CN104184078A - Manufacturing of intermediate joint of high-voltage cable - Google Patents
Manufacturing of intermediate joint of high-voltage cable Download PDFInfo
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- CN104184078A CN104184078A CN201410319137.3A CN201410319137A CN104184078A CN 104184078 A CN104184078 A CN 104184078A CN 201410319137 A CN201410319137 A CN 201410319137A CN 104184078 A CN104184078 A CN 104184078A
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Abstract
The invention discloses manufacturing of an intermediate joint of a high-voltage cable, including cable cutting; core wire processing; pencil head processing which is used for decentralizing distribution distress of an electrical field; semiconductor-layer cleaning: using an accessary cleaning agent to clean the core wire; wrapping a stress relieving glue and sleeving into a stress control pipe; baking the stress control pipe; sleeving a shielding copper net at a long-end tail part; core wire pressing connection; polishing of a pressing connection head; baking of an internal semiconductive pipe; baking of an internal insulating pipe; baking of an external insulating pipe; baking of an external semiconductive layer; soldering welding; binding; shaping; first baking of an external protective layer; second baking of the external protective layer; and sealing by an adhesive tape after ending of the baking. The intermediate joint of the high-voltage cable is simple in operation, light in weight, excellent in waterproof performance and dirty resistance performance and capable of saving manpower resources.
Description
Technical field
The present invention relates to a kind of making of HV cable accessories, particularly a kind of making of high-voltage cable middle joint, belongs to cable and makes field.
Background technology
HV cable accessories refers to the general designation of cable termination and joint, annex for oil-filled cable mainly contains outdoor insulator terminal, GIS terminal and transformer terminal, joint has straight coupling, insulating joint, in these two kinds of joints, there are again stifled oily joint and the each one of jointing, because China has not developed oil-filled cable now, these technology disappear; Now for being divided into again outdoor insulator terminal, outdoor synthetic locking terminal, outdoor complete prefabricated outdoor terminal, outdoor dry type plug terminal, outdoor plug terminal, GIS terminal and transformer terminal according to the different cable termination of purposes on XLPE insulated cable; Equally, its respective cable joint is divided into straight coupling, branch joint, insulating joint, transition joint etc.; Also has the lapped insulation joint using under the state of emergency, these annexes are along with the cable kind difference of institute's adapted, its structure, material and moulding process are also variant, divide from the main mounting structure of stress cone of electric cable accessories, in insulator or synthetic locking terminal, be divided into again out of doors and have stress cone compactor terminal and unstressed cone compactor terminal; Joint also can be divided into complete prefabricated stress cone joint and assembling joint, but after 2000, does not substantially re-use assembling joint.
China's HV cable accessories refers to the electric cable accessories general name of 110kV and above.The Vicissitude of China's HV cable accessories is divided into three Main Stage, from the full oil-filled cable annex that last century, middle nineteen sixties was the first stage to the early 1990s, the nineties first arrival 2000 is that the crosslinked HV cable accessories of domestic oil-filled cable high pressure annex and import is mixed operational phase, progressively substituting import one electric cable accessories of domestic HV cable accessories in the phase III so far in 2000.But 220kV and above electric cable accessories still all adopt import so far, start to occur alternative phenomenon.
Summary of the invention
Goal of the invention: for for existing weight to send out in prior art, not easy-operating problem, the invention provides a kind of making of high-voltage cable middle joint.
Technical scheme: for achieving the above object, the invention provides a kind of making of high-voltage cable middle joint, comprise the steps:
A, cutting cable, by overlapping from incision position two sections of cables treating joint, overlapping length is 200～300mm, measures center line the marking of overlapping length, after black filling being retained, turns over simultaneously, does not cut off;
B, heart yearn processing, be inserted in respectively two sections of cables by the black plastic pipe of in pyrocondensation external member, one is long and the other is short two diameter maximums, then processes core;
C, pencil stub processing are used for disperseing Electric Field Distribution stress;
D, clean semiconductive layer: with the clean heart yearn of subsidiary cleaning agent;
E, looping stress evacuating glue are also inserted in stress control tube;
F, baking stress control tube;
G, be inserted in shielding copper mesh at long end afterbody;
H, be inserted in successively insulating material in long end, short end is inserted in interior semiconductive pipe, is inserted in successively insulated tube in internal layer redness, middle red external insulation pipe, the outer semiconductive pipe of outer black, semiconductive pipe in short end is inserted in black;
I, crimping heart yearn;
J, polishing crimp head, polishing is in order to eliminate point discharge;
K, on joint, hold black semi-conductive tape, on pencil stub, fill with stress glue, hold black semi-conductive tape on joint, after looping, joint external diameter and main insulation are in the same size; On pencil stub, fill with red stress glue, pencil stub is filled out and hidden from;
Semiconductive pipe in L, baking, in the black that short end has been inserted in, semiconductive pipe moves to baking contraction on joint, with insulating barrier and semiconductive pipe and the stress tube of the clean whole heart yearn of supporting cleaning agent;
Insulation in M, baking, moves on joint being inserted in insulated tube in the redness of long end innermost layer, holds PUR at these pipe two mouth of pipe positions, then heat shrink from the middle to both ends;
N, baking external insulation pipe, move to the red external insulation pipe that is inserted in the long end second layer on joint, holds PUR at these pipe two mouth of pipe positions, and then heat shrink from the middle to both ends, holds the sealing of high pressure mackintosh at two ends after completing;
O, baking outer semiconducting layer, will be inserted in the outermost black outer semiconducting layer of long end and move on joint, hold PUR, then heat shrink from the middle to both ends at these pipe two mouth of pipe positions;
P, be respectively inserted in respectively mutually copper mesh shielding, will be inserted in long end and move on joint with gauze screen, with hand by gauze screen each mutually on leveling, note copper mesh two ends to be pressed on the original screen of cable, with soldering simultaneously;
Q, colligation, shaping, the filler of digging when originally cutting cable is from newly turning back, then with white cotton tape by the colligation of three-phase heart yearn together, notice that whether mellow and full joint is smooth, when operation like this, be difficult for cutting scuffing;
R, welding ground, be tied the protection steel armour at joint two ends with subsidiary braiding copper cash;
S, toast outer jacket for the first time, the long oversheath pipe being inserted in already in an end cable is moved on to and starts pyrocondensation while exceeding aluminium hydraulic pressed connecting pipe position;
T, toast outer jacket for the second time, the short oversheath pipe being inserted in already in other end cable is moved on to and exceedes aluminium hydraulic pressed connecting pipe position, while entangling the long oversheath pipe 100mm first shrinking, start pyrocondensation;
W, baking finish rear use and explain and seal.
The present invention is simple to operate, lightweight, have good water-fast, bearing dirty property, can save human resources.
In described baking, the temperature of insulation, at 60 DEG C～80 DEG C, can effectively be controlled temperature like this.
Beneficial effect: prior art of the present invention is compared tool and had the following advantages:
1, the present invention simple to operate, lightweight, have good water-fast, bearing dirty property, can save human resources.
2, by controlling temperature, thereby protected cable joint can not melt because of excess Temperature.
Embodiment
By specific embodiment, the present invention is further elaborated, be noted that for those skilled in the art, under the premise without departing from the principles of the invention, the amendment of the various equivalent form of values of the present invention is all fallen within to the application's claims limited range.
