CN105552820A - Integrated prefabricated type cable accessory - Google Patents
Integrated prefabricated type cable accessory Download PDFInfo
- Publication number
- CN105552820A CN105552820A CN201410609107.6A CN201410609107A CN105552820A CN 105552820 A CN105552820 A CN 105552820A CN 201410609107 A CN201410609107 A CN 201410609107A CN 105552820 A CN105552820 A CN 105552820A
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- conductor
- prefabricated type
- cable
- support component
- cable accessory
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Abstract
The invention provides an integrated prefabricated type cable accessory. A conductor is arranged inside the cable accessory; an insulating layer coats the conductor; and one end of the conductor is fixedly connected with a high-voltage end. A plurality of sheds made of ceramic or rubber insulating materials are arranged outside the insulating layer; and a support component is arranged at one end, which approaches the sheds and is far away from the high-voltage end, outside the insulating layer. According to the provided integrated prefabricated type cable accessory, the insulating sheds coat the conductor coated with the insulating layer to form the integrated prefabricated type cable accessory; and one end of the conductor is connected with the high-voltage end and one end, approaching the sheds and being far away from the high-voltage end, outside the insulating layer is provided with the support component connected with the cable. According to the invention, the cable accessory has advantages of simple structure, convenient manufacturing and installation, and low manufacturing cost; the electric field intensity distribution of the cable terminal is improved; and the engineering fault rate can be effectively controlled.
Description
Technical field
The present invention relates to a kind of electric cable accessories, particularly relate to a kind of Integral prefabricated type electric cable accessories.
Background technology
In China, XLPE cable is widely used, and prefabricated type cable accessory is comparatively conventional.Cable and electric cable accessories manufacture respectively, when making cable terminal, must divest one section of cable outer shielding layer, thus cause shield end electric field to be concentrated, and field intensity is larger.Electric field strength except with electric pressure mutually outside the Pass, also relevant with insulating material in electric cable accessories and insulation thickness, be typically employed in the mode of cable shield end preformed rubber stress cone at present, improve the electric-field intensity distribution of cable termination.Be divided into current-carrying part and insulated part in rubber stress cone, realized the improvement of cable termination electric-field intensity distribution by optimal design cone shape.
The key component of traditional cable terminal attachment is the interface of preformed rubber stress cone and cable insulation.The electrical insulation strength at this interface is relevant with the many factors such as clean-up performance, smooth degree, interfacial stress, elastomeric material on cable insulation surface.Except needing by the shape of theory analysis and Study on Numerical Simulation rubber stress cone and improving except electric field effect, also need to examine the performance of rubber stress cone under multiple physical field effect, also require higher to manufacturing process, manufacture difficulty is large.Therefore partial cables producer does not possess the ability manufacturing electric cable accessories, or electric cable accessories cannot meet cable needs completely.
Summary of the invention
Technical problem to be solved by this invention there is provided a kind of Integral prefabricated type electric cable accessories, by cable accessory designs integrally prefabricated, change the interface Joining Technology of cable body and annex complexity into connecting hose Joining Technology, improve the electric-field intensity distribution of cable termination, reduce manufacturing cost and engineering failure rate.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of Integral prefabricated type electric cable accessories, conductor is provided with in electric cable accessories, conductor is coated with insulating barrier, conductor one end is fixedly connected with high-pressure side, be provided with the full skirt of multiple pottery or rubber-covered material outside insulating barrier, outside insulating barrier, close full skirt is provided with support component away from one end of high-pressure side.
The material of described conductor, cross section and structure are consistent with cable conductor.
Described insulating layer material, thickness and structure are consistent with cable insulation.
Described support component is provided with bolt hole, and support component adopts epoxy material.
The creepage distance of described high-pressure side and support component upper bolt hole must not lower than instructions for use.
A kind of Integral prefabricated type electric cable accessories provided by the invention, be coated with the conductor outer wrapping insulation full skirt of insulating barrier, make it form Integral prefabricated type electric cable accessories, conductor one end is connected with high-pressure side, the outer support component being provided with stube cable near full skirt away from one end of high-pressure side of insulating barrier.Structure of the present invention is simple, easy to make, is convenient to install, and low cost of manufacture, improves the electric-field intensity distribution of cable termination, can effective Control Engineering failure rate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, invention is described further:
Fig. 1 is structural representation of the present invention.
Fig. 1: conductor 1, insulating barrier 2, full skirt 3, support component 4, high-pressure side 5, bolt hole 6.
Embodiment
As shown in fig. 1, a kind of Integral prefabricated type electric cable accessories, conductor 1 is provided with in electric cable accessories, conductor 1 is coated with insulating barrier 2, conductor 1 one end is fixedly connected with high-pressure side 5, be provided with the full skirt 3 of multiple pottery or rubber-covered material outside insulating barrier 2, outside insulating barrier 2, close full skirt 3 is provided with support component 4 away from one end of high-pressure side 5.
The material of described conductor 1, cross section and structure are consistent with cable conductor.
Described insulating barrier 2 material, thickness and structure are consistent with cable insulation.
Inner at electric cable accessories, conductor 1 and insulating barrier 2 consistent with cable, therefore field strength distribution is also consistent with cable, in electric cable accessories end, although field intensity is comparatively concentrated, because the dielectric constant of electric cable accessories inner conductor 1 is large, arcing distance is longer, outside also adds creepage distance by umbrella-skirt type design, therefore greatly reduces the probability of insulation breakdown.
Described support component 4 is provided with bolt hole 6, and support component 4 adopts epoxy material.
Described high-pressure side 5 must not lower than instructions for use with the creepage distance of support component 4 upper bolt hole 6.Suitable creepage distance is set and effectively can reduces insulation breakdown probability.
First, make the conductor 1 in electric cable accessories and the insulating barrier 2 that is coated on outside conductor 1 according to cable manufacturing process same steps and form blank, then cast, record or burn paper as sacrificial offerings on the blank made multiple pottery or rubber-covered full skirt, during making, the blank portions being not less than 500mm need be left in one end.During use, the blank portions one end reserved is connected on cable by connecting hose technical battery, and conductor 1 is connected with high-pressure side 5 by metalwork by the other end.
Claims (5)
1. an Integral prefabricated type electric cable accessories, it is characterized in that: in electric cable accessories, be provided with conductor (1), conductor (1) is coated with insulating barrier (2), conductor (1) one end is fixedly connected with high-pressure side (5), be provided with the full skirt (3) of multiple pottery or rubber-covered material outside insulating barrier (2), be provided with support component (4) near full skirt (3) away from one end of high-pressure side (5) outward at insulating barrier (2).
2. a kind of Integral prefabricated type electric cable accessories according to claim 1, is characterized in that: the material of described conductor (1), cross section and structure are consistent with cable conductor.
3. a kind of Integral prefabricated type electric cable accessories according to claim 1, is characterized in that: described insulating barrier (2) material, thickness and structure are consistent with cable insulation.
4. a kind of Integral prefabricated type electric cable accessories according to claim 1, is characterized in that: described support component (4) is provided with bolt hole (6), and support component (4) adopts epoxy material.
5. a kind of Integral prefabricated type electric cable accessories according to claim 1 or 5, is characterized in that: described high-pressure side (5) must not lower than instructions for use with the creepage distance of support component (4) upper bolt hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609107.6A CN105552820A (en) | 2014-11-04 | 2014-11-04 | Integrated prefabricated type cable accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410609107.6A CN105552820A (en) | 2014-11-04 | 2014-11-04 | Integrated prefabricated type cable accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105552820A true CN105552820A (en) | 2016-05-04 |
Family
ID=55831837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410609107.6A Pending CN105552820A (en) | 2014-11-04 | 2014-11-04 | Integrated prefabricated type cable accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105552820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036698A (en) * | 2018-07-09 | 2018-12-18 | 天长市鸿运仪表电线电缆有限公司 | A kind of high current photovoltaic plant direct current confluence cable and its mounting and installation method |
-
2014
- 2014-11-04 CN CN201410609107.6A patent/CN105552820A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036698A (en) * | 2018-07-09 | 2018-12-18 | 天长市鸿运仪表电线电缆有限公司 | A kind of high current photovoltaic plant direct current confluence cable and its mounting and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160504 |