CN101777705A - Method for recovering insulation of flexible joint of high-voltage crosslinking submarine cable - Google Patents
Method for recovering insulation of flexible joint of high-voltage crosslinking submarine cable Download PDFInfo
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- CN101777705A CN101777705A CN200910045211A CN200910045211A CN101777705A CN 101777705 A CN101777705 A CN 101777705A CN 200910045211 A CN200910045211 A CN 200910045211A CN 200910045211 A CN200910045211 A CN 200910045211A CN 101777705 A CN101777705 A CN 101777705A
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Abstract
The invention discloses a method for recovering insulation of a flexible joint of high-voltage crosslinking submarine cables. A high-voltage crosslinking submarine cable joint comprises two high-voltage crosslinking cables and a middle joint connecting the constant sections of the two cables. The method is characterized in that both end parts of the high-voltage crosslinking cables are manufactured into conical insulators with grooves. After core conductors are connected in a welding mode, the welding position is dressed, an inside protective shield is recovered, and a crosslinking polyethylene cable material is injected through a mold to fill in the grooves so as to obtain a certain bonding force between an old insulator and a new insulator. An outside protective shield, a metal protective sleeve and an outer protective sleeve are recovered, so that the two cables are connected into one cable. The invention adopts the groove structure to improve the bonding performance between a cable body insulator and a joint insulator, and has the advantages of novel structure, convenient manufacture and the like.
Description
Technical field
This creativity and innovation patent relates to high-pressure cross-linking cable uiform section joint technology.Specifically, between two crosslinked cables, two crosslinked cables are connected into a cable in factory exactly by patent of the present invention.
Background technology
Present domestic high-voltage crosslinking submarine cable demand is increasing, because high-voltage crosslinking submarine cable length is big, need to adopt the uiform section joint in factory, they to be connected in series with several cables, and uiform section joint technical difficulty is big, mainly be that the old and new's insulating barrier faying face is thrown off easily in the joint, produce the gap, thereby cause insulating barrier to puncture, cause cable bad.Domestic this product is still not mature enough at present, and this market is still mainly captured by the import cable.
Summary of the invention
This creativity and innovation patent technical problem to be solved is, a kind of the old and new's insulating barrier connecting method is provided, its technical scheme is such, insulating barrier at two cable joint positions is whittled into two cones, it is characterized in that on the garden awl insulator of cutting, opening two grooves, respectively open a groove at two outer shielding roots of cable.After connecting copper conductor, load onto particular manufacturing craft, be placed on the injection molding machine, when injection moulding, the plastics of making joint fill up the groove of holding successfully simultaneously, and the joint plastics are embedded in the body insulation of cable two ends, produce certain adhesion.To prevent the disengaging of faying face.
Have a mind to effect, this creativity and innovation type joint will newly be annotated insulator and be embedded in the body insulation of cable two ends, make it be subjected to certain drawing power, unlikely disengagement easily, embedded part can increase creepage distance in addition, improves the electrical insulation capability of joint, this joint design compactness, manufacture craft is simple, and stronger operability is arranged.
Description of drawings
Describe this creativity and innovation in detail below in conjunction with the drawings and specific embodiments
Fig. 1 needs vertical cut-away view of machining shape for cable end
Fig. 2 is vertical cut-away view of cable joint shape
Embodiment
For technological means that this creativity and innovation is realized, create feature, reach purpose and be easy to understand, below in conjunction with further this creativity and innovation of elaboration of concrete diagram with effect.
Referring to Fig. 1, high-voltage crosslinking submarine cable joint comprises two crosslinked cables, transition joint, and some recover shielding semi-conductive tape, metallic sheath and oversheath.
Earlier Fig. 1 style is processed in two crosslinked cable ends, with welding method two crosslinked cable core conductors are joined together then, recover to load onto particular manufacturing craft behind the internal shield, on injection molding machine, the crosslinked polyethylene material injected die cavity (then better) as vacuum-pumping, pressurization.After cooling, demoulding finishing joint profile (making every effort to smooth outer surface, shaped).Recover outer shielding layer, metallic sheath and outer jacket.
More than show and described the advantage of basic principle, principal character and this creativity and innovation of this creativity and innovation.The technical staff of the industry should understand; this creativity and innovation is not restricted to the described embodiments; the just principle of describing in the foregoing description and the specification of this creativity and innovation; this creativity and innovation also has various changes and modifications under the prerequisite that does not break away from this creativity and innovation spirit and scope, and these changes and improvements all fall in claimed this creativity and innovation scope.The claimed scope of this creativity and innovation is defined by appending claims and equivalent thereof.
Claims (2)
1. high-voltage crosslinking submarine cable joint comprises two high-pressure cross-linking cables and connects the uiform section transition joint of two cables, it is characterized in that described two high-pressure cross-linking cable ends need make the garden awl insulator that has groove.
2. after online core conductor connects, inject cross-linked poly-ethylene cable material by mould, the cross-linked poly-ethylene cable material of injection fills up institute's open channels, and two cable insulations and splice insulation layer are firmly held, and prevents the insulating barrier disengagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910045211A CN101777705A (en) | 2009-01-13 | 2009-01-13 | Method for recovering insulation of flexible joint of high-voltage crosslinking submarine cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910045211A CN101777705A (en) | 2009-01-13 | 2009-01-13 | Method for recovering insulation of flexible joint of high-voltage crosslinking submarine cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101777705A true CN101777705A (en) | 2010-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910045211A Pending CN101777705A (en) | 2009-01-13 | 2009-01-13 | Method for recovering insulation of flexible joint of high-voltage crosslinking submarine cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101777705A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593783A (en) * | 2012-03-28 | 2012-07-18 | 重庆泰山电缆有限公司 | Direct-current cross-linked submarine cable connector and manufacturing method thereof |
| CN105390999A (en) * | 2015-10-29 | 2016-03-09 | 江苏沃能电气科技有限公司 | Bus joint insulation recovery processing method |
| CN112467638A (en) * | 2020-10-10 | 2021-03-09 | 西北水利水电工程有限责任公司 | Method for rapidly repairing damage of buried cable |
| CN114360764A (en) * | 2021-12-10 | 2022-04-15 | 江苏亨通高压海缆有限公司 | Manufacturing method of high-pressure submarine cable factory joint |
-
2009
- 2009-01-13 CN CN200910045211A patent/CN101777705A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593783A (en) * | 2012-03-28 | 2012-07-18 | 重庆泰山电缆有限公司 | Direct-current cross-linked submarine cable connector and manufacturing method thereof |
| CN105390999A (en) * | 2015-10-29 | 2016-03-09 | 江苏沃能电气科技有限公司 | Bus joint insulation recovery processing method |
| CN112467638A (en) * | 2020-10-10 | 2021-03-09 | 西北水利水电工程有限责任公司 | Method for rapidly repairing damage of buried cable |
| CN112467638B (en) * | 2020-10-10 | 2022-04-01 | 西北水利水电工程有限责任公司 | Method for rapidly repairing damage of buried cable |
| CN114360764A (en) * | 2021-12-10 | 2022-04-15 | 江苏亨通高压海缆有限公司 | Manufacturing method of high-pressure submarine cable factory joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100714 |