CN208849434U - A kind of wrapped transition joint of cable - Google Patents
A kind of wrapped transition joint of cable Download PDFInfo
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- CN208849434U CN208849434U CN201821531086.0U CN201821531086U CN208849434U CN 208849434 U CN208849434 U CN 208849434U CN 201821531086 U CN201821531086 U CN 201821531086U CN 208849434 U CN208849434 U CN 208849434U
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Abstract
The utility model provides a kind of wrapped transition joint of cable, and for the docking of two Duan Sanxin or single-core cable, the connector including connecting each single-phase cable is wrapped, the wrapped outer protection of all connectors is wrapped；Wrapped connector includes connection with the aluminium hydraulic pressed connecting pipe of phase cable conductor core, the stress cone being sleeved on cable, the limited step of coiling, semiconductive belt, insulating tape, ground shield layer, copper mesh layers, single-phase cable metal mask tape, layer of PVC, single-phase cable waterproof layer；Protect wrapped successively includes binding layer, cable metallic screens band, cable waterproof layer, cable sheath from the inside to the outside；Pass through wrapped transition joint provided by the utility model, it can achieve that the connection of cable conductor core is good, insulation is reliable, good seal performance, high mechanical strength, the purpose that structure is simple, easy to manufacture and install, it can guarantee the safety of cable operation and steady, and obtain preferable economic benefit, thus, great application value.
Description
Technical field
The utility model relates to a kind of cable accessory, especially a kind of wrapped transition joint of cable belongs to cable accessory system
Make technical field.
Background technique
Cable is the bridge between power supply unit and electrical equipment, plays a part of transmitting electric power, be widely used.Modern times are raw
Living and production be unable to do without electric power, therefore, also just be unable to do without cable.With being widely used for cable, the quantity of required cable accessory
Also more and more, quality is also higher and higher.
In the laid processes of cable, when the length of cable is less than lay length, need to be passed through by two sections or multistage cable
Connection, makes the conductor conductor thread core connection of cable and forms continuous cable.The connector of cable connection must have certain exhausted
Edge and sealing performance meet electric insulation regulation, structurally reasonable, adapt to environment etc. and require.Therefore, connector construction production and its
Quality is directly related to the stabilization and unfailing performance of cable run operation.
When cable connection, it usually needs use cable accessory.
Cable accessory (English name: Cable Accessories) refers to connecting cable and electric line and related matches
The product of electric installation refers generally to the intermediate connection and terminal connection of various cables in cable run, it constitutes electricity together with cable
Power transport net；The requirement of cable accessory is mainly the characteristic according to the construction of cable, should restore the performance of cable, can protect again
Demonstrate,prove the extension of cable length and the connection of terminal.The reliability of HV cable accessories can from electric property, moisture resistant seal,
Mechanical performance and processing performance etc. are judged.
Cable intermediate joint is the important component of cable run, since cable intermediate joint is compound Jie of multi-layer solid
Matter insulation and sealing structure, it is increasingly complex compared to its structure of cable itself, need live manual manufacture installation；Further, since cable
Transition joint service condition badly even needs long period of soaking in water, it is easy to conductor connecting tube occur and connect not tight, connecting tube
It is eccentric, joint sealing waterproof is not perfect, the mechanical strength series of problems such as not enough, cause cable intermediate joint often to become cable
Weak link in road；Cable operating experience shows that most cable fault is related with cable accessory, wherein in cable indirectly
Head failure rate highest.
The seventies initial stage, crosslinked cable attachment are made of traditional wrapped production method of oilpaper, specific method
Are as follows: increased with insulation band work around insulation, electric field distortion is eliminated using stress control belt in semiconductive end.Since stress control belt is
It is a kind of to be made by the substance of high dielectric constant, and this substance is under the different temperatures of cable operational process, dielectric constant meeting
It changes, dielectric loss is caused to improve, Yi Fare, therefore, failure are more.
