CN209313405U - The construction of cable restores formula and monitors transition joint on-line - Google Patents
The construction of cable restores formula and monitors transition joint on-line Download PDFInfo
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- CN209313405U CN209313405U CN201821963436.0U CN201821963436U CN209313405U CN 209313405 U CN209313405 U CN 209313405U CN 201821963436 U CN201821963436 U CN 201821963436U CN 209313405 U CN209313405 U CN 209313405U
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- cable
- insulating layer
- internal shield
- conductor
- external shielding
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Abstract
A kind of construction of cable recovery formula on-line monitoring transition joint, including the first cable and the second cable being mutually butted；First cable has the first conductor, the first internal shield, the first insulating layer and the first external shielding layer, which has the first naked section towards one end of second cable；Second cable has the second conductor, the second internal shield, second insulating layer and the second external shielding layer, which has the second naked section towards one end of first cable；The end face of first naked section and the second naked section is fixed together by exothermic weld, and first naked section and the second naked section are successively coated with third internal shield, third insulating layer and third external shielding layer from inside to outside；First conductor and the second conductor diameter are identical, and first internal shield, the second internal shield are identical with third internal shield outer diameter, and first insulating layer, second insulating layer are identical with third insulating layer outer diameter.The utility model machinery and good seal performance.
Description
Technical field
The utility model belongs to electrical facility technical field, and especially a kind of construction of cable restores in formula on-line monitoring indirectly
Head.
Background technique
The connection of cable intermediate joint is always a hard nut to crack of power industry in transmission line of electricity, and cable fault is more
The junction between cable and cable is betided, that is, the cable intermediate joint often said, since cable intermediate joint makes work
Skill is unqualified, and insulation performance not enough will lead to cable connector and break down；If cable intermediate joint sealing performance is bad, can lead
Cause cable intermediate joint dampness, insulation breakdown.Conductor is crimped using metal sleeve, and wedge angle burr generates the meeting of active interface stress cone
Damage to insulation generates explosion.At present in the cable between connector, majority using cable accessory (thermal shrinkage type cable accessory, cold-shrink type electricity
Cable fittings) and conductor using metal sleeve crimp.
The shortcomings that thermal shrinkage type cable accessory: needs get angry, are not suitable for some installation environments that cannot have open fire；Cable is opened
Stripping size is long, and required installation space is big；Electric field controls use parametric method stress tube, and insulating layer and stress tube are layered, move or curved
The danger of accessory internal interlayer disengagement is easy to appear when bent, and stress tube failure, local leakage current afterwards easy to aging is big, at present state
Inside no longer use substantially.
The shortcomings that cold-shrink type (prefabricated) cable accessory: being fitted manner between cable, and Insulation Material used is silicon rubber
Or ethylene propylene diene rubber is made, and is two media with cable insulating material, so interface can be generated, insulator interface is often that electric field is easy
The place of change, once having impurity, air gap etc., insulation performance can be remarkably decreased, the weakest link to insulate at cable accessory；
Chilling shrink type cable accessory is under the high-tension state, it is therefore necessary to be guaranteed within storage period, cold events formula component not Ying Youming
Aobvious permanent deformation or elastic stress relaxation, it cannot be guaranteed that there is enough elastic compression power after being otherwise mounted on cable, from
And it cannot be guaranteed good interfacial characteristics.
Above-mentioned cable intermediate joint belongs to traditional handicraft, often occur poor joint mechanical performance, poor sealing, vulnerable to
Tide, the easily FAQs such as fever and failure rate height, crisis operation power safety, solve the problems, such as that this is very urgent.
Utility model content
Formula, which to be restored, the purpose of the utility model is to provide a kind of construction of cable monitors transition joint on-line, structure is simple,
Easy to operate, mechanical performance and good seal performance are not easy to generate heat and make moist.
To achieve the above object, the utility model takes following technical scheme:
A kind of construction of cable recovery formula on-line monitoring transition joint, including the first cable and the second cable being mutually butted；
First cable have the first conductor, first conductor be successively coated with from inside to outside the first internal shield, the first insulating layer and
First external shielding layer, first conductor have the first naked section towards one end of second cable；Second cable has second
Conductor, second conductor are successively coated with the second internal shield, second insulating layer and the second external shielding layer from inside to outside, this second
Conductor has the second naked section towards one end of first cable；The end face of first naked section and the second naked section passes through heat release
It is welded and fixed together, it is exhausted that first naked section and the second naked section are successively coated with third internal shield, third from inside to outside
Edge layer and third external shielding layer；The diameter of first conductor and the second conductor is identical, first internal shield, the second internal shield
Identical with the outer diameter of third internal shield, first insulating layer, second insulating layer are identical with the outer diameter of third insulating layer.
Further, the material of first conductor and the second conductor is identical, first internal shield, the second inner shield
Layer is identical with the material of third internal shield, and first insulating layer, second insulating layer are identical with the material of third insulating layer, institute
It is identical with the material of third external shielding layer to state the first external shielding layer, the second external shielding layer.
Further, first internal shield, the second internal shield and third internal shield mutually melt together, and described
One insulating layer, second insulating layer and third insulating layer mutually melt together, first external shielding layer, the second external shielding layer and third
External shielding layer mutually melts together.
Further, first external shielding layer, the second external shielding layer and third external shielding layer wind matcoveredn, the guarantor
Sheath is coated with protective shell.The protective layer includes the heat-shrink tube of adhesive waterproof tape and its outside；The protective shell is armor band.
Further, on-line monitoring system terminal is equipped in the protective shell.
The beneficial effects of the utility model are: the utility model is by regenerating the construction of cable, it step by step will be electric
Cable is restored to new cable state, and transmission line malfunction frequency caused by cable intermediate joint can be greatly lowered, and thoroughly solves
The root problem of the active interface generated is equipped between cable accessory and cable insulation, it is higher to provide one kind for cable system
The cabling techniques of electric stability and security reliability have filled up the blank in International Power cable accessory industry.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model construction of cable restores formula on-line monitoring transition joint.
Fig. 2 is the structure for the on-line monitoring system terminal that the utility model construction of cable restores formula on-line monitoring transition joint
Schematic diagram.
Fig. 3 is the flow diagram for the construction technology that the utility model construction of cable restores formula on-line monitoring transition joint.
Specific embodiment
In order to which the technical solution of the utility model and beneficial effect is more clearly understood, with reference to embodiments with it is attached
Figure, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, the utility model provides a kind of construction of cable recovery formula on-line monitoring transition joint, including mutually right
The first cable 1 and the second cable 2 connect.First cable 1 has the first conductor 11, which successively wraps from inside to outside
It is covered with the first internal shield 12, the first insulating layer 13 and the first external shielding layer 14, first conductor 11 is towards second cable 2
One end has the first naked section 111.Second cable 2 has the second conductor 21, which successively coats from inside to outside
There are the second internal shield 22, second insulating layer 23 and the second external shielding layer 24, second conductor 21 is towards the one of first cable 1
End has the second naked section 211.The end face of first naked section 111 and the second naked section 211 is fixed on one by exothermic weld
It rises, first naked section 111 and the second naked section 211 are successively coated with third internal shield 31, third insulating layer from inside to outside
32 and third external shielding layer 33.First conductor 11 is identical with the diameter of the second conductor 21, in first internal shield 12, second
Shielded layer 22 is identical with the outer diameter of third internal shield 31, first insulating layer 13, second insulating layer 23 and third insulating layer 32
Outer diameter it is identical, so that its solid core is blocked water, isometrical impulse- free robustness, mechanical strength and current-carrying are equal to cable.
Specifically, first conductor 11 is identical with the material of the second conductor 21, screen in first internal shield 12, second
Cover that layer 22 is identical with the material of third internal shield 31, first insulating layer 13, second insulating layer 23 and third insulating layer 32
Material is identical, and first external shielding layer 14, the second external shielding layer 24 are identical with the material of third external shielding layer 33.The first interior screen
Cover layer 12, the second internal shield 22 mutually melts together with third internal shield 31, first insulating layer 13,23 and of second insulating layer
32 phase of third insulating layer is melted together, and first external shielding layer 14, the second external shielding layer 24 mutually melt with third external shielding layer 33
Together.
