CN113707378A - Environment-friendly high-precision remote transmission physical foaming polyolefin insulated instrument cable - Google Patents
Environment-friendly high-precision remote transmission physical foaming polyolefin insulated instrument cable Download PDFInfo
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- CN113707378A CN113707378A CN202111075362.3A CN202111075362A CN113707378A CN 113707378 A CN113707378 A CN 113707378A CN 202111075362 A CN202111075362 A CN 202111075362A CN 113707378 A CN113707378 A CN 113707378A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
- H01B7/425—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid the construction being bendable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Cable Accessories (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses an environment-friendly high-precision remote transmission physical foaming polyolefin insulation instrument cable which comprises cable main bodies distributed in a circumferential array manner, wherein a protection assembly is also arranged among the cable main bodies, and comprises protection bags arranged at the axle centers of the cable main bodies; the heat conducting fins are arranged at the ports, extending to the outer part of the protective bag, of the heat conducting pipes; the laminating is connected in the radiator-grid in the conducting strip outside, and cable main part and protection subassembly outside still are provided with the protection sleeve spare. This high accurate remote transmission physics of environment-friendly foaming polyolefin warp insulation instrument cable, through on conducting the effort to the radiator-grid, make the radiator-grid deformation in-process provide a reverse effort to the pressurized side through these several conducting strips to offset pressurized effort, soak the radiator-grid through the coolant liquid in the elastic support piece atress extrusion protection bag simultaneously, and make and soak in the radiator-grid receives the effort extrusion of recovering deformation to return the protection bag, accomplish heat cycle.
Description
Technical Field
The invention relates to the technical field of cables, in particular to an environment-friendly high-precision long-distance transmission physically foamed polyolefin insulated instrument cable.
Background
Instrument cable generally is used for providing the electric energy for electrical equipment such as measuring instrument and the control instrument of field installation, good stability has during for guaranteeing instrument cable remote transmission, adopt skin bubble skin physics foaming polyene warp as instrument cable's insulation, can realize signal remote transmission, but discover in the in-service use process, the instrument cable of erectting on the wire tower can be crooked under the action of gravity, when meetting strong wind weather, instrument cable can be along with strong wind swing, and make mutual extrusion friction produce a large amount of heats between the instrument cable at the swing in-process, and when laying the oppression effort that receives the vehicle on ground at the swing in-process, can make instrument cable receive great extrusion effort, lead to instrument cable to appear damaging easily, influence instrument cable's remote signal transmission effect.
Disclosure of Invention
The invention aims to provide an environment-friendly high-precision long-distance transmission physically-foamed polyolefin insulated instrument cable which is used for providing a bending-resistant protection effect for the instrument cable, providing a reverse acting force to offset a compression acting force when the instrument cable is subjected to the compression acting force, and simultaneously realizing thermal circulation of cooling liquid in the instrument cable and improving a heat dissipation effect.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly high-precision remote transmission physical foaming polyolefin insulated instrument cable comprises cable main bodies distributed in a circumferential array, wherein a protection assembly is arranged among the cable main bodies and comprises protection bags arranged at the axle centers of the cable main bodies; heat conducting members arranged in a circumferential array inside the protective bag; a heat conduction pipe with one end installed on the heat conduction piece and the other end extending to the outside of the protection bag; the heat conducting fins are arranged on the heat conducting pipes and extend to the external ports of the protective bags; the heat dissipation net is attached to the outer side of the heat conducting fin, protective sleeve pieces are further arranged outside the cable main body and the protective assembly, and each protective sleeve piece comprises an elastic support piece filled outside the cable main body and the protective assembly; the inner sheath, the inner elastic layer, the inner connecting layer, the mounting layer, the outer connecting layer, the outer elastic layer and the outer sheath are sequentially arranged on the outer side of the elastic supporting piece.
Preferably, the cable main part includes the cable core, the cable core outside is provided with the cable insulation layer that adopts skin bubble skin physics foaming polyolefin material to make, the cable core with cable insulation layer constitutes the single strand cable, and the single strand cable is provided with eight altogether, and two liang of pair twists into four group's double strand cables, and four group's double strand cables are the circumference array and distribute, and axle center department is provided with the tensile rope.
Preferably, the cable insulation layer and the tensile rope are filled with a filling layer, a shielding layer is arranged outside the filling layer, and a cable sheath is arranged outside the shielding layer.
Preferably, the protection bag is of a cylindrical hollow structure and is distributed in a linear array along the axial direction of the cable, and the cooling liquid is arranged inside the protection bag.
