CN203352122U - Cold shrink type terminal assembly - Google Patents
Cold shrink type terminal assembly Download PDFInfo
- Publication number
- CN203352122U CN203352122U CN201320247143.3U CN201320247143U CN203352122U CN 203352122 U CN203352122 U CN 203352122U CN 201320247143 U CN201320247143 U CN 201320247143U CN 203352122 U CN203352122 U CN 203352122U
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- type terminal
- cold
- power cable
- contraction type
- stay pipe
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Abstract
The utility model discloses a cold shrink type terminal assembly comprising a supporting tube and a cold shrink type terminal. A segment of an outer wall of the supporting tube is coated by a layer of grease, and an insulation body of the cold shrink type terminal is expanded on the supporting tube coated by a layer of grease in advance. When the cold shrink type terminal is needed to be installed on a power cable, a connector of the power cable, whose conductive shielding layer and internal insulating layer are partly removed, is inserted into the supporting tube, the supporting tube is then dismounted, and the connector of the power cable is not needed to be coated by a layer of grease in an installation site. Therefore, the installation steps in the installation site are simplified, the installation efficiency of the cold shrink type terminal is improved, and rapid and convenient installation of the cold shrink type terminal can be achieved. Besides, the utility model also provides a method for installing the cold shrink type terminal on the power cable.
Description
Technical field
The utility model relates to a kind ofly can be arranged on the cold-contraction type terminal assembly on power cable fast and easily by the cold-contraction type terminal.
Background technology
In the prior art, when the joint that the cold-contraction type terminal is arranged on to power cable, (a part of metallic conduction screen on this joint and a part of internal insulating layer below it are removed, for exposing the inner conductor core) while going up, general all need on the internal insulating layer exposed of the joint of power cable, apply one deck grease, and then the cold-contraction type terminal is arranged on the joint of the power cable that is coated with one deck grease, so that with the space between the insulating body of the joint of grease-filled power cable and cold-contraction type terminal, the grease of filling can effectively reduce partial discharge and prevent punch-through.
But, when on-the-spot mounting condition is poor, for example, medium in Li, high-altitude, tunnel, apply one deck grease just more difficult on the joint of power cable, even become impossible, this brings great burden to the workman who carries out on-the-spot installation exercise, not only time-consuming but also require great effort, and the installation effect is also undesirable.
The utility model content
The purpose of this utility model is intended to solve at least one aspect of the above-mentioned problems in the prior art and defect.
A purpose of the present utility model be to provide a kind of can be fast and easily the cold-contraction type terminal is arranged on to the cold-contraction type terminal assembly on power cable.
Another purpose of the present utility model is to provide a kind of burden that can reduce the staff, simplifies the cold-contraction type terminal assembly of the installation steps of cold-contraction type terminal.
According to an aspect of the present utility model, it provides a kind of the cold-contraction type terminal is arranged on to the method on power cable, comprises the following steps:
S100 a: stay pipe is provided, and applies one deck grease on one section outer wall of this stay pipe;
S200: the insulating body of cold-contraction type terminal is expanded in advance on the stay pipe that is coated with one deck grease;
S300: the inside of the joint of removing a part of conductive shielding layer and a part of internal insulating layer of power cable being inserted to described stay pipe; With
S400: dismantle described stay pipe, make the cold-contraction type terminal be contracted on the joint of described power cable, thereby make in described grease-filled space between the joint of described cold-contraction type terminal and described power cable, in order to prevent, on the joint of power cable, partial discharge occurs.
According to an example embodiments of the present utility model, the cone penetration of described grease in the time of 25 ℃ is 130 to 205, and the unit of described cone penetration is 0.1mm, and described grease is No. 4 greases or No. 5 greases.
According to another example embodiments of the present utility model, described grease does not have swelling action to the insulating body of cold-contraction type terminal and the internal insulating layer of power cable.
According to another example embodiments of the present utility model, the internal insulating layer of described power cable is made by rubber or crosslinked polyethylene.
According to another example embodiments of the present utility model, described grease is silicone grease, fluorine silicone grease or phenyl silicone grease.
According to another example embodiments of the present utility model, also comprise step between step S300 and step S400:
S310: a metal connecting terminal is provided, and an end of this metal connecting terminal inserts described stay pipe from an end relative with power cable, and is electrically connected to the conductor cores of exposing of power cable.
According to another example embodiments of the present utility model, the mode by crimping between the conductor cores of described metal connecting terminal and described power cable is electrically connected to mutually.
According to another example embodiments of the present utility model, the insulating body of described metal connecting terminal and described cold-contraction type terminal is sealed and matched.
According to another example embodiments of the present utility model, described cold-contraction type terminal also comprises the stress control tube of the inside that is arranged on described insulating body.
