CN112260209A - Cross-linked cable welding type molding straight-through joint and manufacturing process thereof - Google Patents
Cross-linked cable welding type molding straight-through joint and manufacturing process thereof Download PDFInfo
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- CN112260209A CN112260209A CN202011181044.0A CN202011181044A CN112260209A CN 112260209 A CN112260209 A CN 112260209A CN 202011181044 A CN202011181044 A CN 202011181044A CN 112260209 A CN112260209 A CN 112260209A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/184—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress
- H02G15/188—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress connected to a cable shield only
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
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Abstract
The utility model provides a cross-linked cable butt fusion formula molding straight joint, includes two cables, connects through hot melt portion between the cable core of two cables, hot melt portion shielding layer, hot melt portion insulating layer and hot melt portion semi-conducting layer have set gradually from inside to outside the hot melt portion, hot melt portion shielding layer wraps up hot melt portion and the exposed part of two cable cores completely, and the cable core shielding layer of two cables passes through hot melt portion shielding layer and links to each other, hot melt portion insulating layer wraps up hot melt portion shielding layer completely, and the cable core insulating layer of two cables passes through hot melt portion insulating layer and links to each other, hot melt portion semi-conducting layer wraps up hot melt portion insulating layer completely. The invention also discloses a manufacturing process of the straight-through joint. The finished connector is completely consistent with the original cable structure and is integrated, the operation accidents caused by different materials, movable interfaces and other reasons between the traditional connector and the cable are eliminated, the electrical reliability is greatly improved, and the defect that the traditional connector has more accidents is well overcome.
Description
Technical Field
The invention relates to a cross-linked cable welding type molding straight-through joint.
Background
The cross-linked cable is a short name of cross-linked polyethylene insulated cable, and is suitable for power frequency alternating current lines with voltage of 500KV and below. At present, the majority of high-voltage cables in China adopt crosslinked polyethylene insulated cables. However, due to the limitation of production and transportation conditions, the length of a single crosslinked cable is limited to a certain extent, and the use requirement in the circuit laying process cannot be met. It is often necessary to connect a plurality of crosslinked cables end to end during the laying process.
At present, various problems often exist in the existing cable joint, the electric performance of a common cable cannot be achieved generally, the cable joint becomes a weak point in a power grid, various accidents often occur, and inconvenience is brought.
Disclosure of Invention
The invention aims to provide a cross-linked cable welding type molding straight-through joint, which can enable the electrical performance of the joint to be consistent with that of a common cable and avoid accidents.
The technical scheme of the invention is as follows: the utility model provides a cross-linked cable butt fusion formula molding straight joint, includes two cables of treating the connection, the cable includes cable core, cable core shielding layer, cable core insulating layer, cable semi-conductive layer, copper shield layer, inner sheath, armor and the oversheath that from interior to exterior set gradually, is connected through hot melt portion between two cable cores, hot melt portion shielding layer, hot melt portion insulating layer and hot melt portion semi-conductive layer have set gradually outward from interior to exterior in hot melt portion, hot melt portion shielding layer wraps up hot melt portion and the exposed part of two cable cores completely, and the cable core shielding layer of two cables passes through hot melt portion shielding layer and links to each other, hot melt portion insulating layer wraps up hot melt portion shielding layer completely, and the cable core insulating layer of two cables passes through hot melt portion insulating layer and links to each other, hot melt portion semi-conductive layer wraps up hot melt portion.
Further, the outer cladding of hot melt portion semi-conductive layer has the copper net cover, and the copper shield layer of two cables passes through the copper net cover and links to each other, still even there is first earth connection between copper net cover and the copper shield layer.
Further, the copper shielding layer is sleeved with a first constant force spring, and the copper mesh sleeve is pressed on the copper shielding layer through the first constant force spring.
Furthermore, the copper mesh is further coated with a waterproof adhesive tape layer, and the inner sheaths of the two cables are connected through the waterproof adhesive tape layer.
Further, the outer still cladding of waterproof sticky tape has the tinned copper braid, and the armor of two cables links to each other through the tinned copper braid, the outer still cladding of tinned copper braid has the inoxidizing coating, the inoxidizing coating adopts waterproof sticky tape and armor area to wind the package shaping, and the oversheath of two cables passes through the inoxidizing coating and links to each other.
Furthermore, a second grounding wire is connected between armor layers of the two cables, a second constant force spring is arranged on the armor layers, and the second grounding wire is pressed on the armor layers through the second constant force spring.
Furthermore, the diameter of the hot melting part is the same as that of the cable core, and the resistance of the hot melting part is consistent with that of the cable core.
Furthermore, the connection mode of the hot-melting part shielding layer and the cable core shielding layer is fusion welding, and the connection mode of the hot-melting part insulating layer and the cable core insulating layer is fusion welding.
A manufacturing process of a welding type molding straight-through joint based on a cross-linked cable comprises the following steps:
(1) stripping and cutting the cable:
a, straightening and straightening two cables, and stripping and cutting the outer sheaths of the cables;
b, respectively scrubbing the end parts of the rest outer sheaths of the two cables;
c, reserving a steel armor layer with the thickness of not less than 10mm from the fracture of the outer sheath, fixing the steel armor layer by using a second constant force spring, and cutting the rest steel armor layer;
d, reserving an inner sheath with the length of not less than 30mm from the fracture of the steel armor layer, and stripping the rest of the inner sheath and the filler;
(2) cable pretreatment:
a, stripping a copper shielding layer with the thickness of no less than 200mm downwards from a cable core fracture, and stripping a cable semi-conductive layer with the thickness of no less than 150mm downwards from the cable core fracture;
b, stripping the cable core insulating layer of which the length is not less than 70mm downwards from the cable core fracture, and stripping the cable core shielding layer downwards from the cable core fracture, wherein the length of the stripped cable core shielding layer is at least 10mm smaller than that of the stripped cable core insulating layer;
(3) fusion spliced cable
A, oppositely placing two cable cores, and welding on site in a heat release welding or silver soldering connection mode;
b, polishing the welding part after welding to ensure that the surface of the welding part is smooth and has no sharp-angled burrs and the diameter of the welding part is the same as that of the cable core;
c, cutting a 45-degree chamfer at the fracture of the cable core insulating layer, and cleaning;
(4) restoring insulation and shielding of cable core
Winding 2-3 layers of cable cores and welding parts by using a semi-conductive vulcanized belt, wherein the lapping length of the semi-conductive vulcanized belt and the cable core shielding layers of the two cables is not less than 3 mm;
b, using an insulating layer material tape to wrap the semi-conductive vulcanized tape and the cable core shielding layer, wherein the overlapping length of the insulating layer material tape and the cable core insulating layers of the two cables is not less than 20 mm;
heating the insulating layer material belt, winding 2-3 layers of insulating layers of the hot melting part by using a semi-conductive vulcanizing belt after heating is finished, wherein the overlapping length of the semi-conductive vulcanizing belt and the cable semi-conductive layers of the two cables is not less than 15 mm;
d, wrapping the lap joint of the semi-conductive vulcanized belt and the semi-conductive layer of the cable by using a waterproof composite belt for waterproof treatment;
e, lapping the copper shielding layers at two ends by using a copper net, wherein the lapping length is not less than 30mm, connecting the copper net and the copper shielding layers by using a first grounding wire, and fixing the first grounding wire and the copper net by using a first constant force spring;
(5) recovery cable structure
A, wrapping a copper mesh layer by using a waterproof composite belt;
b, connecting armor layers of the two cables by using a second grounding wire (if steel armor has antirust paint, connecting the steel armor of the second grounding wire after removing the antirust paint), and fixing the second grounding wire and the armor layers by using a second constant force spring;
and C, wrapping the whole joint part by using a tinned copper woven belt, and wrapping a protective layer outside the tinned copper woven belt.
Compared with the prior art, the invention has the following advantages: the invention has compact structure, does not influence the original performance, and the finished connector and the original cable have completely consistent structures and are completely integrated, thereby eliminating the operation accidents between the traditional connector and the cable caused by different materials, movable interfaces and other reasons, greatly improving the electrical reliability, and well solving the defect of multiple accidents of the traditional connector.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of region A in FIG. 1;
FIG. 3 is a schematic view of region B in FIG. 1;
in the figure: 1-a cable core, 2-a cable core shielding layer, 3-a cable core insulating layer, 4-a cable semiconductor layer, 5-a copper shielding layer, 6-an inner sheath, 7-an armor layer, 8-an outer sheath, 9-a hot melting part, 10-a hot melting part shielding layer, 11-a hot melting part insulating layer, 12-a hot melting part semi-conducting layer, 13-a copper mesh sleeve, 14-a first grounding wire, 15-a first constant force spring, 16-a waterproof adhesive tape layer, 17-a second grounding wire, 18-a second constant force spring, 19-a tin-plated copper braided belt layer and 20-a protective layer.
Detailed Description
In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.
Refer to fig. 1-3.
In a preferred embodiment of the present invention: the utility model provides a cross-linked cable butt fusion formula molding straight joint, includes two cables of treating the connection, the cable includes cable core, cable core shielding layer, cable core insulating layer, cable semi-conductive layer, copper shield layer, inner sheath, armor and the oversheath that from interior to exterior set gradually, is connected through hot melt portion between two cable cores, hot melt portion shielding layer, hot melt portion insulating layer and hot melt portion semi-conductive layer have set gradually outward from interior to exterior in hot melt portion, hot melt portion shielding layer wraps up hot melt portion and the exposed part of two cable cores completely, and the cable core shielding layer of two cables passes through hot melt portion shielding layer and links to each other, hot melt portion insulating layer wraps up hot melt portion shielding layer completely, and the cable core insulating layer of two cables passes through hot melt portion insulating layer and links to each other, hot melt portion semi-conductive layer wraps up hot melt portion.
The cable cores of the two cables are welded on site in modes of heat release welding or silver brazing welding and the like, the resistance of a hot melting part obtained after welding is consistent with that of the cable core, the diameter of the hot melting part is also consistent, the current-carrying capacity of the cable cannot be influenced, the material of the hot melting part shielding layer is the same as that of the cable core shielding layer, the material of the hot melting part insulating layer is the same as that of the cable core insulating layer, the hot melting part shielding layer and the hot melting part insulating layer are completely combined together after hot melting, and no gap is left to cause insulation performance mutation.
The hot-melting part shielding layer is obtained by fusing 2-3 layers of semi-conductive vulcanized belts wrapped around the cable core and the welding part.
The hot-melting part insulating layer is obtained by fusing the semi-conductive vulcanized belt and the cable core shielding layer which are wrapped by the insulating layer material belt in a certain thickness.
The hot-melting part semi-conductive layer is obtained by winding 2-3 layers of the hot-melting part insulating layer through a semi-conductive vulcanizing belt and melting, and two ends of the hot-melting part semi-conductive layer are lapped with the semi-conductive layer of the cable.
In this embodiment, the semi-conductive layer of hot melting portion still cladding has the copper net cover outward, and the copper shield layer of two cables passes through the copper net cover and links to each other, the copper net cover is the same with the copper shield layer effect of cable, plays short circuit current passageway and shielding electric field's effect, still even there is first earth connection between copper net cover and the copper shield layer, strengthens the electricity between copper net cover and the copper shield layer through first earth connection and is connected for the copper net cover forms a whole with the copper shield layer, avoids the shielding layer to become invalid suddenly.
In this embodiment, the cover is equipped with first constant force spring on the copper shield layer, because the copper shield layer usually is copper strips or copper wire winding formation, scatters easily after one end is cut, leads to the shielding effect at scattering position to reduce, makes the broken end position on copper shield layer still receive certain effort through setting up first constant force spring, avoids the copper shield layer to scatter the inefficacy, the copper mesh cover is pressed on the copper shield layer through first constant force spring for seamless connection between copper mesh cover and the copper shield layer avoids appearing the space.
