CN101552432B - Installation method for rubber intermediate head of high voltage power cable and device - Google Patents
Installation method for rubber intermediate head of high voltage power cable and device Download PDFInfo
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- CN101552432B CN101552432B CN2009100604104A CN200910060410A CN101552432B CN 101552432 B CN101552432 B CN 101552432B CN 2009100604104 A CN2009100604104 A CN 2009100604104A CN 200910060410 A CN200910060410 A CN 200910060410A CN 101552432 B CN101552432 B CN 101552432B
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Abstract
The invention discloses an installation method for rubber intermediate head of high voltage power cable and a device, comprising the following steps: sleeving the intermediate head in cable main insulation in a certain depth, aerating high pressure gas in the chamber of the intermediate head and surface of cable main insulation, stopping aeration when moving in the given position; before sleeving the intermediate head in the cable, adopting the method for sleeving intermediate head using Half sleeve, namely, sleeving two Half sleeves into the chamber at two ends of the intermediate head, then sleeving the intermediate head with two ends having the Half sleeves into the cable main insulation using the high pressure gas, the fore end of Half sleeve having sealing ring and aerating hole; after connecting two cables, restarting to aerate, then pushing the intermediate head in the opposite direction to move in the given position to stop aeration, then unloading two Half sleeves, and the intermediate head elastically enclasping in the cable main body. The invention greatly improves the installation efficiency of the intermediate head and has simple and reliable operation, in particular is applicable to the installation of 100KV power cable.
Description
Technical field
The invention belongs to HV cable accessories mounting technique field, relate to a kind of high voltage power cable rubber-like transition joint installation method and device thereof.
Background technology
The transition joint of high voltage power cable rubber-like has safe and reliable, install simple, superiority such as practicality, but this joint must rely on caoutchouc elasticity to hold the effect of cable main competence exertion tightly, and the face that the joint inner chamber contacts with cable is bigger, be easy in the installation process form vacuum and can't move, this installs to cable and brings certain difficulty, when 110kV power cable is in the past installed, employing is manually led chain and by force joint is drawn in cable, or adopt predilation to add the method for stay tube, these methods waste time and energy, and also cause damage to stay accident potential to cable main and joint easily.Existing a kind of on the market in recent years than advanced electric cable accessories installation method and device, for example Chinese patent application number is 200410022854.6 disclosed " rubber-like electric cable fitting installation method and devices thereof ", this method and device can make high voltage power cable terminal quick for installation, stay impression, pull and scratch etc. can not for the cable main part, but this method and device only are suitable for the installation of power cable terminal, are not suitable for the installation of power cable transition joint.
Summary of the invention
The objective of the invention is, overcome the deficiencies in the prior art, a kind of high voltage power cable rubber-like transition joint installation method and device thereof are provided, mainly be applicable to the installation of 110kV power cable transition joint.
Concrete technical scheme of the present invention is: a kind of high voltage power cable rubber-like transition joint installation method, certain depth on the cable main insulation is inserted in transition joint, feed gases at high pressure at transition joint inner chamber and cable main insulation surface, between transition joint inner chamber and cable main insulation, form the high pressure gas mould, promoting transition joint simultaneously slides on cable, move to the precalculated position and stop inflation, it is characterized in that: transition joint is before being inserted in cable, at first adopt the Hough cover to be inserted in the method for transition joint, two pairs of Hough covers are inserted in respectively in the inner chamber of transition joint two ends, the transition joint that again two ends is had the Hough cover is inserted on the cable main insulation by gases at high pressure, an end Hough cover that wherein is inserted in earlier has sealing ring, after the end Hough that is inserted in be with a pore; After treating that two sections cables connections finish, restart inflation, and oppositely promote transition joint, move to assigned address and stop inflation, unload two pairs of tool devices such as Hough cover, transition joint is that elasticity is held tightly on cable main.
The Hough cover is inserted in the method for transition joint and is as mentioned above, at first on a base that conulite arranged, a Metallic rod of being longer than transition joint is inserted in the cone, have on the Metallic rod and much fasten the hole, the cone external diameter overlaps internal diameter less than Hough, a pair of Hough cover is enclosed within cone base and fixes with screw, again transition joint is enclosed within Metallic rod and Hough puts, manually compressing in the transition joint upper end with baffle plate docks its complete and following Hough cover, and insert fastening in the hole on the adjacent baffle plate with fixing transition joint position with pin, with the metal anchor ear Hough cover in lower end is held tightly with transition joint then; Take off top pin and baffle plate subsequently, the Hough cover of the transition joint other end is installed again and is held tightly, wherein have a pair of Hough sealing ring to be arranged in case leak-stopping gas in overlapping with the metal anchor ear.
For finishing above-mentioned installation method, device provided by the invention is: be made up of the base 1 that has conulite, Metallic rod 2, a pair of Hough cover 3 that has sealing ring and an air-filled pore, Hough cover 4, baffle plate 5, pin 6, two metal anchor ears 7, the compressed gas source 8 that has switch and seal tubes 9, wherein compressed gas source adopts pure nitrogen, and Hough cover and base all are that polytetrafluoroethylmaterial material is made.
The above-mentioned base 1 that has conulite, its with surface that cone is connected on plural groove 10 is arranged.
Owing to adopt the present invention, make the installation of high voltage power cable rubber-like transition joint time saving and energy saving, improved installation effectiveness greatly, the work of being inserted in of generally finishing a cover transition joint only needs the time of a few minutes, ratio cover ETL estimated time of loading in the past shortens greatly, and operation is simple and reliable, is specially adapted to the installation of 110kV power cable.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in further details.
Fig. 1 is that Hough cover of the present invention is inserted in the structural representation of transition joint;
Fig. 2 is the on-the-spot schematic diagram that uses of the present invention.
Embodiment
In Fig. 1, transition joint is before being inserted in cable, adopt the Hough cover to be inserted in the method for transition joint, two pairs of Hough covers are inserted in respectively in the inner chamber of transition joint two ends, at first on the base 1 that conulite is arranged, a Metallic rod 2 of being longer than transition joint 12 is fixed with cone, have on the Metallic rod 2 and much fasten hole 11, the cone external diameter is slightly less than Hough cover internal diameter, the a pair of Hough cover 3 that has a sealing ring is enclosed within cone base and fixes with screw, and the part that will insert transition joint on Hough cover 3 is smeared lubricating grease, again transition joint 12 is enclosed within on Metallic rod 2 and the Hough cover 3,, inserts fastening in the hole 11 on the adjacent baffle plate 5 with pin 6 contacting in the baffle plate 5 insertion Metallic rod 2 and with the other end of joint 12, with the fixing position of transition joint 12, with stainless steel metal anchor ear 7 Hough cover 3 and transition joint 12 are clamped then; Take off pin 6 and baffle plate 5 subsequently, adopt identical method to install and fastening Hough cover 4 at transition joint 12 other ends again.On the above-mentioned base 1 that has a conulite, and on the surface that cone is connected four grooves 10 are arranged, take out the transition joint that has the Hough cover with convenient.
In Fig. 2, when on-the-spot 110KV power cable transition joint was installed, certain depth on cable 13 main insulations was inserted in the transition joint 12 that two ends is had the Hough cover, and the end Hough cover 3 that wherein is inserted in earlier has sealing ring and air-filled pore; The compressed gas source 8 that will have switch docks by the pore that is connected that seal tube 9 and transition joint 12 1 end Houghs overlap on 3; Open gas source switch, feed high pressure nitrogen at transition joint 12 inner chambers and cable 13 main insulations surface, owing to press very tightly between sealing ring in the Hough cover 3 and the cable 13, gas can only be gone out from the other end, between transition joint 12 inner chambers and cable 13 main insulations, form the high pressure gas mould like this, promote transition joint 12 simultaneously and slide on cable 13, move to the termination of cable 13, promptly the precalculated position stops inflation; After treating that the 13 core crimping of two sections cables dispose, restart inflation, and oppositely promote transition joint 12, move to the precalculated position and stop inflation, the precalculated position promptly guarantees the middle of cable crimping position in transition joint, unload two pairs of tool devices such as Hough cover, transition joint 12 is that elasticity is held tightly on cable 13 main bodys, and the work of transition joint suit is promptly finished.
Claims (4)
1. high voltage power cable rubber-like transition joint installation method, certain depth on the cable main insulation is inserted in transition joint, feed gases at high pressure at transition joint inner chamber and cable main insulation surface, between transition joint inner chamber and cable main insulation, form the high pressure gas mould, promoting transition joint simultaneously slides on cable, move to the precalculated position and stop inflation, it is characterized in that: transition joint is before being inserted in cable, at first adopt the Hough cover to be inserted in the method for transition joint, two pairs of Hough covers are inserted in respectively in the inner chamber of transition joint two ends, the transition joint that again two ends is had the Hough cover is inserted on the cable main insulation by gases at high pressure, an end Hough cover that wherein is inserted in earlier has sealing ring, after the end Hough that is inserted in be with a pore; After treating that two sections cables connections finish, restart inflation, and oppositely promote transition joint, move to assigned address and stop inflation, unload two pairs of Hough covers, transition joint is that elasticity is held tightly on cable main.