According to another example embodiments of the present utility model, described stress control tube and the described insulating body part that forms as one.
According to another aspect of the present utility model, it provides a kind of cold-contraction type terminal assembly, comprising: a stay pipe applies one deck grease on one section outer wall of this stay pipe; With a cold-contraction type terminal, the insulating body of this cold-contraction type terminal is expanded on the stay pipe that is coated with one deck grease in advance.
According to an example embodiments of the present utility model, described cold-contraction type terminal is for being arranged on power cable, when needs are arranged on power cable by the cold-contraction type terminal, the inside of directly joint of removing a part of conductive shielding layer and a part of internal insulating layer of power cable being inserted to described stay pipe, then dismantle described stay pipe, make the cold-contraction type terminal be contracted on the joint of described power cable, thereby make in described grease-filled space between the joint of described cold-contraction type terminal and described power cable, on the joint of power cable, partial discharge appears in order to prevent.
According to another example embodiments of the present utility model, described cold-contraction type terminal assembly also comprises a metal connecting terminal, one end of this metal connecting terminal inserts described stay pipe from an end relative with power cable, and is electrically connected to the conductor cores of exposing of power cable.
According to another example embodiments of the present utility model, the mode by crimping between the conductor cores of described metal connecting terminal and described power cable is electrically connected to mutually.
According to another example embodiments of the present utility model, described cold-contraction type terminal also comprises the stress control tube of the inside that is arranged on described insulating body, described stress control tube and the described insulating body part that forms as one.
Compared with prior art, the utility model is by being coated in advance on stay pipe by one deck grease, and the insulating body of cold-contraction type terminal is expanded in advance on the stay pipe that is coated with one deck grease, therefore, in the time of on the joint that the cold-contraction type terminal need to be arranged on to power cable, directly the joint of power cable is inserted to the inside of stay pipe, then removing stay pipe gets final product, and need to be in erecting bed on the joint at power cable, apply one deck grease, therefore, the installation steps of erecting bed have been simplified, improved the installation effectiveness of cold-contraction type terminal, can realize installing fast and easily of cold-contraction type terminal.
By the description of hereinafter with reference to accompanying drawing, the utility model being done, other purpose of the present utility model and advantage will be apparent, and can help that the utility model is had to comprehensive understanding.
The accompanying drawing explanation
Fig. 1 shows the schematic diagram for the cold-contraction type terminal on the joint that is arranged on power cable according to an embodiment of the present utility model;
Fig. 2 shows the schematic diagram according to the stay pipe that is coated with in advance one deck grease of an embodiment of the present utility model;
Fig. 3 demonstration is expanded to the schematic diagram on the stay pipe that is coated with one deck grease shown in Fig. 2 in advance by the cold-contraction type terminal shown in Fig. 1; With
Fig. 4 shows that the stay pipe by Fig. 3 is arranged on the cold-contraction type terminal in the schematic diagram on the joint of power cable.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.In specification, same or analogous drawing reference numeral is indicated same or analogous parts.Following with reference to accompanying drawing, the explanation to the utility model execution mode is intended to overall utility model design of the present utility model is made an explanation, and not should be understood to a kind of restriction of the present utility model.
Fig. 1 shows the schematic diagram for the cold-contraction type terminal 100 on the joint that is arranged on power cable according to an embodiment of the present utility model.
As shown in Figure 1, this cold-contraction type terminal 100 mainly comprises the insulating body 110 of tubular.
As shown in Figure 1, be provided with a stress control tube 120 in the inside of insulating body 110, for occurring magnetic field concentration and discharge breakdown phenomenon on the joint that prevents power cable.In a preferred embodiment of the present utility model, stress control tube 120 can form an integral piece with insulating body 110.
As shown in Figure 1, form a plurality of outstanding cluster parachutes 111 outwardly in the outside of insulating body 110, for increasing the creepage distance of cold-contraction type terminal 100.
Fig. 2 shows the schematic diagram according to the stay pipe that is coated with in advance one deck grease 300 400 of an embodiment of the present utility model.
As shown in Figure 2, apply one deck grease 300 on one section outer wall corresponding with joint power cable 200 (referring to Fig. 4) stay pipe 400.This layer of grease 300 applies to be wanted evenly, and the coated weight of grease 300 is different and different according to the size of the joint of power cable, generally at 3 gram to 30 grams.
Fig. 3 demonstration is expanded to the schematic diagram on the stay pipe that is coated with one deck grease 300 400 shown in Fig. 2 in advance by the cold-contraction type terminal 100 shown in Fig. 1.
As shown in Figure 3, can cold-contraction type terminal 100 be expanded in advance on the stay pipe 400 that is coated with one deck grease 300 in factory, thereby obtain a cold-contraction type terminal assembly, therefore, in the time of on the joint that cold-contraction type terminal 100 need to be arranged on to power cable, just can directly the joint of power cable be inserted to the inside of the stay pipe of cold-contraction type terminal assembly, then removing stay pipe gets final product, and need to be in erecting bed on the joint at power cable, apply one deck grease, therefore, the installation steps of erecting bed have been simplified, improved the installation effectiveness of cold-contraction type terminal, can realize installing fast and easily of cold-contraction type terminal.
Fig. 4 shows that the stay pipe 400 by the cold-contraction type terminal assembly of Fig. 3 is arranged on cold-contraction type terminal 100 in the schematic diagram on the joint of power cable 200.
As shown in Figure 4, the joint by power cable 200 insert the cold-contraction type terminal assembly stay pipe 400 inside and remove stay pipe 400 after, just cold-contraction type terminal 100 can be arranged on the joint of power cable 200 easily.
In an embodiment of the present utility model, can successfully fill the space between the joint of cold-contraction type terminal 100 and power cable 200 in order to make grease 300, grease 300 need to have certain mobility, preferably, the cone penetration of grease 300 in the time of 25 ℃ is 130 to 205, the unit of this cone penetration is 0.1mm, and this grease 300 can be No. 4 greases or No. 5 greases.
In an embodiment of the present utility model, the insulating body 110 of 300 pairs of cold-contraction type terminals 100 of grease and the internal insulating layer 220 of power cable 200 do not have swelling action or swelling action less.Preferably, grease 300 can be silicone grease, fluorine silicone grease or phenyl silicone grease etc.
In an embodiment of the present utility model, the internal insulating layer 220 of power cable 200 is made by rubber or crosslinked polyethylene.
As shown in Figure 4, in an embodiment of the present utility model, cold-contraction type terminal 100 can also comprise a metal connecting terminal 500, when mounted, one end of this metal connecting terminal 500 inserts stay pipe 400 from an end relative with power cable 200, and is electrically connected to the conductor cores of exposing 210 of power cable 200.Preferably, between the conductor cores 210 of metal connecting terminal 500 and power cable 200, can mutually be electrically connected to by the mode of crimping.
As shown in Figure 4, between the insulating body 110 of metal connecting terminal 500 and cold-contraction type terminal 100, be sealed and matched, preferably, be extruded with in advance one deck lute in 600 on the inwall of the end towards metal connecting terminal 500 (right part in figure) of insulating body 110, realize the sealing of the right part of insulating body 110 by sealing clay 600.Sealing clay 600 for example can be squeezed on the inwall of insulating body 110 or method by perfusion is poured in insulating body 110 in advance by stay pipe 400.
Although not shown, before inserting stay pipe 400, one section conductive shielding layer 230 on the joint of power cable 200 is removed, and exposes the internal insulating layer 220 below it, and the end portion of the internal insulating layer 220 exposed is removed, expose the conductor cores 210 below it.
Describe in detail cold-contraction type terminal 100 is arranged on to the method on power cable 200 below in conjunction with accompanying drawing 1-4, the method mainly comprises the following steps:
S100 a: stay pipe 400 is provided, and applies 300 (as shown in Figure 2) of one deck grease on one section outer wall of this stay pipe 400;
S200: the insulating body of cold-contraction type terminal 100 110 is expanded in advance on the stay pipe 400 that is coated with one deck grease 300 (as shown in Figure 3);
S300: the inside (not shown) of the joint of a part of conductive shielding layer 230 of removing of power cable 200 and a part of internal insulating layer 220 being inserted to stay pipe 400; With
S400: dismounting stay pipe 400, make cold-contraction type terminal 100 be contracted on the joint of power cable 200, thereby make grease 300 be filled in the space between the joint of cold-contraction type terminal 100 and power cable, in order to prevent, on the joint of power cable 200, partial discharge (as shown in Figure 4) occurs.
When cold-contraction type terminal 100 comprises metal connecting terminal 500, also comprise step between step S300 and step S400:
S310: a metal connecting terminal 500 is provided, and an end of this metal connecting terminal 500 inserts stay pipe 400 from an end relative with power cable 200, and is electrically connected to the conductor cores of exposing 210 of power cable 200.
Although by reference to the accompanying drawings the utility model is illustrated, in accompanying drawing, disclosed embodiment is intended to the utility model preferred implementation is carried out to exemplary illustration, and can not be interpreted as a kind of restriction of the present utility model.
Although some embodiment of this overall utility model design are shown and explanation, those skilled in the art will appreciate that, in the situation that do not deviate from principle and the spirit of this overall utility model design, can make a change these embodiment, scope of the present utility model limits with claim and their equivalent.
It should be noted that word " comprises " does not get rid of other element or step, and word " " or " one " do not get rid of a plurality of.In addition, any element numbers of claim should not be construed as restriction scope of the present utility model.
Claims (6)
1. a cold-contraction type terminal assembly, is characterized in that, comprising:
A stay pipe (400) applies one deck grease (300) on one section outer wall of this stay pipe (400); With
A cold-contraction type terminal (100), the insulating body (110) of this cold-contraction type terminal (100) is expanded on the stay pipe (400) that is coated with one deck grease (300) in advance.
2. cold-contraction type terminal assembly according to claim 1, is characterized in that,
Described cold-contraction type terminal (100) is for being arranged on power cable (200), when needs are arranged on cold-contraction type terminal (100) on power cable (200), directly the joint of the removal of power cable (200) part conductive shielding layer (230) and a part of internal insulating layer (220) is inserted to the inside of described stay pipe (400), then dismantle described stay pipe (400), make cold-contraction type terminal (100) be contracted on the joint of described power cable (200), thereby make described grease (300) be filled in the space between the joint of described cold-contraction type terminal (100) and described power cable, on the joint of power cable (200), partial discharge appears in order to prevent.
3. cold-contraction type terminal assembly according to claim 2, it is characterized in that, described cold-contraction type terminal assembly also comprises a metal connecting terminal (500), one end of this metal connecting terminal (500) inserts described stay pipe (400) from an end relative with power cable (200), and is electrically connected to the conductor cores of exposing (210) of power cable (200).
4. cold-contraction type terminal assembly according to claim 3, is characterized in that, the mode by crimping between the conductor cores (210) of described metal connecting terminal (500) and described power cable (200) is electrically connected to mutually.
5. cold-contraction type terminal assembly according to claim 1, is characterized in that,
Described cold-contraction type terminal (100) also comprises the stress control tube (120) of the inside that is arranged on described insulating body (110).
6. cold-contraction type terminal assembly according to claim 5, is characterized in that, described stress control tube (120) and described insulating body (110) part that forms as one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320247143.3U CN203352122U (en) | 2013-05-06 | 2013-05-06 | Cold shrink type terminal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320247143.3U CN203352122U (en) | 2013-05-06 | 2013-05-06 | Cold shrink type terminal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203352122U true CN203352122U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320247143.3U Expired - Fee Related CN203352122U (en) | 2013-05-06 | 2013-05-06 | Cold shrink type terminal assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN203352122U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103869104A (en) * | 2014-04-02 | 2014-06-18 | 上海华普电缆有限公司 | Stress ring for partial discharge tests and high-voltage insulation tests on power cable of 10 kV or lower |
| CN104143795A (en) * | 2013-05-06 | 2014-11-12 | 泰科电子(上海)有限公司 | Method for installing chilling shrink type terminal on power cable and chilling shrink type terminal assembly |
| CN104734106A (en) * | 2013-12-19 | 2015-06-24 | 泰科电子(上海)有限公司 | Method for mounting contraction type terminal to electric cable and contraction type terminal assembly |
| CN114597681A (en) * | 2022-03-02 | 2022-06-07 | 浙江运达风电股份有限公司 | 10kV medium-voltage cable connecting assembly and method in tower barrel of wind generating set |
-
2013
- 2013-05-06 CN CN201320247143.3U patent/CN203352122U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143795A (en) * | 2013-05-06 | 2014-11-12 | 泰科电子(上海)有限公司 | Method for installing chilling shrink type terminal on power cable and chilling shrink type terminal assembly |
| CN104734106A (en) * | 2013-12-19 | 2015-06-24 | 泰科电子(上海)有限公司 | Method for mounting contraction type terminal to electric cable and contraction type terminal assembly |
| CN104734106B (en) * | 2013-12-19 | 2018-03-23 | 泰科电子(上海)有限公司 | The method and cold-contraction type terminal assembly cold-contraction type terminal being arranged on power cable |
| CN103869104A (en) * | 2014-04-02 | 2014-06-18 | 上海华普电缆有限公司 | Stress ring for partial discharge tests and high-voltage insulation tests on power cable of 10 kV or lower |
| CN114597681A (en) * | 2022-03-02 | 2022-06-07 | 浙江运达风电股份有限公司 | 10kV medium-voltage cable connecting assembly and method in tower barrel of wind generating set |
| CN114597681B (en) * | 2022-03-02 | 2024-05-17 | 运达能源科技集团股份有限公司 | 10KV medium-voltage cable connection assembly and method in tower barrel of wind generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20210506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |