CN105337212A - Method for strengthening insulation of 10kV overhead line and improving operation reliability - Google Patents
Method for strengthening insulation of 10kV overhead line and improving operation reliability Download PDFInfo
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- CN105337212A CN105337212A CN201510806646.3A CN201510806646A CN105337212A CN 105337212 A CN105337212 A CN 105337212A CN 201510806646 A CN201510806646 A CN 201510806646A CN 105337212 A CN105337212 A CN 105337212A
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Abstract
The invention relates to a method for strengthening insulation of a 10kV overhead line and improving operation reliability, and belongs to the technical field of distribution network maintenance. In order to salve the problems of bird damages and foreign body damages of the overhead line, the method provided by the invention comprises the following steps: treating conducting wires at two sides of a post tower and the conducting wires passing through a leading wire part; bind the conducting wires and an insulator at the top of a straight line pole insulator by adopting aluminum wire, and directly coating the top end of the insulator, a binding wire and leading wire sleeve ends at two sides together by adopting a prefabricated insulating protecting cover with a corresponding model to ensure that electrified parts are not exposed; and for a tension-resistant pole connecting fitting, uniformly winding the lower end of a suspension insulator and a socket clevis by adopting a silicon rubber hot-melt adhesive tape, and then coating end parts of a tension-resistant wire clip and a conducting wire sleeve together by adopting a prefabricated tension-resistant wire clip insulating protection cover with a corresponding model so as to ensure that the electrified parts are not exposed. The method provided by the invention is wide in application range, convenient in construction, strong in operability, obvious in effect and low in cost.
Description
Technical field
The present invention relates to a kind of method strengthened overhead transmission line insulation, improve operational reliability, be widely used in 10kV overhead transmission line, belong to power distribution network service technique field.
Background technology
In recent years, along with the rapid expansion in city, Studies on Avian Habitat seriously occupied by armored concrete, forces birds to be taken by Bird's Nest and builds on electric force pole tower, and, mix a large amount of iron wires in bird's nest, meet sleet, foggy weather, easily cause ground connection or short trouble.The floating things such as in addition, in application districts such as Jiaodong Peninsulas, orchard worker uses reflective membrane, reflective colour bar in a large number, and autumn, strong wind weather was multiple, discarded reflective membrane, very easily scrape on wire, cause ground connection or short trouble.For the distribution line that phase spacing is less, the harm of bird's nest and floating thing is particularly outstanding.
Along with the development of national economy and the continuous growth of electricity needs, electrical network scale development is at full speed, and power circuit highlights more by the impact of the factors such as bird pest, foreign object damage, simultaneously, the requirement of Electricity customers to power supply quality is more and more higher, makes the reliability of power distribution network face many challenges.
Summary of the invention
The object of the invention is to solve the bird pest of overhead transmission line and foreign object damage problem, the reinforcement 10kV overhead transmission line insulation that a kind of easy construction, interruption duration are short, insulate reliable, with low cost is provided, improves the method for operational reliability.
The present invention strengthens the insulation of 10kV overhead transmission line, the method for raising operational reliability is achieved through the following technical solutions:
Strengthen the insulation of 10kV overhead transmission line, improve a method for operational reliability, comprise the following steps:
One, adopt conventional method by fixed track usage plan;
Two, for the wire of shaft tower both sides and the wire process at the position that excessively goes between:
For the wire of each 0.8-1.2 rice in shaft tower both sides and the wire at the position that excessively goes between, employing silicon rubber insulating paint brushes one times, then carry out coated with silicon rubber insulation sleeve pipe, utilize stickiness and the normal temperature cure performance of coating, sleeve pipe is made to be adhering closely on wire, eliminate the space between insulating barrier and wire, form one with wire, prevent acid, alkali, salt and air to the corrosion of equipment;
Three, for the process on linear rod insulator top:
For linear rod insulator top, wire and insulator adopt aluminum steel colligation, adopt the prefabricated insulating shield of respective model, directly carry out coated together by the wire socket end of position, insulator top, binding wire and both sides, guarantee charged position not exposed, then guard shield fastening is fixed;
Four, tension-resistant rod is connected to the process of gold utensil:
Gold utensil is connected for tension-resistant rod, adopt silicon rubber Hot melt adhesive tape, uniform winding is carried out in suspension insulator lower end and socket-clevis eye, then the prefabricated strain clamp insulating shield of respective model is adopted, strain clamp and wire socket end are carried out coated together, guarantee charged position not exposed, then guard shield fastening is fixed.
T-shaped wire clamp, jumper clamp are needed to the connecting portion of thermometric, do not process.
The silicon rubber insulating paint adopted in step 2 of the present invention is flame-retarded heat-conducting silicon rubber insulating paint,
This material has in-place molding, easy construction, fire-retardant, heat conduction, insulation, the feature such as ageing-resistant, solves that the easy season cracking of heat-shrinkable T bush, heat conductivility are poor, connecting box is easily threaded off into the problem such as need dismounting component, engineering time long during, construction.
The disruptive field intensity of silicon rubber insulating paint is greater than 25kV/mm, has good insulation property; Conductive coefficient is 0.202W/(m.K), improve 10 times than air conduction or interval air conduction performance, in actual applications, adopt the electric equipment body of this material than the equivalent devices temperature not having to adopt and reduce about 2 ~ 10 DEG C, there is good thermal conductivity; Flame retardant effect is remarkable, reaches FV-0 level; Have passed Wuhan High Voltage Research Institute artificial accelerated aging test l700h(saline fog method) detection, there is good ageing-resistant performance; Safe, nontoxic, free from environmental pollution.In addition, this material normal temperature cure, in-place molding, be suitable for the surface protection of special-shaped equipment and component and the insulating protection process of special electric contact portion position; Covering property is good, strength of coating is high, and adhesive force is high.
To be that inflaming retarding heat-conducting type silicon rubber insulating paint is prefabricated form the silicon rubber insulation sleeve pipe adopted in step 2 of the present invention, thickness is 1.5-2.5mm, the cylinder-shaped sleeve that diameter matches with wire diameter, opening process is done in the side of this sleeve pipe, the tower place of connecing chamfering and keep smooth;
The insulating shield adopted in step 3 of the present invention is silicon rubber insulator insulating shield.
The present invention has following advantage and feature compared with the prior art:
1. applied widely.This method is applicable to the distribution line adopting overhead bare conductor, and in China, its scope of application is huge.Select line situation is better, and the rational circuit of medium-long term internal burden situation is applied, and destroys for bird pest and floating thing, effectively can reduce distribution line failure tripping operation, improve power supply reliability.
2. easy construction.This method adopts prefabricated silicon rubber insulation sleeve pipe and insulating shield as main material, easy construction, meanwhile, adopts Standardization Process, avoids the dielectric strength deficiency that different personnel's construction quality difference causes.
3. workable.Required interruption duration is short, and processing a base shaft tower on average needs 1 hours, reasonable arrangement personnel and interruption duration, gets final product the within a short period of time of circuit enforcement one by one, has very strong operability.
4. successful.Change from passive to active, innovation and application, on overhead distribution, effectively can defend bird pest and foreign object damage in longer cycle, improves circuit operational reliability successful.
5. reduce entreprise cost.As integral insulationization transformation circuit, must need to change shaft tower, gold utensil, big machinery and a large amount of personnel are also needed to assist, even separately to select path, relate to the series of problems such as cultivated land occupancy, vegetation deterioration, use the present invention, only need do local insulating process to existing equipment can get a desired effect.
Accompanying drawing explanation
Fig. 1: the wire of shaft tower both sides, the wire crossing lead-in wire position and linear rod insulator top process schematic diagram;
Fig. 2: tension-resistant rod connects gold utensil process structural representation.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, in the every other embodiment not having to obtain under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1: with reference to Fig. 1-2.Strengthen the insulation of 10kV overhead transmission line, improve a method for operational reliability, comprise the following steps:
One, adopt conventional method by fixed track usage plan;
Two, for the wire of shaft tower both sides and the wire process at the position that excessively goes between:
For the wire of each 0.8-1.2 rice in shaft tower both sides and the wire at the position that excessively goes between, employing silicon rubber insulating paint brushes one times, then carry out coated with silicon rubber insulation sleeve pipe, utilize stickiness and the normal temperature cure performance of coating, sleeve pipe is made to be adhering closely on wire, eliminate the space between insulating barrier and wire, form one with wire, prevent acid, alkali, salt and air to the corrosion of equipment;
Three, for the process on linear rod insulator top:
For linear rod insulator top, wire and insulator adopt aluminum steel colligation usually, adopt the prefabricated insulating shield of respective model, insulating shield is silicon rubber insulator insulating shield, directly the wire socket end of position, insulator top, binding wire and both sides is carried out coated together, guarantee charged position not exposed, then guard shield fastening is fixed;
Four, tension-resistant rod is connected to the process of gold utensil:
Gold utensil is connected for tension-resistant rod, adopt silicon rubber Hot melt adhesive tape, uniform winding is carried out in suspension insulator lower end and socket-clevis eye, then the prefabricated strain clamp insulating shield of respective model is adopted, strain clamp and wire socket end are carried out coated together, guarantee charged position not exposed, then guard shield fastening is fixed.
In this method, T-shaped wire clamp, jumper clamp are needed to the connecting portion of thermometric, do not process.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. strengthen the insulation of 10kV overhead transmission line, improve a method for operational reliability, it is characterized in that: comprise the following steps:
One, adopt conventional method by fixed track usage plan;
Two, for the wire of shaft tower both sides and the wire process at the position that excessively goes between:
For the wire of each 0.8-1.2 rice in shaft tower both sides and the wire at the position that excessively goes between, employing silicon rubber insulating paint brushes one times, then carry out coated with silicon rubber insulation sleeve pipe, utilize stickiness and the normal temperature cure performance of coating, sleeve pipe is made to be adhering closely on wire, eliminate the space between insulating barrier and wire, form one with wire, prevent acid, alkali, salt and air to the corrosion of equipment;
Three, for the process on linear rod insulator top:
For linear rod insulator top, wire and insulator adopt aluminum steel colligation, adopt the prefabricated insulating shield of respective model, directly carry out coated together by the wire socket end of position, insulator top, binding wire and both sides, guarantee charged position not exposed, then guard shield fastening is fixed;
Four, tension-resistant rod is connected to the process of gold utensil:
Gold utensil is connected for tension-resistant rod, adopt silicon rubber Hot melt adhesive tape, uniform winding is carried out in suspension insulator lower end and socket-clevis eye, then the prefabricated strain clamp insulating shield of respective model is adopted, strain clamp and wire socket end are carried out coated together, guarantee charged position not exposed, then guard shield fastening is fixed.
2. a kind ofly according to claim 1 strengthen the insulation of 10kV overhead transmission line, improve the method for operational reliability, it is characterized in that: the connecting portion T-shaped wire clamp, jumper clamp being needed to thermometric, does not process.
3. a kind of method strengthened the insulation of 10kV overhead transmission line, improve operational reliability according to claim 1 or 2, it is characterized in that: the silicon rubber insulating paint adopted in described step 2 is flame-retarded heat-conducting silicon rubber insulating paint, disruptive field intensity is greater than 25kV/mm, conductive coefficient is 0.202W/(m.K), flame retardant effect is FV-0 level.
4. a kind ofly according to claim 3 strengthen the insulation of 10kV overhead transmission line, improve the method for operational reliability, it is characterized in that: to be that inflaming retarding heat-conducting type silicon rubber insulating paint is prefabricated form the silicon rubber insulation sleeve pipe adopted in described step 2, thickness is 1.5-2.5mm, the cylinder-shaped sleeve that diameter matches with wire diameter.
5. a kind ofly according to claim 4 strengthen the insulation of 10kV overhead transmission line, improve the method for operational reliability, it is characterized in that: the insulating shield adopted in step 3 is silicon rubber insulator insulating shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510806646.3A CN105337212A (en) | 2015-11-21 | 2015-11-21 | Method for strengthening insulation of 10kV overhead line and improving operation reliability |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510806646.3A CN105337212A (en) | 2015-11-21 | 2015-11-21 | Method for strengthening insulation of 10kV overhead line and improving operation reliability |
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| CN105337212A true CN105337212A (en) | 2016-02-17 |
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| CN201510806646.3A Pending CN105337212A (en) | 2015-11-21 | 2015-11-21 | Method for strengthening insulation of 10kV overhead line and improving operation reliability |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302200A (en) * | 2017-08-17 | 2017-10-27 | 广东电网有限责任公司东莞供电局 | A kind of overhead transmission line protector and system for windage yaw |
| CN109742564A (en) * | 2019-03-12 | 2019-05-10 | 广州番禺电缆集团有限公司 | A kind of anti-down lead wire of prefabricated |
| CN115241800A (en) * | 2022-07-22 | 2022-10-25 | 国网福建省电力有限公司南安市供电公司 | 10kV live working bypass flexible cable suspension device and installation method thereof |
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| JPH10285735A (en) * | 1997-04-09 | 1998-10-23 | Hokuriku Kasen Kogyo Kk | Wire tension for overhead wire to steel tower |
| CN101899263A (en) * | 2010-03-26 | 2010-12-01 | 福建瑞森化工有限公司 | Flame-retarding and heat-conducting silicon rubber insulating paint and preparation method thereof |
| CN202384118U (en) * | 2011-12-31 | 2012-08-15 | 慈溪市台联电器设备有限公司 | Insulation protecting cover of tension string |
| CN104466783A (en) * | 2013-09-18 | 2015-03-25 | 国家电网公司 | Protecting device for alive circuit and insulating protection method |
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2015
- 2015-11-21 CN CN201510806646.3A patent/CN105337212A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10285735A (en) * | 1997-04-09 | 1998-10-23 | Hokuriku Kasen Kogyo Kk | Wire tension for overhead wire to steel tower |
| CN101899263A (en) * | 2010-03-26 | 2010-12-01 | 福建瑞森化工有限公司 | Flame-retarding and heat-conducting silicon rubber insulating paint and preparation method thereof |
| CN202384118U (en) * | 2011-12-31 | 2012-08-15 | 慈溪市台联电器设备有限公司 | Insulation protecting cover of tension string |
| CN104466783A (en) * | 2013-09-18 | 2015-03-25 | 国家电网公司 | Protecting device for alive circuit and insulating protection method |
Non-Patent Citations (3)
| Title |
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| 余虹云: "《配电网导线接续与防雷技术》", 31 March 2012, 中国电力出版社 * |
| 王永建: "绝缘遮蔽罩在10KV带电作业中的应用", 《云南电力技术》 * |
| 王立志等: "提高10kV架空线路运行可靠性的新方法", 《农村电气化》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302200A (en) * | 2017-08-17 | 2017-10-27 | 广东电网有限责任公司东莞供电局 | A kind of overhead transmission line protector and system for windage yaw |
| CN109742564A (en) * | 2019-03-12 | 2019-05-10 | 广州番禺电缆集团有限公司 | A kind of anti-down lead wire of prefabricated |
| CN115241800A (en) * | 2022-07-22 | 2022-10-25 | 国网福建省电力有限公司南安市供电公司 | 10kV live working bypass flexible cable suspension device and installation method thereof |
| CN115241800B (en) * | 2022-07-22 | 2024-04-30 | 国网福建省电力有限公司南安市供电公司 | 10KV live working bypass flexible cable suspension device and installation method thereof |
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Application publication date: 20160217 |
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