2. high voltage power cable rubber-like transition joint installation method according to claim 1, at first on a base that conulite arranged, a Metallic rod of being longer than transition joint is inserted in the cone, have on the Metallic rod and much fasten the hole, the cone external diameter overlaps internal diameter less than Hough, a pair of Hough cover is enclosed within cone base and fixes with screw, again transition joint is enclosed within Metallic rod and Hough puts, manually compressing in the transition joint upper end with baffle plate docks its complete and following Hough cover, and insert fastening in the hole on the adjacent baffle plate with fixing transition joint position with pin, with the metal anchor ear Hough cover in lower end is held tightly with transition joint then; Take off top pin and baffle plate subsequently, the Hough cover of the transition joint other end is installed again and is held tightly, wherein have a pair of Hough sealing ring to be arranged in case leak-stopping gas in overlapping with the metal anchor ear.
3. realize the erecting device of the described high voltage power cable rubber-like of claim 2 transition joint installation method, it is characterized in that: form by the base that has conulite (1), Metallic rod (2), a pair of Hough cover (3), a pair of Hough cover (4), baffle plate (5), pin (6), two metal anchor ears (7), the compressed gas source (8) that has switch and the seal tube (9) that does not contain sealing ring and air-filled pore that has sealing ring and connection pore, wherein compressed gas source adopts nitrogen, and Hough cover and base all are that polytetrafluoroethylmaterial material is made.
4. erecting device as claimed in claim 3 is characterized in that: have the base (1) of conulite, its with surface that cone is connected on plural groove (10) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100604104A CN101552432B (en) | 2009-01-04 | 2009-01-04 | Installation method for rubber intermediate head of high voltage power cable and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100604104A CN101552432B (en) | 2009-01-04 | 2009-01-04 | Installation method for rubber intermediate head of high voltage power cable and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101552432A CN101552432A (en) | 2009-10-07 |
| CN101552432B true CN101552432B (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100604104A Active CN101552432B (en) | 2009-01-04 | 2009-01-04 | Installation method for rubber intermediate head of high voltage power cable and device |
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| Country | Link |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969689A (en) * | 2012-12-21 | 2013-03-13 | 江苏普朗克电力科技有限公司 | Full-dry-type outdoor terminal field gas installation tool |
| CN104201622B (en) * | 2014-09-11 | 2017-09-01 | 江苏安靠智能输电工程科技股份有限公司 | A kind of prefabricated class intermediate joint of electric cable erecting device and method |
| CN104967066A (en) * | 2015-06-11 | 2015-10-07 | 天津送变电工程公司 | Crosslinked cable prefabricated intermediate joint installation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391661A (en) * | 1981-02-02 | 1983-07-05 | Thomas & Betts Corporation | Cable covering method using an expandable insulative sleeve |
| CN2591822Y (en) * | 2002-12-02 | 2003-12-10 | 雷伟伦 | Cable middle joint mounting fitting |
| CN1503421A (en) * | 2002-11-22 | 2004-06-09 | 上海三原电缆附件公司 | Dry terminal for high-voltage cross-linked cable gas-insulation switch and installation method |
| CN1558427A (en) * | 2004-01-19 | 2004-12-29 | 长沙电缆附件有限公司 | Method for mounting rubber type power cable accessory and apparatus thereof |
| CN201332239Y (en) * | 2009-01-04 | 2009-10-21 | 武汉华瑞电力科技股份有限公司 | Mounting device for rubber transition joint of high-tension power cable |
-
2009
- 2009-01-04 CN CN2009100604104A patent/CN101552432B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391661A (en) * | 1981-02-02 | 1983-07-05 | Thomas & Betts Corporation | Cable covering method using an expandable insulative sleeve |
| CN1503421A (en) * | 2002-11-22 | 2004-06-09 | 上海三原电缆附件公司 | Dry terminal for high-voltage cross-linked cable gas-insulation switch and installation method |
| CN2591822Y (en) * | 2002-12-02 | 2003-12-10 | 雷伟伦 | Cable middle joint mounting fitting |
| CN1558427A (en) * | 2004-01-19 | 2004-12-29 | 长沙电缆附件有限公司 | Method for mounting rubber type power cable accessory and apparatus thereof |
| CN201332239Y (en) * | 2009-01-04 | 2009-10-21 | 武汉华瑞电力科技股份有限公司 | Mounting device for rubber transition joint of high-tension power cable |
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| Publication number | Publication date |
|---|---|
| CN101552432A (en) | 2009-10-07 |
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Owner name: WUHAN NARI LIMITED LIABILITY COMPANY OF STATE GRID Free format text: FORMER OWNER: WUHAN HUARUI ELECTRIC SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20150417 |
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Effective date of registration: 20150417 Address after: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 143 Patentee after: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Address before: 430074 Hubei Province, Wuhan city Hongshan District Luoyu Road No. 143 Patentee before: Wuhan Whvridl Electric Power Science and Technology Stock Co., Ltd. |