In this embodiment, the copper mesh cover still coats outward and has the waterproof sticky tape layer, and the inner sheath of two cables passes through the waterproof sticky tape layer and links to each other, the effect of waterproof sticky tape layer and inner sheath is unanimous, plays anticorrosive and sealed effect.
In this embodiment, the waterproof sticky tape layer still cladding has the tinned copper to weave the belting outward, the tinned copper weaves the belting and is the same with the armor effect, increases structural strength, avoids the cable to damage under the exogenic action, and the armor of two cables links to each other through the tinned copper weaves the belting, the tinned copper weaves the belting outward and still cladding has the inoxidizing coating outward, the inoxidizing coating adopts waterproof sticky tape and armor area around the package shaping, and the oversheath of two cables passes through the inoxidizing coating and links to each other.
In this embodiment, be connected with the second earth connection between the armor of two cables for the electricity is connected between the armor, avoids long-term the use to accumulate a large amount of charges and finally leads to shielding insulation failure, takes place to puncture the accident, be provided with the second constant force spring on the armor to avoid the armor to scatter at the fracture department, cause the armor to damage the inefficacy, the second earth connection passes through the second constant force spring and presses on the armor, with the reliable connection of guaranteeing between second earth connection and the armor.
In this embodiment, the diameter of the hot melting part is the same as that of the cable core, and the resistance of the hot melting part is consistent with that of the cable core.
In this embodiment, the connection mode of hot melt portion shielding layer and cable core shielding layer is the butt fusion, the connection mode of hot melt portion insulating layer and cable core insulating layer is the butt fusion, forms an organic whole after the butt fusion, and electric property is unanimous.
A manufacturing process of a welding type molding straight-through joint based on a cross-linked cable comprises the following steps:
(1) stripping and cutting the cable:
a, straightening and straightening two cables, stripping and cutting the outer sheaths of the cables, wherein the long end is 900mm, and the short end is 700 mm;
b, respectively scrubbing the end parts of the rest outer sheaths of the two cables, wherein the scrubbing length is 70mm, and cleaning dust and dirt;
c, reserving a steel armor layer of 30mm from the fracture of the outer sheath, fixing the steel armor layer by using a second constant force spring, and cutting the rest steel armor layer;
d, reserving a 100mm inner sheath from the fracture of the steel armor layer, and stripping the rest inner sheath and fillers;
(2) cable pretreatment:
a, stripping a copper shielding layer of 250mm downwards from a cable core fracture, taking care not to damage a cable semi-conductive layer, and stripping a cable semi-conductive layer of 190mm downwards from the cable core fracture;
b, stripping a 90mm cable core insulating layer downwards from the cable core fracture, stripping a cable core shielding layer downwards from the cable core fracture to expose the cable core, wherein the length of the stripped cable core shielding layer is 10mm smaller than that of the stripped cable core insulating layer, and the cable core is prevented from being scattered when the insulating layer is stripped;
(3) fusion spliced cable
A, oppositely placing two cable cores, and welding the two cable cores on site in a heat release welding or silver soldering mode, wherein the cables at two ends must be ensured to be horizontal so as to avoid welding failure;
b, polishing the welding part after welding to ensure that the surface of the welding part is smooth and has no sharp-angled burrs and the diameter of the welding part is the same as that of the cable core;
c, cutting a 45-degree chamfer at the fracture of the cable core insulating layer, and cleaning;
(4) restoring insulation and shielding of cable core
Winding 2-3 layers of cable cores and welding parts by using a semi-conductive vulcanized belt, wherein the lapping length of the semi-conductive vulcanized belt and the cable core shielding layers of the two cables is 5 mm;
b, using an insulating layer material tape to wrap the semi-conductive vulcanized tape and the cable core shielding layer for a certain thickness, wherein the lapping length of the insulating layer material tape and the cable core insulating layers of the two cables is 30 mm;
heating the insulating layer material belt, winding 2-3 layers of insulating layers of the hot melting part by using a semi-conductive vulcanizing belt after heating is finished, wherein the lap joint length of the semi-conductive vulcanizing belt and the cable semi-conductive layers of the two cables is 20 mm;
d, wrapping the lap joint of the semi-conductive vulcanized belt and the semi-conductive layer of the cable by using a waterproof composite belt for waterproof treatment;
e, lapping the copper shielding layers at two ends by using a copper mesh, wherein the lapping length is 40mm, connecting the copper mesh and the copper shielding layers by using a first grounding wire, and fixing the first grounding wire and the copper mesh by using a first constant force spring;
(5) recovery cable structure
A, wrapping a copper mesh layer by using a waterproof composite belt;
b, connecting armor layers of the two cables by using a second grounding wire (if steel armor has antirust paint, connecting the steel armor of the second grounding wire after removing the antirust paint), and fixing the second grounding wire and the armor layers by using a second constant force spring;
and C, wrapping the whole joint part by using a tinned copper woven belt, and wrapping a protective layer outside the tinned copper woven belt.