In order to preferably protect cable, first external shielding layer 14, the second external shielding layer 24 and third external shielding layer 33 are twined
Around matcoveredn, which is coated with protective shell.The protective layer includes the heat-shrink tube of adhesive waterproof tape and its outside, pyrocondensation
Pipe plays a protective role, and adhesive waterproof tape will not expose contact ozone；The protective shell is armor band.Further, as shown in Fig. 2,
It is equipped with on-line monitoring system terminal 4 in the protective shell, can periodically report temperature data to backstage, temperature beyond limit or temperature rise
Realtime Alerts when too fast push warning information by cell phone application, pass through backstage or APP enquiry of historical data.On-line monitoring system
The characteristics of terminal 4 is without relaying, and without wiring, installation is simple；Using NB-IoT wireless technology, transmission is reliable；Continuous sampling
Monitoring sets periodic report result；Super low-power consumption, battery can be used continuously 8 years；IP68 degree of protection, highest level waterproof are anti-
Dirt；Backstage and APP graphic interface, it is easy to use.When installation, with garter spring by the temperature probe pressure of on-line monitoring system terminal 4
It fastens in cable connector central location, it is ensured that accurately measure the temperature of cable connector；" the two of extension are compressed with two garter springs
On-line monitoring system terminal 4 is clamped securely on cable by the wing ".After system puts into operation, O&M service personnel can lead at any time
It crosses cell phone application or logs in background query temperature data and receive Realtime Alerts information.
As shown in figure 3, the utility model also provides a kind of construction work of construction of cable recovery formula on-line monitoring transition joint
Skill, including the following steps:
Before construction, in pencil head, reveal the first cable successively polishing at the first cable and the second cable connector
First conductor, the first internal shield, the first insulating layer, the first external shielding layer out make the second cable successively expose the second conductor,
Two internal shields, second insulating layer, the second external shielding layer；
First cable 1 and the second cable 2 are docked, the first naked section 111 and second conductor 21 of the first conductor 11 are made
The end face of second naked section 211 is opposite and reserves welded gaps, installs in the middle part of the first naked section 111 and the second naked section 211
Cooling device；Exothermic weld is carried out using end face of the exothermic reaction weldering mould to the first naked section 111 and the second naked section 211, together
Shi Qidong cooling device makes the temperature of the first cable 1 and the second side of the cable 2 far from the welded gaps lower than 80 degree；By first
Solder joint between naked section 111 and the second naked section 211 is polishing to diameter and 21 diameter phase of first conductor 11 and the second conductor
Together；
Clean shed is installed, the first cable 1 and the second cable 2 are cleaned in clean shed, and in the first naked section 111 and second
Exposed 211 outside is installed by dust guard；Mounting tool mold and extruder make semiconductor material in third by extruder
Shielded layer 31 is simultaneously molded into and is coated on 211 periphery of the first naked section 111 and the second naked section, and with the first internal shield 12 and second
22 phase of internal shield is melted, and room temperature is naturally cooled to；31 surface of third internal shield is subjected to smooth treatment and makes its outer diameter and the
One internal shield 12 is identical with the outer diameter of the second internal shield 22；
Insulating materials is made third insulating layer 32 and be molded by extruder and is coated on 31 periphery of third internal shield, and
Melt with the first insulating layer 13 and 23 phase of second insulating layer, naturally cools to room temperature；Carrying out processing to third insulating layer 32 makes outside it
Diameter is identical as the outer diameter of the first insulating layer 13 and second insulating layer 23；
Semiconductor material is made third external shielding layer 33 and is molded by extruder and is coated on 32 periphery of third insulating layer,
And melt with the first external shielding layer 14 and 24 phase of the second external shielding layer, naturally cool to room temperature.
Specifically, first conductor 11 and the second conductor 21 are copper wire, the reactant of the exothermic weld be copper oxide with
Aluminium, high-temperature liquid state copper the first conductor 11 of progress generated by the heat and displacement reaction of exothermic reaction and the second conductor 21 melt
It connects.It wrapped copper mesh band and is fixed with constant force spring outside the third external shielding layer 33；Adhesive waterproof tape is wound simultaneously outside copper mesh band
Heat-shrink tube is installed outside adhesive waterproof tape, the wrapped armor band outside the heat-shrink tube.
It is identical using cable body that the utility model construction of cable, which restores formula on-line monitoring transition joint core concept,
Material successively restores each functional layer of cable by heating and welder, and " simulation is extensive no longer as traditional jointing technology
It is multiple " cable script structure, but almost former ratio has made one section " regeneration cable " at the scene, advantage is: electricity inside connector
Field is uniform, no electric stress；Connector mutually melts completely with cable material, gapless, and partial discharge is minimum；Conductor, insulation, semiconductive are all real
Core welding, is not entirely dependent on external waterproof, and connector can be segmented waterproofing protection to cable；Connector does not influence current-carrying capacity at all, gathers around
There is the mechanically and electrically performance that same cable is the same；Failure rate is extremely low, can save the additional investment of connector fire prevention aspect.This is practical
It is not attachment that novel cable structure restoration formula, which monitors transition joint on-line, is the prototype structure according to cable, by producing cable
Manufacture craft realize cable and cable connection, be mainly reflected in unstressed cone, non-activity interface melts combination；Joint
Conductor, internal shield, insulating layer and external shielding layer are entirely to restore ontology according to the original structure of cable, avoid the retraction of cable
And caused by leading to the problem of air gap, active interface since material is different between attachment and cable, make at cable connector
It is formd with former cable body as complete cable without the concept of connector, field distribution and electric stability consistent
General character thoroughly solves the root problem for being equipped with the active interface generated between cable accessory and cable insulation, solves cable
The stable cabling techniques problem with security reliability of electric property in operating system.
The above descriptions are merely preferred embodiments of the present invention, not makees to the structure of the utility model any
Formal limitation.It is any simple modification made by the above technical examples according to the technical essence of the present invention, equivalent
Variation and modification, in the range of still falling within the technical solution of the utility model.
Claims (4)
1. a kind of construction of cable, which restores formula, monitors transition joint on-line, which is characterized in that including the first cable for being mutually butted and
Second cable；First cable has the first conductor, which is successively coated with the first internal shield, first from inside to outside
Insulating layer and the first external shielding layer, first conductor have the first naked section towards one end of second cable；Second cable
With the second conductor, which is successively coated with the second internal shield, second insulating layer and the second external shield from inside to outside
Layer, second conductor have the second naked section towards one end of first cable；The end of first naked section and the second naked section
Face is fixed together by exothermic weld, and first naked section and the second naked section are successively coated with third inner shield from inside to outside
Layer, third insulating layer and third external shielding layer；The diameter of first conductor and the second conductor is identical, first internal shield,
Two internal shields are identical with the outer diameter of third internal shield, the outer diameter of first insulating layer, second insulating layer and third insulating layer
It is identical；First external shielding layer, the second external shielding layer and third external shielding layer wind matcoveredn, which is coated with
Protective shell；On-line monitoring system terminal is equipped in the protective shell, the both wings of the temperature probe of the on-line monitoring system terminal are logical
It crosses garter spring and is pressed abd fixed on the first cable and the second cable connector central location.
2. the construction of cable according to claim 1, which restores formula, monitors transition joint on-line, it is characterised in that: described first leads
The material of body and the second conductor is identical, and first internal shield, the second internal shield are identical with the material of third internal shield,
First insulating layer, second insulating layer are identical with the material of third insulating layer, first external shielding layer, the second external shielding layer
It is identical with the material of third external shielding layer.
3. the construction of cable according to claim 1 or 2, which restores formula, monitors transition joint on-line, it is characterised in that: described the
One internal shield, the second internal shield and third internal shield mutually melt together, first insulating layer, second insulating layer and
Three insulating layers mutually melt together, and first external shielding layer, the second external shielding layer mutually melt together with third external shielding layer.
4. the construction of cable according to claim 1, which restores formula, monitors transition joint on-line, it is characterised in that: the protective layer
Heat-shrink tube including adhesive waterproof tape and its outside；The protective shell is armor band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821963436.0U CN209313405U (en) | 2018-11-27 | 2018-11-27 | The construction of cable restores formula and monitors transition joint on-line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821963436.0U CN209313405U (en) | 2018-11-27 | 2018-11-27 | The construction of cable restores formula and monitors transition joint on-line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209313405U true CN209313405U (en) | 2019-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821963436.0U Expired - Fee Related CN209313405U (en) | 2018-11-27 | 2018-11-27 | The construction of cable restores formula and monitors transition joint on-line |
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| CN (1) | CN209313405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347053A (en) * | 2018-11-27 | 2019-02-15 | 北京世普巨龙通信科技有限公司 | The construction of cable restores formula on-line monitoring transition joint and its construction technology |
-
2018
- 2018-11-27 CN CN201821963436.0U patent/CN209313405U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347053A (en) * | 2018-11-27 | 2019-02-15 | 北京世普巨龙通信科技有限公司 | The construction of cable restores formula on-line monitoring transition joint and its construction technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190827 Termination date: 20201127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |