CN203850015U - Superhigh-voltage and ultrahigh-voltage crosslinked voltage flexible joint - Google Patents
Superhigh-voltage and ultrahigh-voltage crosslinked voltage flexible joint Download PDFInfo
- Publication number
- CN203850015U CN203850015U CN201420141537.5U CN201420141537U CN203850015U CN 203850015 U CN203850015 U CN 203850015U CN 201420141537 U CN201420141537 U CN 201420141537U CN 203850015 U CN203850015 U CN 203850015U
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- CN
- China
- Prior art keywords
- voltage
- layer
- cable
- crosslinked
- conductor
- 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 - Lifetime
Links
- 239000004020 conductor Substances 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims description 26
- 238000002788 crimping Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 abstract description 6
- 239000004703 cross-linked polyethylene Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229920000181 Ethylene propylene rubber Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model relates to intermediate equipment for a long-distance ultrahigh-voltage grade cable, and particularly to a supperhigh-voltage and ultrahigh-voltage crosslinked voltage flexible joint. Two ends of the flexible joint are respectively connected with a conductor of the cable body, a conductor shielding layer, a crosslinked polyethylene insulating layer, an insulated shielding layer and a metal shielding layer; wherein the conductor shielding layer, the crosslinked polyethylene insulating layer, the insulated shielding layer and the metal shielding layer are successively arranged from inside to outside. Adjacent conductors of the flexible joint are spliced in a fusion and/or compression jointing manner. Materials which are same with the materials of layers of the cable body are successively coated outside the connecting part between the two conductors from inside to outside. The supperhigh-voltage and ultrahigh-voltage crosslinked voltage flexible joint has advantages of: simple and mature process, and stable product quality. The supperhigh-voltage and ultrahigh-voltage crosslinked voltage flexible joint can be used for the superhigh-voltage and ultrahigh-voltage cable with voltage of 500kV or less. The cable flexible joint is integrated with the cable body. The outer diameter and the profile of the cable flexible joint are basically same with that of the cable body. Construction laying and cable maintenance are facilitated.
Description
Technical field
The utility model relates to a kind of superhigh pressure and ultra high voltage power cable with cross-linked polyethylene insulation, relates in particular to a kind of for a kind of intermediate equipment of growing distance, ultrahigh-voltage voltage grade cable.
Background technology
In the middle of high-voltage cross-linking polythene insulated power cable of the prior art, connect, comprise conductor, conductor screen, insulation, insulation shielding, metallic shield or metallic sheath.Wherein segment conductor shielding by hand wrapped mode cable is recovered, its insulating barrier and insulation screen adopt silicon rubber or ethylene-propylene rubber to make prefabricated transition joint, such mode can only be applied to voltage levels (220kV) and following power cable with cross-linked polyethylene insulation, can not be for 330kV and above superhigh pressure, ultra high voltage power cable with cross-linked polyethylene insulation, and the production equipment that this manufacture method needs is more, article construction size is larger.The rubber of transition joint is required to vulcanize under HTHP, because this product completes in factory, middle flow process is many, field erected requirement is higher, operational environment is poor, and the accident that easily causes cable middle interconnecting piece position occurs, such Product Process complicated operation in addition, production efficiency is low.
Utility model content
For addressing the above problem, the utility model provides a kind of and uses in superhigh pressure and ultra high voltage situation, and the crosslinked cable connecting hose of the cable of big-length, can be used for 500kV and following extra-high voltage grade power cable with cross-linked polyethylene insulation.
Superhigh pressure ultra high voltage crosslinked cable connecting hose described in the utility model, the two ends of the connecting hose conductor of stube cable body and conductor outside set gradually from the inside to the outside respectively conductor shield, crosslinked polyetylene insulated layer, insulation screen, metal screen layer, between described connecting hose place adjacent conductor, adopt welding and/or crimping mode continuous, outside, the junction of two conductors is each layer of identical material of parcel and cable body successively from the inside to the outside.
Crimping, welding can guarantee the outer metallic shield of cable or good electrical property, mechanical performance and the sealing property of metallic sheath, large in cable excess load or short-circuit conditions downloading flow, surface Paint Gloss is provided, has eliminated the impact that cable inner conductor shields the electric branch of rough initiation.
As a kind of improvement, the crosslinked polyetylene insulated layer thickness of described junction is greater than the thickness of the crosslinked polyetylene insulated layer of cable body, the outside of the crosslinked polyetylene insulated layer of junction is wrap insulate screen, metal screen layer successively, the insulation screen of junction, metal screen layer are connected by slope linkage section with insulation screen, the metal screen layer of cable body respectively, and the material that linkage section is every layer and the insulation screen being attached thereto, metal screen layer material are identical.
Preferably, the conductor shield of described junction, adopts the conductor screen material identical with cable body to recover and be cross-linked to form; The crosslinked polyetylene insulated layer of described junction adopts the insulating material injection moulding identical with cable body to recover to form; The insulation screen of described junction is wrapped or extrude and form in crosslinked polyetylene insulated layer outside; The metal screen layer of described junction recovers after semi-conductive screen band in insulation screen outer felt to form, and this metal screen layer adopts the mode of crimping and the metal screen layer of cable body to be connected.
Compared with prior art, the beneficial effects of the utility model are: technology is simple, ripe, constant product quality, can be used for 500kV and following superhigh pressure extra-high-tension cable; Cable flexible joint place and cable body form integrative-structure, and basically identical with external diameter, the profile of cable body, constructability lays and cable maintenance.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Wherein, 1-conductor; 2-conductor shield; The crosslinked polyetylene insulated layer of 3-; 4-insulation screen; 5-metallic shield or metallic sheath; 6-linkage section.
Embodiment
Below in conjunction with accompanying drawing, further explain the utility model.
A kind of superhigh pressure ultra high voltage crosslinked cable connecting hose, the two ends of connecting hose are the conductor 1 of stube cable body and conductor shield 2 that conductor 1 outside sets gradually from the inside to the outside, crosslinked polyetylene insulated layer 3, insulation screen 4, metal screen layer 5 respectively, between described connecting hose place adjacent conductor 1, adopt welding and/or crimping mode continuous, outside, the junction of two conductors 1 is each layer of identical material of parcel and cable body successively from the inside to the outside.
Described conductor shield 2, in two adjacent conductor connection outsides, adopts the conductor screen material identical with cable body to recover and be cross-linked to form; Crosslinked polyetylene insulated layer 3 thickness of junction are greater than the thickness of the crosslinked polyetylene insulated layer 3 of cable body, adopt injection moulding to recover to form; The outside of the crosslinked polyetylene insulated layer 3 of junction is wrap insulate screen 4, metal screen layer 5 successively, the insulation screen 4 of junction, metal screen layer 5 are connected by slope linkage section 6 with insulation screen 4, the metal screen layer 5 of cable body respectively, linkage section 6 material and the insulation screen 4 being attached thereto, metal screen layer 5 materials of every layer are identical, and insulation screen 4 is wrapped or extrude and form in crosslinked polyetylene insulated layer outside; Metallic shield or metallic sheath 5 recover after semi-conductive screen band in insulation screen outer felt to form, and metallic shield or metallic sheath 5 adopt and the metallic shield of cable body or metallic sheath of the mode of crimping to be connected, and form one with cable body.
Claims (6)
1. a superhigh pressure ultra high voltage crosslinked cable connecting hose, the conductor (1) of the two ends difference stube cable body of connecting hose and the conductor shield (2) that conductor (1) outside sets gradually from the inside to the outside, crosslinked polyetylene insulated layer (3), insulation screen (4), metal screen layer (5), it is characterized in that, between described connecting hose place adjacent conductor (1), adopt welding and/or crimping mode continuous, outside, the junction of two conductors (1) is each layer of identical material of parcel and cable body successively from the inside to the outside.
2. superhigh pressure ultra high voltage crosslinked cable connecting hose according to claim 1, it is characterized in that, crosslinked polyetylene insulated layer (3) thickness of described junction is greater than the thickness of the crosslinked polyetylene insulated layer of cable body (3), the outside of the crosslinked polyetylene insulated layer (3) of junction is wrap insulate screen (4) successively, metal screen layer (5), the insulation screen of junction (4), metal screen layer (5) respectively with the insulation screen (4) of cable body, metal screen layer (5) connects by slope linkage section (6), the material that linkage section (6) is every layer and the insulation screen (4) being attached thereto, metal screen layer (5) material is identical.
3. superhigh pressure ultra high voltage crosslinked cable connecting hose according to claim 2, is characterized in that, the conductor shield of described junction (2) adopts the conductor screen material identical with cable body to recover and be cross-linked to form.
4. superhigh pressure ultra high voltage crosslinked cable connecting hose according to claim 2, is characterized in that, the crosslinked polyetylene insulated layer (3) of described junction adopts the insulating material injection moulding identical with cable body to recover to form.
5. superhigh pressure ultra high voltage crosslinked cable connecting hose according to claim 2, is characterized in that, the insulation screen of described junction (4) is wrapped or extrude and form in crosslinked polyetylene insulated layer outside.
6. superhigh pressure ultra high voltage crosslinked cable connecting hose according to claim 2, it is characterized in that, the metal screen layer of described junction (5) recovers after semi-conductive screen band in insulation screen outer felt to form, and this metal screen layer (5) adopts the mode of crimping and the metal screen layer of cable body to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141537.5U CN203850015U (en) | 2014-03-27 | 2014-03-27 | Superhigh-voltage and ultrahigh-voltage crosslinked voltage flexible joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420141537.5U CN203850015U (en) | 2014-03-27 | 2014-03-27 | Superhigh-voltage and ultrahigh-voltage crosslinked voltage flexible joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850015U true CN203850015U (en) | 2014-09-24 |
Family
ID=51563000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420141537.5U Expired - Lifetime CN203850015U (en) | 2014-03-27 | 2014-03-27 | Superhigh-voltage and ultrahigh-voltage crosslinked voltage flexible joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850015U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070416A (en) * | 2015-09-09 | 2015-11-18 | 富通集团有限公司 | Plastic sleeve extruding and wrapping production line of cables |
| CN108899726A (en) * | 2018-05-09 | 2018-11-27 | 中交航局安装工程有限公司 | A kind of local control box and signal feedback terminal to welding line method |
| CN110364902A (en) * | 2019-08-12 | 2019-10-22 | 江苏亨通电力电缆有限公司 | Middle pressure fireproof cable connection method and middle pressure fireproof cable |
-
2014
- 2014-03-27 CN CN201420141537.5U patent/CN203850015U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070416A (en) * | 2015-09-09 | 2015-11-18 | 富通集团有限公司 | Plastic sleeve extruding and wrapping production line of cables |
| CN107086091A (en) * | 2015-09-09 | 2017-08-22 | 富通集团有限公司 | A kind of cable extrudes mould set production line |
| CN107086091B (en) * | 2015-09-09 | 2019-03-26 | 富通集团有限公司 | A kind of cable extrudes mould set production line |
| CN108899726A (en) * | 2018-05-09 | 2018-11-27 | 中交航局安装工程有限公司 | A kind of local control box and signal feedback terminal to welding line method |
| CN110364902A (en) * | 2019-08-12 | 2019-10-22 | 江苏亨通电力电缆有限公司 | Middle pressure fireproof cable connection method and middle pressure fireproof cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140924 |
|
| CX01 | Expiry of patent term |