Embodiment 1:
A making for high-voltage cable middle joint, comprises the steps:
A, cutting cable, by overlapping from incision position two sections of cables treating joint, overlapping length is 200mm, measures center line the marking of overlapping length, after black filling being retained, turns over simultaneously, does not cut off;
B, heart yearn processing, be inserted in respectively two sections of cables by the black plastic pipe of in pyrocondensation external member, one is long and the other is short two diameter maximums, then processes core;
C, pencil stub processing are used for disperseing Electric Field Distribution stress;
D, clean semiconductive layer: with the clean heart yearn of subsidiary cleaning agent;
E, looping stress evacuating glue are also inserted in stress control tube;
F, baking stress control tube;
G, be inserted in shielding copper mesh at long end afterbody;
H, be inserted in successively insulating material in long end, short end is inserted in interior semiconductive pipe, is inserted in successively insulated tube in internal layer redness, middle red external insulation pipe, the outer semiconductive pipe of outer black, semiconductive pipe in short end is inserted in black;
I, crimping heart yearn;
J, polishing crimp head, polishing is in order to eliminate point discharge;
K, on joint, hold black semi-conductive tape, on pencil stub, fill with stress glue, hold black semi-conductive tape on joint, after looping, joint external diameter and main insulation are in the same size; On pencil stub, fill with red stress glue, pencil stub is filled out and hidden from;
Semiconductive pipe in L, baking, in the black that short end has been inserted in, semiconductive pipe moves to baking contraction on joint, with insulating barrier and semiconductive pipe and the stress tube of the clean whole heart yearn of supporting cleaning agent;
Insulation in M, baking, moves on joint being inserted in insulated tube in the redness of long end innermost layer, holds PUR at these pipe two mouth of pipe positions, then heat shrink from the middle to both ends, and in described baking, the temperature of insulation, at 60 DEG C, can effectively be controlled temperature like this;
N, baking external insulation pipe, move to the red external insulation pipe that is inserted in the long end second layer on joint, holds PUR at these pipe two mouth of pipe positions, and then heat shrink from the middle to both ends, holds the sealing of high pressure mackintosh at two ends after completing;
O, baking outer semiconducting layer, will be inserted in the outermost black outer semiconducting layer of long end and move on joint, hold PUR, then heat shrink from the middle to both ends at these pipe two mouth of pipe positions;
P, be respectively inserted in respectively mutually copper mesh shielding, will be inserted in long end and move on joint with gauze screen, with hand by gauze screen each mutually on leveling, note copper mesh two ends to be pressed on the original screen of cable, with soldering simultaneously;
Q, colligation, shaping, the filler of digging when originally cutting cable is from newly turning back, then with white cotton tape by the colligation of three-phase heart yearn together, notice that whether mellow and full joint is smooth, when operation like this, be difficult for cutting scuffing;
R, welding ground, be tied the protection steel armour at joint two ends with subsidiary braiding copper cash;
S, toast outer jacket for the first time, the long oversheath pipe being inserted in already in an end cable is moved on to and starts pyrocondensation while exceeding aluminium hydraulic pressed connecting pipe position;
T, toast outer jacket for the second time, the short oversheath pipe being inserted in already in other end cable is moved on to and exceedes aluminium hydraulic pressed connecting pipe position, while entangling the long oversheath pipe 100mm first shrinking, start pyrocondensation;
W, baking finish rear use and explain and seal.
The present invention is simple to operate, lightweight, have good water-fast, bearing dirty property, can save human resources.
Embodiment 2:
A making for high-voltage cable middle joint, comprises the steps:
A, cutting cable, by overlapping from incision position two sections of cables treating joint, overlapping length is 300mm, measures center line the marking of overlapping length, after black filling being retained, turns over simultaneously, does not cut off;
B, heart yearn processing, be inserted in respectively two sections of cables by the black plastic pipe of in pyrocondensation external member, one is long and the other is short two diameter maximums, then processes core;
C, pencil stub processing are used for disperseing Electric Field Distribution stress;
D, clean semiconductive layer: with the clean heart yearn of subsidiary cleaning agent;
E, looping stress evacuating glue are also inserted in stress control tube;
F, baking stress control tube;
G, be inserted in shielding copper mesh at long end afterbody;
H, be inserted in successively insulating material in long end, short end is inserted in interior semiconductive pipe, is inserted in successively insulated tube in internal layer redness, middle red external insulation pipe, the outer semiconductive pipe of outer black, semiconductive pipe in short end is inserted in black;
I, crimping heart yearn;
J, polishing crimp head, polishing is in order to eliminate point discharge;
K, on joint, hold black semi-conductive tape, on pencil stub, fill with stress glue, hold black semi-conductive tape on joint, after looping, joint external diameter and main insulation are in the same size; On pencil stub, fill with red stress glue, pencil stub is filled out and hidden from;
Semiconductive pipe in L, baking, in the black that short end has been inserted in, semiconductive pipe moves to baking contraction on joint, with insulating barrier and semiconductive pipe and the stress tube of the clean whole heart yearn of supporting cleaning agent;
Insulation in M, baking, move on joint being inserted in insulated tube in the redness of long end innermost layer, hold PUR at these pipe two mouth of pipe positions, then heat shrink from the middle to both ends, in described baking, the temperature of insulation, at 60 DEG C～80 DEG C, can effectively be controlled temperature like this;
N, baking external insulation pipe, move to the red external insulation pipe that is inserted in the long end second layer on joint, holds PUR at these pipe two mouth of pipe positions, and then heat shrink from the middle to both ends, holds the sealing of high pressure mackintosh at two ends after completing;
O, baking outer semiconducting layer, will be inserted in the outermost black outer semiconducting layer of long end and move on joint, hold PUR, then heat shrink from the middle to both ends at these pipe two mouth of pipe positions;
P, be respectively inserted in respectively mutually copper mesh shielding, will be inserted in long end and move on joint with gauze screen, with hand by gauze screen each mutually on leveling, note copper mesh two ends to be pressed on the original screen of cable, with soldering simultaneously;
Q, colligation, shaping, the filler of digging when originally cutting cable is from newly turning back, then with white cotton tape by the colligation of three-phase heart yearn together, notice that whether mellow and full joint is smooth, when operation like this, be difficult for cutting scuffing;
R, welding ground, be tied the protection steel armour at joint two ends with subsidiary braiding copper cash;
S, toast outer jacket for the first time, the long oversheath pipe being inserted in already in an end cable is moved on to and starts pyrocondensation while exceeding aluminium hydraulic pressed connecting pipe position;
T, toast outer jacket for the second time, the short oversheath pipe being inserted in already in other end cable is moved on to and exceedes aluminium hydraulic pressed connecting pipe position, while entangling the long oversheath pipe 100mm first shrinking, start pyrocondensation;
W, baking finish rear use and explain and seal.
The present invention is simple to operate, lightweight, have good water-fast, bearing dirty property, can save human resources.
Claims (2)
1. a making for high-voltage cable middle joint, is characterized in that: comprise the steps:
A, cutting cable, by overlapping from incision position two sections of cables treating joint, overlapping length is 200～300mm, measures center line the marking of overlapping length, after black filling being retained, turns over simultaneously, does not cut off;
B, heart yearn processing, be inserted in respectively two sections of cables by the black plastic pipe of in pyrocondensation external member, one is long and the other is short two diameter maximums, then processes core;
C, pencil stub processing are used for disperseing Electric Field Distribution stress;
D, clean semiconductive layer: with the clean heart yearn of subsidiary cleaning agent;
E, looping stress evacuating glue are also inserted in stress control tube;
F, baking stress control tube;
G, be inserted in shielding copper mesh at long end afterbody;
H, be inserted in successively insulating material in long end, short end is inserted in interior semiconductive pipe, is inserted in successively insulated tube in internal layer redness, middle red external insulation pipe, the outer semiconductive pipe of outer black, semiconductive pipe in short end is inserted in black;
I, crimping heart yearn;
J, polishing crimp head;
K, on joint, hold black semi-conductive tape, on pencil stub, fill with stress glue, hold black semi-conductive tape on joint, after looping, joint external diameter and main insulation are in the same size; On pencil stub, fill with red stress glue, pencil stub is filled out and hidden from;
Semiconductive pipe in L, baking, in the black that short end has been inserted in, semiconductive pipe moves to baking contraction on joint, with insulating barrier and semiconductive pipe and the stress tube of the clean whole heart yearn of supporting cleaning agent;
Insulation in M, baking, moves on joint being inserted in insulated tube in the redness of long end innermost layer, holds PUR at these pipe two mouth of pipe positions, then heat shrink from the middle to both ends;
N, baking external insulation pipe, move to the red external insulation pipe that is inserted in the long end second layer on joint, holds PUR at these pipe two mouth of pipe positions, and then heat shrink from the middle to both ends, holds the sealing of high pressure mackintosh at two ends after completing;
O, baking outer semiconducting layer, will be inserted in the outermost black outer semiconducting layer of long end and move on joint, hold PUR, then heat shrink from the middle to both ends at these pipe two mouth of pipe positions;
P, be respectively inserted in respectively mutually copper mesh shielding, will be inserted in long end and move on joint with gauze screen, with hand by gauze screen each mutually on leveling, note copper mesh two ends to be pressed on the original screen of cable, with soldering simultaneously;
Q, colligation, shaping, the filler of digging when originally cutting cable is from newly turning back, then with white cotton tape by the colligation of three-phase heart yearn together;
R, welding ground, be tied the protection steel armour at joint two ends with subsidiary braiding copper cash;
S, toast outer jacket for the first time, the long oversheath pipe being inserted in already in an end cable is moved on to and starts pyrocondensation while exceeding aluminium hydraulic pressed connecting pipe position;
T, toast outer jacket for the second time, the short oversheath pipe being inserted in already in other end cable is moved on to and exceedes aluminium hydraulic pressed connecting pipe position, while entangling the long oversheath pipe 100mm first shrinking, start pyrocondensation;
W, baking finish rear use and explain and seal.
2. according to the making of a kind of high-voltage cable middle joint described in claims 1, it is characterized in that: in described baking, the temperature of insulation is at 60 DEG C～80 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319137.3A CN104184078A (en) | 2014-07-07 | 2014-07-07 | Manufacturing of intermediate joint of high-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319137.3A CN104184078A (en) | 2014-07-07 | 2014-07-07 | Manufacturing of intermediate joint of high-voltage cable |
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| CN104184078A true CN104184078A (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410319137.3A Pending CN104184078A (en) | 2014-07-07 | 2014-07-07 | Manufacturing of intermediate joint of high-voltage cable |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207135A (en) * | 2015-09-21 | 2015-12-30 | 国家电网公司 | Treatment method for high-voltage cable head middle core wire |
| CN106129914A (en) * | 2016-08-31 | 2016-11-16 | 山东电力建设第工程公司 | Electric power installs high-voltgae pothead production program |
| CN107181211A (en) * | 2017-06-30 | 2017-09-19 | 武汉船用机械有限责任公司 | A kind of preparation method of cable branch joint |
| CN107769104A (en) * | 2017-11-22 | 2018-03-06 | 国网四川省电力公司德阳供电公司 | A kind of Portable cable terminal makes support |
| CN111541195A (en) * | 2020-04-22 | 2020-08-14 | 启晗电力建设集团有限公司 | Cable butt joint process |
| CN114640080A (en) * | 2020-12-15 | 2022-06-17 | 太原安装工程集团有限公司 | Cable joint sealing device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08308057A (en) * | 1995-05-10 | 1996-11-22 | Tokyo Electric Power Co Inc:The | Cable connection method and cable connection structure |
| CN101630828A (en) * | 2009-06-26 | 2010-01-20 | 西安供电局 | Middle connector process of oil-immersed cable lapping |
| CN102509989A (en) * | 2011-11-29 | 2012-06-20 | 国网电力科学研究院 | Manufacturing method of but joints of elongated cables for geotechnical engineering instruments |
-
2014
- 2014-07-07 CN CN201410319137.3A patent/CN104184078A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08308057A (en) * | 1995-05-10 | 1996-11-22 | Tokyo Electric Power Co Inc:The | Cable connection method and cable connection structure |
| CN101630828A (en) * | 2009-06-26 | 2010-01-20 | 西安供电局 | Middle connector process of oil-immersed cable lapping |
| CN102509989A (en) * | 2011-11-29 | 2012-06-20 | 国网电力科学研究院 | Manufacturing method of but joints of elongated cables for geotechnical engineering instruments |
Non-Patent Citations (1)
| Title |
|---|
| 百度文库: "10KV高压电缆中间接头制作详细过程", 《10KV高压电缆中间接头制作详细过程》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207135A (en) * | 2015-09-21 | 2015-12-30 | 国家电网公司 | Treatment method for high-voltage cable head middle core wire |
| CN106129914A (en) * | 2016-08-31 | 2016-11-16 | 山东电力建设第工程公司 | Electric power installs high-voltgae pothead production program |
| CN106129914B (en) * | 2016-08-31 | 2017-11-28 | 山东电力建设第一工程公司 | Electric power installs high-voltgae pothead tools |
| CN107181211A (en) * | 2017-06-30 | 2017-09-19 | 武汉船用机械有限责任公司 | A kind of preparation method of cable branch joint |
| CN107769104A (en) * | 2017-11-22 | 2018-03-06 | 国网四川省电力公司德阳供电公司 | A kind of Portable cable terminal makes support |
| CN111541195A (en) * | 2020-04-22 | 2020-08-14 | 启晗电力建设集团有限公司 | Cable butt joint process |
| CN111541195B (en) * | 2020-04-22 | 2021-10-22 | 启晗电力建设集团有限公司 | Cable butt joint process |
| CN114640080A (en) * | 2020-12-15 | 2022-06-17 | 太原安装工程集团有限公司 | Cable joint sealing device and method |
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Application publication date: 20141203 |