The wrapped connector typical fault of tradition is studied, manufacturing process is repeated and carries out pressure test, as a result, it has been found that,
Away from insulation breakdown easily occurs at shielding mouth 20mm, this region is generally also the marginal portion of stress control belt.
Due to the particularity of stress control belt material, i.e., there is high dielectric constant to be capable of the field strength of dispersed masks mouth concentration,
Guarantee in cable operational process again, the dielectric constant of band does not change at different temperatures, currently, the country is also difficult to look for
To satisfactory stress control belt.
In the prior art, the stress control belt that pure wrapped transition joint uses is by stressor layers control methods (also known as parameter
Method) Lai Shixian, that is, pass through the high dielectric constant resistivity of stressor layers, makes in electric field power line in Liang Ge differing dielectric constant circle
It is reflected on face, reaches control field distribution.
However, in order to improve field strength distribution it is necessary to improve the dielectric constant of band, but this direction increases cable master again
Leakage current on the outside of insulating, causes temperature to increase.Temperature is excessively high to will lead to the decline of cable major insulation mechanical performance.Cable master is exhausted
If edge temperature change is excessive, the service life of cable major insulation also will affect, and may cause the breakdown risk of cable major insulation.
In addition to the above methods, there are also the stress cone methods (also known as geometric method) used in integral prefabricated transition joint to realize
The purpose of field distribution is controlled, the method is the geometric dimension by increasing superinsulation, increases surface stray capacitance, makes terminal
The capacitance current that insulation flows into semiconductive end is distributed in each stray capacitance, is uniformly divided so that shielding Analysis of End Electric Field be made to reach
Cloth.
However, integral prefabricated transition joint is to hold tightly by the resilience of rubber material itself in cable outer surface, it is prefabricated in
Between have apparent interface between joint body and cable, and this interface is a weak spot.When transition joint is due to rubber itself
Aging and when resilience being caused to be lost, the hidden danger that there is interfacial seal to be damaged.In addition, also needing to pass through silicon between transition joint and cable
Rouge or silicone oil lubricate and fill up the gap at interface.Although silicone grease can play the insulating capacity at enhancing interface, also affect
Contact between cable conductor conductor thread core and prefabricated transition joint high-tension shielding is easy fever due to poor contact, thus
The thermal breakdown at high-tension shielding electrode may be caused.
In conclusion no matter which kind of method, in the prior art, cable intermediate joint and its manufacture craft are all incomplete,
It is more complicated to be mainly manifested in structure, the aspect of performance such as the connection of conductor conductor thread core, major insulation interfacial seal and mechanical strength
All have the defects that certain, affects the safety of cable operation and steady.
Utility model content
In order to overcome the deficiencies of the prior art, the utility model provides a kind of wrapped transition joint of cable, to reach cable
Conductor thread core connection is good, insulation is reliable, good seal performance, high mechanical strength, the purpose that structure is simple, easy to manufacture and install,
Guarantee the safety of cable operation and steady.
In order to achieve the above object, the utility model adopts the following technical solutions:
A kind of wrapped transition joint of cable, the docking for two Duan Sanxin or single-core cable；
The cable includes sheath and armouring or sheath and armouring and liner from outside to inside, sheath and armouring or sheath
With armouring and liner in include sub-thread or the single-phase cable of multiply, each single-phase cable of stock include from outside to inside metal screen layer, absolutely
Edge shielded layer, main insulating layer, internal shield and conductor thread core；
The wrapped transition joint include connect each single-phase cable connector is wrapped, the wrapped outer protection of all connectors around
Packet；
When two sections of cable buttings, sheath and armouring or shield are successively stripped in two sections of cable socket certain positions respectively first
Set and armouring and liner, then successively strip metal screen layer, insulation screen, main insulating layer, the interior screen of the single-phase cable of each stock
Layer is covered, the conductor thread core for needing to dock is exposed, then first presses the single-phase cable of each stock in two sections of cables by the way that connector is wrapped
It is docked with mutually requirement, then by protecting the wrapped single-phase cable to all docking to carry out outer layer protection, is completed entirely wrapped
The docking of two sections of cables is realized in transition joint, it is characterised in that:
The connector is wrapped to include:
Connect the aluminium hydraulic pressed connecting pipe with phase cable conductor core；
It is set on each single-phase cable, its semiconductive portion is wrapped in insulation screen and its insulated end portions is wrapped in master
Rubber material tapered stress cone outside insulating layer；
At metal screen layer and insulation screen stripping on the outside of stress cone semiconductive portion, by the wrapped formation of semi-conductive tape
The limited step of relative position is indicated simultaneously for fixing metal screen layer and insulation screen；
The semiconductive belt formed by semi-conductive tape around aluminium hydraulic pressed connecting pipe and butting conductors core exposed section；
It is answered since the insulated end portions of a stress cone in two sections of single-phase cables having connected to another by insulating tape
The insulated end portions of power cone terminate the insulating tape of wrapped formation；
By semi-conductive tape between the limited step of two single-phase cables of docking, ground shield layer is formed；
The copper mesh layers of half lap scarf joint mode wrapped formation outside ground shield layer are used by copper mesh band, copper mesh layers both ends are used respectively
Phase cable constant force spring is fixed；
The single-phase cable metal mask tape that single-phase cable ends metal screen layer is formed is docked by copper braiding band connection, it is single-phase
Cable metallic screens band both ends are fixed together with phase cable constant force spring with copper mesh layers respectively；
Layer of PVC of the PVC with wrapped formation is used in copper mesh layers and phase cable constant force spring and between two phase cable constant force springs；
The single-phase electricity formed is covered by water blocking tape is wrapped outside above-mentioned layer of PVC, copper mesh layers and single-phase cable metal mask tape
Cable waterproof layer；
The protection is wrapped successively to include: from the inside to the outside
The wrapped binding layer bundled of each single-phase cable that the wrapped production of connector will be completed with PVC band；
Two sections of band connection are woven by copper to have connected cable respectively armouring and both ends are fixed with cable constant force spring formed respectively
Cable metallic screens band；
Cable is had connected around cable metallic screens band, armouring and two sections by water blocking tape respectively to be formed on the sheath of part
Cable waterproof layer；
The cable sheath formed outside cable waterproof layer by armoring tape half lap scarf joint.
Compared with prior art, the utility model beneficial effect and marked improvement are:
1) the wrapped transition joint of cable provided by the utility model not only has outstanding electric property, can reach pattern
Test level, moreover, the wrapped transition joint nargin of its 35kV cable has been more than the 160kV pressure resistance water that 110kV voltage class requires
Flat, the wrapped transition joint of 10kV cable has been more than the resistance to voltage levels for the 81kV that 30kV voltage class requires, therefore, with similar centre
Connector compares, and runs more safe and reliable；
2) existing skill is replaced using rubber material tapered stress cone in the wrapped transition joint of cable provided by the utility model
The Stress Control attachment that high dielectric constant material makes in art becomes since rubber material dielectric constant does not change with running temperature
Change, therefore cable connector will not occur because longtime running causes dielectric loss to increase, fever punctures, cable connector is able to satisfy for a long time
The requirement of operation；
3) it is demonstrated experimentally that the wrapped transition joint partial discharge inception voltage of cable provided by the utility model is high, is not easy to send out
Raw breakdown；
4) in addition, the wrapped transition joint of cable provided by the utility model not only has the common excellent of existing wrapped connector
Point, interface remain higher enclasping force, moreover, because the band resilience that the utility model uses is good, interface enclasping force
It is not influenced by cable operating temperature；
5) the wrapped transition joint of cable provided by the utility model sealing performance with higher, is able to satisfy high water level
Long-term safety operation under the conditions of the immersion of area；
6) the wrapped transition joint simple process of cable provided by the utility model, production saving of labor, time saving, can satisfy cable
Repairing requirement when operation troubles；
7) since the wrapped transition joint of cable provided by the utility model uses prefabricated stress cone, can preferably disperse
The field strength concentrated at cable connection, therefore, the overall dimensions of transition joint substantially reduce, the more similar wrapped connector of band used
20~25% can be reduced, therefore, preferable economic benefit can be obtained.
Detailed description of the invention
Fig. 1 is three-core cable structural schematic diagram in the prior art；
Fig. 2 is two strands of docking schematic diagrames with mutually single-phase cable；
Fig. 3 is the wrapped middle docking attachment erection structure schematic diagram of connector；
Fig. 4 is that the wrapped middle semiconductive belt of connector forms schematic diagram；
Fig. 5 is that the wrapped middle insulating tape of connector forms schematic diagram；
Fig. 6 is that the wrapped center tap shielded layer of connector forms schematic diagram；
Fig. 7 is that the wrapped middle copper mesh layers of connector and its single-phase cable metal mask tape form schematic diagram；
Fig. 8 is that the wrapped middle layer of PVC of connector forms schematic diagram；
Fig. 9 is that single-phase cable waterproof layer forms schematic diagram during connector is wrapped；
Figure 10 is with the wrapped the schematic diagram of the section structure of phase cable connector；
Figure 11 is that wrapped middle cable metallic screens band is protected to constitute schematic diagram；
Figure 12 is that wrapped middle cable waterproof layer is protected to constitute schematic diagram；
Figure 13 is that wrapped middle cable sheath is protected to constitute schematic diagram.
In figure:
11- sheath, 12- armouring, 13- liner, 14- metal screen layer, 15- insulation screen, 16- main insulating layer, 17- are led
Body core；
2- aluminium hydraulic pressed connecting pipe；
3- stress cone, 31- semiconductive portion, 32- insulated end portions；
4- limited step；
51- semiconductive belt, 52- insulating tape, 53- ground shield layer, 54- copper mesh layers, 55- phase cable constant force spring,
55 '-cable constant force springs, the single-phase cable metal mask tape of 56-, 57-PVC layers, the single-phase cable waterproof layer of 58-；
61- bundlees layer, 62- cable metallic screens band, 63- cable waterproof layer, 64- cable sheath.
Specific embodiment
With reference to the accompanying drawing and Detailed description of the invention and embodiment do further in detail technical solution provided by the utility model
It describes in detail bright.
It should be noted that following embodiment is illustrated with the docking of two sections of three-core cables, the docking of single-core cable with
Three-core cable is similar.
Embodiment
A kind of wrapped transition joint of cable, the docking for two sections of cables.
Such as Fig. 1 three-core cable structural schematic diagram in the prior art, two bursts of Fig. 2 docking schematic diagram institutes with mutually single-phase cable
Show:
Three-core cable in the prior art includes sheath 11, armouring 12, liner 13 from outside to inside, includes three strands in liner 13
Single-phase cable, tri- strands of single-phase cables of A, B, C as shown in Figure 1；Each single-phase cable of stock include from outside to inside metal screen layer 14,
Insulation screen 15, main insulating layer 16, internal shield (not shown) and conductor thread core 17.
Wrapped transition joint includes that each connector with mutually single-phase cable of connection is wrapped, each wrapped outer with mutually single-phase cable connector
Protection it is wrapped.
When two sections of three-core cable docking, sheath 11, armouring are successively stripped in two sections of cable socket certain positions respectively first
12, the metal screen layer 14 of liner 13 and the single-phase cable of each stock, insulation screen 15, main insulating layer 16, internal shield (figure
In do not show), expose and need the conductor thread core 17 that docks, it is then wrapped first by the same phase cable in two sections of cables by connector
Docked, respective A phase cable A and A ' are docked in two sections of three-core cables of first, second as shown in Figure 2, then by protection around
Packet carries out outer layer protection to all single-phase cables of docking, completes entire wrapped transition joint, realizes the docking of two sections of three-core cables.