It will be apparent to those skilled in the art that the cross-linked cable fusion molded through connector and the fabrication process thereof according to the teachings of the present invention may be designed without inventive step, and all equivalent changes, modifications, substitutions and alterations without departing from the spirit and scope of the present invention are intended to be covered by the present invention.
Claims (9)
1. A cross-linked cable welding type molding straight-through joint comprises two cables to be connected, wherein each cable comprises a cable core, a cable core shielding layer, a cable core insulating layer, a cable semi-conducting layer, a copper shielding layer, an inner sheath, an armor layer and an outer sheath which are sequentially arranged from inside to outside, each layer of a fracture of each cable is in a step shape, it is characterized in that the two cable cores are connected through a hot melting part, a hot melting part shielding layer, a hot melting part insulating layer and a hot melting part semi-conducting layer are sequentially arranged outside the hot melting part from inside to outside, the hot-melting part shielding layer completely wraps the hot-melting part and the exposed parts of the two cable cores, the cable core shielding layers of the two cables are connected through the hot-melting part shielding layer, the hot melting part insulating layer wraps the hot melting part shielding layer completely, the cable core insulating layers of the two cables are connected through the hot melting part insulating layer, and the hot melting part semi-conducting layer wraps the hot melting part insulating layer completely.
2. The welded type molded straight-through joint of the cross-linked cable as claimed in claim 1, wherein the semi-conductive layer of the hot melting part is further coated with a copper mesh sleeve, the copper shielding layers of the two cables are connected through the copper mesh sleeve, and a first grounding wire is further connected between the copper mesh sleeve and the copper shielding layer.
3. A cross-linked cable fusion molded straight through joint as claimed in claim 2 wherein said copper shield is sleeved with a first constant force spring, said copper mesh being pressed against said copper shield by said first constant force spring.
4. The fusion molded straight-through joint for crosslinked cables as claimed in claim 2, wherein the copper mesh is covered with a waterproof tape layer, and the inner sheaths of the two cables are connected by the waterproof tape layer.
5. The through joint as claimed in claim 4, wherein the waterproof tape layer is further covered with a tinned copper braid layer, the armor layers of the two cables are connected with each other through the tinned copper braid layer, the tinned copper braid layer is further covered with a protective layer, the protective layer is formed by wrapping the waterproof tape layer and the armor layers with each other, and the outer sheaths of the two cables are connected with each other through the protective layer.
6. A welded molded straight-through joint according to claim 1, wherein a second grounding wire is connected between the armor layers of the two cables, and a second constant force spring is arranged on the armor layers, and the second grounding wire is pressed on the armor layers through the second constant force spring.
7. The fusion molded straight through joint for crosslinked cables of claim 1, wherein said hot melt portion has the same diameter as the cable core and has a resistance corresponding to that of the cable core.
8. The fusion-spliced molded straight-through joint of claim 1, wherein the hot-melt shielding layer is fused to the cable core shielding layer, and the hot-melt insulating layer is fused to the cable core insulating layer.
