CN212649075U - Ultrahigh-voltage porcelain bushing type cable terminal - Google Patents
Ultrahigh-voltage porcelain bushing type cable terminal Download PDFInfo
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- CN212649075U CN212649075U CN202021432789.5U CN202021432789U CN212649075U CN 212649075 U CN212649075 U CN 212649075U CN 202021432789 U CN202021432789 U CN 202021432789U CN 212649075 U CN212649075 U CN 212649075U
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- porcelain bushing
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- hardware fitting
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Abstract
The utility model discloses a superhigh pressure porcelain shell formula cable termination, this cable termination from the top down includes in proper order: the cable crimping device comprises a crimping piece (1), an upper hardware fitting (2), a porcelain bushing insulator (3), a bottom plate (4) and a tail pipe (5), wherein a cable penetrates from the lower portion of the tail pipe (5) and is connected with the crimping piece (1), a shielding ring (33) is arranged on the outer side of the porcelain bushing insulator (3), the shielding ring (33) is a circular ring with a circular section, and the shielding ring and the porcelain bushing insulator (3) are coaxial. The utility model discloses an ultrahigh voltage porcelain shell type cable terminal adopts the design of toper porcelain shell, and is with low costs, simple to operate, and the creep distance satisfies IV level filthy area, has improved terminal life, has mechanical strength height, insulating properties is good, resistant dirty ability reinforce, effectively restrain corona, even electric field intensity, stress cone long-term operation a lot of advantages such as difficult elastic deformation.
Description
Technical Field
The utility model relates to a cable accessories of superhigh pressure transmission system, especially a superhigh pressure porcelain shell formula cable termination belong to the electric power field.
Background
The existing porcelain bushing type terminal and joint product of the ultrahigh-voltage cable have the problems of aging deformation of a stress cone, reduction of insulating supporting force in the stress cone, oil leakage of the cable terminal and the like in the long-term use process, so that the service life of the cable terminal is influenced, and serious potential safety hazards are brought.
In addition, the existing cable terminal, especially the ultra-high voltage porcelain bushing type terminal, has poor uniformity of electric field intensity and poor safety, and is easy to cause dangerous situations when used in specific areas.
For the above reasons, the present inventors have conducted intensive studies on the existing cable terminal in order to design an ultra high voltage porcelain bushing type cable terminal capable of solving the above problems.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above problems, the present inventors have conducted intensive studies to design an ultra-high voltage porcelain bushing type cable terminal, which comprises, in order from top to bottom: the cable crimping device comprises a crimping piece 1, an upper hardware fitting 2, a porcelain insulator 3, a bottom plate 4 and a tail pipe 5, wherein a cable penetrates through the lower part of the tail pipe 5 and is connected with the crimping piece 1;
the cable comprises a cable conductor, a cable inner semi-conducting layer, a cable insulating layer, a cable outer semi-conducting layer and a cable outer sheath from inside to outside in sequence;
the upper part of the crimping piece 1 is columnar, and the lower part of the crimping piece is provided with a conductor insertion hole for connecting with a cable conductor;
the upper hardware fitting 2 is flat and provided with a through hole, the crimping piece 1 is fixed on the upper hardware fitting 2, the lower end of the crimping piece 1 is positioned below the upper hardware fitting 2, the upper end of the crimping piece 1 is positioned above the upper hardware fitting 2, and anti-abrasion paste is arranged at the contact position of the crimping piece 1 and the upper hardware fitting 2;
an annular waterproof bulge 21 is further arranged around the through hole on the upper surface of the upper hardware fitting 2, a rubber cap 12 is arranged on the waterproof bulge 21, the rubber cap 12 is sleeved on the outer surface of the waterproof bulge 21, and a hole through which the pressing piece 1 can pass is formed in the top end of the rubber cap 12;
the porcelain bushing insulator 3 is of a tubular structure made of ceramics, the outer surface of the porcelain bushing insulator is of an umbrella skirt laminated structure, the porcelain surface of the outer surface of the porcelain bushing insulator is smooth and clean, and the porcelain bushing insulator is fixed at the lower end of the upper hardware fitting 2;
a shielding ring 33 is arranged on the outer side of the porcelain bushing insulator 3, and the shielding ring 33 is a circular ring with a circular section and is coaxial with the porcelain bushing insulator 3;
a stress cone 34 is arranged on the inner side of the porcelain bushing insulator 3, and the stress cone 34 is sleeved on the inner semi-conducting layer of the cable;
the bottom plate 4 is of a flat plate structure and is fixedly connected with the porcelain bushing insulator 3, a support tube 41 is arranged on the bottom plate, the support tube 41 and the porcelain bushing insulator 3 are coaxial and vertically penetrate through the bottom plate 4, and the stress cone 34 is fixed with the support tube 41 through a silicone tube 35;
an insulating liquid is arranged in an internal space formed by the upper hardware fitting 2, the porcelain bushing insulator 3 and the bottom plate 4;
the tail pipe 5 is arranged at the lower end of the bottom plate 4 and is coaxial with the support pipe 41;
at the bottom end of the bottom plate 4, a plurality of post insulators 42 are also provided.
The cross section of the upper hardware fitting 2 is circular, and the through hole is located at the axis of the upper hardware fitting 2.
The waterproof bulge 21 is provided with a screw hole, the corresponding position on the crimping piece 1 is provided with a groove 11, and the crimping piece 1 and the waterproof bulge 21 are fixed through screwing a bolt.
The depth of the conductor insertion hole is more than 50 mm.
The cladding has sealing glue layer 6 in cable conductor and 1 junction of crimping spare, and in the sealing glue layer 6 outside, the cladding has the insulating self-adhesive tape 7 of multilayer, in the insulating self-adhesive tape 7 outside, the cladding has the glass fiber area.
An upper flange 31 is arranged at the upper end of the porcelain bushing insulator 3 and is fixed with the upper hardware fitting 2;
a lower flange 36 is arranged at the lower end of the porcelain bushing insulator 3, and the lower flange 36 is fixedly connected with the bottom plate 4 through a screw rod;
the pipe diameter of the porcelain insulator 3 gradually increases from the upper end to the lower end.
The shielding ring 33 is mounted at the lower end of the upper flange 31 through a mounting bracket 331, the mounting bracket 331 is a rod-shaped structure with a screw hole at one end, the end of the mounting bracket 331 with the screw hole is connected with the upper flange 31 through a bolt, and the other end of the mounting bracket 331 is fixedly connected with the shielding ring 33.
A nylon cord is arranged on the silicone tube 35, one end of the silicone tube 35 is bound on the support tube 41 through the nylon cord, and the other end of the silicone tube 35 is bound with the bottom end of the stress cone 34.
The bottom end of the stress cone 34 is connected with a cable insulation layer, a cable outside semi-conductive layer is stripped from the cable inside the support tube 41, a cable insulation layer is stripped from the cable at the corresponding position inside the silicone tube 35, two copper braided belts 411 are arranged inside the support tube 41 and connected with the cable outside semi-conductive layer, the copper braided belts 411 penetrate through the support tube 41 and extend out from the bottom end of the tail tube 5 and are fixed on the outer side of the tail tube 5,
and a sealing adhesive layer 6 is formed at the contact position of the copper braided belt and the outer semi-conducting layer of the cable by coating, and an insulating self-adhesive tape 7 is wound on the outer side of the sealing adhesive layer 6.
The bottom cladding at tail pipe 5 has epoxy glue mud 51 tail pipe 5 lower extreme still is provided with sealing glue layer 6, in the epoxy glue mud 51 and the sealing glue layer 6 outside, the winding has insulating self-adhesive tape 7, in the insulating self-adhesive tape 7 outside, the cover is equipped with pyrocondensation pipe 8.
The utility model provides an ultrahigh voltage porcelain bushing type cable terminal has following beneficial effect:
(1) the utility model provides an anti-abrasion paste is arranged between the crimping piece and the upper hardware fitting, thereby reducing abrasion and prolonging the service life of the terminal;
(2) the ultrahigh voltage porcelain bushing type cable terminal provided by the utility model has high mechanical strength, good insulating property and strong stain resistance;
(3) the ultrahigh voltage porcelain bushing type cable terminal provided by the utility model has a unique stress cone fixing and supporting structure, and effectively inhibits the elastic deformation generated by the long-term operation of the stress cone;
(4) the ultrahigh voltage porcelain bushing type cable terminal provided by the utility model has a unique shielding ring, can effectively shield and protect the upper hardware fitting 2, effectively inhibits corona on the upper hardware fitting, and homogenizes electric field intensity;
(5) the utility model provides an ultrahigh voltage porcelain shell type cable termination adopts the design of toper porcelain shell, and is with low costs, simple to operate, and the creep distance satisfies IV level filthy area.
Drawings
Fig. 1 shows a schematic structural view of an ultra-high voltage porcelain bushing type cable termination according to a preferred embodiment of the present invention;
fig. 2 shows a schematic structural view of an ultra-high voltage porcelain bushing type cable termination according to a preferred embodiment of the present invention;
fig. 3 shows a schematic view of an ultra-high voltage porcelain bushing type cable termination shield ring structure according to a preferred embodiment of the present invention;
fig. 4 is a schematic view illustrating a connection structure of a stress cone and a support tube of an ultra-high voltage porcelain bushing type cable termination according to a preferred embodiment of the present invention;
fig. 5 shows a schematic diagram of an ultra-high voltage porcelain bushing type cable terminal tail pipe structure according to a preferred embodiment of the present invention.
The reference numbers illustrate:
1-crimping member;
11-a groove;
12-a rubber cap;
2-upper hardware fitting;
21-waterproof protrusions;
3-a porcelain bushing insulator;
31-an upper flange;
33-a shield ring;
331-a mounting bracket;
34-a stress cone;
35-silicone tube;
36-a lower flange;
4-a bottom plate;
41-support tube;
411-copper braided strap;
42-post insulators;
5-tail pipe
51-epoxy mastic;
6-sealing adhesive layer;
7-insulating self-adhesive tape;
8-heat shrinkable tube
9-glass fiber tape.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. The features and advantages of the present invention will become more apparent from the description.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
According to the utility model provides a pair of superhigh pressure porcelain shell formula cable termination, as shown in fig. 1, this cable termination from the top down includes in proper order: the crimping piece 1, the upper hardware 2, the porcelain insulator 3, the bottom plate 4 and the tail pipe 5 are connected with the crimping piece 1, and a cable penetrates from the lower part of the tail pipe 5 as shown in figure 1.
The cable sequentially comprises a cable conductor, a cable inner semi-conducting layer, a cable insulating layer, a cable outer semi-conducting layer and a cable outer sheath from inside to outside, and all the layers are sequentially stripped to be connected with a cable terminal.
Specifically, the crimping piece 1 is connected with a cable conductor, the upper part of the crimping piece 1 is columnar, and the lower part of the crimping piece 1 is provided with a conductor insertion hole for inserting the cable conductor, so that the connection of the crimping piece 1 and the cable conductor is realized.
In a preferred embodiment, the inner semi-conductive layer of the cable at the top of the cable is stripped and cut into a slope shape, so that the top end of the cable is in a pencil-head shape, and the cable conductor is exposed to facilitate the insertion of the cable conductor into the conductor insertion hole at the bottom of the crimping piece 1.
More preferably, the exposed length of the cable conductor and the depth of the conductor insertion hole are greater than 50mm to ensure a sufficient contact area of the cable conductor with the crimp member 1.
In a preferred embodiment, the cable conductor is coaxial with the crimp 1.
The utility model discloses in, at cable conductor and crimping 1 junction, still be provided with seal structure, including sealing glue layer 6, insulating self-adhesive tape 7 and glass fiber tape 9, as shown in figure 2. The sealing glue layer 6 cladding is on semi-conducting layer and crimping spare 1 in the cable, and in the sealing glue layer 6 outside, the parcel has multilayer insulation self-adhesive tape 7 to fixed sealing glue layer 6, in the insulation self-adhesive tape 7 outside, is provided with glass fiber area 9.
The glass fiber tape 9 has the advantages of good insulativity, high temperature resistance, good heat insulation performance, good corrosion resistance and high mechanical strength, and can effectively ensure the stability and the safety of the terminal.
According to the utility model discloses, crimping 1 is fixed on upper portion gold utensil 2, specifically, upper portion gold utensil 2 is flat, is provided with the through-hole on it, the cross-sectional diameter of 1 lower extreme of crimping is less than the aperture of through-hole, and the cross-sectional diameter of 1 lower extreme of crimping is greater than the aperture of through-hole for 1 lower extreme of crimping is located upper portion gold utensil 2 below, and 1 upper end of crimping is located upper portion gold utensil 2 top.
In a preferred embodiment, the cross section of the upper fitting 2 is circular, the through hole is located at the axis of the upper fitting 2, an annular waterproof protrusion 21 is further provided around the through hole on the upper surface of the upper fitting 2, as shown in fig. 2, a screw hole is provided on the waterproof protrusion 21, a groove 11 is provided at a corresponding position on the crimping piece 1, and the crimping piece 1 and the waterproof protrusion 21 are fixed by screwing a bolt, so that the fixation of the crimping piece 1 and the upper fitting 2 is realized.
More preferably, a sealing ring groove is further provided on the crimping piece 1 at a position contacting the upper metal fitting 2, so as to place a sealing ring, thereby improving the sealing performance between the crimping piece 1 and the upper metal fitting 2.
More preferably, silicone grease is further provided at the contact position of the crimp 1 and the upper fittings 2 to enhance the sealing effect.
In a more preferred embodiment, an anti-abrasion paste is further provided at a contact position of the crimping piece 1 and the upper hardware fitting 2, so that abrasion is effectively relieved, and the service life of the cable terminal is prolonged.
In a preferred embodiment, a rubber cap 12 is further disposed on the waterproof protrusion 21, the rubber cap 12 is sleeved on the outer surface of the waterproof protrusion 21, a hole through which the pressing member 1 can pass is formed in the top end of the rubber cap 12, and rainwater is further prevented from permeating through the good expansion and contraction characteristic of the rubber cap 12.
More preferably, silicone grease is applied to the inner side of the rubber cap 12 to enhance the waterproof effect.
The insulator 3 is fixed at the lower end of the upper hardware fitting 2, the upper flange 31 is arranged at the upper end of the insulator 3, a screw hole is formed in the corresponding position of the upper hardware fitting 2, and the insulator 3 is fixed with the upper hardware fitting 2 through a bolt.
Further, a sealing ring is arranged at the contact position of the upper flange 31 and the upper hardware fitting 2, so that sealing between the porcelain bushing insulator 3 and the upper hardware fitting 2 is guaranteed.
The insulator 3 is a tubular structure made of ceramics, the pipe diameter of the insulator gradually increases from the upper end to the lower end, furthermore, the insulator 3 and the crimping part 1 are coaxial, the outer surface of the insulator is of an umbrella skirt laminated structure, and the porcelain surface of the insulator is smooth. The ceramic used for forming the ceramic insulator is not particularly limited, and a commonly used insulating ceramic material may be used, which is not described herein.
Compared with other types of insulators, the porcelain insulator 3 enables the cable terminal to have the advantages of being high in mechanical strength, good in insulating performance and strong in pollution resistance. In a preferred embodiment, the insulator 3 is made of high strength porcelain, and the outer surface of the insulator is in a conical large umbrella structure and a conical small umbrella structure, and the porcelain surface of the outer surface is smooth, as shown in fig. 1, so that the insulator has good anti-pollution flashover characteristics and better insulating property.
Outside the insulator 3, a shielding ring 33 is provided, said shielding ring 33 being a circular ring with a circular cross-section, which is coaxial with the insulator 3, as shown in fig. 3, said shielding ring 33 being mounted on the lower end of the upper flange 31 by means of a mounting bracket 331 in a preferred embodiment. The mounting bracket 331 has a rod-shaped structure with a screw hole at one end, the screw hole at one end of the mounting bracket 331 is connected to the upper flange 31 by a bolt, and the other end of the mounting bracket 331 is fixedly connected to the shield ring 33, preferably by welding.
The shielding ring 33 can effectively shield and protect the upper hardware fitting 2, can also play a role in uniform electric field, effectively inhibits corona on the upper hardware fitting 2, and homogenizes electric field strength.
The inner side of the porcelain insulator 3 is provided with a stress cone 34, and the stress cone 34 is sleeved on the inner semi-conducting layer of the cable and is in interference fit with the cable.
Further, the stress cone 34 is fixed to the base plate 4, as shown in fig. 4.
A support tube 41 is provided on the base plate 4, said support tube 41 being coaxial with the insulator 3, the support tube 41 extending through the base plate 4 such that a cable can be passed through the base plate 4 via the support tube 41.
Further, the stress cone 34 is fixed to the support tube 41 through the silicone tube 35, a nylon cord is disposed on the silicone tube 35, one end of the silicone tube 35 is bound to the support tube 41 through the nylon cord, and the other end of the silicone tube 35 is bound to the bottom end of the stress cone 34.
According to the utility model discloses, the bottom and the cable insulation layer of stress cone 34 are connected, and the outer semi-conductive layer of cable is peeled off to the inboard cable of stay tube 41, and the cable insulation layer is peeled off to the inboard cable that corresponds the position of silicone tube 35, sets up two copper braid over braid 411 and is connected with the outer semi-conductive layer of cable in stay tube 41, and copper braid over braid 411 passes stay tube 41.
In a preferred embodiment, a sealant layer 6 is coated and formed at the contact position of the copper braided belt and the outer semi-conducting layer of the cable, and an insulating self-adhesive tape 7 is wound outside the sealant layer 6.
The bottom plate 4 is of a flat plate structure, a flat plate with a preferred section as a circle center is fixedly connected with the porcelain bushing insulator 3, a lower flange 36 is arranged at the lower end of the porcelain bushing insulator 3, and the lower flange 36 is fixedly connected with the bottom plate 4 through a screw rod.
According to the utility model discloses, in the inner space that upper hardware fitting 2, insulator 3 and bottom plate 4 are constituteed, still be provided with insulating liquid for stress cone 34, cable all soak completely in insulating filling liquid, insulating filling liquid is preferred to be high temperature resistant insulating filling liquid, with the dielectric property that improves cable terminal, and improved cable terminal's heat-sinking capability.
At the bottom of bottom plate 4, still be provided with a plurality of column insulator 42, column insulator 42 passes through bolt and bottom plate 4 fixed connection.
The tail pipe 5 is arranged at the center of the bottom end of the bottom plate 4, the tail pipe 5 and the support pipe 41 are coaxial, the inner side of the tail pipe 5 is provided with a cable outer semi-conducting layer, the cable at the lower end of the tail pipe 5 is provided with a cable outer sheath, and the copper braided belt 411 extends out of the bottom end of the tail pipe 5 and is fixed on the outer side of the tail pipe 5, as shown in fig. 5.
Further, the copper braid 411 is fixed on the outer side of the tail pipe 5 in a welding manner, the bottom end of the tail pipe 5 is covered with epoxy cement 51 to completely seal the bottom end of the tail pipe 5, and in a preferred embodiment, a sealant layer 6 is further disposed at the lower end of the tail pipe 5, and the sealant layer 6 covers the cable outer semi-conductive layer and a part of the cable outer sheath to completely protect the exposed cable outer semi-conductive layer.
Preferably, an insulating self-adhesive tape 7 is also wound around the outside of the epoxy mastic 51 and the sealant layer 6 to further prevent a leakage situation.
More preferably, the outer side of the insulating self-adhesive tape 7 is further sleeved with a heat shrink tube 8, and the heat shrink tube 8 wraps the insulating self-adhesive tape 7 to play a role in protecting and shaping.
The utility model discloses a cable termination has multilayer seal structure, and the effectual oil leak phenomenon that prevents has strengthened cable termination's insulating properties and sealing performance.
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 (10)
1. An ultra-high voltage porcelain bushing type cable termination, characterized in that the cable termination comprises in order from top to bottom: the cable crimping device comprises a crimping piece (1), an upper hardware fitting (2), a porcelain bushing insulator (3), a bottom plate (4) and a tail pipe (5), wherein a cable penetrates from the lower part of the tail pipe (5) and is connected with the crimping piece (1);
the cable comprises a cable conductor, a cable inner semi-conducting layer, a cable insulating layer, a cable outer semi-conducting layer and a cable outer sheath from inside to outside in sequence;
the upper part of the crimping piece (1) is columnar, and the lower part of the crimping piece is provided with a conductor insertion hole for connecting with a cable conductor;
the upper hardware fitting (2) is flat and provided with a through hole, the crimping piece (1) is fixed on the upper hardware fitting (2), the lower end of the crimping piece (1) is located below the upper hardware fitting (2), the upper end of the crimping piece (1) is located above the upper hardware fitting (2), and anti-abrasion paste is arranged at the contact position of the crimping piece (1) and the upper hardware fitting (2);
an annular waterproof bulge (21) is further arranged around the through hole in the upper surface of the upper hardware fitting (2), a rubber cap (12) is arranged on the waterproof bulge (21), the rubber cap (12) is sleeved on the outer surface of the waterproof bulge (21), and a hole through which the pressing piece (1) can penetrate is formed in the top end of the rubber cap (12);
the porcelain bushing insulator (3) is of a tubular structure made of high-strength porcelain, the outer surface of the porcelain bushing insulator is of an umbrella skirt laminated structure, the porcelain surface of the outer surface of the porcelain bushing insulator is smooth and clean, and the porcelain bushing insulator is fixed at the lower end of the upper hardware fitting (2);
a shielding ring (33) is arranged on the outer side of the porcelain bushing insulator (3), the shielding ring (33) is a circular ring with a circular section, and the shielding ring and the porcelain bushing insulator (3) have the same axle center;
a stress cone (34) is arranged on the inner side of the porcelain bushing insulator (3), and the stress cone (34) is sleeved on the inner semi-conducting layer of the cable;
the bottom plate (4) is of a flat plate structure and is fixedly connected with the porcelain bushing insulator (3), a supporting tube (41) is arranged on the bottom plate, the supporting tube (41) and the porcelain bushing insulator (3) are coaxial and vertically penetrate through the bottom plate (4), and the stress cone (34) is fixed with the supporting tube (41) through a silicone tube (35);
insulating liquid is arranged in an internal space formed by the upper hardware (2), the porcelain bushing insulator (3) and the bottom plate (4);
the tail pipe (5) is arranged at the lower end of the bottom plate (4) and is coaxial with the support pipe (41);
the bottom end of the bottom plate (4) is also provided with a plurality of column insulators (42).
2. The ultra-high voltage porcelain bushing type cable termination according to claim 1,
the cross section of the upper hardware fitting (2) is circular, and the through hole is located at the axis of the upper hardware fitting (2).
3. The ultra-high voltage porcelain bushing type cable termination according to claim 1,
the waterproof bulge (21) is provided with a screw hole, the corresponding position of the crimping piece (1) is provided with a groove (11), and the crimping piece (1) and the waterproof bulge (21) are fixed through screwing a bolt.
4. The ultra-high voltage porcelain bushing type cable termination according to claim 1,
the depth of the conductor insertion hole is more than 50 mm.
5. The ultra-high voltage porcelain bushing type cable termination according to claim 1,
the cable conductor is coated with a sealing adhesive layer (6) at the joint of the cable conductor and the crimping piece (1), a plurality of layers of insulating self-adhesive tapes (7) are coated outside the sealing adhesive layer (6), and a glass fiber tape is coated outside the insulating self-adhesive tapes (7).
6. The ultra-high voltage porcelain bushing type cable termination according to claim 1,
an upper flange (31) is arranged at the upper end of the porcelain bushing insulator (3) and is fixed with the upper hardware fitting (2);
a lower flange (36) is arranged at the lower end of the porcelain bushing insulator (3), and the lower flange (36) is fixedly connected with the bottom plate (4) through a screw rod;
the pipe diameter of the porcelain insulator (3) gradually increases from the upper end to the lower end.
7. The ultra-high voltage porcelain bushing type cable termination according to claim 1,
the shielding ring (33) is installed at the lower end of the upper flange (31) through an installation support (331), the installation support (331) is of a rod-shaped structure with a screw hole at one end, provided with the screw hole, of the installation support (331) is connected with the upper flange (31) through a bolt, and the other end of the installation support (331) is fixedly connected with the shielding ring (33).
8. The ultra-high voltage porcelain bushing type cable termination according to claim 1,
a nylon cord is arranged on the silicone tube (35), one end of the silicone tube (35) is bound on the support tube (41) through the nylon cord, and the other end of the silicone tube (35) is bound with the bottom end of the stress cone (34).
9. The ultra-high voltage porcelain bushing type cable termination according to claim 1,
the bottom end of the stress cone (34) is connected with the cable insulation layer.
10. The ultra-high voltage porcelain bushing type cable termination according to claim 1,
the bottom end of the tail pipe (5) is coated with epoxy daub (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021432789.5U CN212649075U (en) | 2020-07-20 | 2020-07-20 | Ultrahigh-voltage porcelain bushing type cable terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021432789.5U CN212649075U (en) | 2020-07-20 | 2020-07-20 | Ultrahigh-voltage porcelain bushing type cable terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212649075U true CN212649075U (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021432789.5U Active CN212649075U (en) | 2020-07-20 | 2020-07-20 | Ultrahigh-voltage porcelain bushing type cable terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212649075U (en) |
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2020
- 2020-07-20 CN CN202021432789.5U patent/CN212649075U/en active Active
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