickness of the heat insulation layer and the insulating layer as the overall thickness of the heat insulation layer and the insulating layer;
when the diameter D2 of the cable core is smaller than D < D3, setting a third preset value C3 of the overall thickness of the heat insulation layer and the insulating layer as the overall thickness of the heat insulation layer and the insulating layer;
when the diameter D3 of the cable core is smaller than D < D4, the fourth preset value C4 of the overall thickness of the heat insulation layer and the insulation layer is set as the overall thickness of the heat insulation layer and the insulation layer;
when the diameter D of the cable core is larger than D4, setting a fourth preset value C4 of the overall thickness of the heat insulation layer and the insulation layer as the overall thickness of the heat insulation layer and the insulation layer;
and C, when the processing completion amount in the step C reaches the preset processing amount, acquiring diameter data of the cable core and integral thickness data of the heat insulation layer and the insulating layer, and judging whether the integral thickness of the heat insulation layer and the insulating layer conforms to an integral thickness matrix C of the heat insulation layer and the insulating layer.
In some embodiments of the present application, determining whether the overall thickness of the thermal insulation layer and the insulating layer meets a preset value specifically includes:
when the overall thickness of the heat insulation layer and the insulation layer is larger than the overall thickness matrix C of the heat insulation layer and the insulation layer, the addition amount of the insulation layer material in unit length is reduced in real time;
when the overall thickness of the heat insulation layer and the insulation layer is smaller than the overall thickness matrix C of the heat insulation layer and the insulation layer, the addition amount of the insulation layer material in unit length is increased in real time;
and when the overall thickness of the heat insulation layer and the insulation layer accords with the overall thickness matrix C of the heat insulation layer and the insulation layer, the processing and the production are continued.
Some embodiments of the present application further comprise:
presetting a cable fire-protection grade matrix H, H (H1, H2, H3, H4), wherein H1 is a first preset cable fire-protection grade; h2 is a second preset cable fire rating, H3 is a third preset cable fire rating, and H4 is a fourth preset cable fire rating, wherein H1< H2< H3< H4;
and setting the addition amount of the flame-retardant layer material per unit length based on the relationship between the fire-retardant grade of the cable and the fire-retardant value of the flame-retardant layer.
In some embodiments of the present application, the addition amount per unit length of the flame retardant layer material is specifically:
presetting a flame-retardant layer material unit length addition matrix K, K (K1, K2, K3, K4), wherein K1 is a first preset value of flame-retardant layer material addition, K2 is a second preset value of flame-retardant layer material addition, K3 is a third preset value of flame-retardant layer material addition, K4 is a fourth preset value of flame-retardant layer material addition, K1 is more than K2, and K3 is more than K4;
when the fire-proof grade is a first preset grade H1, adding a first preset value K1 into the unit length of the flame-retardant layer material as the addition of the unit length of the flame-retardant layer material;
when the fire-retardant grade is a second preset grade H2, adding a second preset value K2 to the unit length of the flame-retardant layer material as the addition amount of the unit length of the flame-retardant layer material;
when the fire-retardant grade is a third preset grade H3, adding a third preset value K3 to the unit length of the flame-retardant layer material as the addition amount of the flame-retardant layer material;
and when the fire-retardant grade is a fourth preset grade H4, adding a fourth preset value K4 to the unit length of the flame-retardant layer material as the addition amount of the flame-retardant layer material.
In some embodiments of the present application, further comprising:
presetting an integral thickness matrix E of the flame-retardant layer and the isolation layer, (E1, E2, E3 and E4), wherein E1 is a first preset value of the integral thickness of the flame-retardant layer and the isolation layer; e2 is a second preset value of the overall thickness of the flame-retardant layer and the isolation layer; e3 is a third preset value of the overall thickness of the flame-retardant layer and the isolation layer; e4 is a fourth preset value of the overall thickness of the flame-retardant layer and the isolation layer;
confirm fire-retardant layer and the whole thickness of isolation layer based on cable fire-protection rating, specifically do:
when the fire-proof grade H of the cable is H1, setting a first preset value E1 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
when the fire-proof grade H of the cable is H2, setting a second preset value E2 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
when the fire-proof grade H of the cable is H3, setting a third preset value E3 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
when the fire-proof grade H of the cable is H4, setting a fourth preset value E4 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
and E, when the processing completion amount in the step E reaches the preset processing amount, acquiring the fire-proof grade of the cable and the integral thickness data of the flame-retardant layer and the isolation layer, and judging whether the integral thickness of the flame-retardant layer and the isolation layer conforms to the integral thickness matrix E of the flame-retardant layer and the isolation layer.
In some embodiments of the present application, it is characterized in that, determining whether the overall thickness of the flame retardant layer and the isolation layer conforms to the overall thickness matrix E of the flame retardant layer and the isolation layer specifically includes:
when the integral thickness of the flame-retardant layer and the isolation layer is larger than the integral thickness matrix C of the flame-retardant layer and the isolation layer, the addition amount of the isolation layer material in unit length is reduced in real time;
when the integral thickness of the flame-retardant layer and the isolation layer is smaller than the integral thickness matrix C of the flame-retardant layer and the isolation layer, the addition amount of the isolation layer material in unit length is increased in real time;
and when the whole thickness of the flame-retardant layer and the whole thickness of the isolation layer accord with the whole thickness matrix C of the flame-retardant layer and the isolation layer, carrying out performance test on the cable.
Some embodiments of this application provide a cable with fire prevention heat dissipation dual performance, include, the cable has set gradually cable core, insulating layer, isolation layer, fire-retardant layer from inside to outside, adopts the successive layer to cup joint.
In some embodiments of the present application, the cable core and the insulating layer are provided with a filler reinforcement.
The application discloses preparation method of cable of fire prevention heat dissipation dual performance is through setting up the insulating layer to confirm insulating layer and insulating layer overall thickness according to the cable core, the overall thickness of semi-manufactured goods cable insulating layer and insulating layer is monitored in real time, the length addition of dynamic adjustment insulating layer material unit, control insulating layer thickness, guarantee not influence the heat dissipation of cable under the condition of cable normal operating. Through setting up the isolation layer to confirm the whole thickness of isolation layer and insulating layer according to predetermineeing fire rating, through the whole thickness of real time monitoring semi-manufactured goods electric isolation layer and fire-retardant layer, the length addition of dynamic adjustment isolation layer material unit, control isolation layer thickness can guarantee to play the effect on heat-proof layer when the conflagration takes place, can not influence the heat dissipation of cable again under the condition of cable normal operating.
Drawings
FIG. 1 is a flowchart of a method for manufacturing a cable with dual fireproof and heat dissipation properties according to an embodiment of the present invention
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1, in a preferred embodiment of the present application, there is provided a method for preparing a cable with dual performance of fire prevention and heat dissipation, including: step a: the method comprises the following steps of smelting, continuous casting and rolling, wire drawing, annealing and stranding aluminum alloy or copper to obtain conductor wires, and circularly compressing and stranding a plurality of conductor wires through a high-speed stranding machine to obtain cable cores; step b: extruding an insulating material and the cable core in a single-screw extruder to obtain a cable with an insulating layer; step c: uniformly spraying a cable heat insulation and cooling material on the surface of the cable with the insulating layer by adopting a spraying method, and cooling and solidifying the cable to obtain the cable with the heat insulation layer; step d: carrying out extrusion coating treatment on the cable with the heat insulation layer through a coating machine to obtain a cable with an isolation layer; step e: carrying out secondary extrusion treatment on the cable with the isolation layer through a coating machine, and extruding the low-smoke halogen-free flame-retardant polyolefin protective sleeve material with the high oxygen index on the surface of the cable with the isolation layer, so as to obtain the cable with the flame-retardant layer; step f: performing various performance tests, and preparing a finished cable product after the tests are qualified; in the step c, the thickness of a heat insulation layer of the subsequently manufactured cable with the heat insulation layer and the whole of the heat insulation layer and the insulation layer are set based on the diameter of the cable core;
it can be understood that, the above-mentioned embodiment selects the whole thickness of insulating layer and insulating layer that corresponds according to the different diameters of cable core, and select the corresponding heat insulating layer thickness according to the different diameters of cable core, wherein determine the whole thickness of insulating layer and insulating layer according to cable core diameter and be for the cable core to lead to the unit length resistance grow of cable for insulating layer and insulating layer whole thickness is too thin, lead to the problem that the radiating effect reduces, avoid the cable to lead the core to lead to the insulating nature of cable not enough for insulating layer and insulating layer whole thickness, the problem of power consumption danger. And the thickness of the heat insulation layer is set according to the diameter of the cable core, so that the heat dissipation effect in the cable is not influenced.
In some preferred embodiments of the present application, when setting the insulation layer of the cable with the insulation layer, specifically: presetting a thermal insulation layer thickness matrix A, (A1, A2, A3 and A4), wherein A1 is a first thermal insulation layer thickness preset value, A2 is a second thermal insulation layer thickness preset value, A3 is a third thermal insulation layer thickness preset value, A4 is a fourth thermal insulation layer thickness preset value, and A1< A2< A3< A4;
obtaining a cable core diameter D, a preset cable core diameter matrix D ', D' (D1, D2, D3, D4)
Wherein D1 is a first preset value of a cable core, D2 is a second preset value of the cable core, D3 is a third preset value of the cable core, and D4 is a fourth preset value of the cable core, wherein D1 is more than D2 and less than D3 and less than D4;
when the diameter D of the cable core is smaller than D1, setting a first preset value A1 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when the diameter D1 of the cable core is less than D < D2, setting a second preset value A2 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when the diameter D2 of the cable core is less than D < D3, setting a third preset value A3 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when the diameter D3 of the cable core is less than D < D4, setting a fourth preset value A4 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
and when the diameter D of the cable core is larger than D4, setting the fourth preset value A4 of the thickness of the heat insulation layer as the thickness of the heat insulation layer.
It can be understood that, in the above embodiment, by setting the thermal insulation layer thickness a according to the relationship between the diameter D of the cable core and each preset thermal insulation layer, the accuracy of selection of the thermal insulation layer thickness a can be improved.
In some preferred embodiments of the present application, when the cable has an insulation layer, the cable further includes:
presetting a thermal insulation layer and insulating layer integral thickness matrix C, C (C1, C2, C3, C4), wherein C1 is a first preset value of the thermal insulation layer and insulating layer integral thickness, C2 is a second preset value of the thermal insulation layer and insulating layer integral thickness, C3 is a third preset value of the thermal insulation layer and insulating layer integral thickness, C4 is a fourth preset value of the thermal insulation layer and insulating layer integral thickness, and C1< C2< C3< C4;
when the diameter D of the cable core is smaller than D1, setting a first preset value C1 of the overall thickness of the heat insulation layer and the insulation layer as the overall thickness of the heat insulation layer and the insulation layer;
when the diameter D1 of the cable core is larger than D < D2, setting a second preset value C2 of the overall thickness of the heat insulation layer and the insulation layer as the overall thickness of the heat insulation layer and the insulation layer;
when the diameter D2 of the cable core is smaller than D < D3, setting a third preset value C3 of the overall thickness of the heat insulation layer and the insulating layer as the overall thickness of the heat insulation layer and the insulating layer;
when the diameter D3 of the cable core is smaller than D < D4, the fourth preset value C4 of the overall thickness of the heat insulation layer and the insulation layer is set as the overall thickness of the heat insulation layer and the insulation layer;
when the diameter D of the cable core is larger than D4, setting a fourth preset value C4 of the overall thickness of the heat insulation layer and the insulation layer as the overall thickness of the heat insulation layer and the insulation layer;
when the processing completion amount in the step C reaches the preset processing amount, acquiring the cable core straight data and the overall thickness data of the heat insulation layer and the insulating layer, and judging whether the overall thickness of the heat insulation layer and the insulating layer conforms to the overall thickness matrix C of the heat insulation layer and the insulating layer
It can be understood that, in some embodiments of the application, the overall thickness a of the heat insulation layer and the insulation layer is set according to the relationship between the diameter D of the cable core and the overall thickness of each preset heat insulation layer and insulation layer, so that the heat dissipation effect of the cable is ensured, the machining quality is monitored in real time through the preset machining amount, the machining material ratio is adjusted in time, and the machining quality of the finished cable is ensured.
In some preferred embodiments of the present application, the step of determining whether the overall thickness of the thermal insulation layer and the insulating layer meets a preset value specifically comprises:
when the overall thickness of the heat insulation layer and the insulation layer is larger than the overall thickness matrix C of the heat insulation layer and the insulation layer, the addition amount of the insulation layer material in unit length is reduced in real time;
when the overall thickness of the heat insulation layer and the insulation layer is smaller than the overall thickness matrix C of the heat insulation layer and the insulation layer, the addition amount of the insulation layer material in unit length is increased in real time;
and when the overall thickness of the heat insulation layer and the insulation layer accords with the overall thickness matrix C of the heat insulation layer and the insulation layer, the processing and the production are continued.
It can be understood that in some embodiments of the application, the thickness of the insulating layer is adjusted by dynamically adjusting the unit length adding amount of the insulating layer material in real time, so that the overall thickness of the insulating layer and the insulating layer meets a preset value, and the finished cable is guaranteed to have good heat dissipation performance.
Some preferred embodiments of the present application further comprise:
presetting a cable fire-protection grade matrix H, H (H1, H2, H3, H4), wherein H1 is a first preset cable fire-protection grade; h2 is a second preset cable fire rating, H3 is a third preset cable fire rating, and H4 is a fourth preset cable fire rating, wherein H1< H2< H3< H4;
and setting the addition amount of the flame-retardant layer material per unit length based on the relationship between the fire-retardant grade of the cable and the fire-retardant value of the flame-retardant layer.
It can be understood that, in some embodiments of the present application, the added amount per unit length of the material of the flame retardant layer is set through the relationship between the fire rating of the cable and the fire resistance value of the flame retardant layer, so that the accuracy of selecting the thickness of the flame retardant layer can be improved, and the situation that the thickness of the flame retardant layer is too low or the influence on the fire resistance of the cable is improved is avoided.
In some embodiments of the present application, the addition amount per unit length of the flame retardant layer material is specifically:
presetting a flame-retardant layer material unit length addition matrix K, K (K1, K2, K3, K4), wherein K1 is a first preset value of flame-retardant layer material addition, K2 is a second preset value of flame-retardant layer material addition, K3 is a third preset value of flame-retardant layer material addition, K4 is a fourth preset value of flame-retardant layer material addition, K1 is more than K2, and K3 is more than K4;
when the fire-retardant grade is a first preset grade H1, adding a first preset value K1 to the unit length of the flame-retardant layer material as the addition amount of the unit length of the flame-retardant layer material;
when the fire-retardant grade is a second preset grade H2, adding a second preset value K2 to the unit length of the flame-retardant layer material as the addition amount of the unit length of the flame-retardant layer material;
when the fire-retardant grade is a third preset grade H3, adding a third preset value K3 to the unit length of the flame-retardant layer material as the addition amount of the flame-retardant layer material;
and when the fire-retardant grade is a fourth preset grade H4, adding a fourth preset value K4 to the unit length of the flame-retardant layer material as the adding amount of the flame-retardant layer material.
It will be appreciated that, in some embodiments of the present application,
it can be understood that, in some embodiments of the present application, the added amount per unit length of the material of the flame retardant layer is set through the relationship between the fire rating of the cable and the fire resistance value of the flame retardant layer, so that the accuracy of selecting the thickness of the flame retardant layer can be improved, and the situation that the thickness of the flame retardant layer is too low or the influence on the fire resistance of the cable is improved is avoided.
Some embodiments of the present application further comprise:
presetting an integral thickness matrix E of the flame-retardant layer and the isolation layer, (E1, E2, E3 and E4), wherein E1 is a first preset value of the integral thickness of the flame-retardant layer and the isolation layer; e2 is a second preset value of the overall thickness of the flame-retardant layer and the isolation layer; e3 is a third preset value of the overall thickness of the flame-retardant layer and the isolation layer; e4 is a fourth preset value of the overall thickness of the flame-retardant layer and the isolation layer;
confirm fire-retardant layer and the whole thickness of isolation layer based on cable fire-protection rating, specifically do:
when the fire-proof grade H of the cable is H1, setting a first preset value E1 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
when the fire-proof grade H of the cable is H2, setting a second preset value E2 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
when the fire-proof grade H of the cable is H3, setting a third preset value E3 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
when the fire-proof grade H of the cable is H4, setting a fourth preset value E4 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
and E, when the processing completion amount in the step E reaches the preset processing amount, acquiring the fire-proof grade of the cable and the integral thickness data of the flame-retardant layer and the isolation layer, and judging whether the integral thickness of the flame-retardant layer and the isolation layer conforms to the integral thickness matrix E of the flame-retardant layer and the isolation layer.
It can be understood that, in the embodiment of this application, through cable protection level and each predetermine the whole thickness of fire-retardant layer and isolation layer between the relation settlement fire-retardant layer and the whole thickness of isolation layer E, guarantee the radiating effect and the flame retardant efficiency of cable to through predetermineeing the machining quality of work load real time monitoring, in time adjust processing material ratio, guarantee the processingquality of finished product cable.
In some embodiments of the present application, it is characterized in that, determining whether the overall thickness of the flame retardant layer and the isolation layer conforms to the overall thickness matrix E of the flame retardant layer and the isolation layer specifically includes:
when the overall thickness of the flame-retardant layer and the isolation layer is larger than the overall thickness matrix C of the flame-retardant layer and the isolation layer, the addition amount of the isolation layer material in unit length is reduced in real time;
when the integral thickness of the flame-retardant layer and the isolation layer is smaller than the integral thickness matrix C of the flame-retardant layer and the isolation layer, the addition amount of the isolation layer material in unit length is increased in real time;
and when the whole thickness of the flame-retardant layer and the whole thickness of the isolation layer accord with the whole thickness matrix C of the flame-retardant layer and the isolation layer, carrying out performance test on the cable.
It can be understood that, in some embodiments of the application, the degree of the isolation layer is adjusted by dynamically adjusting the addition amount of the isolation layer material in real time, so that the unit length of the isolation layer material is in accordance with the preset value, and the finished cable is ensured to have good heat dissipation performance on the basis of ensuring that the finished cable has good protection performance.
Some embodiments of this application provide a cable with fire prevention heat dissipation dual performance, include, the cable has set gradually cable core, insulating layer, isolation layer, fire-retardant layer from inside to outside, adopts the successive layer to cup joint.
In some embodiments of the present application, the cable core and the insulating layer are provided with a filler reinforcement.
According to the first concept of the application, the heat insulation layer is arranged, the overall thickness of the heat insulation layer and the insulation layer is determined according to the cable core, the unit length adding amount of the insulation layer material is dynamically adjusted by monitoring the overall thickness of the insulation layer and the insulation layer of the semi-finished cable in real time, the thickness of the insulation layer is controlled, and the heat dissipation of the cable is not influenced under the condition that the cable normally runs.
According to the second design of this application, set up the isolation layer to confirm the whole thickness of isolation layer and insulating layer according to predetermineeing fire rating, through the whole thickness of real time monitoring semi-manufactured goods electric isolation layer and fire-retardant layer, the length addition of dynamic adjustment isolation layer material unit controls the isolation layer thickness, can guarantee to play the effect on heat-insulating layer when the conflagration takes place, can not influence the heat dissipation of cable under the condition of cable normal operating again.
According to the third concept of the application, the low-smoke halogen-free flame-retardant polyolefin with the high oxygen index is used as the flame-retardant layer material, and the adding amount of the flame-retardant layer material is determined by the thickness of the isolation layer, so that the thickness of the flame-retardant layer is controlled, the material has good flame-retardant and fire-resistant characteristics, toxic gas cannot be generated under the fire condition, and the cable has excellent heat dissipation performance and excellent fire resistance.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A preparation method of a cable with double performances of fire prevention and heat dissipation is characterized by comprising the following steps:
a, step a: the method comprises the following steps of smelting, continuous casting and rolling, wire drawing, annealing and stranding aluminum alloy or copper to obtain conductor wires, and circularly compressing and stranding a plurality of conductor wires through a high-speed stranding machine to obtain cable cores;
step b: extruding an insulating material and the cable core in a single-screw extruder to obtain a cable with an insulating layer;
step c: uniformly spraying a cable heat insulation and cooling material on the surface of the cable with the insulating layer by adopting a spraying method, and cooling and solidifying the cable to obtain the cable with the heat insulation layer;
step d: carrying out extrusion coating treatment on the cable with the heat insulation layer through a coating machine to obtain a cable with an isolation layer;
step e: carrying out secondary extrusion treatment on the cable with the isolation layer through a coating machine, and extruding the low-smoke halogen-free flame-retardant polyolefin protective sleeve material with the high oxygen index on the surface of the cable with the isolation layer, so as to obtain the cable with the flame-retardant layer;
step f: performing various performance tests, and preparing a finished cable product after the tests are qualified;
in the step c, the thickness of a heat insulation layer of the subsequently manufactured cable with the heat insulation layer and the overall thickness of the heat insulation layer and the insulation layer are set based on the diameter of the cable core;
the specific setting of the heat insulation layer of the cable with the heat insulation layer is as follows:
presetting a thermal insulation layer thickness matrix A, and setting A (A1, A2, A3 and A4), wherein A1 is a first thermal insulation layer thickness preset value, A2 is a second thermal insulation layer thickness preset value, A3 is a third thermal insulation layer thickness preset value, A4 is a fourth thermal insulation layer thickness preset value, and A1 is more than A2 and more than A3 and more than A4;
obtaining a cable core diameter D, presetting a cable core diameter matrix D ', D' (D1, D2, D3, D4),
wherein D1 is a first preset value of a cable core, D2 is a second preset value of the cable core, D3 is a third preset value of the cable core, and D4 is a fourth preset value of the cable core, wherein D1 is more than D2 and less than D3 and less than D4;
when the diameter D of the cable core is smaller than D1, setting a first preset value A1 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when the diameter D1 of the cable core is less than D < D2, setting a second preset value A2 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when the diameter D2 of the cable core is less than D < D3, setting a third preset value A3 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when the diameter D3 of the cable core is less than D < D4, setting a fourth preset value A4 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when the diameter D of the cable core is larger than D4, setting a fourth preset value A4 of the thickness of the heat insulation layer as the thickness of the heat insulation layer;
when setting up the insulating layer of the cable that has the insulating layer, still include:
presetting a thermal insulation layer and insulating layer integral thickness matrix C, C (C1, C2, C3, C4), wherein C1 is a first preset value of the thermal insulation layer and insulating layer integral thickness, C2 is a second preset value of the thermal insulation layer and insulating layer integral thickness, C3 is a third preset value of the thermal insulation layer and insulating layer integral thickness, C4 is a fourth preset value of the thermal insulation layer and insulating layer integral thickness, and C1< C2< C3< C4;
when the diameter D of the cable core is smaller than D1, setting a first preset value C1 of the overall thickness of the heat insulation layer and the insulation layer as the overall thickness of the heat insulation layer and the insulation layer;
when the diameter D1 of the cable core is smaller than D < D2, setting a second preset value C2 of the overall thickness of the heat insulation layer and the insulating layer as the overall thickness of the heat insulation layer and the insulating layer;
when the diameter D2 of the cable core is smaller than D < D3, setting a third preset value C3 of the overall thickness of the heat insulation layer and the insulating layer as the overall thickness of the heat insulation layer and the insulating layer;
when the diameter D3 of the cable core is smaller than D < D4, the fourth preset value C4 of the overall thickness of the heat insulation layer and the insulation layer is set as the overall thickness of the heat insulation layer and the insulation layer;
when the diameter D of the cable core is larger than D4, setting a fourth preset value C4 of the overall thickness of the heat insulation layer and the insulation layer as the overall thickness of the heat insulation layer and the insulation layer;
and C, when the processing completion amount in the step C reaches the preset processing amount, acquiring diameter data of the cable core and integral thickness data of the heat insulation layer and the insulating layer, and judging whether the integral thickness of the heat insulation layer and the insulating layer conforms to an integral thickness matrix C of the heat insulation layer and the insulating layer.
2. The method for preparing a cable with dual performances of fire prevention and heat dissipation as claimed in claim 1, wherein the step of judging whether the overall thickness of the heat insulation layer and the insulation layer meets a preset value is specifically as follows:
when the overall thickness of the heat insulation layer and the insulation layer is larger than the overall thickness matrix C of the heat insulation layer and the insulation layer, the addition amount of the insulation layer material in unit length is reduced in real time;
when the overall thickness of the heat insulation layer and the insulation layer is smaller than the overall thickness matrix C of the heat insulation layer and the insulation layer, the addition amount of the insulation layer material in unit length is increased in real time;
and when the overall thickness of the heat insulation layer and the insulation layer accords with the overall thickness matrix C of the heat insulation layer and the insulation layer, continuing to process and produce.
3. The method of claim 1, wherein the cable with dual properties of fire prevention and heat dissipation is prepared by the following steps,
presetting a cable fire-protection grade matrix H, H (H1, H2, H3, H4), wherein H1 is a first preset cable fire-protection grade; h2 is a second preset cable fire rating, H3 is a third preset cable fire rating, and H4 is a fourth preset cable fire rating, wherein H1< H2< H3< H4;
and setting the addition amount of the flame-retardant layer material per unit length based on the relationship between the fire-retardant grade of the cable and the fire-retardant value of the flame-retardant layer.
4. The method for preparing a cable with dual performances of fire prevention and heat dissipation as defined in claim 3, wherein the addition amount per unit length of the flame-retardant layer material is specifically as follows:
presetting a flame-retardant layer material unit length addition matrix K, K (K1, K2, K3, K4), wherein K1 is a first preset value of flame-retardant layer material addition, K2 is a second preset value of flame-retardant layer material addition, K3 is a third preset value of flame-retardant layer material addition, K4 is a fourth preset value of flame-retardant layer material addition, K1 is more than K2, and K3 is more than K4;
when the fire-retardant grade is a first preset grade H1, adding a first preset value K1 to the unit length of the flame-retardant layer material as the addition amount of the unit length of the flame-retardant layer material;
when the fire-retardant grade is a second preset grade H2, adding a second preset value K2 to the unit length of the flame-retardant layer material as the addition amount of the unit length of the flame-retardant layer material;
when the fire-retardant grade is a third preset grade H3, adding a third preset value K3 to the unit length of the flame-retardant layer material as the addition amount of the flame-retardant layer material;
and when the fire-retardant grade is a fourth preset grade H4, adding a fourth preset value K4 to the unit length of the flame-retardant layer material as the addition amount of the flame-retardant layer material.