9. A process for the manufacture of a cross-linked cable fusion moulded through-connection according to any one of claims 1 to 8, characterised by the following steps:
(1) stripping and cutting the cable:
a, straightening and straightening two cables, and stripping and cutting the outer sheaths of the cables;
b, respectively scrubbing the end parts of the rest outer sheaths of the two cables;
c, reserving a steel armor layer with the thickness of not less than 10mm from the fracture of the outer sheath, fixing the steel armor layer by using a second constant force spring, and cutting the rest steel armor layer;
d, reserving an inner sheath with the length of not less than 30mm from the fracture of the steel armor layer, and stripping the rest of the inner sheath and the filler;
(2) cable pretreatment:
a, stripping a copper shielding layer with the thickness of no less than 200mm downwards from a cable core fracture, and stripping a cable semi-conductive layer with the thickness of no less than 150mm downwards from the cable core fracture;
b, stripping the cable core insulating layer of which the length is not less than 70mm downwards from the cable core fracture, and stripping the cable core shielding layer downwards from the cable core fracture, wherein the length of the stripped cable core shielding layer is at least 10mm smaller than that of the stripped cable core insulating layer;
(3) fusion spliced cable
A, oppositely placing two cable cores, and welding on site in a heat release welding or silver soldering connection mode;
b, polishing the welding part after welding to ensure that the surface of the welding part is smooth and has no sharp-angled burrs and the diameter of the welding part is the same as that of the cable core;
c, cutting a 45-degree chamfer at the fracture of the cable core insulating layer, and cleaning;
(4) restoring insulation and shielding of cable core
Winding 2-3 layers of cable cores and welding parts by using a semi-conductive vulcanized belt, wherein the lapping length of the semi-conductive vulcanized belt and the cable core shielding layers of the two cables is not less than 3 mm;
b, using an insulating layer material tape to wrap the semi-conductive vulcanized tape and the cable core shielding layer, wherein the overlapping length of the insulating layer material tape and the cable core insulating layers of the two cables is not less than 20 mm;
heating the insulating layer material belt, winding 2-3 layers of insulating layers of the hot melting part by using a semi-conductive vulcanizing belt after heating is finished, wherein the overlapping length of the semi-conductive vulcanizing belt and the cable semi-conductive layers of the two cables is not less than 15 mm;
d, wrapping the lap joint of the semi-conductive vulcanized belt and the semi-conductive layer of the cable by using a waterproof composite belt for waterproof treatment;
e, lapping the copper shielding layers at two ends by using a copper net, wherein the lapping length is not less than 30mm, connecting the copper net and the copper shielding layers by using a first grounding wire, and fixing the first grounding wire and the copper net by using a first constant force spring;
(5) recovery cable structure
A, wrapping a copper mesh layer by using a waterproof composite belt;
b, connecting armor layers of the two cables by using a second grounding wire (if steel armor has antirust paint, connecting the steel armor of the second grounding wire after removing the antirust paint), and fixing the second grounding wire and the armor layers by using a second constant force spring;
and C, wrapping the whole joint part by using a tinned copper woven belt, and wrapping a protective layer outside the tinned copper woven belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011181044.0A CN112260209A (en) | 2020-10-29 | 2020-10-29 | Cross-linked cable welding type molding straight-through joint and manufacturing process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011181044.0A CN112260209A (en) | 2020-10-29 | 2020-10-29 | Cross-linked cable welding type molding straight-through joint and manufacturing process thereof |
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| CN112260209A true CN112260209A (en) | 2021-01-22 |
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| CN202011181044.0A Pending CN112260209A (en) | 2020-10-29 | 2020-10-29 | Cross-linked cable welding type molding straight-through joint and manufacturing process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118061438A (en) * | 2024-04-17 | 2024-05-24 | 福建泉源电气设备有限公司 | Cable joint forming device and forming process thereof |
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2020
- 2020-10-29 CN CN202011181044.0A patent/CN112260209A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118061438A (en) * | 2024-04-17 | 2024-05-24 | 福建泉源电气设备有限公司 | Cable joint forming device and forming process thereof |
| CN118061438B (en) * | 2024-04-17 | 2024-06-25 | 福建泉源电气设备有限公司 | Cable joint forming device and forming process thereof |
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