CN210780046U - 35kV combined type cable termination - Google Patents
35kV combined type cable termination Download PDFInfo
- Publication number
- CN210780046U CN210780046U CN201921287821.2U CN201921287821U CN210780046U CN 210780046 U CN210780046 U CN 210780046U CN 201921287821 U CN201921287821 U CN 201921287821U CN 210780046 U CN210780046 U CN 210780046U
- Authority
- CN
- China
- Prior art keywords
- composite
- conductor bar
- cable
- hardware fitting
- sealing ring
- 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.)
- Active
Links
Images
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model discloses a 35kV combined type cable terminal, including conductor bar 1 and composite sleeve 4, conductor bar 1 is connected with composite sleeve 4 through upper portion gold utensil 31 bottom of conductor bar is provided with crimping terminal 11 to with cable junction, composite sleeve 4's top outside is provided with connecting seat 41, with 3 fixed connection of upper portion gold utensil, composite sleeve 4's bottom outside is provided with down connecting seat 42, with mounting flange 6 fixed connection, be provided with tail pipe 63 on mounting flange 6 for the cable stretches into composite sleeve 4 inboard through tail pipe 63, is connected with 1 crimping terminal 11 of conductor bar, and the cable outer wall that is located mounting flange 6 upper end still overlaps there is stress awl 5. The utility model has the advantages of better ageing resistance, pollution resistance, good sealing performance, quick installation and no pollution.
Description
Technical Field
The utility model relates to an electric power field, concretely relates to cable accessories of well low voltage power transmission and transformation system especially relates to a 35kV combined type cable terminal.
Background
The 35kV composite cable terminal is applied to a high-voltage weak-current power transmission and transformation system fixedly laid by a national power grid and is mainly used for an electrostatic current dust removal system of enterprises such as steel plants and cement plants. At present, a plurality of manufacturers of the cable terminals in the form are provided in China, the used terminals are terminals in common forms, such as cold-shrink terminals or prefabricated terminals, the requirements of the crosslinked cable in a severe dirty special environment cannot be well met, and the following defects generally exist:
(1) the dust resistance and the pollution resistance are poor;
(2) the mechanical strength and the corrosion resistance are poor;
(3) poor temperature resistance.
Because the cable terminal runs in a dirty environment for a long time, the cable terminal has frequent faults, the power failure frequency of a power grid is increased, and the maintenance cost is increased.
Accordingly, there is a need to develop and design a cable termination suitable for the above environment.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above problems, the present inventors have conducted intensive studies to design a 35kV composite cable terminal,
comprising a conductor bar 1 and a composite bushing 4, wherein,
the conductor bar 1 is connected with the composite sleeve 4 through an upper hardware fitting 3, and a crimping terminal 11 is arranged at the bottom of the conductor bar 1 to be connected with a cable;
an upper connecting seat 41 is arranged outside the top end of the composite sleeve 4 to be fixedly connected with the upper hardware fitting 3, and a lower connecting seat 42 is arranged outside the bottom end of the composite sleeve 4 to be fixedly connected with the mounting flange 6;
the mounting flange 6 is provided with a tail pipe 63, so that the cable extends into the inner side of the composite sleeve 4 through the tail pipe 63 and is connected with the crimping terminal 11 of the conductor bar 1.
The conductor bar 1 is columnar, is arranged in a through hole of the upper hardware fitting 3 in a penetrating way and comprises an upper part and a lower part, wherein the diameter of the upper part of the conductor bar 1 is smaller than that of the through hole of the upper hardware fitting 3, the diameter of the lower part is larger than that of the through hole of the upper hardware fitting 3, so that the conductor bar 1 can partially penetrate through the through hole of the upper hardware fitting 3 and is relatively fixed with the upper hardware fitting 3 through the fastener 2, the upper part of the conductor bar 1 is arranged above the upper hardware fitting 3, the lower part of the conductor bar 1 and the crimping terminal 11 are arranged below the upper hardware fitting,
the upper fitting 3 is provided with an upper fastening member 33, so that the lower surface of the upper fitting 3 is closely attached to the surface of the upper connecting seat 41 of the composite sleeve 4.
And a sealing ring seat hole is also formed in the contact surface of the upper hardware fitting 3 and the upper connecting seat 41, and a sealing ring II32 with a corresponding size is arranged in the seat hole.