As shown in Fig. 1~10, connector is wrapped to include:
Connect the aluminium hydraulic pressed connecting pipe 2 of each same phase cable conductor core 17；
The rubber material tapered stress cone 3 being set on each single-phase cable, on cable A single-phase in Fig. 3 and A '
Stress cone 3, wherein the semiconductive portion 31 of stress cone 3 is wrapped in insulation screen 15, and insulated end portions 32 are wrapped in main insulating layer
Outside 16；
At the metal screen layer 14 in 3 semiconductive portion of stress cone, 31 outside and 15 stripping of insulation screen, by semi-conductive tape
It is wrapped to be formed for fixing metal screen layer 14 and insulation screen 15, indicating the limited step 4 of relative position simultaneously；
The semiconductive belt 51 formed by semi-conductive tape around aluminium hydraulic pressed connecting pipe 2 and 17 exposed section of butting conductors core；
By insulating tape around 3 stress cone 3, main insulating layer 16 and stress cone semiconductives of two single-phase cables of docking
The insulating tape 52 formed on belt 51；
The ground shield layer 53 formed between two single-phase cable limited steps 4 of docking by semi-conductive tape；
The copper mesh layers 54 of half lap scarf joint mode wrapped formation outside ground shield layer 53,54 both ends of copper mesh layers are used by copper mesh band
It is fixed with phase cable constant force spring 55；
The single-phase cable metal mask tape 56 formed with phase cable ends metal screen layer 14 is docked by copper braiding band connection,
Single-phase 56 both ends of cable metal mask tape are fixed together with phase cable constant force spring 55 with copper mesh layers 54 respectively；
Use PVC with wrapped formation in copper mesh layers 54 and phase cable constant force spring 55 and between two phase cable constant force springs 55
Layer of PVC 57；
By water blocking tape, wrapped cover is formed outside above-mentioned layer of PVC 57, copper mesh layers 54 and the single-phase cable metal mask tape 56
Single-phase cable waterproof layer 58；
It protects and wrapped successively includes: from the inside to the outside
As shown in Figure 10, the wrapped bundle bundled of each single-phase cable of the wrapped production of connector will be completed with PVC band
Tie up layer 61；
By the respective armouring 12 of copper braiding two sections of three-core cables having connected of band connection and both ends cable constant force spring 55 '
The fixed cable metallic screens band 62 formed；
As shown in figure 11, to have connected cable around cable metallic screens band 62, armouring 12 and two sections by water blocking tape each
From part sheath 11 on the cable waterproof layer 63 that is formed；
As shown in figure 12, the cable sheath 64 formed outside cable waterproof layer 63 by armoring tape half lap scarf joint.
The production of the above-mentioned wrapped transition joint of cable, include cable connector pretreatment, single-phase cable conductor thread core connection,
With phase cable connector it is wrapped production, cable connector protection it is wrapped production and etc., comprising:
Cable connector pretreatment:
Sheath 11, armouring 12, liner 13 are successively stripped in two sections of cable socket certain positions, stripping length presses terraced distribution
Successively successively decrease since sheath, finally exposes three strands of single-phase cables, tri- strands of single-phase cables of A, B, C as shown in Figure 1；
Carry out the removing of metal screen layer 14, insulation screen 15 respectively to each single-phase cable, strip length is by step point
Cloth successively successively decreases since metal screen layer 14；
The stripping of pencil hair style is carried out to the main insulating layer 16 and internal shield (not shown) of package conductor thread core 17,
Expose cable conductors core 17.
Single-phase cable conductor thread core connection:
At the metal screen layer 14 of each single-phase cable and the stripping of insulation screen 15, wrapped semi-conductive tape is to metal screen
It covers layer 14 and insulation screen 15 is fixed and forms limited step 4；
Enter prefabricated rubber material tapered stress cone 3 from exposed 17 end cap of conductor thread core, wraps up its semiconductive portion 31
Insulation screen 15 and its insulated end portions 32 is wrapped in outside main insulating layer 16；
The conductor thread core 17 of the same phase cable connected is needed to crimp by two with aluminium hydraulic pressed connecting pipe 2.
With the wrapped production of phase cable connector:
Outside aluminium hydraulic pressed connecting pipe 2 and two sections of exposed butting conductors cores 17, wrapped semi-conductive tape forms semiconductive belt 51；
With insulating tape around 3 stress cone 3, main insulating layer 16 and stress cone semiconductives of two single-phase cables of docking
Insulating tape 52 is formed on belt 51；
Ground shield layer 53 is formed between two single-phase cable limited steps 4 of docking with semi-conductive tape；
Outside single-phase cable metal screen layer 14 and outside ground shield layer 53, using the wrapped one layer of copper mesh band of half lap scarf joint mode
Copper mesh 54 is formed, 54 both ends phase cable constant force spring 55 of copper mesh layers is fixed on single-phase cable metal screen layer 14；
Single-phase cable metal mask tape 56 is formed with phase cable ends metal screen layer 14 with bronze medal braiding band connection docking,
Single-phase 56 both ends of cable metal mask tape are fixed together with phase cable constant force spring 55 with copper mesh layers 54 respectively；
Use PVC with wrapped formation PVC in copper mesh layers 54 and phase cable constant force spring 55 and between two phase cable constant force springs 55
Layer 57, it is wrapped to another from one end that layer of PVC must ensure to cover all copper mesh band and single-phase 55 flash of cable constant force spring, PVC band
When one end, without overlap joint at two sections of cable intermediate joints, but fixed copper mesh belt 2~3 is needed；
With water blocking tape, wrapped covering forms list outside above-mentioned layer of PVC 57, copper mesh layers 54 and single-phase cable metal mask tape 56
Phase cable waterproof layer 58.
Cable connector protects wrapped production:
It is bundled with PVC band by each single-phase cable that the wrapped production of connector is completed is wrapped, forms binding layer 61；
The respective armouring 12 of two sections of three-core cables having connected of band connection, and both ends cable constant force spring are woven with copper
55 ' is fixed, forms cable metallic screens band 62；
The respective part sheath of cable is had connected around cable metallic screens band 62, armouring 12 and two sections with water blocking tape
On 11, cable waterproof layer 63 is formed；
With armoring tape half lap scarf joint outside cable waterproof layer 63, cable sheath 64 is formed.
In summary:
The utility model provides a kind of wrapped transition joint of cable docked for two Duan Sanxin or single-core cable, including
The connector for connecting each single-phase cable is wrapped, the wrapped outer protection of all connectors is wrapped；
Wrapped connector includes connection with the aluminium hydraulic pressed connecting pipe of phase cable conductor core, the stress cone being sleeved on cable, coiling
It is limited step, semiconductive belt, insulating tape, ground shield layer, copper mesh layers, single-phase cable metal mask tape, layer of PVC, single-phase
Cable waterproof layer；
Protect wrapped successively includes binding layer, cable metallic screens band, cable waterproof layer, cable sheath from the inside to the outside；
By wrapped transition joint provided by the utility model, can achieve the connection of cable conductor core is good, insulation can
Lean on, good seal performance, high mechanical strength, the purpose that structure is simple, easy to manufacture and install, can guarantee cable operation safety and
Steadily, and preferable economic benefit is obtained, thus, great application value.
Finally, it is necessary to explanations:
Above content is only used for helping to illustrate and understand the technical solution of the utility model, should not be understood as the limit to it
System；It is practical to belong to this for the non-intrinsically safe modifications and adaptations or replacement that those skilled in the art are made according to the content of the present specification
Novel range claimed.