Preferably, the heat conducting part is of a semi-elliptical hemispherical hollow structure, the surface of the heat conducting part is provided with a plurality of through holes, one end of the heat conducting pipe is connected to the semi-elliptical top position of the heat conducting part and communicated with the inner cavity of the heat conducting part, and the hemispherical parts of the heat conducting part are all in fit connection.
Preferably, the other end of the heat conducting pipe penetrates through the elastic supporting piece, the inner sheath and the inner elastic layer and extends into an arc-shaped groove formed in the outer side of the inner connecting layer.
Preferably, the heat conducting fin is of an arc-shaped structure and is arranged in an arc-shaped groove on the outer side of the inner connecting layer, the heat conducting fin is connected with a port at the other end of the heat conducting pipe, which is located in the arc-shaped groove of the inner connecting layer, and a connecting hole communicated with the heat conducting pipe is formed in the surface of the heat conducting fin.
Preferably, the radiator-grid is of an annular structure, and the radiator-grid is distributed in the installation layer along the axial linear array of the cable, the inner side of the radiator-grid is attached to the outer side of the inner connecting layer and the heat conducting fins, and the outer side of the radiator-grid is attached to the inner side of the outer connecting layer.
Preferably, the inner elastic layer is made of elastic rubber materials and is assembled to enable the inner connecting layer to be tightly attached to the heat dissipation net arranged in the mounting layer.
Preferably, the outer elastic layer is made of elastic rubber materials and is assembled to enable the outer connecting layer to be tightly attached to the heat dissipation net arranged in the mounting layer.
In the technical scheme, the invention has the beneficial effects that:
1. this high accurate remote transmission physics of environment-friendly foams polyolefin is through insulating instrument cable, on conducting the effort with several other heat-conducting members through the heat-conducting member to the conducting strip that the heat pipe is connected on making these several heat-conducting members conducts the effort to the radiator-grid, makes the radiator-grid evenly absorb the effort, and provides a counter force to the pressurized side through these several conducting strips in radiator-grid deformation process, in order to offset the pressurized effort.
2. The environment-friendly high-precision remote transmission physical foaming polyolefin cable is soaked in the cooling liquid in the protection bag through the elastic support part under the extrusion of the acting force, and after the acting force applied to the elastic support part is cancelled, the soaked heat dissipation net is extruded back into the protection bag under the acting force of the recovery deformation, so that the heat circulation is completed.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a front sectional view of the present invention;
FIG. 2 is a side cross-sectional structural view of the present invention;
FIG. 3 is a front cross-sectional structural view of the cable body of the present invention;
FIG. 4 is a partial front cross-sectional structural schematic view of the protective assembly of the present invention;
FIG. 5 is an enlarged view of point A of FIG. 1 according to the present invention.
In the figure: 1. a cable body; 11. a cable core; 12. a cable insulation layer; 13. a tensile strand; 14. a filling layer; 15. a shielding layer; 16. a cable jacket; 2. a protection component; 21. a protective bag; 22. a heat conductive member; 23. a heat conducting pipe; 24. a heat conductive sheet; 25. a heat-dissipating web; 3. a protective sheathing member; 30. an elastic support member; 31. an inner sheath; 32. an inner elastic layer; 33. an inner connection layer; 34. mounting a layer; 35. an outer tie layer; 36. an outer elastic layer; 37. an outer sheath.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1 and fig. 3, the present invention provides a technical solution: an environment-friendly high-precision remote transmission physical foaming polyolefin insulation instrument cable comprises a cable main body 1 distributed in a circumferential array, wherein the cable main body 1 comprises cable cores 11, cable insulation layers 12 made of a skin foaming physical foaming polyolefin material are arranged outside the cable cores 11, single-stranded cables are formed by the cable cores 11 and the cable insulation layers 12, the single-stranded cables are totally provided with eight cables, every two cables are twisted in pairs to form four groups of double-stranded cables, the four groups of double-stranded cables are distributed in a circumferential array, tensile ropes 13 are arranged at the axes, filling layers 14 are filled outside the cable insulation layers 12 and the tensile ropes 13, shielding layers 15 are arranged outside the filling layers 14, cable sheaths 16 are arranged outside the shielding layers 15, the cable insulation layers 12 made of the skin foaming physical foaming polyolefin material can provide good insulation effects for the cable cores 11 through the structural design, the cable cores 11 and the cable insulation layers 12 form single-stranded cables and are twisted in pairs to form four groups of double-stranded cables, and set up the stretch-proofing rope 13 in four groups of bifilar cable axle centers department that the circumference array distributes, can provide good tensile-resistance for cable main body 1, make it difficult fracture, and further, filling layer 14 can make the packing of the single strand cable that cable core 11 and cable insulation 12 constitute and stretch-proofing rope 13 inseparable, and shielding layer 15 can prevent external signal interference, and cable sheath 16 can play the guard action.
As shown in fig. 1, 2, 4 and 5, a protection assembly 2 is further disposed between the plurality of cable bodies 1, the protection assembly 2 includes protection bags 21 disposed at the axes of the plurality of cable bodies 1, the protection bags 21 are cylindrical hollow structures and are distributed in a linear array along the axial direction of the cable, a cooling liquid is disposed inside the protection bags 21, and the cooling liquid inside the protection bags 21 is convenient to absorb heat dissipated by the cable bodies 1 through the structural design; the heat conducting pieces 22 are arranged in the protective bag 21 in a circumferential array mode, the heat conducting pieces 22 are of semi-elliptical hemispherical hollow structures, a plurality of through holes are formed in the surfaces of the heat conducting pieces 22, one end of each heat conducting pipe 23 is connected to the position of the semi-elliptical top of each heat conducting piece 22 and communicated with the inner cavity of each heat conducting piece 22, and the hemispherical parts of the heat conducting pieces 22 are in fit connection; a heat pipe 23 having one end mounted on the heat conducting member 22 and the other end extending to the outside of the protective bag 21, wherein the other end of the heat pipe 23 penetrates through the elastic supporting member 30, the inner sheath 31 and the inner elastic layer 32 and extends into an arc-shaped groove formed on the outer side of the inner connecting layer 33; the heat conducting fin 24 is arranged at the port of the heat conducting pipe 23 extending to the outside of the protective bag 21, the heat conducting fin 24 is of an arc-shaped structure and is arranged in the arc-shaped groove at the outer side of the inner connecting layer 33, the heat conducting fin 24 is connected with the port of the other end of the heat conducting pipe 23 positioned in the arc-shaped groove of the inner connecting layer 33, the surface of the heat conducting fin is provided with a connecting hole communicated with the heat conducting pipe 23, and the structural design is convenient for the heat conducting piece 22 to absorb part of the temperature of the cooling liquid and then conduct the cooling liquid to the heat conducting fin 24 through the heat conducting pipe 23; the heat dissipation net 25 is attached to the outer side of the heat conducting fin 24, the heat dissipation net 25 is of an annular structure and is distributed in the installation layer 34 in a linear array mode along the axial direction of the cable, the inner side of the heat dissipation net 25 is attached to the outer sides of the inner connecting layer 33 and the heat conducting fin 24, and the outer side of the heat dissipation net 25 is attached to the inner side of the outer connecting layer 35, so that the heat dissipation net 25 absorbs and dissipates the temperature on the heat conducting fin 24, meanwhile, when the cable body 1, the protection assembly 2 and the protection sleeve 3 are shaken under the action of wind power, the cooling liquid in the protection bag 21 is extruded into the inner cavity of the heat conducting piece 22 through the through hole of the heat conducting piece 22 by the extrusion acting force generated when the elastic support member 30 is bent, then enters the heat conducting pipe 23 and enters the cavity of the installation layer 34 for installing the heat dissipation net 25 through the connecting hole of the heat conducting fin 24 connected with the other end of the heat conducting pipe 23, and meanwhile, the cavity of the installation layer 34 is expanded by the hydraulic acting force of the cooling liquid, at this time, the cavity of the mounting layer 34 is filled with the coolant and completely immerses the heat dissipation net 25, the heat of the coolant is absorbed by the heat dissipation net 25 to cool the coolant, and meanwhile, when the protective sleeve 3 is subjected to a shaking action or a pressing action such as an external vehicle, and the elastic support 30 presses the coolant in the protective bag 21 to the heat dissipation net 25, the heat conduction member 22 on the pressed side simultaneously applies a pressing action to other heat conduction members 22 and moves the heat conduction members 22 outwards, the protective sleeve 3 deforms accordingly through the heat conduction sheets 24 connected to the heat conduction pipes 23 on the heat conduction members 22, and applies an action in the opposite direction to the pressed side to offset a part of the action of the shaking action of the cable body 1, the protective assembly 2 and the protective sleeve 3 due to wind, and the heat conduction sheets 24 conduct the action to the heat dissipation net 25 and are absorbed by the heat dissipation net 25, when the cable body 1, the protection component 2 and the protective sleeve 3 shake to the utmost and shake reversely, under the action of the deformation recovery of the protective sleeve 3, the plurality of heat conducting pieces 22 can move to the original positions, at the moment, the inner elastic layer 32 between the inner sheath 31 and the inner connecting layer 33 and the outer elastic layer 36 between the outer connecting layer 35 and the outer sheath 37 can exert an elastic action force on the mounting layer 34, the cooling liquid in the cavity of the mounting layer 34 penetrates through the connecting holes of the heat conducting pieces 24 to be extruded into the heat conducting pipes 23, then enters the inner cavity of the heat conducting pieces 22 and penetrates through the through holes of the heat conducting pieces 22 to re-enter the protective bag 21, and the heat dissipation circulation of the cooling liquid is completed.
As further shown in fig. 2 and 5, a protective sleeve 3 is further disposed outside the cable main body 1 and the protective assembly 2, and the protective sleeve 3 includes an elastic support member 30 filled outside the cable main body 1 and the protective assembly 2; an inner sheath 31, an inner elastic layer 32, an inner connection layer 33, a mounting layer 34, an outer connection layer 35, an outer elastic layer 36 and an outer sheath 37 which are arranged on the outer side of the elastic support member 30 in sequence, wherein the inner elastic layer 32 is made of elastic rubber, the inner elastic layer 32 is assembled to enable the inner connection layer 33 to be tightly attached to the heat dissipation net 25 arranged in the mounting layer 34, the outer elastic layer 36 is made of elastic rubber, the outer elastic layer 36 is assembled to enable the outer connection layer 35 to be tightly attached to the heat dissipation net 25 arranged in the mounting layer 34, the structure design is convenient for the elastic support member 30 to provide a positioning effect for the cable main body 1 and the protection assembly 2, the inner sheath 31 provides protection for the elastic support member 30 and the inner elastic layer 32, enables the inner connection layer 33 to be tightly attached to the inner side of the mounting layer 34 under the elastic acting force of the inner elastic layer 32, the outer sheath 37 provides protection for the outer elastic layer 36, and enables the outer connection layer 35 to be tightly attached to the outer side of the mounting layer 34 under the elastic acting force of the outer elastic layer 36, so that the elastic force of the inner elastic layer 32 and the outer elastic layer 36 presses the coolant in the cavity where the mounting layer 34 is permanently mounted to the heat-radiating net 25 into the protective bag 21 through the inner joining layer 33 and the outer joining layer 35.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. The utility model provides a high-accuracy remote transmission physics foaming polyolefin insulated instrument cable of environment-friendly which characterized in that: comprises cable bodies (1) distributed in a circumferential array, a plurality of protection components (2) are arranged among the cable bodies (1),
the protection assembly (2) comprises protection bags (21) arranged at the axle centers of the cable main bodies (1);
heat conducting members (22) arranged in a circumferential array inside the protective bag (21);
a heat conduction pipe (23) having one end mounted to the heat conduction member (22) and the other end extending to the outside of the protective bag (21);
a heat conduction sheet (24) mounted on the heat conduction pipe (23) and extending to the external port of the protection bag (21);
a heat radiation net (25) attached and connected to the outer side of the heat conducting fin (24),
a protective sleeve piece (3) is arranged outside the cable main body (1) and the protective component (2),
the protective sleeve (3) comprises an elastic support (30) filled outside the cable main body (1) and the protective component (2);
the elastic support piece (30) is sequentially arranged on the inner sheath (31), the inner elastic layer (32), the inner connecting layer (33), the mounting layer (34), the outer connecting layer (35), the outer elastic layer (36) and the outer sheath (37) on the outer side of the elastic support piece.
2. The environment-friendly high-precision long-distance transmission physically foamed polyolefin insulated instrument cable as claimed in claim 1, wherein: cable main part (1) includes cable core (11), cable core (11) outside is provided with cable insulation layer (12) that adopt skin bubble skin physics foaming polyolefin material to make, cable core (11) with cable insulation layer (12) constitute the single strand cable, and the single strand cable is provided with eight altogether, and two liang of pair twists into four group's double strand cables, and four group's double strand cables are the circumference array and distribute, and axle center department is provided with tensile rope (13).
3. The environment-friendly high-precision long-distance transmission physically foamed polyolefin insulated instrument cable of claim 2, wherein: the cable comprises a cable insulation layer (12) and a tensile rope (13), wherein a filling layer (14) is filled outside the cable insulation layer (12) and the tensile rope (13), a shielding layer (15) is arranged outside the filling layer (14), and a cable sheath (16) is arranged outside the shielding layer (15).
4. The environment-friendly high-precision long-distance transmission physically foamed polyolefin insulated instrument cable as claimed in claim 1, wherein: the protection bag (21) is of a cylindrical hollow structure and is distributed in a linear array along the axial direction of the cable, and cooling liquid is arranged inside the protection bag (21).
5. The environment-friendly high-precision long-distance transmission physically foamed polyolefin insulated instrument cable as claimed in claim 1, wherein: the heat conducting piece (22) is of a semi-elliptical hemispherical hollow structure, a plurality of through holes are formed in the surface of the heat conducting piece, one end of the heat conducting pipe (23) is connected to the semi-elliptical top position of the heat conducting piece (22) and communicated with the inner cavity of the heat conducting piece (22), and the hemispherical parts of the heat conducting piece (22) are all in attached connection.
6. The environment-friendly high-precision long-distance transmission physically foamed polyolefin insulated instrument cable as claimed in claim 1, wherein: the other end of the heat conducting pipe (23) penetrates through the elastic supporting piece (30), the inner sheath (31) and the inner elastic layer (32) and extends into an arc-shaped groove formed in the outer side of the inner connecting layer (33).
7. The environment-friendly high-precision long-distance transmission physically foamed polyolefin insulated instrument cable as claimed in claim 1, wherein: the heat conducting fins (24) are of arc structures and are arranged in arc grooves in the outer sides of the inner connecting layers (33), the heat conducting fins (24) are connected with ports, located in the arc grooves of the inner connecting layers (33), of the other ends of the heat conducting pipes (23), and connecting holes communicated with the heat conducting pipes (23) are formed in the surfaces of the heat conducting fins.
8. The environment-friendly high-precision long-distance transmission physically foamed polyolefin insulated instrument cable as claimed in claim 1, wherein: the heat dissipation net (25) is of an annular structure and is distributed in the installation layer (34) along a cable axial linear array, the inner side of the heat dissipation net (25) is attached to the outer side of the inner connection layer (33) and the heat conducting fins (24), and the outer side of the heat dissipation net (25) is attached to the inner side of the outer connection layer (35).
9. The environment-friendly high-precision long-distance transmission physically foamed polyolefin insulated instrument cable as claimed in claim 1, wherein: interior elastic layer (32) are made for the elastic rubber material, interior elastic layer (32) are assembled and are used for making interior articulamentum (33) closely laminate in set up in installation layer (34) radiator-grid (25).
10. The environment-friendly high-precision long-distance transmission physically foamed polyolefin insulated instrument cable as claimed in claim 1, wherein: the outer elastic layer (36) is made of elastic rubber materials, and the outer elastic layer (36) is assembled to enable the outer connecting layer (35) to be tightly attached to the radiating net (25) arranged in the mounting layer (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111075362.3A CN113707378B (en) | 2021-09-14 | 2021-09-14 | Environment-friendly high-precision long-distance transmission physical foaming polyolefin insulation instrument cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111075362.3A CN113707378B (en) | 2021-09-14 | 2021-09-14 | Environment-friendly high-precision long-distance transmission physical foaming polyolefin insulation instrument cable |
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| Publication Number | Publication Date |
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| CN113707378A true CN113707378A (en) | 2021-11-26 |
| CN113707378B CN113707378B (en) | 2023-09-26 |
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| CN202111075362.3A Active CN113707378B (en) | 2021-09-14 | 2021-09-14 | Environment-friendly high-precision long-distance transmission physical foaming polyolefin insulation instrument cable |
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| CN115762894A (en) * | 2023-01-06 | 2023-03-07 | 京缆电缆有限公司 | Safe type 110kV high tension cable convenient to connect |
| CN117275824A (en) * | 2023-10-30 | 2023-12-22 | 人民电缆集团有限公司 | High-performance fireproof cable with insulating corrugated copper sheath and composite mica tape for high-speed rail |
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| CN209822326U (en) * | 2019-04-29 | 2019-12-20 | 久盛电气股份有限公司 | High-temperature-resistant double-shielded cable for nuclear |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115762894A (en) * | 2023-01-06 | 2023-03-07 | 京缆电缆有限公司 | Safe type 110kV high tension cable convenient to connect |
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| CN117275824A (en) * | 2023-10-30 | 2023-12-22 | 人民电缆集团有限公司 | High-performance fireproof cable with insulating corrugated copper sheath and composite mica tape for high-speed rail |
| CN117275824B (en) * | 2023-10-30 | 2024-05-31 | 人民电缆集团有限公司 | High-performance fireproof cable with insulating corrugated copper sheath and composite mica tape for high-speed rail |
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| CN113707378B (en) | 2023-09-26 |
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