CN2912055Y - Damp-proofing power cable union - Google Patents
Damp-proofing power cable union Download PDFInfo
- Publication number
- CN2912055Y CN2912055Y CN 200620033708 CN200620033708U CN2912055Y CN 2912055 Y CN2912055 Y CN 2912055Y CN 200620033708 CN200620033708 CN 200620033708 CN 200620033708 U CN200620033708 U CN 200620033708U CN 2912055 Y CN2912055 Y CN 2912055Y
- Authority
- CN
- China
- Prior art keywords
- power cable
- neck bush
- thermal contraction
- joint
- damp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model relates to a dampproof power cable intermediate joint, which comprises two power cables, a joint body connected with the two power cables, a neck bush positioned on the joint body and a section of the two power cables, with a filling port, a heat shrinking sleeve on the neck bush, the both ends are connected closely with the power cable, as well as an insulation moisture proof agent layer in the clearance between the neck bush and the joint body and the power cable. The utility model can form a dual external protective layer to prevent moisture from entering intermediate joint of the power cable effectively; the utility model has the advantages of compact, simple structure, being easy to operate, excellent damp-proof performance, and is especially applicable to intermediate joint of the power cable up to 110kv.
Description
Technical field
The utility model relates to cable fitting, the transition joint of particularly a kind of damp-proof power cable.Be applicable to 110kV and following power cable transition joint employing.It is the improvement of prior art.
Background technology
In the prior art, 110kV and following power cable transition joint, mainly comprise 2 power cables and the joint body that connects 2 power cables, for preventing that moisture from entering, general fiberglass overcoat and the asphalt reperfusion layer combining structure that adopts on a section that is socketed in joint body and 2 power cables realizes the transition joint sealing.But after adopting this method, the glass fiber reinforced plastic external guard cover is difficult to positiver sealing with transition joint two end cables, and asphalt material layer in the fiberglass in hot season, when ambient temperature is higher, softening trickling phenomenon occurs easily, influences the humidity resistance of transition joint; In cold season, when temperature is low, pitch meeting hardening embrittlement, overcoat shock resistance variation, pitch is thrown off from transition joint two ends cable jacket sealing surface easily, causes moisture to enter transition joint inside, and causes that the joint breakdown accident usually takes place.
Summary of the invention
The purpose of this utility model is intended to overcome above-mentioned deficiency of the prior art, by neck bush and thermal contraction casing tube and the insulation moisture resisting agent layer between the gap of neck bush and joint body and power cable are set outside joint body and power cable one section, thereby provide a kind of effective prevention moisture to enter the damp-proof power cable transition joint of power cable transition joint.
Technical solution of the present utility model is: the transition joint of a kind of damp-proof power cable, comprise: 2 power cables, the joint body that connects 2 power cables, its feature part is also to comprise: be socketed on described joint body (5) and 2 power cables (8) one section, the neck bush (2) that embedding mouth (11) are arranged, be socketed on the neck bush (2), the embedding mouth (12) corresponding with embedding mouth (11) position arranged, the thermal contraction casing tube (1) that two ends are connected with power cable (8) tight seal, and be arranged at insulation moisture resisting agent layer (3) between the gap of neck bush (2) and joint body (5) and power cable (8).
In the technical solution of the present utility model: described neck bush (2) can be rolled into tubular and constitute for the sheet material that two ends are rectangular dentalation.
In the technical solution of the present utility model: described neck bush (2) can also constitute for two ends are 2 sheet materials fastenings of rectangular dentalation and are rolled into tubular.
In the technical solution of the present utility model: the inner surface of described thermal contraction casing tube (1) can also have hot melt adhesive layer (10).
In the technical solution of the present utility model: described thermal contraction casing tube (1) can be rolled into tubular for the thermal contraction slice material, its two ends connect and compose by locking link slot (4) clamping.
In the technical solution of the present utility model: described thermal contraction casing tube (1) can be a single layer structure pyrocondensation sheet, also can be the reinforced pyrocondensation sheet of multilayer; Individual layer pyrocondensation sheet material is an irradiated crosslinked polyalkene; Adventitia is an irradiated crosslinked polyalkene in the reinforced pyrocondensation sheet of multilayer, and the intermediate layer is reinforced thermal contraction net.Thermal contraction casing tube (1) inwall can scribble hot melt adhesive layer (10), and PUR can be the EVA type, also can be the polyamide type.
In the technical solution of the present utility model: described neck bush (2) two ends are that rectangular dentalation can match with the power cable of different-diameter, neck bush (2) can adopt metal or non-metallic sheet processing, material thickness is between 0.5mm～3.0mm, and the best is the thick aluminium matter neck bush of 1.2mm.It is embedding mouth (11) between 10mm～100mm that neck bush (2) flat segments both ends and middle part can have 3 or above diameter, is embedding mouth (11) that to offer 3 diameters be 40mm preferably.
The insulation moisture resisting agent of described insulation moisture resisting agent layer (3) solidify to form through reaction after being mixed by the two-component insulating fluent material.
Described power cable transition joint can be 110kv, also can be that 110kv is following.
Compared with prior art, the utlity model has following characteristics:
(1) adopts the utility model, neck bush and thermal contraction casing tube and the insulation moisture resisting agent layer between the gap of neck bush and joint body and power cable are set outside joint body and power cable one section; After the heat hot shrink sleeve, its middle part is contracted on the neck bush, two ends are contracted on the power cable (oversheath), form tight seal (particularly after the heat shrinking sleeve pipe internal surface hot melt adhesive layer heat fused) with power cable (oversheath), the dual external protection coating of formation can effectively stop moisture to enter the power cable transition joint;
(2) thermal contraction casing tube of Cai Yonging has the heat shrink characteristic, same specification thermal contraction casing tube can adapt to the power cable of different-diameter size, be tightly connected with power cable (oversheath) after its surperficial hot melt adhesive layer heat fused, can prevent effectively that moisture from entering the power cable transition joint; The insulation moisture resisting agent layer that adopts, in-40～70 ℃, material mechanical performance is stable, and the power cable transition joint position after the installation has excellent sealing moisture resistance and pliability, can make things convenient for the appropriate crooked of cable and move;
(3) compact conformation is simple, easy to operate, humidity resistance is excellent.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is the right TV structure schematic diagram of Fig. 1;
Fig. 3 is a neck bush deployed configuration schematic diagram among Fig. 1;
Fig. 4 is a thermal contraction casing tube deployed configuration schematic diagram among Fig. 1.
Among the figure: 1-thermal contraction casing tube, 2-neck bush, 3-insulation moisture resisting agent layer, 4-locking link slot, 5-joint body, 6-difference card, 7-ground wire cable, 8-power cable, 9-cable core, 10 hot melt adhesive layers, 11-embedding mouth, 12-embedding mouth.
Embodiment
The utility model is described in further detail below by embodiment:
Embodiment 1:
The transition joint of a kind of damp-proof power cable, mainly by 2 power cables 8, the joint body 5 that connects 2 power cables 8, be socketed in one section neck bush 2 of going up, embedding mouth 11 being arranged of joint body 5 and 2 power cables 8, the thermal contraction casing tube 1 that is socketed on the neck bush 2, has the embedding mouth 12 corresponding, two ends to be connected with power cable 8 tight seals with embedding mouth 11 positions, and the insulation moisture resisting agent layer 3 that is arranged between the gap of neck bush 2 and joint body 5 and power cable 8 constitutes;
Described neck bush 2 is rolled into the tubular formation for the sheet material that two ends are rectangular dentalation;
The inner surface of described thermal contraction casing tube 1 has hot melt adhesive layer 10;
Described thermal contraction casing tube 1 is rolled into tubular, its two ends by the thermal contraction sheet material and clamps by locking link slot 4 and connect and compose.
The present embodiment processing method can be: in power cable transition joint site operation process, after joint body 5 installations, neck bush 2 is installed on transition joint 5 and the two ends power cable 8 thereof (oversheath), neck bush 2 end teeth tighten up with powerful adhesive tape, its end is tightened up on power cable 8 (oversheath) surface, and forming two ends is that conical middle part is columniform embedding container.On neck bush 2, put thermal contraction casing tube 1, locking is installed links groove 4, at thermal contraction casing tube 1 place of transition joint ground wire cable 7 exits, insert difference card 6, after heat hot shrink sleeve 1 is shunk, itself and power cable 8 are combined closely.After treating thermal contraction casing tube 1 cooling, insulation moisture resisting agent poured into and be full of container (being neck bush 2 and the gap of joint body 5 and power cable 8) along embedding mouth 12 and 11 form insulation moisture resisting agent layer 3, on-the-spot embedding.Insulation moisture resisting agent solidify to form high strength, elastomeric solid material from liquid condition through certain hour, solidify back insulation moisture resisting agent and joint body 5, power cable 8 (oversheath) surface very strong adhesion is arranged, at the whole positiver sealing layer of the outer formation of power cable transition joint, efficiently solve transition joint moisture in running and enter a difficult problem.
The utility model is not limited to the foregoing description, and the utility model content is described all can implement and have described good result.
Claims (6)
1, the transition joint of a kind of damp-proof power cable, comprise: 2 power cables, the joint body that connects 2 power cables, it is characterized in that also comprising: be socketed on described joint body (5) and 2 power cables (8) one section, the neck bush (2) that embedding mouth (11) are arranged, be socketed on the neck bush (2), the embedding mouth (12) corresponding with embedding mouth (11) position arranged, the thermal contraction casing tube (1) that two ends are connected with power cable (8) tight seal, and be arranged at insulation moisture resisting agent layer (3) between the gap of neck bush (2) and joint body (5) and power cable (8).
2, by the transition joint of the described damp-proof power cable of claim 1, it is characterized in that: described neck bush (2) is rolled into the tubular formation for the sheet material that two ends are rectangular dentalation.
3, by the transition joint of the described damp-proof power cable of claim 1, it is characterized in that: described neck bush (2) fastens and is rolled into the tubular formation for 2 sheet materials that two ends are rectangular dentalation.
4, by claim 1,2 or 3 described damp-proof power cable transition joints, it is characterized in that: the inner surface of described thermal contraction casing tube (1) has hot melt adhesive layer (10).
5, by claim 1,2 or 3 described damp-proof power cable transition joints, it is characterized in that: described thermal contraction casing tube (1) is for the thermal contraction sheet material is rolled into tubular, its two ends connect and compose by locking link slot (4) clamping.
6, by the transition joint of the described damp-proof power cable of claim 4, it is characterized in that: described thermal contraction casing tube (1) is for the thermal contraction sheet material is rolled into tubular, its two ends connect and compose by locking link slot (4) clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033708 CN2912055Y (en) | 2006-04-04 | 2006-04-04 | Damp-proofing power cable union |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033708 CN2912055Y (en) | 2006-04-04 | 2006-04-04 | Damp-proofing power cable union |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2912055Y true CN2912055Y (en) | 2007-06-13 |
Family
ID=38133919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620033708 Expired - Fee Related CN2912055Y (en) | 2006-04-04 | 2006-04-04 | Damp-proofing power cable union |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2912055Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022955A (en) * | 2012-11-30 | 2013-04-03 | 江苏澳能电力电缆附件有限公司 | Intermediate joint of high-voltage cables |
| CN104836169A (en) * | 2015-04-30 | 2015-08-12 | 应德华 | Dirt-proof sleeve used for protecting vehicle line joint |
-
2006
- 2006-04-04 CN CN 200620033708 patent/CN2912055Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022955A (en) * | 2012-11-30 | 2013-04-03 | 江苏澳能电力电缆附件有限公司 | Intermediate joint of high-voltage cables |
| CN104836169A (en) * | 2015-04-30 | 2015-08-12 | 应德华 | Dirt-proof sleeve used for protecting vehicle line joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1220839C (en) | Method of sealing a joint between two pipes | |
| AU684261B2 (en) | Cable joint | |
| CN111356731A (en) | Coated closed cell foam pipe insulation and method of producing same | |
| AU2001234836B2 (en) | Apparatus for forming field joints on plastic coated pipe | |
| FR2557671A1 (en) | IMPROVEMENTS IN MEANS OF THERMAL INSULATION OF PIPING SYSTEMS SUBJECTED TO THERMAL, HYDROSTATIC AND MECHANICAL CONSTRAINTS AND THEIR INSTALLATION AND METHODS OF MAKING SAID MEANS OF ISOLATION | |
| US4252849A (en) | Heat shrinkable covers | |
| CN2874880Y (en) | Middle joint welding fitting for 66KV-500KV crosslink polyvinyl insulation power cable | |
| AU2001234836A1 (en) | Apparatus for forming field joints on plastic coated pipe | |
| BRPI0710063A2 (en) | insulated pipe joint | |
| CN2912055Y (en) | Damp-proofing power cable union | |
| US10109947B2 (en) | System and method for sealing electrical terminals | |
| EP2092611B1 (en) | Product and method for wire seal | |
| CN2384351Y (en) | Thermal contraction and thermal melt composite double-wall pipe | |
| CN105655964A (en) | Glue pouring type insulating sealing butt joint method for underwater cable connection | |
| WO2015147677A1 (en) | Method for anti-fire insulation and thermal insulation of welded joints of pre-insulated pipes during above-ground pipeline laying | |
| CN210978982U (en) | Novel prefabricated joint heat preservation oversleeve of glass fiber | |
| CN201884808U (en) | Wrapping tape | |
| CN2646922Y (en) | Thermal shrinkable casing pipe for cable splice | |
| CN217240221U (en) | Steel-plastic composite cable sheath pipe and connecting structure thereof | |
| CA2942813A1 (en) | Method for thermally insulating welded joints for pre-insulated pipes | |
| CN215928842U (en) | Protective heat-insulating structure for heat-insulating pipeline joint | |
| CN206461337U (en) | A kind of three layers of screening accessory of cable mid head | |
| JP4119225B2 (en) | Riser pipe for gas meter connection | |
| CN204681062U (en) | A kind of prefabricated lute in cold shrink sleeve | |
| CN112901910A (en) | Protective heat-insulating structure for heat-insulating pipeline joint and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 |