CN203013290U - 400Hz parallel-connected balance-structured cable for ships - Google Patents
400Hz parallel-connected balance-structured cable for ships Download PDFInfo
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- CN203013290U CN203013290U CN 201220606957 CN201220606957U CN203013290U CN 203013290 U CN203013290 U CN 203013290U CN 201220606957 CN201220606957 CN 201220606957 CN 201220606957 U CN201220606957 U CN 201220606957U CN 203013290 U CN203013290 U CN 203013290U
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Abstract
The utility model relates to a 400Hz parallel-connected balance-structured cable for ships. A steel-wire reinforcing member is arranged in the center of a neutral wire conductor, and a neutral wire insulating layer is extruded from the neutral wire conductor; six identical phase-line insulating cores which are successively tangent are uniformly distributed in the periphery of a neutral wire insulating core, two centrosymmetric phase-line insulating cores form one parallel-connected phase, a control core group is embedded into a gap between each two adjacent phase-line insulating cores far from the central wire conductor, and each control core group comprises three mutually intertwisted control cores and a copper-wire braided shielding layer covering the periphery of the three control cores; and all the control core groups and the phase-line insulating cores are internally tangent with the same circle and intertwisted with the neutral wire insulating core to form a cable core, wherein the cable core is wrapped in a glass fiber tape, and an inner sheath and an oversheath are extruded from the glass fiber tape. The 400Hz parallel-connected balance-structured cable for ships has functions of both a power cable and a control cable, is large in current-carrying capacity and balanced in structure, and the external diameter and bending radius of the cable are both small.
Description
Technical field
The utility model relates to a kind of composite cable, and particularly a kind of naval vessel is with 400Hz and coupling balanced structure cable.
Background technology
That the electric power system of conventional ship equipment adopts is all 50Hz, is consistent with popular corollary equipment etc., is convenient to lectotype selection.But to the light-duty nimbleization development of maximization, high-power and generating set, the change system of 400Hz is used for the large ship equipment gradually at present along with the naval vessel, and requiring has the private cable of 400Hz supporting with it.When the cable of prior art 50Hz was used for the 400Hz system, the resistance of cable can have greatly increased because of the frequency increase, and in use procedure, the circuit voltage drop increases thereby bring, and engineering constraint is realized the expection purpose; If carry out the same current load, adopt the 50Hz cable to need to increase very large cross-sectional area of conductor, cause the increase of cost and expense, and the waste of conductor copper material, and China's a big chunk copper material needs import, does not meet energy-conservation requirement.
Publication number is that the Chinese utility model patent of CN 201946375U discloses a kind of power cable, comprise the earth cable and the restrictive coating outside described earth cable that are positioned at the center, symmetrical high-tension cable, light conduits and control cables between described earth cable and described restrictive coating.With the integrated production of high-tension cable, light conduits, control cables and earth cable, thereby can lay four kinds of functions by single, improve cable laying efficient.High-tension cable is used for large power transmission, and cross-sectional area of conductor is long-pending large, and insulation property require very high, and external diameter is large; Light conduits is used for illuminalive power-supply, and more much smaller than the current-carrying higher than cable, sectional area is little, and external diameter is little; Control cables is used for the signal transmission, and current-carrying is minimum, and sectional area is very little, and external diameter is very little.Three kinds of cable distributions triangular in shape in cable core because external diameter differs greatly, cause the cable core roundness very poor.In order to make the cable core rounding, need to increase the jacket thickness of other two kinds of cables as the benchmark adjustment take the cable of maximum outside diameter in three kinds of cables, cause the cable core integral diameter very large, take up space too large and be unfavorable for bending, the power cable current capacity is poor, can not satisfy the needs of naval vessel 400Hz system.
Publication number is the Chinese utility model patent application of CN102446587A; a kind of many cables composite high-voltage power cable is disclosed; high voltage power cable and building-out cable are wrapped in a cable by oversheath, protective layer, inner sheath, form many cables composite high-voltage power cable.Building-out cable can be any one or a few cable of optical cable, radio frequency cable, telecommunication cable, control cables.The current capacity of three power cables of this cable is poor, and bending radius is large.
The utility model content
The purpose of this utility model is, overcomes problems of the prior art, provides a kind of naval vessel with 400Hz and coupling balanced structure cable, has simultaneously the function of power cable and control cable, and outside dimension and bending radius little, power cable current-carrying capacity is large.
For realizing above purpose, a kind of naval vessel provided by the utility model is with 400Hz and coupling balanced structure cable, and the center of neutral conductor is provided with the steel wire stiffener, and the periphery of described neutral conductor extrudes neutral line insulating barrier and consists of neutral insulated wire cores; The periphery of described neutral insulated wire cores is evenly distributed with the identical phase line insulated wire cores of the six roots of sensation, every described phase line insulated wire cores is tangent and tangent with described neutral insulated wire cores respectively successively, and every described phase line insulated wire cores extrudes the phase line insulating layer by phase conductor and consists of; Two described phase line insulated wire cores that are centrosymmetric centered by the axis of described neutral insulated wire cores are a phase parallel with one another, symmetrical A phase insulated wire cores, B phase insulated wire cores and the C insulated wire cores mutually that consists of in parallel of the described phase line insulated wire cores of the six roots of sensation; Gap away from neutral insulated wire cores between two adjacent described phase line insulated wire cores is embedded with respectively control core group, and each described control core group comprises that three mutual stranded control cores and integral coating are at three proof copper-wire braided screens of controlling the core peripheries; Every described control core comprises the control line conductor and is extruded in the control line insulating barrier of control line conductor periphery; Each described control core group and each described phase line insulated wire cores all are inscribed within same circle and are common stranded with described neutral insulated wire cores is cable core, the periphery of described cable core is surrounded with glass fiber tape, the periphery of described glass fiber tape is extruded with inner sheath, and the periphery of described inner sheath is extruded with oversheath.
With respect to prior art, the utility model has been obtained following beneficial effect: this cable has three phase line insulated wire cores and a neutral insulated wire cores, can satisfy three-phase four-wire power supply; The tensile strength of cable can be improved in the center that the steel wire stiffener is placed in neutral conductor, and due to the skin characteristic that becomes of electric current, the current capacity impact of centering line is very little simultaneously; The symmetrical parallel connection in twos of the identical phase line insulated wire cores of the six roots of sensation can significantly be reduced impedance, identical cross-sectional area of conductor is long-pending can improve current capacity, or identical current capacity can reduce the sectional area of conductor, makes cable thinner more soft, reduces the bending radius of cable; A phase, B phase and C be two the thoroughly doing away with the edge cores and have identical resistance, reactance and impedance of self parallel connection mutually, and symmetrical in parallel centered by the cable core axis, can avoid the electric cable heating that the conductor parallel connection of different electric parameters easily causes to cause the heat ageing degradation reaction, cause the electro-insulating rubber polymer performance to descend, produce the risk of potential safety hazard; Every phase line insulated wire cores is tangent and tangent with neutral insulated wire cores respectively successively, and each is controlled core group and each phase line insulated wire cores and all is inscribed within same circle and can makes cable core rounding more, is conducive to dwindle the diameter of cable core, also is conducive to reduce Cable Bending Radius; The non-moisture absorption of glass fiber tape, fire-retardant and insulation, inner sheath and oversheath form double protection.
As preferred version of the present utility model, the zinc-plated annealing copper wire that many diameters are 0.25 ~ 0.3 mm is restrainted in the same way and is twisted into strand, the bundle strand lay ratio of described strand is 10 ~ 12 times, bundle twists the just round compression molding of 98% ~ 99% proportioning of external diameter according to calculating bundle after being twisted into strand, and per share strand is carried out pressing mold process; Strand after pressing mold is processed is twisted into described neutral conductor or described phase conductor again, and multiple strand adopts the direction different from the bundle strand to carry out, and the lay ratio of multiple strand is 13 ~ 15 times.
As preferred version of the present utility model, the described phase line insulated wire cores of the six roots of sensation and the described control core of six roots of sensation group are twisted into described cable core around described neutral insulated wire cores is regular, and stranded lay ratio is 18 ~ 24 times.
Description of drawings
Fig. 1 is the utility model naval vessel with the structural representation of 400Hz and coupling balanced structure cable.
In figure: 1. steel wire stiffener; 2a. neutral conductor; 2b. neutral line insulating barrier; 3.A phase line; 3a. phase conductor; 3b. phase line insulating layer; 4.B phase line; 5.C phase line; 6a. control line conductor; 6b. control line insulating barrier; 6c. proof copper-wire braided screen; 7. glass fiber tape; 8. inner sheath; 9. oversheath.
Embodiment
Embodiment one
As shown in Figure 1, naval vessel of the present utility model is with the manufacture method of 400Hz and coupling balanced structure cable, comprise the following steps successively: the zinc-plated annealing copper wire that (1) is 0.25mm with many diameters is restrainted in the same way and is twisted into strand, zinc-plated annealing copper wire adopts Class 6 kinds of IEC 60228 standards, the bundle strand lay ratio of strand is 10 times, bundle twists the just round compression molding of 98% proportioning of external diameter according to calculating bundle after being twisted into strand, and per share strand is carried out pressing mold process; Above-mentioned strand after pressing mold is processed is centered around steel wire stiffener periphery and is twisted into again neutral conductor, multiple strand adopts the direction different from strand bundle strand to carry out, the lay ratio of multiple strand is 13 times, then extrudes neutral line insulating barrier in the neutral conductor periphery and consists of neutral insulated wire cores; Neutral line insulating barrier is dielectric constant with line insulating layer mutually and is not more than 2.5 ethylene propylene rubber insulated layer, its heat resisting temperature is 105 ℃, neutral line insulating barrier is respectively 2.0mm with the nominal thickness of line insulating layer mutually, minimum thickness is not less than 90% of nominal value, maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.
(2) the above-mentioned strand after the pressing mold processing is twisted into phase conductor again, multiple strand also adopts the direction different from strand bundle strand to carry out, the lay ratio of multiple strand is 13 times, extrude the phase line insulating layer in phase conductor and consist of the phase line insulated wire cores, phase line insulated wire cores one is divided into six equal portions length and two is designated the A phase, two are designated the B phase, two are designated the C phase, the identical insulated wire cores of sign is symmetrically placed in respectively neutral insulated wire cores both sides, and every phase line insulated wire cores is tangent and tangent with neutral insulated wire cores respectively successively.
(3) periphery at the control line conductor extrudes control line insulating barrier formation control core, control the stranded rear integral coating proof copper-wire braided screen of core with three and consist of control core group, distinguish the described control core of setting-in group away from the gap of neutral insulated wire cores between two adjacent described phase line insulated wire cores, each described control core group and each described phase line insulated wire cores all be inscribed within same circle and with the common stranded cable core that is of described neutral insulated wire cores, stranded lay ratio is 18 times.
(4) at the wrapped glass fiber tape of the periphery of cable core, glass fiber tape is take the Boroalumino silicate glasses fiber as base material, contained alkali metal oxide content is 0.5%, adopting the content of fiber size for reinforcemeent is 0.5%, thickness is 0.15mm, fracture strength is greater than 300MPa, and the wrapped rate of putting up is 45%, and oxygen index is 60; Periphery at glass fiber tape adopts double-layer coextrusion evenly to extrude inner sheath and oversheath, inner sheath is high flame retardant polyolefin inner sheath, oversheath is high abrasion polyolefin oversheath, and the thickness that extrudes of inner sheath is 50% of sheath gross thickness, and total nominal thickness of inner sheath and oversheath is 3.1mm.
Embodiment two
As shown in Figure 1, naval vessel of the present utility model is with the manufacture method of 400Hz and coupling balanced structure cable, comprise the following steps successively: the zinc-plated annealing copper wire that (1) is 0.28mm with many diameters is restrainted in the same way and is twisted into strand, zinc-plated annealing copper wire adopts Class 6 kinds of IEC 60228 standards, the bundle strand lay ratio of strand is 11 times, bundle twists the just round compression molding of 99% proportioning of external diameter according to calculating bundle after being twisted into strand, and per share strand is carried out pressing mold process; Above-mentioned strand after pressing mold is processed is centered around steel wire stiffener periphery and is twisted into again neutral conductor, multiple strand adopts the direction different from strand bundle strand to carry out, the lay ratio of multiple strand is 14 times, then extrudes neutral line insulating barrier in the neutral conductor periphery and consists of neutral insulated wire cores; Neutral line insulating barrier is dielectric constant with line insulating layer mutually and is not more than 2.5 ethylene propylene rubber insulated layer, its heat resisting temperature is 105 ℃, neutral line insulating barrier is respectively 2.0mm with the nominal thickness of line insulating layer mutually, minimum thickness is not less than 90% of nominal value, maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.
(2) the above-mentioned strand after the pressing mold processing is twisted into phase conductor again, multiple strand also adopts the direction different from strand bundle strand to carry out, the lay ratio of multiple strand is 14 times, extrude the phase line insulating layer in phase conductor and consist of the phase line insulated wire cores, phase line insulated wire cores one is divided into six equal portions length and two is designated the A phase, two are designated the B phase, two are designated the C phase, the identical insulated wire cores of sign is symmetrically placed in respectively neutral insulated wire cores both sides, and every phase line insulated wire cores is tangent and tangent with neutral insulated wire cores respectively successively.
(3) periphery at the control line conductor extrudes control line insulating barrier formation control core, control the stranded rear integral coating proof copper-wire braided screen of core with three and consist of control core group, distinguish the described control core of setting-in group away from the gap of neutral insulated wire cores between two adjacent described phase line insulated wire cores, each described control core group and each described phase line insulated wire cores all be inscribed within same circle and with the common stranded cable core that is of described neutral insulated wire cores, stranded lay ratio is 21 times.
(4) at the wrapped glass fiber tape of the periphery of cable core, glass fiber tape is take the Boroalumino silicate glasses fiber as base material, contained alkali metal oxide content 0.45%, adopting the content of fiber size for reinforcemeent is 1.2%, thickness is 0.17mm, fracture strength is greater than 300MPa, and the wrapped rate of putting up is 48%, and oxygen index is 62; Periphery at glass fiber tape adopts double-layer coextrusion evenly to extrude inner sheath and oversheath, inner sheath is high flame retardant polyolefin inner sheath, oversheath is high abrasion polyolefin oversheath, and the thickness that extrudes of inner sheath is 55% of sheath gross thickness, and total nominal thickness of inner sheath and oversheath is 3.1mm.
Embodiment three
As shown in Figure 1, naval vessel of the present utility model is with the manufacture method of 400Hz and coupling balanced structure cable, comprise the following steps successively: the zinc-plated annealing copper wire that (1) is 0.3 mm with many diameters is restrainted in the same way and is twisted into strand, zinc-plated annealing copper wire adopts Class 6 kinds of IEC 60228 standards, the bundle strand lay ratio of strand is 12 times, bundle twists the just round compression molding of 99% proportioning of external diameter according to calculating bundle after being twisted into strand, and per share strand is carried out pressing mold process; Above-mentioned strand after pressing mold is processed is centered around steel wire stiffener periphery and is twisted into again neutral conductor, multiple strand adopts the direction different from strand bundle strand to carry out, the lay ratio of multiple strand is 15 times, then extrudes neutral line insulating barrier in the neutral conductor periphery and consists of neutral insulated wire cores; Neutral line insulating barrier is dielectric constant with line insulating layer mutually and is not more than 2.5 ethylene propylene rubber insulated layer, its heat resisting temperature is 105 ℃, neutral line insulating barrier is respectively 2.0mm with the nominal thickness of line insulating layer mutually, minimum thickness is not less than 90% of nominal value, maximum ga(u)ge is not more than 110% of nominal value, and the diameter deviation that arbitrary vertical cross-section records is no more than 10%.
(2) the above-mentioned strand after the pressing mold processing is twisted into phase conductor again, multiple strand also adopts the direction different from strand bundle strand to carry out, the lay ratio of multiple strand is 15 times, extrude the phase line insulating layer in phase conductor and consist of the phase line insulated wire cores, phase line insulated wire cores one is divided into six equal portions length and two is designated the A phase, two are designated the B phase, two are designated the C phase, the identical insulated wire cores of sign is symmetrically placed in respectively neutral insulated wire cores both sides, and every phase line insulated wire cores is tangent and tangent with neutral insulated wire cores respectively successively.
(3) periphery at the control line conductor extrudes control line insulating barrier formation control core, control the stranded rear integral coating proof copper-wire braided screen of core with three and consist of control core group, distinguish the described control core of setting-in group away from the gap of neutral insulated wire cores between two adjacent described phase line insulated wire cores, each described control core group and each described phase line insulated wire cores all be inscribed within same circle and with the common stranded cable core that is of described neutral insulated wire cores, stranded lay ratio is 24 times.
(4) at the wrapped glass fiber tape of the periphery of cable core, glass fiber tape is take the Boroalumino silicate glasses fiber as base material, contained alkali metal oxide content is 0.48%, adopting the content of fiber size for reinforcemeent is 2.0%, thickness is 0.19mm, fracture strength is greater than 300MPa, and the wrapped rate of putting up is 50%, and oxygen index is 65; Periphery at glass fiber tape adopts double-layer coextrusion evenly to extrude inner sheath and oversheath, inner sheath is high flame retardant polyolefin inner sheath, oversheath is high abrasion polyolefin oversheath, and the thickness that extrudes of inner sheath is 60% of sheath gross thickness, and total nominal thickness of inner sheath and oversheath is 3.1mm.
Cable to embodiment one to embodiment three carries out the minimum bending radius test, and test result is as shown in table 1.
Table 1
| ? | Standard-required | Embodiment one | Embodiment two | Embodiment three |
| Minimum bending radius | 6D | 3.2D | 3.4D | 3.6D |
Cable to embodiment one to embodiment three carries out line electricity pressure drop test, and test result is as shown in table 2.
Table 2
| ? | Unit | Theoretical value | Embodiment one | Embodiment two | Embodiment three |
| Voltage drop | mV/A·m | 0.441 | 0.434 | 0.431 | 0.429 |
Cable to embodiment one to embodiment three carries out inductance measurement, and test result is as shown in table 3.
Table 3
| ? | Unit | Theoretical value | Embodiment one | Embodiment two | Embodiment three |
| Inductance | mH/km | 0.119 | 0.115 | 0.113 | 0.110 |
The cable minimum bending radius of embodiment one to embodiment three can reach 3 ~ 4 times of outside diameters of cable, in " selection of State Standard of the People's Republic of China GB/T 13029.1 ~ 13029.3-91 shipboard cable and lay " to the minimum bending radius requirement of 6 times of outside diameters of cable of ordinary construction cable; In addition, in this cable, the line electricity pressure drop of power cable and control cable all is not more than 0.434mV/Am, and inductance is not more than 0.115mH/km, all much smaller than calculated value, can satisfy 400Hz electric power system requirement.
The above is only the better possible embodiments of the utility model, and is non-so limit to scope of patent protection of the present utility model.In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of the utility model requirement.
Claims (3)
1. a naval vessel is with 400Hz and coupling balanced structure cable, and it is characterized in that: the center of neutral conductor is provided with the steel wire stiffener, and the periphery of described neutral conductor extrudes neutral line insulating barrier and consists of neutral insulated wire cores; The periphery of described neutral insulated wire cores is evenly distributed with the identical phase line insulated wire cores of the six roots of sensation, every described phase line insulated wire cores is tangent and tangent with described neutral insulated wire cores respectively successively, and every described phase line insulated wire cores extrudes the phase line insulating layer by phase conductor and consists of; Two described phase line insulated wire cores that are centrosymmetric centered by the axis of described neutral insulated wire cores are a phase parallel with one another, symmetrical A phase insulated wire cores, B phase insulated wire cores and the C insulated wire cores mutually that consists of in parallel of the described phase line insulated wire cores of the six roots of sensation; Gap away from neutral insulated wire cores between two adjacent described phase line insulated wire cores is embedded with respectively control core group, and each described control core group comprises that three mutual stranded control cores and integral coating are at three proof copper-wire braided screens of controlling the core peripheries; Every described control core comprises the control line conductor and is extruded in the control line insulating barrier of control line conductor periphery; Each described control core group and each described phase line insulated wire cores all are inscribed within same circle and are common stranded with described neutral insulated wire cores is cable core, the periphery of described cable core is surrounded with glass fiber tape, the periphery of described glass fiber tape is extruded with inner sheath, and the periphery of described inner sheath is extruded with oversheath.
2. naval vessel according to claim 1 is with 400Hz and coupling balanced structure cable, it is characterized in that, strand after described neutral conductor or described phase conductor are processed by pressing mold respectively twists again and forms, the zinc-plated annealing copper wire that described strand is 0.25 ~ 0.3 mm by many diameters is restrainted in the same way strand and is formed, the bundle strand lay ratio of described strand is 10 ~ 12 times, bundle twists the just round compression molding of 98% ~ 99% proportioning of external diameter according to calculating bundle after being twisted into strand, and per share strand is carried out pressing mold process; Multiple strand adopts the direction different from the bundle strand to carry out, and the lay ratio of multiple strand is 13 ~ 15 times.
3. naval vessel according to claim 1 is with 400Hz and coupling balanced structure cable, it is characterized in that, the described phase line insulated wire cores of the six roots of sensation and the described control core of six roots of sensation group are twisted into described cable core around described neutral insulated wire cores is regular, and stranded lay ratio is 18 ~ 24 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220606957 CN203013290U (en) | 2012-11-16 | 2012-11-16 | 400Hz parallel-connected balance-structured cable for ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220606957 CN203013290U (en) | 2012-11-16 | 2012-11-16 | 400Hz parallel-connected balance-structured cable for ships |
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| CN203013290U true CN203013290U (en) | 2013-06-19 |
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| CN 201220606957 Withdrawn - After Issue CN203013290U (en) | 2012-11-16 | 2012-11-16 | 400Hz parallel-connected balance-structured cable for ships |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969065A (en) * | 2012-11-16 | 2013-03-13 | 江苏远洋东泽电缆股份有限公司 | 400Hz in-parallel balanced structure cable for ships and manufacture method thereof |
| CN103779010A (en) * | 2014-01-20 | 2014-05-07 | 安徽华茜电缆科技有限公司 | Marine control cable for multi-signal transmission |
| CN107148656A (en) * | 2014-08-11 | 2017-09-08 | 克里斯多佛·史蒂德 | cable |
| CN109477295A (en) * | 2016-05-09 | 2019-03-15 | 奥地利拖飞宝缆绳有限公司 | steel cable |
| TWI752712B (en) * | 2020-11-04 | 2022-01-11 | 力生機械有限公司 | High frequency transmission cable with interactive grows and transmission cable sets thereof |
| WO2023078840A1 (en) * | 2021-11-03 | 2023-05-11 | Aker Solutions As | An offshore high-voltage electric power transmission |
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2012
- 2012-11-16 CN CN 201220606957 patent/CN203013290U/en not_active Withdrawn - After Issue
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969065A (en) * | 2012-11-16 | 2013-03-13 | 江苏远洋东泽电缆股份有限公司 | 400Hz in-parallel balanced structure cable for ships and manufacture method thereof |
| CN102969065B (en) * | 2012-11-16 | 2014-12-10 | 江苏远洋东泽电缆股份有限公司 | 400Hz in-parallel balanced structure cable for ships and manufacture method thereof |
| CN103779010A (en) * | 2014-01-20 | 2014-05-07 | 安徽华茜电缆科技有限公司 | Marine control cable for multi-signal transmission |
| CN103779010B (en) * | 2014-01-20 | 2016-08-24 | 安徽华茜电缆科技有限公司 | A kind of multi signal transmits control cable peculiar to vessel |
| CN107148656A (en) * | 2014-08-11 | 2017-09-08 | 克里斯多佛·史蒂德 | cable |
| CN107148656B (en) * | 2014-08-11 | 2019-10-01 | 克里斯多佛·史蒂德 | Cable with a protective layer |
| CN109477295A (en) * | 2016-05-09 | 2019-03-15 | 奥地利拖飞宝缆绳有限公司 | steel cable |
| CN109477295B (en) * | 2016-05-09 | 2022-03-29 | 奥地利拖飞宝缆绳有限公司 | Steel cable |
| TWI752712B (en) * | 2020-11-04 | 2022-01-11 | 力生機械有限公司 | High frequency transmission cable with interactive grows and transmission cable sets thereof |
| WO2023078840A1 (en) * | 2021-11-03 | 2023-05-11 | Aker Solutions As | An offshore high-voltage electric power transmission |
| GB2626285A (en) * | 2021-11-03 | 2024-07-17 | Aker Solutions Subsea As | An offshore high-voltage electric power transmission |
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