5. The method of claim 4, further comprising:
presetting an integral thickness matrix E of the flame-retardant layer and the isolation layer, (E1, E2, E3 and E4), wherein E1 is a first preset value of the integral thickness of the flame-retardant layer and the isolation layer; e2 is a second preset value of the overall thickness of the flame-retardant layer and the isolation layer; e3 is a third preset value of the overall thickness of the flame-retardant layer and the isolation layer; e4 is a fourth preset value of the overall thickness of the flame-retardant layer and the isolation layer;
confirm fire-retardant layer and the whole thickness of isolation layer based on cable fire-protection rating, specifically do:
when the fire-proof grade H of the cable is H1, setting a first preset value E1 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
when the fire-proof grade H of the cable is H2, setting a second preset value E2 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
when the fire-proof grade H of the cable is H3, setting a third preset value E3 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
when the fire-proof grade H of the cable is H4, setting a fourth preset value E4 of the overall thickness of the flame-retardant layer and the isolation layer as the overall thickness of the flame-retardant layer and the isolation layer;
and E, when the processing completion amount in the step E reaches the preset processing amount, acquiring the fire-proof grade of the cable and the whole thickness data of the flame-retardant layer and the isolation layer, and judging whether the whole thickness of the flame-retardant layer and the isolation layer conforms to the whole thickness matrix E of the flame-retardant layer and the isolation layer.
6. The method for preparing a cable with dual performances of fire prevention and heat dissipation as claimed in claim 5, wherein the step of determining whether the overall thickness of the flame retardant layer and the isolation layer conforms to the overall thickness matrix E of the flame retardant layer and the isolation layer is specifically as follows:
when the integral thickness of the flame-retardant layer and the isolation layer is larger than the integral thickness matrix E of the flame-retardant layer and the isolation layer, the addition amount of the isolation layer material in unit length is reduced in real time;
when the integral thickness of the flame-retardant layer and the isolation layer is smaller than the integral thickness matrix E of the flame-retardant layer and the isolation layer, the addition amount of the isolation layer material in unit length is increased in real time;
and when the overall thickness of the flame-retardant layer and the isolation layer accords with the overall thickness matrix E of the flame-retardant layer and the isolation layer, carrying out performance test on the cable.
7. The cable with the double performance of fire prevention and heat dissipation is prepared by the method for preparing the cable with the double performance of fire prevention and heat dissipation according to any one of claims 1 to 6, and is characterized in that the cable is sequentially provided with a cable core, an insulating layer, a heat insulating layer, an isolating layer and a flame retardant layer from inside to outside, and the cable is sleeved layer by layer.
8. The cable of claim 7, wherein the cable core and the insulating layer are provided with filler reinforcement.
CN202210356353.XA 2022-04-06 2022-04-06 Preparation method of cable with double performances of fire prevention and heat dissipation Active CN114724779B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102938276A (en) * 2012-11-19 2013-02-20 四川明星电缆股份有限公司 Manufacturing method of safety fire-resistant medium and high voltage cables
CN107068275A (en) * 2017-03-13 2017-08-18 远东电缆有限公司 A kind of green building presses fireproof cable in
CN108492921A (en) * 2018-05-04 2018-09-04 福建通宇电缆有限公司 A kind of fire-proof insulation cable
CN110136872A (en) * 2019-05-20 2019-08-16 欧之联电缆有限公司 High flexibility Resisting fractre fireproof cable and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6756691B2 (en) * 2017-11-07 2020-09-16 日立金属株式会社 Insulated wire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102938276A (en) * 2012-11-19 2013-02-20 四川明星电缆股份有限公司 Manufacturing method of safety fire-resistant medium and high voltage cables
CN107068275A (en) * 2017-03-13 2017-08-18 远东电缆有限公司 A kind of green building presses fireproof cable in
CN108492921A (en) * 2018-05-04 2018-09-04 福建通宇电缆有限公司 A kind of fire-proof insulation cable
CN110136872A (en) * 2019-05-20 2019-08-16 欧之联电缆有限公司 High flexibility Resisting fractre fireproof cable and preparation method thereof

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