CN105206343A - Protective device for live lines - Google Patents
Protective device for live lines Download PDFInfo
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- CN105206343A CN105206343A CN201510586477.7A CN201510586477A CN105206343A CN 105206343 A CN105206343 A CN 105206343A CN 201510586477 A CN201510586477 A CN 201510586477A CN 105206343 A CN105206343 A CN 105206343A
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Abstract
The invention discloses a protective device for live lines and belongs to the field of protection of electric power facilities. The protective device is used for protection of high-voltage overhead transmission lines and comprises a thermal insulating layer, an insulation layer, a shielding layer, a flame retarding layer and a wear-resisting waterproof layer in sequence from inside to outside, wherein the thermal insulating layer is formed by weaving aluminum silicate fibers and quartz fibers, a gap formed after weaving is conducted is filled with silicon dioxide aerogel particles, and the surface of the aluminum silicate fiber and quartz fiber fabric is covered with a high temperature resisting coating after filling is conducted; the high temperature resisting coating is prepared by using 80-90 parts of methyl vinyl silicone rubber as base stock and adding 50-60 parts of white carbon black, 30-40 parts of aluminum oxide particles, 15-20 parts of zirconium dioxide, 5-6 parts of silicate ester, 10-15 parts of ultrathin ceramic powder and 5-8 parts of adhesion promoters to the base stock. By the adoption of the technical scheme, the protective device can protect naked wires, plantations, houses, personnel and the like against the electric discharge phenomenon caused by overcast and rainy weather, thereby ensuring the safety of people and properties.
Description
Technical field
The invention belongs to electric power facility protection field, specifically, particularly relate to a kind of protector for alive circuit.
Background technology
Carrying out long distance powedr transmission dispensing often adopts exposed power transmission cable to carry out the conveying of electric power, the external environment tackling many complexity is often needed in course of conveying, aerial high-voltage circuit needs to cross over different environment, as village, road, mountain area, jungle etc., due to the growth that some plant is in successive years, can and originally have safe distance transmission line move closer to, in village etc., because the height of original aerial cable is very not high, add a cover house the safe distance between house and transmission line may be caused to reduce if run into villager.Above-mentioned situation, once run into rainy weather and very easily make high-pressure delivery circuit and produce electric discharge phenomena between vegetation, house etc. under the effect of humid air, causes safely serious hidden danger to the life security of people, property and transmission of electricity.
Summary of the invention
The object of the present invention is to provide a kind of protector for alive circuit, it can play the protection rainy weathers such as nuditing wire and vegetation, house, personnel being caused to electric discharge phenomena, ensures the safety of personnel, property.
For achieving the above object, the present invention is achieved by the following technical solutions:
The protector for alive circuit described in the present invention, described protector comprises thermal insulation layer, insulating barrier, screen, flame-retardant layer, wear-resisting watertight composition from inside to outside successively; Wherein said thermal insulation layer adopts alumina silicate fibre and silica fibrage to form, silica aerogel particles is filled with in the space that braiding is formed afterwards, alumina silicate fibre after filling and silica fibrage thing surface coverage have high-temperaure coating, described high-temperaure coating comprises with the methyl vinyl silicone rubber of 80 ~ 90 parts for base-material, and on above-mentioned base-material, be added with white carbon 50 ~ 60 parts, alumina particle 30 ~ 40 parts, zirconium dioxide 15 ~ 20 parts, esters of silicon acis 5 ~ 6 parts, ceramic 10 ~ 15 parts, adhesion promoter 5 ~ 8 parts.
Say further, the insulating barrier described in the present invention is made up of the composition of following weight portion: high density polyethylene (HDPE) 45 ~ 65 parts, fire retardant 10 ~ 20 parts, pentaerythrite three (methyl) acrylate 3 ~ 6 parts, age resister 5 ~ 10 parts.
Say further, screen described in the present invention adopts diameter to be that the stainless steel wire of 0.2 ~ 0.6mm and the high strength glass fiber of 0.2 ~ 0.6mm are woven into staggered superposition pressing after woven fabric.
Say further, the adhesion promoter described in the present invention adopts compound bifunctional silane.
Say further, the fire retardant described in the present invention adopts organic fire-retardant or inorganic combustion inhibitor.
Say further, the inorganic combustion inhibitor described in the present invention adopts ammonium dihydrogen phosphate.
Say further, the organic fire-retardant described in the present invention adopts tributyl phosphate.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention can protect the region that high pressure overhead power line is crossed over effectively, avoid causing high pressure overhead power line to the electric discharge of contactant under personnel or trees close contact and rainy weather, the safety of guarantee personnel and property, and useful life and protection effect good, the frequency changing protector can be reduced, reduce protection cost.
Embodiment
Below in conjunction with embodiment, the technical scheme described in the application is described further.
Embodiment 1: a kind of protector for alive circuit, described protector comprises thermal insulation layer, insulating barrier, screen, flame-retardant layer, wear-resisting watertight composition from inside to outside successively; Wherein said thermal insulation layer adopts alumina silicate fibre and silica fibrage to form, silica aerogel particles is filled with in the space that braiding is formed afterwards, alumina silicate fibre after filling and silica fibrage thing surface coverage have high-temperaure coating, described high-temperaure coating comprises with the methyl vinyl silicone rubber of 82 ~ 88 parts for base-material, and on above-mentioned base-material, be added with white carbon 52 ~ 58 parts, alumina particle 32 ~ 38 parts, zirconium dioxide 16 ~ 18 parts, esters of silicon acis 5.2 ~ 5.8 parts, ceramic 12 ~ 14 parts, adhesion promoter 6 ~ 7 parts.
Embodiment 2: a kind of protector for alive circuit, described protector comprises thermal insulation layer, insulating barrier, screen, flame-retardant layer, wear-resisting watertight composition from inside to outside successively; Wherein said thermal insulation layer adopts alumina silicate fibre and silica fibrage to form, silica aerogel particles is filled with in the space that braiding is formed afterwards, alumina silicate fibre after filling and silica fibrage thing surface coverage have high-temperaure coating, described high-temperaure coating comprises with the methyl vinyl silicone rubber of 80 ~ 90 parts for base-material, and on above-mentioned base-material, be added with white carbon 50 ~ 60 parts, alumina particle 30 ~ 40 parts, zirconium dioxide 15 ~ 20 parts, esters of silicon acis 5 ~ 6 parts, ceramic 10 ~ 15 parts, adhesion promoter 5 ~ 8 parts.
Embodiment 3: a kind of protector for alive circuit, described protector comprises thermal insulation layer, insulating barrier, screen, flame-retardant layer, wear-resisting watertight composition from inside to outside successively; Wherein said thermal insulation layer adopts alumina silicate fibre and silica fibrage to form, silica aerogel particles is filled with in the space that braiding is formed afterwards, alumina silicate fibre after filling and silica fibrage thing surface coverage have high-temperaure coating, described high-temperaure coating comprises with the methyl vinyl silicone rubber of 85 parts for base-material, and on above-mentioned base-material, be added with white carbon 55 parts, alumina particle 35 parts, zirconium dioxide 17 parts, esters of silicon acis 5.5 parts, ceramic 13 parts, adhesion promoter 6.5 parts.
Embodiment 4: a kind of protector for alive circuit, described insulating barrier is made up of the composition of following weight portion: high density polyethylene (HDPE) 45 ~ 65 parts, fire retardant 10 ~ 20 parts, pentaerythrite three (methyl) acrylate 3 ~ 6 parts, age resister 5 ~ 10 parts.Remainder and embodiment 1 or embodiment 2 or embodiment 3 identical.
Embodiment 5: a kind of protector for alive circuit, described insulating barrier is made up of the composition of following weight portion: high density polyethylene (HDPE) 50 ~ 60 parts, fire retardant 12 ~ 18 parts, pentaerythrite three (methyl) acrylate 4 ~ 5 parts, age resister 6 ~ 8 parts.Remainder and embodiment 1 or embodiment 2 or embodiment 3 identical.
Embodiment 6: a kind of protector for alive circuit, described insulating barrier is made up of the composition of following weight portion: high density polyethylene (HDPE) 55 parts, fire retardant 15 parts, pentaerythrite three (methyl) acrylate 4.5 parts, age resister 7.5 parts.Remainder and embodiment 1 or embodiment 2 or embodiment 3 identical.
Embodiment 7: a kind of protector for alive circuit, described screen adopts diameter to be that the stainless steel wire of 0.2mm and the high strength glass fiber of 0.2mm are woven into staggered superposition pressing after woven fabric.Described adhesion promoter adopts compound bifunctional silane.Remainder is same as the previously described embodiments.
Embodiment 8: a kind of protector for alive circuit, described screen adopts diameter to be that the stainless steel wire of 0.6mm and the high strength glass fiber of 0.6mm are woven into staggered superposition pressing after woven fabric.Described adhesion promoter adopts compound bifunctional silane.Remainder is same as the previously described embodiments.
Embodiment 9: a kind of protector for alive circuit, described screen adopts diameter to be that the stainless steel wire of 0.4mm and the high strength glass fiber of 0.4mm are woven into staggered superposition pressing after woven fabric.Described adhesion promoter adopts compound bifunctional silane.Remainder is same as the previously described embodiments.
Embodiment 10: a kind of protector for alive circuit, described fire retardant adopts the one in ammonium dihydrogen phosphate or tributyl phosphate, and remainder is identical with the part in embodiment 4 ~ embodiment 9.
The present invention comprises thermal insulation layer, insulating barrier, screen, flame-retardant layer, wear-resisting watertight composition from inside to outside successively; Wherein because high pressure overhead power line adopts high power capacity conveyance strategy usually, its conductor temp .-elevating amount is larger, temperature can reach about 200 DEG C, so adopt thermal insulation layer to carry out heat insulation protection to peripheral unit, thermal insulation layer described in the present invention can not only play good heat-blocking action, but also fire retardation that can be certain and insulation effect, effectively extend the useful life of protector.
Insulating barrier described in the present invention can strengthen insulation property of the present invention further, reduces ultra-high-tension power transmission line because the electrical shocking problem that contactant is comparatively near or rainy weather causes.Screen in same the present invention adopts the stainless steel wire of high strength and the fiberglass braided rear staggered superposition pressing of high strength, select the fiber of 0.2mm, 0.4mm, 0.6mm tri-kinds of different-diameters simultaneously, the different protective action punctured can be played under different pressing formation, the demand of Performance and Cost Modeling can be played to greatest extent.
Claims (7)
1. for a protector for alive circuit, it is characterized in that: described protector comprises thermal insulation layer, insulating barrier, screen, flame-retardant layer, wear-resisting watertight composition from inside to outside successively; Wherein said thermal insulation layer adopts alumina silicate fibre and silica fibrage to form, silica aerogel particles is filled with in the space that braiding is formed afterwards, alumina silicate fibre after filling and silica fibrage thing surface coverage have high-temperaure coating, described high-temperaure coating comprises with the methyl vinyl silicone rubber of 80 ~ 90 parts for base-material, and on above-mentioned base-material, be added with white carbon 50 ~ 60 parts, alumina particle 30 ~ 40 parts, zirconium dioxide 15 ~ 20 parts, esters of silicon acis 5 ~ 6 parts, ceramic 10 ~ 15 parts, adhesion promoter 5 ~ 8 parts.
2. the protector for alive circuit according to claim 1, is characterized in that: described insulating barrier is made up of the composition of following weight portion: high density polyethylene (HDPE) 45 ~ 65 parts, fire retardant 10 ~ 20 parts, pentaerythrite three (methyl) acrylate 3 ~ 6 parts, age resister 5 ~ 10 parts.
3. the protector for alive circuit according to claim 2, is characterized in that: described screen adopts diameter to be that the stainless steel wire of 0.2 ~ 0.6mm and the high strength glass fiber of 0.2 ~ 0.6mm are woven into staggered superposition pressing after woven fabric.
4. the protector for alive circuit according to claim 3, is characterized in that: described adhesion promoter adopts compound bifunctional silane.
5. the protector for alive circuit according to claim 4, is characterized in that: described fire retardant adopts organic fire-retardant or inorganic combustion inhibitor.
6. the protector for alive circuit according to claim 5, is characterized in that: described inorganic combustion inhibitor adopts ammonium dihydrogen phosphate.
7. the protector for alive circuit according to claim 5, is characterized in that: described organic fire-retardant adopts tributyl phosphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510586477.7A CN105206343B (en) | 2015-09-16 | 2015-09-16 | Protective device for live lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510586477.7A CN105206343B (en) | 2015-09-16 | 2015-09-16 | Protective device for live lines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105206343A true CN105206343A (en) | 2015-12-30 |
| CN105206343B CN105206343B (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510586477.7A Expired - Fee Related CN105206343B (en) | 2015-09-16 | 2015-09-16 | Protective device for live lines |
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| Country | Link |
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| CN (1) | CN105206343B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856639A (en) * | 2016-05-23 | 2016-08-17 | 长葛市恒瑞电瓷电器有限公司 | Insulation bushing |
| CN112420250A (en) * | 2020-11-11 | 2021-02-26 | 江苏铭阳线缆有限公司 | Novel cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004339451A (en) * | 2003-05-19 | 2004-12-02 | Jsr Corp | Flame-retardant rubber composition, rubber product and wire-covering material |
| CN103013129A (en) * | 2012-12-21 | 2013-04-03 | 无锡江南电缆有限公司 | Irradiation type ceramic fire-resistant silicone rubber, preparation method of rubber and application to wires and cables |
| CN203377041U (en) * | 2013-06-07 | 2014-01-01 | 深圳市华创威实业有限公司 | Silicone rubber glass bushing capable of protecting electric appliance circuit |
| CN104466783A (en) * | 2013-09-18 | 2015-03-25 | 国家电网公司 | Protecting device for alive circuit and insulating protection method |
-
2015
- 2015-09-16 CN CN201510586477.7A patent/CN105206343B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004339451A (en) * | 2003-05-19 | 2004-12-02 | Jsr Corp | Flame-retardant rubber composition, rubber product and wire-covering material |
| CN103013129A (en) * | 2012-12-21 | 2013-04-03 | 无锡江南电缆有限公司 | Irradiation type ceramic fire-resistant silicone rubber, preparation method of rubber and application to wires and cables |
| CN203377041U (en) * | 2013-06-07 | 2014-01-01 | 深圳市华创威实业有限公司 | Silicone rubber glass bushing capable of protecting electric appliance circuit |
| CN104466783A (en) * | 2013-09-18 | 2015-03-25 | 国家电网公司 | Protecting device for alive circuit and insulating protection method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105856639A (en) * | 2016-05-23 | 2016-08-17 | 长葛市恒瑞电瓷电器有限公司 | Insulation bushing |
| CN112420250A (en) * | 2020-11-11 | 2021-02-26 | 江苏铭阳线缆有限公司 | Novel cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105206343B (en) | 2017-01-18 |
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