CN202840368U - Heat shield for hot-line work of heat-resisting guide line - Google Patents
Heat shield for hot-line work of heat-resisting guide line Download PDFInfo
- Publication number
- CN202840368U CN202840368U CN 201220523191 CN201220523191U CN202840368U CN 202840368 U CN202840368 U CN 202840368U CN 201220523191 CN201220523191 CN 201220523191 CN 201220523191 U CN201220523191 U CN 201220523191U CN 202840368 U CN202840368 U CN 202840368U
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- Prior art keywords
- heat
- heat shield
- line
- hot
- operating personnel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 abstract description 12
- 238000009413 insulation Methods 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 238000012216 screening Methods 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a heat shield for hot-line work of a heat-resisting guide line. The heat shield for the hot-line work of the heat-resisting guide line comprises a heat shield main body (1) and a pair of U-shaped hooks (2), wherein the section of the heat shield main body is U-shaped, the pair of U-shaped hooks (2) are arranged on the inner wall of the heat shield main body (1), and an insulated handle (4) is arranged at the lower end of the hook (2). The heat shield for hot-line work of heat-resisting guide line has the advantages of conducting heat insulation protection to operating personnel in the process of the hot-line work of an electric transmission line of the heat-resisting guide line, preventing the operating personnel from being influenced by high temperature, keeping the points between the operating personnel and the high-temperature guided line equal and the potential difference between during the hot-line work zero, and doing no harm to a human body and being simple in structure and good in safety performance.
Description
Technical field
The utility model relates to a kind of heat shield for the heat-resisting wire live line working.
Background technology
Heat-resisting wire has the large characteristics of through-current capability, is applied to overhead transmission line and can significantly improves its transmission capacity.The maximum operating temperature of the heat-resisting wire of at present China's transmission line use can reach 240 degrees centigrade.
When the defective such as insulator breakage, wire wearing and tearing occurring when the transmission line that adopts heat-resisting wire, because the circuit transmission capacity is larger, generally do not allow to carry out the interruption maintenance operation, therefore, live line working seems particularly important to the safe and stable operation of the transmission line of assurance heat-resisting wire.
For the transmission line of conventional wires, the maximum operating temperature of wire is no more than 70 degrees centigrade, and during live line working, the operating personnel need not to consider heat insulation protection.And for the transmission line of heat-resisting wire, the maximum operating temperature of wire can arrive 240 degrees centigrade, needs to adopt heat insulation protection, is subject to temperatures involved to prevent the operating personnel.
Summary of the invention
The purpose of this utility model provides a kind of heat shield for the heat-resisting wire live line working, when being used for the live line working of transmission line of heat-resisting wire the operating personnel is carried out heat insulation protection, prevents that the operating personnel is subject to the impact of high temperature.
For addressing the above problem, technical solution adopted in the utility model is:
A kind of heat shield for the heat-resisting wire live line working comprises that the cross section is the heat shield main body and a pair of " U " shape hook that is arranged on the inwall of heat shield main body two ends of " U " shape, and described hook lower end connects insulated handle.Heat shield forms effectively isolation between high temperature wire and operating personnel, avoid the operating personnel directly to contact with high temperature wire, prevents that high temperature wire from damaging the operating personnel.
As further improvement of the utility model, described hook is connected by connecting rod with insulated handle.Connecting rod is connected by the potential transfer line with the screening clothing that the operating personnel dresses, and makes operating personnel and wire keep equipotential, prevents potential difference damaging human body.
As further improvement of the utility model, described connecting rod is provided with binding post.Binding post is set makes things convenient for being connected of potential transfer line and connecting rod, operability is stronger.
Further improve as of the present utility model, described hook is bolted and is installed on the heat shield main body.Bolted mode is convenient to dismantle and change the parts of heat shield, and connective stability is good, and security performance is higher.
In sum, the beneficial effects of the utility model are: when the live line working of the transmission line of heat-resisting wire the operating personnel is carried out heat insulation protection, prevent that the operating personnel is subject to the impact of high temperature, keep point between operating personnel and high temperature wire for equating, potential difference is zero therebetween, can not damage human body, the utility model is simple in structure simultaneously, and security performance is good.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the P of Fig. 1 is to view.
Fig. 3 is use view of the present utility model.
Fig. 4 is that the A of Fig. 3 is to view.
Among the figure: 1, heat shield main body; 2, hook; 3, connecting rod; 4, insulated handle; 5, binding post; 6, bolt; 7, heat-resisting wire.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
The heat shield that is used for the heat-resisting wire live line working as depicted in figs. 1 and 2, comprise that the cross section is the heat shield main body 1 of " U " shape and a pair ofly is fixedly mounted on a pair of " U " shape hook 2 on the heat shield main body 1 two ends inwall by bolt 6 respectively, described hook 2 lower ends connect insulated handle 4 by connecting rod 3, and described connecting rod 3 is provided with binding post 5.
When the live line working personnel need to be when the higher 220kV transmission line heat-resisting wire 7 of temperature carries out equal potential working, the operating personnel dresses a complete set of screening clothing and carries heat shield, utilizes the insulation delivery vehicle near high temperature wire.Screening clothing is connected by the potential transfer line with the binding post 5 of heat shield.
As shown in Figure 3 and Figure 4 when using the heat shield that is used for the heat-resisting wire live line working, wear the operating personnel of a complete set of screening clothing clothes in distance heat-resisting wire 7 about 20～30 centimeters, the insulated handle 4 of hand-held heat shield is placed on heat shield on the heat-resisting wire 7, the binding post 5 of heat shield is connected with operating personnel's screening clothing with it by the potential transfer line, make human body and heat-resisting wire 7 form equipotential, namely potential difference is zero between the two, also be that voltage is zero, thus the injury of avoiding high voltage that the operating personnel is caused.
After the potential transfer, can directly rely on the heat shield during equal potential working personnel operation, this moment, operating personnel and heat-resisting wire 7 kept the distance more than 10 centimetres substantially.At this moment, between operating personnel and the heat-resisting wire 7 the heat insulation objects such as air and heat shield are arranged, can make the operating personnel not be subjected to the impact of high temperature.The screening glove that the operating personnel dresses has heat insulation ability of short time, the operating personnel can discontinuous contact heat-resisting wire 7 and near high temperature gold utensil thereof carry out operation, or adopt the hand tools such as spanner indirectly heat-resisting wire 7 and near high temperature gold utensil thereof to be carried out operation.
The case of implementation described in the utility model only is better case study on implementation of the present utility model, is not to limit practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be as technology category of the present utility model.
Claims (4)
1. heat shield that is used for the heat-resisting wire live line working, it is characterized in that: comprise that the cross section is the heat shield main body (1) of " U " shape and is arranged on a pair of " U " shape hook (2) on the inwall of heat shield main body (1) two ends, described hook (2) lower end connects insulated handle (4).
2. the heat shield for the heat-resisting wire live line working according to claim 1, it is characterized in that: described hook (2) is connected by connecting rod (3) with insulated handle (4).
3. the heat shield for the heat-resisting wire live line working according to claim 2, it is characterized in that: described connecting rod (3) is provided with binding post (5).
4. according to claim 1 to 3 each described heat shields for the heat-resisting wire live line working, it is characterized in that: described hook (2) is fixedly mounted on the heat shield main body (1) by bolt (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220523191 CN202840368U (en) | 2012-10-12 | 2012-10-12 | Heat shield for hot-line work of heat-resisting guide line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220523191 CN202840368U (en) | 2012-10-12 | 2012-10-12 | Heat shield for hot-line work of heat-resisting guide line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202840368U true CN202840368U (en) | 2013-03-27 |
Family
ID=47951986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220523191 Expired - Fee Related CN202840368U (en) | 2012-10-12 | 2012-10-12 | Heat shield for hot-line work of heat-resisting guide line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202840368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014056392A1 (en) * | 2012-10-12 | 2014-04-17 | 国家电网公司 | Heat shield and method for carrying out live-working on heat-resistant conductor with same |
-
2012
- 2012-10-12 CN CN 201220523191 patent/CN202840368U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014056392A1 (en) * | 2012-10-12 | 2014-04-17 | 国家电网公司 | Heat shield and method for carrying out live-working on heat-resistant conductor with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20151012 |
|
| EXPY | Termination of patent right or utility model |