Claims (1)
1. a kind of wrapped transition joint of cable, the docking for two Duan Sanxin or single-core cable；
The cable includes sheath and armouring or sheath and armouring and liner from outside to inside, sheath and armouring or sheath and armouring
And comprising sub-thread or the single-phase cable of multiply in liner, each single-phase cable of stock includes metal screen layer, insulation shielding from outside to inside
Layer, main insulating layer, internal shield and conductor thread core；
The wrapped transition joint include connect each single-phase cable connector is wrapped, the wrapped outer protection of all connectors is wrapped；
When two sections of cable buttings, first respectively in two sections of cable socket certain positions, successively strip sheath and armouring or sheath and
Armouring and liner, then metal screen layer, insulation screen, main insulating layer, the internal shield of the single-phase cable of each stock are successively stripped,
The conductor thread core for needing to dock is exposed, then first mutually wants the single-phase cable of each stock in two sections of cables by same by the way that connector is wrapped
Ask and docked, then by protecting the wrapped single-phase cable to all docking to carry out outer layer protection, complete it is entire it is wrapped in indirectly
Head realizes the docking of two sections of cables, it is characterised in that:
The connector is wrapped to include:
Connect the aluminium hydraulic pressed connecting pipe with phase cable conductor core；
It is set on each single-phase cable, its semiconductive portion is wrapped in insulation screen and its insulated end portions is wrapped in major insulation
Rubber material tapered stress cone outside layer；
Metal screen layer on the outside of stress cone major part is formed at insulation screen stripping, by semi-conductive tape is wrapped for fixing
Metal screen layer and insulation screen indicate the limited step of relative position simultaneously；
The semiconductive belt formed by semi-conductive tape around aluminium hydraulic pressed connecting pipe and butting conductors core exposed section；
By insulating tape since the insulated end portions of a stress cone in two sections of single-phase cables having connected to another stress cone
Insulated end portions terminate the insulating tape of wrapped formation；
The ground shield layer formed between the limited step of two single-phase cables of docking by semi-conductive tape；
The copper mesh layers of half lap scarf joint mode wrapped formation outside ground shield layer are used by copper mesh band, phase cable is used at copper mesh layers both ends respectively
Constant force spring is fixed；
The single-phase cable metal mask tape that single-phase cable ends metal screen layer is formed, single-phase cable are docked by copper braiding band connection
Metal mask tape both ends are fixed together with phase cable constant force spring with copper mesh layers respectively；
Layer of PVC of the PVC with wrapped formation is used in copper mesh layers and phase cable constant force spring and between two phase cable constant force springs；
By water blocking tape, the wrapped single-phase cable formed that covers is prevented outside above-mentioned layer of PVC, copper mesh layers and single-phase cable metal mask tape
Water layer；
The protection is wrapped successively to include: from the inside to the outside
The wrapped binding layer bundled of each single-phase cable that the wrapped production of connector will be completed with PVC band；
Two sections of band connection, which are woven, by copper has connected the cable electricity that respectively armouring and both ends are fixed to be formed with cable constant force spring respectively
Cable metal mask tape；
The electricity that cable is respectively formed on the sheath of part is had connected around cable metallic screens band, armouring and two sections by water blocking tape
Cable waterproof layer；
The cable sheath formed outside cable waterproof layer by armoring tape half lap scarf joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821531086.0U CN208849434U (en) | 2018-09-19 | 2018-09-19 | A kind of wrapped transition joint of cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821531086.0U CN208849434U (en) | 2018-09-19 | 2018-09-19 | A kind of wrapped transition joint of cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208849434U true CN208849434U (en) | 2019-05-10 |
Family
ID=66372095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821531086.0U Active CN208849434U (en) | 2018-09-19 | 2018-09-19 | A kind of wrapped transition joint of cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN208849434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245022A (en) * | 2018-09-19 | 2019-01-18 | 吉唯达(上海)电气有限公司 | A kind of wrapped transition joint of cable and its manufacture craft |
| CN114156674A (en) * | 2021-11-01 | 2022-03-08 | 广西电网有限责任公司南宁供电局 | Switching station bypass system primary and secondary head of working a telephone switchboard fast |
-
2018
- 2018-09-19 CN CN201821531086.0U patent/CN208849434U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245022A (en) * | 2018-09-19 | 2019-01-18 | 吉唯达(上海)电气有限公司 | A kind of wrapped transition joint of cable and its manufacture craft |
| CN114156674A (en) * | 2021-11-01 | 2022-03-08 | 广西电网有限责任公司南宁供电局 | Switching station bypass system primary and secondary head of working a telephone switchboard fast |
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