CN117038186B - Underwater waterproof data cable - Google Patents
Underwater waterproof data cable Download PDFInfo
- Publication number
- CN117038186B CN117038186B CN202310888261.0A CN202310888261A CN117038186B CN 117038186 B CN117038186 B CN 117038186B CN 202310888261 A CN202310888261 A CN 202310888261A CN 117038186 B CN117038186 B CN 117038186B
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- Prior art keywords
- connection
- section
- cable
- wire stripping
- connection section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000012212 insulator Substances 0.000 claims abstract description 20
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 238000009954 braiding Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 27
- 230000007704 transition Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 238000001125 extrusion Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 229910000691 Re alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- DECCZIUVGMLHKQ-UHFFFAOYSA-N rhenium tungsten Chemical compound [W].[Re] DECCZIUVGMLHKQ-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H01B7/38—Insulated conductors or cables characterised by their form with arrangements for facilitating removal 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
- H01B7/14—Submarine cables
-
- 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
- H01B7/184—Sheaths comprising grooves, ribs or other projections
-
- 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
- H01B7/24—Devices affording localised protection against mechanical force or pressure
Abstract
The invention belongs to the technical field of cables, and particularly relates to an underwater waterproof data cable, which comprises a cable body, wherein the cable body comprises a central insulator and a plurality of conductor core wires arranged in the central insulator, a shielding layer is arranged on the outer side of the central insulator, a braiding layer is arranged on the outer side of the shielding layer, an outer jacket is arranged on the outer side of the braiding layer, the outer jacket comprises a plurality of groups of operation ends, each operation end comprises a wire stripping end and a connection end, each connection end comprises a middle section, a first connection section and a second connection section, the first connection section and the second connection section are in a circular truncated cone shape, one ends with larger diameters are directly connected with the middle section, one ends with smaller diameters of the first connection sections are connected with the wire stripping ends, the smallest diameters of the first connection sections are smaller than the diameters of the wire stripping ends, and one ends with smaller diameters of the second connection ends are connected with the wire stripping ends of the adjacent operation ends. The underwater waterproof data cable provided by the invention has a good waterproof effect.
Description
Technical Field
The invention belongs to the technical field of cables, and particularly relates to an underwater waterproof data cable.
Background
Because of the limitation of the use environment of the underwater data cable, the requirement on the waterproof performance of the cable joint position is higher, how to improve the waterproof performance of the underwater data cable joint position is always researched, and through many years of research, the applicant summarizes that the factors influencing the waterproof performance of the cable joint position mainly comprise two points:
1. the tensile property of the cable joint position comprises the degree of transmitting the tensile force to the cable joint when the cable is stretched by the outside and the degree of resisting the stretching of the cable joint;
2. the tightness of the seal at the cable joint.
Accordingly, the applicant has studied an underwater waterproof data cable having relatively good waterproof performance.
Disclosure of Invention
Aiming at the problem that the joint position of the underwater data cable is relatively poor in the prior art, the invention provides an underwater waterproof data cable so as to improve the waterproof performance of the underwater cable.
In order to achieve the above object, the present invention provides a technical solution as follows:
the utility model provides a waterproof data cable under water, includes the cable body, the cable body includes central insulator and sets up many conductor heart yearns in central insulator, and the outside of central insulator is provided with the shielding layer, the outside of shielding layer is provided with the weaving layer, the outside of weaving layer is provided with the oversheath, the oversheath includes multiunit operation end, the operation end includes wire stripping end and link, the link includes interlude, first linkage segment and second linkage segment, the shape of first linkage segment and second linkage segment is round platform shape, the great one end of diameter with the interlude is connected, the less one end of first linkage segment diameter with the wire stripping end is connected, and the minimum diameter of first linkage segment is less than the diameter of wire stripping end, the less one end of second linkage segment diameter is connected with the wire stripping end of adjacent operation end.
Preferably, the maximum diameter of the first connecting section, the maximum diameter of the second connecting section and the diameter of the intermediate section are the same, so that the first connecting section, the second connecting section and the intermediate section are smoothly transited; the diameter of the middle section is the same as the diameter of the wire stripping end.
Preferably, the cable connector further comprises a cable connector body, wherein round table-shaped holes are formed in two sides of the connector body, the round table-shaped holes in two sides are symmetrically arranged, one side with smaller diameter is located in the middle of the connector body, a sealing ring is arranged in the round table-shaped hole, and the sealing ring is matched with the round table-shaped holes; the middle part of the cable connector body is provided with an air suction hole communicated with the truncated cone-shaped holes on two sides, and the cable connector is provided with a one-way valve communicated with the air suction hole; the first connecting section or the second connecting section is sleeved in the sealing ring.
Preferably, a wiring terminal is arranged between the round table-shaped holes on the two sides; the air suction hole penetrates through the wiring end and is communicated with the circular truncated cone-shaped hole.
Preferably, a conductor core protection layer is arranged between the conductor core and the central insulator.
When the underwater waterproof data cable is used, the wire stripping end is used for stripping wires, the wire stripping is carried out at the connection position between the wire stripping end and the first connection section, so that a conductor core wire is exposed, after the wire stripping of two or two sections of waterproof data cables is finished, the two sections of waterproof data cables are connected by using a cable connecting piece, wherein the cable connecting piece comprises a connecting piece body, round table-shaped holes are formed in two sides of the connecting piece body, the round table-shaped holes in two sides are symmetrically arranged, one side with smaller diameter is positioned in the middle of the connecting piece body, a sealing ring is arranged in the round table-shaped hole, and the sealing ring is matched with the round table-shaped holes; the middle part of cable connector body is provided with the bleed hole that communicates with the round platform shape hole of both sides, be provided with on the cable connector with the check valve of bleed hole intercommunication, in the cable connector inserts the sealing washer with first linkage segment when using, because first sealing washer is round platform shape, the power that inserts the extrusion first sealing washer more inwards is first linkage segment, the leakproofness is better more, after two first linkage segments insert corresponding sealing washer, for the inside evacuation of connector body through the check valve, the first linkage segment of both sides is drawn close to the centre in the in-process of evacuation makes the sealing washer firmly extruded, the connection of waterproof data cable under water has been accomplished like this, wherein, the check valve also can use other valves to replace, as long as can realize the function that can close after the evacuation finishes. It should be noted that the second connection section may be used at the above-mentioned joint position, and the method of using the second connection section is the same as the method of using the first connection section, which is not repeated here.
According to the underwater waterproof data cable, the first connecting section and the second connecting section are arranged in the shape of the circular truncated cone, so that a plurality of uneven structures are formed on the surface of the cable body, a plurality of contact points are formed between the cable body and the contact surface, tension is not easily transmitted to the cable joint position when the cable is stretched by the outside, so that the waterproof performance of the joint position is not easily damaged; the sealing ring is extruded and deformed in an empty pumping mode, so that extrusion force is gradually reduced due to the fact that the sealing ring is not easily influenced by external factors such as vibration and the like compared with the mode of directly using bolts and the like for extrusion and deformation, sealing is firm at a cable joint, and waterproof performance is improved.
Drawings
FIG. 1 shows a schematic view of the internal structure of an underwater waterproof data cable in an embodiment;
FIG. 2 shows a schematic side view of a water-tight data cable in an embodiment;
FIG. 3 shows one of the schematic diagrams of a water-tight underwater data cable connection in an embodiment;
FIG. 4 shows a second schematic view of a water-tight underwater data cable connection in an embodiment;
the reference numerals in the drawings:
the cable comprises a central insulator 1, a conductor core wire 2, a shielding layer 3, a braiding layer 4, an outer sheath 5, a conductor core wire protective layer 6, a cable end 7, an intermediate section 8, a first connecting section 9, a second connecting section 10, a connecting piece body 11, a sealing ring 12, an air suction hole 13 and a one-way valve 14.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In an embodiment, referring to fig. 1 and 2, the invention provides an underwater waterproof data cable, which comprises a cable body, wherein the cable body comprises a central insulator 1 and a plurality of conductor cores 2 arranged in the central insulator, a shielding layer 3 is arranged on the outer side of the central insulator, and the central insulator can be made of materials such as flame retardant rubber, flexible flame retardant fibers and the like; the outer side of the shielding layer is provided with a braiding layer 4 for improving the stretching resistance and the wear resistance of the cable, and the braiding layer can be made of tungsten-rhenium alloy materials; an outer sheath 5 is arranged on the outer side of the braiding layer, a PUR outer sheath can be generally used as the outer sheath, and a conductor core wire protective layer 6 can be arranged between the conductor core wire and the central insulator to protect the conductor core wire; the outer sheath comprises a plurality of groups of operation ends, each operation end comprises a wire stripping end 7 and a connection end, each connection end comprises a middle section 8, a first connection section 9 and a second connection section 10, the shapes of the first connection section and the second connection section are round tables, one end with larger diameter is connected with the middle section, one end with smaller diameter of the first connection section is connected with the wire stripping end, the minimum diameter of the first connection section is smaller than the diameter of the wire stripping end, and one end with smaller diameter of the second connection section is connected with the wire stripping end of the adjacent operation end; in actual production, the maximum diameter of the first connecting section, the maximum diameter of the second connecting section and the diameter of the intermediate section are preferably set to be the same, so that the first connecting section, the second connecting section and the intermediate section are smoothly transited; the diameter of the middle section and the diameter of the wire stripper terminal are set to be the same.
When the underwater waterproof data cable is used, the wire stripping end is used for stripping wires, stripping wires are connected between the wire stripping end and the first connecting section along the connecting position, so that conductor core wires are exposed, and after two or two sections of waterproof data cables are stripped, the two sections of waterproof data cables are connected by using a cable connecting piece, see fig. 3, wherein the cable connecting piece comprises a connecting piece body 11, two sides of the connecting piece body are provided with round table-shaped holes, the round table-shaped holes on the two sides are symmetrically arranged, one side with smaller diameter is positioned in the middle of the connecting piece body, a sealing ring 12 is arranged in the round table-shaped hole, and the sealing ring is matched with the round table-shaped holes; the middle part of cable connector body is provided with the bleed hole 13 with the round platform shape hole intercommunication of both sides, be provided with on the cable connector with the check valve 14 of bleed hole intercommunication, in the cable connector inserts the sealing washer with first linkage segment when using, because first sealing washer is round platform shape, the power that inserts the extrusion first sealing washer more inwards is first linkage segment, the leakproofness is better more, after two first linkage segments insert corresponding sealing washer, for the inside evacuation of connector body through the check valve, the first linkage segment of both sides is drawn close in the middle at the in-process of evacuation makes the sealing washer firmly extruded, the connection of waterproof data cable under water has been accomplished like this, wherein, the check valve also can use other valves to replace, as long as can realize the function that can close after the evacuation finishes. It should be noted that the second connection section may be used at the above-mentioned joint position, and the method of using the second connection section is the same as the method of using the first connection section, which is not repeated here. In one embodiment, referring to fig. 4, the connector may further be provided with a terminal 15 between the truncated cone-shaped holes on both sides; the air suction hole penetrates through the wiring end and is communicated with the circular truncated cone-shaped hole. In this way, the conductor cores on the two sides are not directly connected, are indirectly connected through the wiring terminal, and then are adsorbed on the corresponding first connecting section or second connecting section in a suction mode.
According to the underwater waterproof data cable, the first connecting section and the second connecting section are arranged in the shape of the circular truncated cone, so that a plurality of uneven structures are formed on the surface of the cable body, a plurality of contact points are formed between the cable body and the contact surface, tension is not easily transmitted to the cable joint position when the cable is stretched by the outside, so that the waterproof performance of the joint position is not easily damaged; the sealing ring is extruded and deformed in a mode of drawing the air, so that extrusion force is gradually reduced due to the fact that the sealing ring is not easily influenced by external factors such as vibration and the like compared with a mode of directly using bolts and the like for extrusion and deformation, the cable joint is firmly sealed, and waterproof performance is improved; in addition, the cable core wire is embedded into the central insulator, when the central insulator is subjected to vacuum flushing, the central insulator is slightly deformed inwards under the action of negative pressure, so that the connection positions of the cable core wires on two sides are provided with a margin, and when the sealing ring is slightly deformed to generate buffering when the outside is stressed, the connection positions of the cable core wires are not easy to be tensioned and damaged.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).
Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The underwater waterproof data cable is characterized by comprising a cable body, wherein the cable body comprises a central insulator (1) and a plurality of conductor core wires (2) arranged in the central insulator, a shielding layer (3) is arranged on the outer side of the central insulator, a braiding layer (4) is arranged on the outer side of the shielding layer, an outer jacket (5) is arranged on the outer side of the braiding layer, the outer jacket comprises a plurality of groups of operation ends, each operation end comprises a wire stripping end (7) and a connection end, each connection end comprises a middle section (8), a first connection section (9) and a second connection section (10), the first connection section and the second connection section are in a round table shape, one ends with larger diameters are connected with the middle section, one ends with smaller diameters of the first connection sections are connected with the wire stripping ends, the minimum diameters of the first connection sections are smaller than the diameters of the wire stripping ends, and one ends with smaller diameters of the second connection sections are connected with wire stripping ends of adjacent operation ends;
the cable connector comprises a connector body (11), wherein round table-shaped holes are formed in two sides of the connector body, the round table-shaped holes in two sides are symmetrically arranged, one side with smaller diameter is located in the middle of the connector body, a sealing ring (12) is arranged in the round table-shaped hole, and the sealing ring is matched with the round table-shaped holes;
the middle part of the cable connector body is provided with an air suction hole (13) communicated with the truncated cone-shaped holes on two sides, and the cable connector is provided with a one-way valve (14) communicated with the air suction hole;
the first connecting section or the second connecting section is sleeved in the sealing ring.
2. The underwater waterproof data cable of claim 1 wherein the maximum diameter of the first connection section, the maximum diameter of the second connection section and the diameter of the intermediate section are the same such that the first connection section, the second connection section and the intermediate section transition smoothly;
the diameter of the middle section is the same as the diameter of the wire stripping end.
3. An underwater waterproof data cable as in claim 1, characterized in that,
a wiring terminal (15) is arranged between the round table-shaped holes on the two sides;
the air suction hole penetrates through the wiring end and is communicated with the circular truncated cone-shaped hole.
4. An underwater watertight data cable as claimed in claim 1, characterized in that a conductor core shielding (6) is provided between the conductor core and the central insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310888261.0A CN117038186B (en) | 2023-07-19 | 2023-07-19 | Underwater waterproof data cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310888261.0A CN117038186B (en) | 2023-07-19 | 2023-07-19 | Underwater waterproof data cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117038186A CN117038186A (en) | 2023-11-10 |
| CN117038186B true CN117038186B (en) | 2024-03-26 |
Family
ID=88638110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310888261.0A Active CN117038186B (en) | 2023-07-19 | 2023-07-19 | Underwater waterproof data cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117038186B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290645A (en) * | 2011-07-15 | 2011-12-21 | 广东长牛电气有限公司 | Multi-core cable joint and mounting method thereof |
| CN209328597U (en) * | 2018-01-22 | 2019-08-30 | 台山市万安电线电缆有限公司 | A kind of aluminium core overhead insulating water repellent electric cable |
| CN209516608U (en) * | 2019-04-09 | 2019-10-18 | 上海蓝科电气有限公司 | A kind of metallic double seals armored cable waterproof connector |
| CN110829107A (en) * | 2019-10-14 | 2020-02-21 | 秦燕 | High-voltage multi-core cable intermediate connector |
| CN111987495A (en) * | 2019-05-23 | 2020-11-24 | 广东昊阳电力建设有限公司 | Cable mold injection welding type straight joint |
| CN112467681A (en) * | 2020-12-09 | 2021-03-09 | 国网河南省电力公司孟州市供电公司 | Intermediate head protective structure of power supply sealed cable |
| CN214255675U (en) * | 2021-01-28 | 2021-09-21 | 江苏中天科技电缆附件有限公司 | Insulating joint |
| CN114421193A (en) * | 2021-12-25 | 2022-04-29 | 安徽天康集团数据线缆有限公司 | Special super-five cable for aerospace |
| CN217182496U (en) * | 2022-01-26 | 2022-08-12 | 昆明摩天电缆有限公司 | Waterproof high-flame-retardant fire-resistant cable |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3010847B1 (en) * | 2013-09-19 | 2017-12-29 | Nexans | JUNCTION OF SUPERCONDUCTING CABLES |
| US10741975B2 (en) * | 2018-10-19 | 2020-08-11 | Aptiv Technologies Limited | Sheilded cable assembly and electromagnetic shield terminal assembly for same |
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2023
- 2023-07-19 CN CN202310888261.0A patent/CN117038186B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290645A (en) * | 2011-07-15 | 2011-12-21 | 广东长牛电气有限公司 | Multi-core cable joint and mounting method thereof |
| CN209328597U (en) * | 2018-01-22 | 2019-08-30 | 台山市万安电线电缆有限公司 | A kind of aluminium core overhead insulating water repellent electric cable |
| CN209516608U (en) * | 2019-04-09 | 2019-10-18 | 上海蓝科电气有限公司 | A kind of metallic double seals armored cable waterproof connector |
| CN111987495A (en) * | 2019-05-23 | 2020-11-24 | 广东昊阳电力建设有限公司 | Cable mold injection welding type straight joint |
| CN110829107A (en) * | 2019-10-14 | 2020-02-21 | 秦燕 | High-voltage multi-core cable intermediate connector |
| CN112467681A (en) * | 2020-12-09 | 2021-03-09 | 国网河南省电力公司孟州市供电公司 | Intermediate head protective structure of power supply sealed cable |
| CN214255675U (en) * | 2021-01-28 | 2021-09-21 | 江苏中天科技电缆附件有限公司 | Insulating joint |
| CN114421193A (en) * | 2021-12-25 | 2022-04-29 | 安徽天康集团数据线缆有限公司 | Special super-five cable for aerospace |
| CN217182496U (en) * | 2022-01-26 | 2022-08-12 | 昆明摩天电缆有限公司 | Waterproof high-flame-retardant fire-resistant cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117038186A (en) | 2023-11-10 |
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