The middle part of the composite sleeve 4 is of a tubular structure, the outer wall of the composite sleeve is of an umbrella skirt laminated structure, and the lower connecting seat 42 of the composite sleeve 4 is tightly attached to the upper surface of the mounting flange 6 through the lower fastening piece 61.
The contact surface of the mounting flange 6 and the lower connecting seat 42 is also provided with a sealing ring seat hole, a sealing ring III 62 with corresponding size is placed in the seat hole,
the lower surface of the mounting flange 6 is provided with a tail pipe 63, the tail pipe 63 vertically penetrates through the mounting flange 6, the lower end of the tail pipe 63 is provided with a sealing tape 7, and the sealing tape 7 is wound on the tail pipe 63, a cable and a grounding wire, so that the lower end of the tail pipe 63 is sealed.
The earth connection includes steel band earth connection 81 and copper strips earth connection 82, and steel band earth connection 81, copper strips earth connection 82 are shelled with the cable through last constant force spring 91, lower constant force spring 92 respectively and are cut the department and be connected to draw forth through tail pipe 63 department, thereby accomplish the utility model discloses the cable is suitable for various goods and materials.
Specifically, the stress cone 5 is made of integral silicon rubber die casting parts in the shape of umbrella skirt stacking,
the composite sleeve 4 is an umbrella skirt laminated composite pipe, the length of the composite sleeve is 520mm, and the creep distance of the umbrella skirt is 1260 mm.
The utility model provides a 35kV combined type cable terminal has following beneficial effect:
(1) according to the 35kV composite cable terminal provided by the utility model, the composite pipe is adopted, so that the anti-aging performance and the pollution resistance are better;
(2) according to the 35kV composite cable terminal provided by the utility model, the cable is protected by adopting the upper hardware fitting, the composite sleeve and the mounting flange in a sealing combination manner, the elastic sealing fit is tight, and the overall sealing performance is good;
(3) according to the utility model provides a 35kV combined type cable terminal, do not contain insulating liquid, no seepage risk, no environmental pollution;
(4) according to the utility model provides a 35kV combined type cable terminal, its stress cone is whole silicon rubber mould pressing shrinkage piece, and each part is connected simply, and the installation is quick.
Drawings
Fig. 1 shows a schematic view of the overall structure of a 35kV composite cable terminal according to a preferred embodiment of the present invention;
fig. 2 is a schematic view illustrating a connection position between a composite sleeve and an upper hardware fitting of a 35kV composite cable terminal according to a preferred embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a connection position of a composite sleeve and a mounting flange of a 35kV composite cable terminal according to a preferred embodiment of the present invention.
The reference numbers illustrate:
1-a conductor bar;
11-crimp terminal
2-a fastener;
3-upper hardware fitting;
31-sealing ring I;
32-sealing ring II;
33-upper fastener;
4-composite casing;
41-an upper connecting seat;
42-lower connecting seat;
5-stress cone;
6-mounting a flange;
61-lower fasteners;
62-sealing ring III;
63-tail tube;
7-sealing tape;
81-steel band grounding wire;
82-copper strip grounding;
91-upper constant force spring;
92-lower constant force spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments. The features and advantages of the present invention will become more apparent from the description.
In which, although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
According to the 35kV composite cable terminal provided by the present invention, as shown in fig. 1, the cable terminal comprises a conductor bar 1 and a composite bushing 4, wherein,
the conductor bar 1 is connected with the composite sleeve 4 through an upper hardware fitting 3, and a crimping terminal 11 is arranged at the bottom of the conductor bar 1 to be connected with a cable;
an upper connecting seat 41 is arranged outside the top end of the composite sleeve 4 to be fixedly connected with the upper hardware fitting 3, and a lower connecting seat 42 is arranged outside the bottom end of the composite sleeve 4 to be fixedly connected with the mounting flange 6;
the mounting flange 6 is provided with a tail pipe 63, so that the cable extends into the inner side of the composite sleeve 4 through the tail pipe 63 and is connected with the crimping terminal 11 of the conductor bar 1.
The inventor discovers that the mode corrosion resistance and the mechanical strength of conductor bar and cable lug connection are all relatively poor, the inventor is through sharp research, adopt upper portion gold utensil 3, compound sleeve 4, mounting flange 6 cooperatees and carries out the reinforced connected mode of secondary with being connected of cable to the conductor bar, this connected mode can reach better support conductor bar 1, the mechanical strength of cable and 1 junction of conductor bar has been improved again, and simultaneously, because conductor bar 1 is the metal material with the upper portion gold utensil, the thermal expansion coefficient difference is little, has stronger temperature resistant characteristic.
Specifically, the upper hardware fitting 3 is flat and has a through hole,
the conductor bar 1 is a column, and it wears to establish in the through-hole of upper portion gold utensil 3, including upper portion and lower part, wherein, the upper portion diameter of conductor bar 1 is less than the through-hole diameter of upper portion gold utensil 3, and the lower part diameter is greater than the through-hole diameter of upper portion gold utensil 3 for conductor bar 1 can partially pass the through-hole of upper portion gold utensil 3, and pass through fastener 2 and upper portion gold utensil 3 relatively fixed, makes 1 upper portion of conductor bar in the top of upper portion gold utensil 3, and 1 lower part of conductor bar and crimping terminal 11 are located the below of upper portion gold utensil 3.
Further, the fastening member 2 may be a corresponding structure for realizing a fixed connection effect, such as a corresponding structure for realizing a fixed connection by welding, riveting, bonding, pinning, and the like.
In a preferred embodiment, as shown in the figure, the fastening member 2 is a nut, the upper portion of the conductor bar 1 has an external thread, so that the fastening member 2 can fix the conductor bar 1 on the upper hardware fitting 3, and more preferably, a gasket is arranged below the nut, so that after the nut is pre-tightened, the nut and the upper hardware fitting 3 are tightly attached to each other, a dustproof effect is achieved, and the nut is not easy to loosen.
In a preferred embodiment, the upper hardware 3 is in a truncated cone shape, and the through hole is coaxial with the truncated cone, so that the conductor bar 1 is located at the center of the device.
Further, a sealing ring seat hole is further formed in the edge of the inner wall of the through hole of the upper hardware fitting 3, and a sealing ring I31 with the size matched with that of the seat hole is arranged in the seat hole, so that the contact position of the upper hardware fitting 3 and the conductor bar 1 is sealed.
The upper fitting 3 is provided with an upper fastening member 33, so that the lower surface of the upper fitting 3 is closely attached to the surface of the upper connecting seat 41 of the composite sleeve 4.
Wherein, through the above-mentioned setting for have certain dust proofness between upper portion gold utensil 3 and the compound sleeve pipe 4.
The upper fastening member 33 is any structure that can achieve a fastening connection, and preferably a bolt fixing structure.
In a preferred embodiment, as shown in the figure, the upper fastening member 33 is a bolt, the upper hardware fitting 3 has counterbores uniformly distributed in the circumferential direction, and through holes are provided on the upper connecting seat 41 of the composite sleeve 4 at positions corresponding to the counterbores, so that the upper hardware fitting 3 and the upper connecting seat 41 can be fastened through the bolt connection.
The contact surface of the upper hardware fitting 3 and the upper connecting seat 41 is also provided with a sealing ring seat hole, a sealing ring II32 with a corresponding size is arranged in the seat hole, the composite sleeve 4 is further sealed, and the dust resistance of the terminal is improved.
The middle part of the composite sleeve 4 is of a tubular structure, the outer wall of the pipe is of an umbrella skirt laminated structure, and as shown in fig. 2, the outer edge of the upper hardware fitting 3 protrudes out of the outer edge of the umbrella skirt on the outer wall of the pipe, so that the upper hardware fitting 3 can protect the umbrella skirt on the outer side of the composite sleeve 4 to a certain extent.
The inventor finds that the composite electromagnetic tube has better ageing resistance and better pollution resistance, and is more suitable for the special environment with serious pollution.
The utility model discloses well compound sleeve pipe 4 middle part is compound electromagnetism pipe, preferably 400 ~ 600mm of length, and the full skirt creep distance is greater than 1000 mm's full skirt range upon range of formula compound electromagnetism pipe.
More preferably, the umbrella skirt laminated composite electromagnetic tube has the length of 400-600 mm and the umbrella skirt creepage distance of more than 1255 mm.
In a preferred embodiment, the composite sleeve 4 is an umbrella skirt laminated electromagnetic tube with the middle part of 520mm in length and the umbrella skirt creeping distance of 1260mm, so as to meet the requirement of using in a class IV dirty area.
The lower connecting seat 42 of the composite sleeve 4 is tightly attached to the upper surface of the mounting flange 6 through the lower fastening piece 61, so that certain dust resistance exists between the composite sleeve 4 and the mounting flange 6, and the lower fastening piece 61 can be any structure capable of realizing fixed connection, preferably a bolt fixing structure.
