CN102904192A - Heat shield and method for carrying out live working on heat-resistant wires by using same - Google Patents
Heat shield and method for carrying out live working on heat-resistant wires by using same Download PDFInfo
- Publication number
- CN102904192A CN102904192A CN2012103852998A CN201210385299A CN102904192A CN 102904192 A CN102904192 A CN 102904192A CN 2012103852998 A CN2012103852998 A CN 2012103852998A CN 201210385299 A CN201210385299 A CN 201210385299A CN 102904192 A CN102904192 A CN 102904192A
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- China
- Prior art keywords
- heat
- heat shield
- operating personnel
- main body
- resisting wire
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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.)
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
Abstract
The invention discloses a heat shield and a method for carrying out live working on heat-resistant wires by using the heat shield; the heat shield for the live working of the heat-resistant wires comprises a heat shield main body (1) and a pair of ''U''-shaped hooks (2), wherein a cross section of the heat shield main body (1) is of a ''U'' shape; the pair of the ''U''-shaped hooks (2) are arranged on inner walls at both ends of the heat shield main body (1); and the lower ends of the hooks (2) are connected with insulated handles (4). The heat shield and the method provided by the invention have the following beneficial effects: when the heat shield is used for carrying out the live working on the heat-resistant wires on an electric transmission line, the heat insulation and the protection can be conducted on operating personnel, thereby preventing the operating personnel from being affected by the high temperature and maintaining electric potential between the operating personnel and the high-temperature wires to be equal and the potential difference to be zero without harm to human body; and meanwhile, the structure is simple and the safety performance is good; and the method for carrying out the live working on the heat-resistant wires by using the heat shield is simple in operation and saves the time for learning the operating procedures.
Description
Technical field
The present invention relates to a kind of heat shield and be used for the method carry out 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 invention is to provide a kind of heat shield, when being used for the live line working of 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.
For addressing the above problem, the technical solution used in the present invention is:
A kind of heat shield comprises that the cross section is the heat shield main body of " U " shape and the hook that is arranged on a pair of " U " shape on the inwall of heat shield main body two ends, 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 a further improvement on the present invention, 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 a further improvement on the present invention, 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 invention, described hook is arranged on the heat shield main body by bolt.Bolted mode is convenient to dismantle and change the parts of heat shield, and connective stability is good, and security performance is higher.
Another object of the present invention provides a kind of method that adopts heat shield to carry out the heat-resisting wire live line working, and the method is simple, can be more convenient it is carried out live line working in the heat-resisting wire temperature during up to 240 degrees centigrade.
The present invention adopts heat shield to carry out the method for heat-resisting wire live line working, comprises the steps:
1) operating personnel dresses screening clothing;
2) connect screening clothing and heat shield with the potential transfer line;
3) operating personnel by the insulation delivery vehicle near heat-resisting wire;
4) heat shield is placed on the heat-resisting wire, makes human body and heat-resisting wire form equipotential;
5) after the potential transfer, the operating personnel leans on heat shield and carries out live line working.
The present invention adopts heat shield to carry out the few and easy enforcement of utilization step of the method for heat-resisting wire live line working, and the operating personnel can not be used on the learning performance program and cost a lot of money the time.
As further improvement, the operating personnel when operation and heat-resisting wire keep distance more than 10 centimetres.Operating personnel and wire keep being no less than 10 centimetres distance, and fail safe is better.
In sum, the invention has the beneficial effects as follows: when the live line working of transmission line 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 the operating personnel to equate with current potential between high temperature wire, potential difference is zero therebetween, can not damage human body, simultaneously the present invention is simple in structure, and security performance is good.It is simple to operate that the present invention adopts heat shield to carry out the method for heat-resisting wire live line working, saves the time of learning performance program.
Description of drawings
Fig. 1 is the structural representation that the present invention is used for the heat shield of heat-resisting wire live line working.
Fig. 2 is that the P of Fig. 1 is to view.
Fig. 3 is the use view of the present invention's heat shield of being used for the heat-resisting wire live line working.
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 the specific embodiment of the present invention is described further.
Heat shield as depicted in figs. 1 and 2, comprise that the cross section is heat shield main body 1 and a pair of hook 2 that is fixedly installed on respectively a pair of " U " shape on the heat shield main body 1 two ends inwall by bolt 6 of " U " shape, 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, and screening clothing is connected by the potential transfer line with the binding post 5 of heat shield.The operating personnel by the insulation delivery vehicle near high temperature wire.
As shown in Figure 3 and Figure 4 when using heat shield, wear the operating personnel of a complete set of screening clothing clothes at distance heat-resisting wire 7 about 20 ~ 30cm places, 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 is 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 present invention only is better case study on implementation of the present invention, is not to limit practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be as technology category of the present invention.
Claims (6)
1. heat shield 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. heat shield according to claim 1, it is characterized in that: described hook (2) is connected by connecting rod (3) with insulated handle (4).
3. heat shield according to claim 2, it is characterized in that: described connecting rod (3) is provided with binding post (5).
4. heat shield according to claim 3, it is characterized in that: described hook (2) is installed on the heat shield main body (1) by bolt (6).
5. the method that adopts the described heat shield of claim 1 to 4 any one to carry out the heat-resisting wire live line working is characterized in that: comprise the steps:
1) operating personnel dresses screening clothing;
2) connect screening clothing and heat shield with the potential transfer line;
3) operating personnel by the insulation delivery vehicle near heat-resisting wire;
4) heat shield is placed on the heat-resisting wire, makes human body and heat-resisting wire form equipotential;
5) after the potential transfer, the operating personnel leans on heat shield and carries out live line working.
6. method as claimed in claim 5 is characterized in that: the operating personnel when operation and heat-resisting wire keep distance more than 10 centimetres.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210385299.8A CN102904192B (en) | 2012-10-12 | 2012-10-12 | Heat shield and method for carrying out live working on heat-resistant wires by using same |
| PCT/CN2013/083753 WO2014056392A1 (en) | 2012-10-12 | 2013-09-18 | Heat shield and method for carrying out live-working on heat-resistant conductor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210385299.8A CN102904192B (en) | 2012-10-12 | 2012-10-12 | Heat shield and method for carrying out live working on heat-resistant wires by using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102904192A true CN102904192A (en) | 2013-01-30 |
| CN102904192B CN102904192B (en) | 2015-05-13 |
Family
ID=47576308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210385299.8A Active CN102904192B (en) | 2012-10-12 | 2012-10-12 | Heat shield and method for carrying out live working on heat-resistant wires by using same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102904192B (en) |
| WO (1) | WO2014056392A1 (en) |
Cited By (2)
| 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 |
| CN104779003A (en) * | 2015-04-29 | 2015-07-15 | 国网河南省电力公司检修公司 | Heat insulation type wire insulation shield |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026291A (en) * | 2007-03-16 | 2007-08-29 | 辽宁省电力有限公司鞍山供电公司 | Foldable synthetic insulator special ladder |
| CN201838943U (en) * | 2010-10-19 | 2011-05-18 | 陈静妹 | Electric cable vulcanizing machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2396552Y (en) * | 1999-11-15 | 2000-09-13 | 邢树申 | Protective cable hook |
| JP4438091B2 (en) * | 2004-09-30 | 2010-03-24 | ニチアス株式会社 | Fireproof protective structure for cable and fireproof protective unit for cable |
| CN101227068B (en) * | 2007-12-27 | 2010-06-02 | 国网电力科学研究院 | electric potential transferring stick for AC super or ultra high voltage line live working |
| JP5714275B2 (en) * | 2010-09-06 | 2015-05-07 | 中国電力株式会社 | Insulation protection cover for indirect hot-wire construction |
| CN102904192B (en) * | 2012-10-12 | 2015-05-13 | 江苏省电力公司南京供电公司 | Heat shield and method for carrying out live working on heat-resistant wires by using same |
| CN202840368U (en) * | 2012-10-12 | 2013-03-27 | 江苏省电力公司南京供电公司 | Heat shield for hot-line work of heat-resisting guide line |
-
2012
- 2012-10-12 CN CN201210385299.8A patent/CN102904192B/en active Active
-
2013
- 2013-09-18 WO PCT/CN2013/083753 patent/WO2014056392A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101026291A (en) * | 2007-03-16 | 2007-08-29 | 辽宁省电力有限公司鞍山供电公司 | Foldable synthetic insulator special ladder |
| CN201838943U (en) * | 2010-10-19 | 2011-05-18 | 陈静妹 | Electric cable vulcanizing machine |
Cited By (2)
| 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 |
| CN104779003A (en) * | 2015-04-29 | 2015-07-15 | 国网河南省电力公司检修公司 | Heat insulation type wire insulation shield |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102904192B (en) | 2015-05-13 |
| WO2014056392A1 (en) | 2014-04-17 |
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