In a preferred embodiment, as shown in the drawings, threaded holes are uniformly distributed on the circumferential direction of the upper surface of the mounting flange 6, and through holes are formed in the lower connecting seat 42 at positions corresponding to the threaded holes, so that the lower connecting seat 42 and the mounting flange 6 can be fastened through bolt connection.
The contact surface of the mounting flange 6 and the lower connecting seat 42 is also provided with a sealing ring seat hole, and a sealing ring III 62 with a corresponding size is placed in the seat hole, so that the composite sleeve 4 and the mounting flange 6 are sealed, and the dust resistance of the system is enhanced.
Wherein the sealing ring I31, the sealing ring II32 and the sealing ring III 62 are all prefabricated silicon rubber U-shaped sealing rings which are molded by mould pressing and vulcanization, a groove corresponding to the U shape of the sealing ring is arranged in a corresponding sealing ring seat hole,
the inventor finds that when the cross-sectional area of the seal ring is too small relative to the cross-sectional area of the seat hole, the sealing function cannot be well performed, and when the cross-sectional area of the seal ring is too large relative to the cross-sectional area of the seat hole, the close fitting between the upper hardware fitting 3 and the upper connecting seat 41 and between the lower connecting seat 42 and the mounting flange is prevented.
In the utility model, the ratio of the cross-sectional area of the sealing ring to the cross-sectional area of the sealing ring seat hole is 1.1-1.5: 1, preferably 1.2-1.3.
The mounting flange 6 is flat, and as shown in fig. 3, the outer edge of the mounting flange 6 protrudes out of the outer edge of the umbrella skirt of the composite sleeve 4, so that the mounting flange 6 can protect the umbrella skirt at the outer side of the composite sleeve 4 to a certain extent.
The lower surface of the mounting flange 6 is provided with tail pipes 63, and the tail pipes 63 vertically penetrate through the mounting flange 6, so that the stripped and cut cable can penetrate through the mounting flange 6 and enter the inner side of the composite sleeve 4.
In a preferred embodiment, the tail 63 is coaxial with the stub 1 so that there is no bending of the cable within the composite sleeve 4.
The outer wall of the cable at the upper end of the mounting flange 6 is also sleeved with a stress cone 5.
The utility model discloses an upper portion gold utensil 3 is fixed in inside compound sleeve pipe 4 with cable and cover stress cone 5 on the cable with mounting flange 6 for stress cone 5 does not have direct contact with compound sleeve pipe 4.
Furthermore, the stress cone 5 is of a structure with an umbrella skirt, so that the insulating property of the stress cone 5 is improved, insulation between the stress cone 5 and the composite sleeve 4 is not required, the device is of a dry structure, insulation liquid filling is not required, potential safety hazards caused by leakage of the insulation liquid are avoided, and the pollution risk to the environment is reduced.
In a preferred embodiment according to the present invention, the stress cone 5 is formed by molding and vulcanizing silicone rubber compound satisfying tensile strength of 7Mpa or more, elongation of 60% or more, permanent deformation of 30% or less, and shore a hardness of 40 or less, so as to ensure mechanical properties and service life of the stress cone.
The cable is also provided with grounding wires comprising a steel strip grounding wire 81 and a copper strip grounding wire 82, and as shown in the figure, the steel strip grounding wire 81 and the copper strip grounding wire 82 extend into the tail pipe 63 from the lower end thereof, so that the steel strip grounding wire 81 and the copper strip grounding wire 82 are attached to the outer wall of the cable.
Furthermore, the steel strip grounding wire 81 and the copper strip grounding wire 82 are respectively connected with an armor layer and a copper shielding layer of the cable on the inner side of the tail pipe 63.
Wherein, the cable includes outer jacket, armor, interior sheath, copper shield layer, semi-conducting layer, cable insulation layer and the cable core that outside-in set gradually, and the cable core crimping is in on the crimping terminal 11 of conductor bar 1.
Furthermore, the connecting position of the copper strip grounding wire 82 and the copper shielding layer of the cable is fastened through an upper constant force spring 91, the connecting position of the steel strip grounding wire 81 and the copper shielding layer of the cable is fastened through a lower constant force spring 92,
the upper constant force spring 91 is partially clamped at the top end of the tail pipe 63, so that the tail pipe is fixed relative to the tail pipe, and further fixing of the cable position is achieved.
Furthermore, the contact positions of the cable, the steel belt grounding wire 81 and the copper belt grounding wire 82 and the tail pipe 63 are provided with sealing tapes 7,
the sealing tape 7 fixes a steel wire grounding wire 81 and a copper strip grounding wire 82 on the cable, and winds and fixes the cable on the tail pipe 63; and on the other hand, seals the lower end of the tail pipe 63.
Wherein the tail pipe 63 of the mounting flange 6 is fixed with the cable, thus enhancing the mechanical performance of the bottom of the terminal.
The utility model discloses a conductor bar 1, upper portion gold utensil 3, mounting flange 6 and sealing strip 7 are tentatively sealed with 4 inner spaces of composite bushing, have increased sealing washer I31, sealing washer II32, sealing washer III 62 again and have further sealed each connection position, have good dustproof effect and better anti-pollution performance.
The utility model provides a 35kV combined type cable terminal can install according to following step:
step 8, fixing the upper connecting seat 41 of the composite sleeve 4 and the upper hardware fitting 3 through the upper fixing piece 33;
step 9, fixing the conductor bar 1 and the upper hardware fitting 3 through the fastener 2;
and 10, sealing the bottom of the tail pipe 63 by using a sealing tape 7.
Example 1
The utility model discloses the equipment process is explained in detail to insulating layer external diameter phi 39.08 mm's cable below:
step 8, fixing the upper connecting seat 41 of the composite sleeve 4 and the upper hardware fitting 3 through the upper fixing piece 33;
step 9, fixing the conductor bar 1 and the upper hardware fitting 3 through the fastener 2;
and 10, sealing the bottom of the tail pipe 63 by using a sealing tape 7.
The present invention has been described above in connection with preferred embodiments, which are merely exemplary and illustrative. On this basis, can be right the utility model discloses carry out multiple replacement and improvement, these all fall into the utility model discloses a protection scope.
Claims (9)
1. A35 kV composite cable terminal comprises a conductor bar (1) and a composite sleeve (4),
the conductor bar (1) is connected with the composite sleeve (4) through an upper hardware fitting (3), and a crimping terminal (11) is arranged at the bottom of the conductor bar (1) and connected with a cable;
an upper connecting seat (41) is arranged outside the top end of the composite sleeve (4) and fixedly connected with the upper hardware fitting (3), and a lower connecting seat (42) is arranged outside the bottom end of the composite sleeve (4) and fixedly connected with the mounting flange (6);
a tail pipe (63) is arranged on the mounting flange (6), so that the cable extends into the inner side of the composite sleeve (4) through the tail pipe (63) and is connected with a crimping terminal (11) of the conductor bar (1),
the outer wall of the cable at the upper end of the mounting flange (6) is also sleeved with a stress cone (5),
the cable is also provided with grounding wires which comprise a steel belt grounding wire (81) and a copper belt grounding wire (82),
the upper hardware fitting (3) is flat and is provided with a through hole,
the conductor bar (1) is columnar and penetrates through a through hole of the upper hardware fitting (3) and comprises an upper part and a lower part, wherein the diameter of the upper part of the conductor bar (1) is smaller than that of the through hole of the upper hardware fitting (3), the diameter of the lower part of the conductor bar is larger than that of the through hole of the upper hardware fitting (3), so that the conductor bar (1) can partially penetrate through the through hole of the upper hardware fitting (3) and is relatively fixed with the upper hardware fitting (3) through a fastener (2), the upper part of the conductor bar (1) is arranged above the upper hardware fitting (3), the lower part of the conductor bar (1) and the crimping terminal (11) are arranged below the upper hardware fitting (3),
the outer edge of the upper hardware (3) protrudes out of the outer edge of the composite sleeve (4).
2. The 35kV composite cable termination of claim 1,
and a sealing ring seat hole is further formed in the edge of the inner wall of the through hole of the upper hardware fitting (3), and a sealing ring I (31) with the size matched with that of the seat hole is arranged in the seat hole, so that the contact position of the upper hardware fitting (3) and the conductor bar (1) is sealed.
3. The 35kV composite cable termination of claim 1,
and a sealing ring seat hole is also formed in the contact surface of the upper hardware fitting (3) and the upper connecting seat (41), and a sealing ring II (32) with a corresponding size is arranged in the seat hole.
4. The 35kV composite cable termination of claim 1,
the middle part of the composite sleeve (4) is of a tubular structure, the outer wall of the composite sleeve is of an umbrella skirt laminated structure, and the composite sleeve is an umbrella skirt laminated composite electromagnetic tube with the length of 400-600 mm and the umbrella skirt creepage distance of more than 1000 mm.
5. The 35kV composite cable termination of claim 1,
and a sealing ring seat hole is formed in the contact surface of the mounting flange (6) and the lower connecting seat (42), and a sealing ring III (62) with a corresponding size is placed in the seat hole, so that the composite sleeve (4) and the mounting flange (6) are sealed.
6. The 35kV composite cable termination of any one of claims 2, 3, and 5,
the sealing ring I (31), the sealing ring II (32) and the sealing ring III (62) are all prefabricated silicon rubber U-shaped sealing rings, the sealing rings are molded by mould pressing and vulcanization, grooves corresponding to the U shapes of the sealing rings are formed in corresponding sealing ring seat holes, and the ratio of the cross sectional area of the sealing rings to the cross sectional area of the sealing ring seat holes is 1.1-1.5: 1.
7. The 35kV composite cable termination of claim 1,
the tail pipe (63) protrudes a certain distance from the lower end surface of the mounting flange (6).
8. The 35kV composite cable termination of claim 1,
the outer edge of the upper hardware (3) and the outer edge of the mounting flange (6) protrude out of the outer edge of the umbrella skirt at the outer side of the composite sleeve (4).
9. The 35kV composite cable termination of claim 1,
sealing tapes (7) are arranged at the contact positions of the cable, the steel belt grounding wire (81) and the copper belt grounding wire (82) and the tail pipe (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921287821.2U CN210780046U (en) | 2019-08-09 | 2019-08-09 | 35kV combined type cable termination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921287821.2U CN210780046U (en) | 2019-08-09 | 2019-08-09 | 35kV combined type cable termination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210780046U true CN210780046U (en) | 2020-06-16 |
Family
ID=71044845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921287821.2U Active CN210780046U (en) | 2019-08-09 | 2019-08-09 | 35kV combined type cable termination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210780046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466582A (en) * | 2020-11-30 | 2021-03-09 | 江西百新电瓷电气有限公司 | Porcelain insulator for subway tunnel and manufacturing process thereof |
-
2019
- 2019-08-09 CN CN201921287821.2U patent/CN210780046U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112466582A (en) * | 2020-11-30 | 2021-03-09 | 江西百新电瓷电气有限公司 | Porcelain insulator for subway tunnel and manufacturing process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2161805B1 (en) | Polymer bushing insulator and cable terminating connection part using the polymer bushing insulator | |
| CN102356528B (en) | Covered cable assemblies and methods and systems for forming the same | |
| US8754329B2 (en) | High voltage direct current cable termination apparatus | |
| WO2018223829A1 (en) | Composite cross-arm and transmission mast | |
| CN210780046U (en) | 35kV combined type cable termination | |
| CN204089140U (en) | A kind of 138 kilovolts of pre-fabricated dry cable terminations | |
| CN211880064U (en) | Cable terminal head structure | |
| EP2572424B1 (en) | A high voltage direct current cable termination apparatus | |
| WO2012173041A1 (en) | Terminal connecting section for dc cable | |
| CN111799730A (en) | Insulating tubular bus device for railway power supply line, connecting method and application thereof | |
| CN116884676A (en) | Insulation reinforcing device for power transmission and transformation overhead bare conductor and installation method thereof | |
| CN205811469U (en) | A kind of high-voltage wall bushing of three element structures | |
| CN201365095Y (en) | 10 and 35 KV metal tube bus terminal insulated and shielded by vulcanized silicon rubber | |
| CN211442292U (en) | High-voltage cable assembly and rail train | |
| CA2013254A1 (en) | High-voltage outdoor electrical bushing | |
| CN209232509U (en) | A kind of arrester silicon rubber shield | |
| US3243499A (en) | Cable termination system with girdle shield | |
| CN212181990U (en) | Power cable with special-shaped conductor | |
| CN220985308U (en) | Sealed voltage-sharing structure of oil-immersed ultrahigh voltage cable | |
| CN210780045U (en) | 66kV combined type cable terminal | |
| CN215580308U (en) | Seal cover with anti-aging structure | |
| CN217335036U (en) | Cable terminal structure | |
| CN219591774U (en) | Special ground clamp of extra-high voltage preformed armor rod formula anti-induction electricity | |
| CN220085760U (en) | Lightning arrester and power transmission tower | |
| CN220830303U (en) | High and cold resistant rigid cable terminal for electric locomotive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |