WO2014056392A1 - Heat shield and method for carrying out live-working on heat-resistant conductor with same - Google Patents

Heat shield and method for carrying out live-working on heat-resistant conductor with same Download PDF

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Publication number
WO2014056392A1
WO2014056392A1 PCT/CN2013/083753 CN2013083753W WO2014056392A1 WO 2014056392 A1 WO2014056392 A1 WO 2014056392A1 CN 2013083753 W CN2013083753 W CN 2013083753W WO 2014056392 A1 WO2014056392 A1 WO 2014056392A1
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WO
WIPO (PCT)
Prior art keywords
heat
heat shield
operator
working
resistant
Prior art date
Application number
PCT/CN2013/083753
Other languages
French (fr)
Chinese (zh)
Inventor
周炳凌
王勇
宫衍平
王永强
沈民
刘凯
刘庭
肖宾
彭勇
苏梓铭
Original Assignee
国家电网公司
江苏省电力公司南京供电公司
中国电力科学研究院
江苏省电力公司
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Application filed by 国家电网公司, 江苏省电力公司南京供电公司, 中国电力科学研究院, 江苏省电力公司 filed Critical 国家电网公司
Publication of WO2014056392A1 publication Critical patent/WO2014056392A1/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines

Definitions

  • the present invention relates to a heat shield and a method for carrying out live working of a heat resistant wire.
  • the heat-resistant wire has the characteristics of large flow capacity, and can be greatly improved in the transmission capacity of the overhead transmission line.
  • the maximum operating temperature of the heat-resistant wires used in China's transmission lines can reach 240 degrees Celsius.
  • the transmission line using the heat-resistant wire has defects such as insulator damage and wire wear, the power transmission and maintenance work is generally not allowed due to the large line transmission capacity. Therefore, the live working is safe and stable for the transmission line of the heat-resistant wire. especially important.
  • the maximum operating temperature of the conductors does not exceed 70 degrees Celsius.
  • the maximum operating temperature of the conductors can reach 240 degrees Celsius, and thermal insulation protection is required to prevent workers from being affected by high temperatures.
  • An object of the present invention is to provide a heat shield for protecting a worker from heat insulation during a live line of a heat-resistant wire to prevent an operator from being affected by high temperatures.
  • a heat shield includes a heat shield body having a "U” shape in cross section and a pair of "U” shaped hooks disposed on inner walls of both ends of the heat shield body, the lower end of the hook being connected to the insulating handle.
  • the heat shield forms an effective isolation between the high temperature conductor and the operator, preventing the operator from directly contacting the high temperature conductor and preventing the high temperature conductor from causing injury to the operator.
  • the hook and the insulating handle are connected by a connecting rod.
  • Connecting rod The shielding device worn by the operator is connected to the potential transfer line to keep the operator and the conductor at the same potential to prevent the potential difference from harming the human body.
  • the connecting rod is provided with a binding post.
  • the terminal is arranged to facilitate the connection of the potential transfer line and the connecting rod, and the operability is stronger.
  • the hook ⁇ bolt is disposed on the heat shield body.
  • connection is easy to remove and replace the parts of the heat shield, and the connection stability and safety are higher.
  • Another object of the present invention is to provide a method for carrying out live working of a heat-resistant wire by using a heat shield, which is simple and easy, and can be conveniently charged when the temperature of the heat-resistant wire is as high as 240 degrees Celsius.
  • the invention adopts a heat shield to carry out the charging operation of the heat-resistant wire, and comprises the following steps:
  • the method of the present invention for using the heat shield to carry out the live working of the heat-resistant wire is less frequently and easy to implement, and the operator does not have to spend too much time learning the operating procedure.
  • the operator maintains a distance of more than 10 cm from the heat-resistant wires during work.
  • the operator maintains a distance of not less than 10 cm from the wire and is safer.
  • the beneficial effects of the present invention are: Insulating and protecting the workers during the live working of the heat-resistant wires of the transmission line, preventing the workers from being affected by the high temperature, and keeping the points between the workers and the high-temperature wires equal. The potential difference is zero, and it will not cause harm to the human body.
  • the invention has simple structure and good safety performance.
  • the method of the invention adopts the heat shield to carry out the live working of the heat-resistant wire, and the operation is simple, and the time for learning the operation program is saved.
  • FIG. 1 is a schematic view showing the structure of a heat shield for charging a heat-resistant wire according to the present invention.
  • Figure 2 is a P-direction view of Figure 1.
  • Fig. 3 is a schematic view showing the state of use of the heat shield for the live working of the heat-resistant wire of the present invention.
  • Figure 4 is a view taken along the line A in Figure 3 .
  • the heat shield shown in Figures 1 and 2 includes a heat shield body 1 having a U-shaped cross section and a pair of points
  • a pair of "U"-shaped hooks 2 are fixedly disposed on the inner walls of the two ends of the heat shield body 1, and the lower end of the hooks 2 is connected to the insulating handle 4 through the connecting rod 3.
  • the connecting rod 3 is provided on the connecting rod 3 Terminal 5.
  • the operator When the electrified operator needs to perform equipotential operation on the heat-resistant wire 7 of the 220kV transmission line with high temperature, the operator wears a full set of shielding clothes to carry the heat shield, and the terminal 5 of the shielding suit and the heat shield is connected by the potential transfer line. .
  • the operator approaches the high temperature wire through an insulated vehicle.
  • the operator wearing the full shield garment is placed at a distance of about 20 to 30 cm from the heat-resistant wire 7, and the heat-insulating cover is placed in the heat-resistant cover.
  • the terminal 5 of the heat shield is connected to the shielding suit on the operator through the potential transfer line, so that the human body and the heat-resistant wire 7 form an equipotential, that is, the potential difference between the two is zero, that is, the voltage is zero. In order to avoid the damage caused by high voltage to the workers.
  • the equipotential operator can directly rely on the heat shield when working, and the worker's heat-resistant wire 7 is basically kept at a distance of more than 10 cm.
  • the operator and the heat-resistant wire 7 fsj have a heat insulating object such as a gas and a heat shield, so that the operator can be prevented from being affected by the high temperature.
  • the shielding gloves worn by the operator have the ability to insulate for a short period of time.
  • the operator can work intermittently with the heat-resistant wire 7 and the high-temperature fittings in the vicinity, or use a hand tool such as a wrench to indirectly heat the heat-resistant wire 7 and its nearby high-temperature fittings. operation.

Abstract

Disclosed are a heat shield and a method for live-working on a heat-resistant conductor with the heat shield, the heat shield comprising a heat shield main body (1) of a "U"-shaped cross section, and a pair of "U"-shaped hooks (2) provided on the inner wall of two ends of the heat shield main body, wherein insulation handles (4) are connected at the lower end of the hooks. When the live-working on the heat-resistant conductor is carried out, a thermally insulating protection can be provided for an operator so as to prevent the operator under the influence of high temperature and keep the electric potentials of the operator and the high temperature conductor equal, so that no harm comes to the human body. The heat shield has a simple structure and good safety performance. The method for carrying out live-working on a heat-resistant conductor utilizing the heat shield has simple operation, and the working processes and working time can be saved.

Description

说明书  Instruction manual
一种隔热罩及其用于进行耐热导线带电作业的方法 Heat shield and method for carrying same on heat-resistant wire
技术领域 Technical field
本发明涉及一种隔热罩及其用于进行耐热导线带电作业的方法。  The present invention relates to a heat shield and a method for carrying out live working of a heat resistant wire.
背景技术 Background technique
耐热导线具有通流能力大的特点,应用于架空输电线路可以大幅提高其输送 容量。 目 我国输电线路使用的耐热导线的最高运行温度可达 240摄氏度。  The heat-resistant wire has the characteristics of large flow capacity, and can be greatly improved in the transmission capacity of the overhead transmission line. The maximum operating temperature of the heat-resistant wires used in China's transmission lines can reach 240 degrees Celsius.
当采用耐热导线的输电线路出现绝缘子破损、导线磨损等缺陷时, 由于线路 输送容量较大, 一般不允许进行停电检修作业, 因此, 带电作业对保证耐热导线 的输电线路的安全稳定运行显得尤为重要。  When the transmission line using the heat-resistant wire has defects such as insulator damage and wire wear, the power transmission and maintenance work is generally not allowed due to the large line transmission capacity. Therefore, the live working is safe and stable for the transmission line of the heat-resistant wire. especially important.
对于常规导线的输电线路, 导线的最高运行温度不超过 70摄氏度, 带电作 业时, 作业人员无需考虑隔热防护。 而对于耐热导线的输电线路, 导线的最高运 行温度可到 240摄氏度, 需要采用隔热防护, 以防止作业人员受到高温影响。 发明内容  For the transmission line of conventional conductors, the maximum operating temperature of the conductors does not exceed 70 degrees Celsius. When working in power, the operator does not need to consider insulation protection. For power transmission lines with heat-resistant conductors, the maximum operating temperature of the conductors can reach 240 degrees Celsius, and thermal insulation protection is required to prevent workers from being affected by high temperatures. Summary of the invention
本发明的目的是提供一种隔热罩,用于耐热导线的输电线路的带电作业时对 作业人员进行隔热防护, 防止作业人员受到高温的影响。  SUMMARY OF THE INVENTION An object of the present invention is to provide a heat shield for protecting a worker from heat insulation during a live line of a heat-resistant wire to prevent an operator from being affected by high temperatures.
为解决上述问题, 本发明所采取的技术方案是:  In order to solve the above problems, the technical solution adopted by the present invention is:
一种隔热罩, 包括截面为 "U " 形的隔热罩主体和设置在隔热罩主体两端内 壁上一对 "U "形的挂钩, 所述的挂钩下端连接绝缘手柄。 隔热罩在高温导线与 作业人员之间形成有效的隔离, 避免作业人员与高温导线直接接触, 防止高温导 线对作业人员造成伤害。  A heat shield includes a heat shield body having a "U" shape in cross section and a pair of "U" shaped hooks disposed on inner walls of both ends of the heat shield body, the lower end of the hook being connected to the insulating handle. The heat shield forms an effective isolation between the high temperature conductor and the operator, preventing the operator from directly contacting the high temperature conductor and preventing the high temperature conductor from causing injury to the operator.
作为本发明的进一歩改进, 所述的挂钩与绝缘手柄通过连接杆连接。连接杆 作业人员穿戴的屏蔽服 ώ电位转移线连接, 使作业人员与导线保持等电位, 防 止电位差对人体的造成伤害。  As a further improvement of the present invention, the hook and the insulating handle are connected by a connecting rod. Connecting rod The shielding device worn by the operator is connected to the potential transfer line to keep the operator and the conductor at the same potential to prevent the potential difference from harming the human body.
作为本发明的进一歩改进, 所述的连接杆上设有接线柱。设置接线柱方便电 位转移线与连接杆的连接, 可操作性更强。  As a further improvement of the present invention, the connecting rod is provided with a binding post. The terminal is arranged to facilitate the connection of the potential transfer line and the connecting rod, and the operability is stronger.
作为本发明的更进一歩改进, 所述的挂钩 ώ螺栓设置在隔热罩主体上。螺栓  As a further improvement of the present invention, the hook ώ bolt is disposed on the heat shield body. Bolt
替换页 (细则第 26条) 连接的方式便于拆卸和更换隔热罩的零部件, 且连接稳定性好, 安全性能更高。 本发明的另一目的是提供一种采用隔热罩进行耐热导线带电作业的方法,该 方法简单易行,可以较方便的在耐热导线温度高达 240摄氏度时对其进行带电作 业。 Replacement page (Article 26) The connection is easy to remove and replace the parts of the heat shield, and the connection stability and safety are higher. Another object of the present invention is to provide a method for carrying out live working of a heat-resistant wire by using a heat shield, which is simple and easy, and can be conveniently charged when the temperature of the heat-resistant wire is as high as 240 degrees Celsius.
本发明采用隔热罩进行耐热导线带电作业的方法, 包括如下歩骤:  The invention adopts a heat shield to carry out the charging operation of the heat-resistant wire, and comprises the following steps:
1 ) 作业人员穿戴屏蔽服;  1) The operator wears a shielded suit;
2 ) 用电位转移线连接屏蔽服与隔热罩;  2) Connect the shielding suit and the heat shield with a potential transfer line;
3 ) 作业人员通过绝缘运载工具接近耐热导线;  3) The operator approaches the heat-resistant wire through the insulated carrier;
4 ) 将隔热罩放置在耐热导线上, 使人体与耐热导线形成等电位;  4) Place the heat shield on the heat-resistant wire to form an equipotential between the human body and the heat-resistant wire;
5 ) 电位转移后, 作业人员倚靠隔热罩进行带电作业。  5) After the potential is transferred, the operator leans on the heat shield to carry out the charging operation.
本发明采用隔热罩进行耐热导线带电作业的方法的运用歩骤少且容易实施, 作业人员可以不用在学习作业程序上花费太多时间。  The method of the present invention for using the heat shield to carry out the live working of the heat-resistant wire is less frequently and easy to implement, and the operator does not have to spend too much time learning the operating procedure.
作为进一歩的改进,作业人员在作业时与耐热导线保持 10厘米以上的距离。 作业人员与导线保持不少于 10厘米的距离, 安全性更好。  As a further improvement, the operator maintains a distance of more than 10 cm from the heat-resistant wires during work. The operator maintains a distance of not less than 10 cm from the wire and is safer.
综上所述, 本发明的有益效果是: 在输电线路耐热导线带电作业时对作业人 员进行隔热防护, 防止作业人员受到高温的影响, 保持作业人员与高温导线间的 点为相等, 其间电位差为零, 不会对人体造成伤害, 同时本发明结构简单, 安全 性能好。本发明采用隔热罩进行耐热导线带电作业的方法操作简单, 节省学习作 业程序的时间。  In summary, the beneficial effects of the present invention are: Insulating and protecting the workers during the live working of the heat-resistant wires of the transmission line, preventing the workers from being affected by the high temperature, and keeping the points between the workers and the high-temperature wires equal. The potential difference is zero, and it will not cause harm to the human body. At the same time, the invention has simple structure and good safety performance. The method of the invention adopts the heat shield to carry out the live working of the heat-resistant wire, and the operation is simple, and the time for learning the operation program is saved.
附图说明 DRAWINGS
图 1是本发明用于耐热导线带电作业的隔热罩的结构示意图。  BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a heat shield for charging a heat-resistant wire according to the present invention.
图 2是图 1的 P向视图。  Figure 2 is a P-direction view of Figure 1.
图 3是本发明用于耐热导线带电作业的隔热罩的使用状态示意图。  Fig. 3 is a schematic view showing the state of use of the heat shield for the live working of the heat-resistant wire of the present invention.
图 4是图 3的 A向视图。  Figure 4 is a view taken along the line A in Figure 3 .
图中: 1、 隔热罩主体; 2、 挂钩; 3、 连接杆; 4、 绝缘手柄; 5、 接线柱; 6、 螺栓; 7、 耐热导线。  In the figure: 1, the main body of the heat shield; 2, hook; 3, connecting rod; 4, insulated handle; 5, binding posts; 6, bolts; 7, heat-resistant wires.
具体实施方式 detailed description
下面结合附图对本发明的具体实施方式做进一歩的说明。  The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
如图 1和图 2所示的隔热罩, 包括截面为 " U "形的隔热罩主体 1和一对分  The heat shield shown in Figures 1 and 2 includes a heat shield body 1 having a U-shaped cross section and a pair of points
替换页 (细则第 26条) 别 ώ螺栓 6固定设置在隔热罩主体 1两端内壁上一对 " U " 形的挂钩 2, 所述的 挂钩 2下端通过连接杆 3连接绝缘手柄 4, 所述的连接杆 3上设有接线柱 5。 Replacement page (Article 26) A pair of "U"-shaped hooks 2 are fixedly disposed on the inner walls of the two ends of the heat shield body 1, and the lower end of the hooks 2 is connected to the insulating handle 4 through the connecting rod 3. The connecting rod 3 is provided on the connecting rod 3 Terminal 5.
当带电作业人员需要在温度较高的 220kV输电线路耐热导线 7上进行等电 位作业时, 作业人员穿戴全套屏蔽服携带隔热罩, 屏蔽服与隔热罩的接线柱 5 通过电位转移线连接。 作业人员通过绝缘运载工具接近高温导线。  When the electrified operator needs to perform equipotential operation on the heat-resistant wire 7 of the 220kV transmission line with high temperature, the operator wears a full set of shielding clothes to carry the heat shield, and the terminal 5 of the shielding suit and the heat shield is connected by the potential transfer line. . The operator approaches the high temperature wire through an insulated vehicle.
如图 3和图 4所示在使用隔热罩时,衣着全套屏蔽服的作业人员在距离耐热 导线 7约 20〜30cm处, 手持隔热罩的绝缘手柄 4将隔热罩放置在耐热导线 7上, 隔热罩的接线柱 5通过电位转移线与作业人员身上的屏蔽服连接,使人体与耐热 导线 7形成等电位, 即两者之间电位差为零, 也即电压为零, 从而避免高电压对 作业人员造成的伤害。  As shown in Figures 3 and 4, when the heat shield is used, the operator wearing the full shield garment is placed at a distance of about 20 to 30 cm from the heat-resistant wire 7, and the heat-insulating cover is placed in the heat-resistant cover. On the wire 7, the terminal 5 of the heat shield is connected to the shielding suit on the operator through the potential transfer line, so that the human body and the heat-resistant wire 7 form an equipotential, that is, the potential difference between the two is zero, that is, the voltage is zero. In order to avoid the damage caused by high voltage to the workers.
电位转移后, 等电位作业人员作业时可直接依靠在隔热罩上, 此时作业人员 耐热导线 7基本保持 10厘米以上的距离。 此时, 作业人员与耐热导线 7之 fsj 有 气及隔热罩等隔热物体, 可以使作业人员不受高温的影响。作业人员穿戴的 屏蔽手套具有短时间隔热的能力,作业人员可以间断式接触耐热导线 7及其附近 高温金具进行作业,或采用扳手等手工工具间接对耐热导线 7及其附近高温金具 进行作业。  After the potential transfer, the equipotential operator can directly rely on the heat shield when working, and the worker's heat-resistant wire 7 is basically kept at a distance of more than 10 cm. At this time, the operator and the heat-resistant wire 7 fsj have a heat insulating object such as a gas and a heat shield, so that the operator can be prevented from being affected by the high temperature. The shielding gloves worn by the operator have the ability to insulate for a short period of time. The operator can work intermittently with the heat-resistant wire 7 and the high-temperature fittings in the vicinity, or use a hand tool such as a wrench to indirectly heat the heat-resistant wire 7 and its nearby high-temperature fittings. operation.
本发明中所述具体实施案例仅为本发明的较佳实施案例而已,并非用来限定 本发明的实施范围。 即凡依本发明申请专利范围的内容所作的等效变化与修饰, 都应作为本发明的技术范畴。  The specific embodiments described in the present invention are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. That is, equivalent changes and modifications made in the content of the patent application scope of the present invention should be regarded as the technical scope of the present invention.
26 26

Claims

权利要求书 claims
1、 一种隔热罩, 其特征在于: 包括截面为 "U"形的隔热罩主体(1 )和设置 在隔热罩主体(1 )两端内壁上的一对 "U"形挂钩 (2), 所述的挂钩 (2)下端连 接绝缘手柄 (4)。 1. A heat shield, characterized by: including a heat shield main body (1) with a "U"-shaped cross section and a pair of "U"-shaped hooks (1) provided on the inner walls of both ends of the heat shield main body (1). 2), the lower end of the hook (2) is connected to the insulating handle (4).
2、 根据权利要求 1所述的隔热罩, 其特征在于: 所述的挂钩 (2) 与绝缘手 柄 (4) 通过连接杆 (3 ) 连接。 2. The heat shield according to claim 1, characterized in that: the hook (2) and the insulating handle (4) are connected through a connecting rod (3).
3、 根据权利要求 2所述的隔热罩, 其特征在于: 所述的连接杆 (3 ) 上设有 接线柱 (5 )。 3. The heat shield according to claim 2, characterized in that: the connecting rod (3) is provided with a terminal (5).
4、根据权利要求 3所述的隔热罩, 其特征在于: 所述的挂钩(2) 由螺栓(6) 安装在隔热罩主体 (1 ) 上。 4. The heat shield according to claim 3, characterized in that: the hook (2) is installed on the heat shield main body (1) by bolts (6).
5、采用权利要求 1至 4任意一项所述的隔热罩进行耐热导线带电作业的方法, 其特征在于: 包括如下步骤: 5. The method of using the heat shield according to any one of claims 1 to 4 to perform live work on heat-resistant wires, characterized by: including the following steps:
1 ) 作业人员穿戴屏蔽服; 1) Operators wear shielding clothing;
2) 用电位转移线连接屏蔽服与隔热罩; 2) Use potential transfer wires to connect the shielding suit and heat shield;
3 ) 作业人员通过绝缘运载工具接近耐热导线; 3) Operators approach heat-resistant wires through insulated carriers;
4) 将隔热罩放置在耐热导线上, 使人体与耐热导线形成等电位; 4) Place the heat shield on the heat-resistant wire so that the human body and the heat-resistant wire form an equal potential;
5 ) 电位转移后, 作业人员倚靠隔热罩进行带电作业。 5) After the potential transfer, the operator relies on the heat shield to perform live work.
6、 如权利要求 5所述的方法, 其特征在于: 作业人员在作业时与耐热导线保 持 10厘米以上的距离。 6. The method according to claim 5, characterized in that: the operator keeps a distance of more than 10 cm from the heat-resistant wire during operation.
PCT/CN2013/083753 2012-10-12 2013-09-18 Heat shield and method for carrying out live-working on heat-resistant conductor with same WO2014056392A1 (en)

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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
CN104779003B (en) * 2015-04-29 2017-03-08 国网河南省电力公司检修公司 A kind of heat insulation type wire insulation mask

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CN102904192A (en) * 2012-10-12 2013-01-30 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

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CN2396552Y (en) * 1999-11-15 2000-09-13 邢树申 Protective cable hook
JP2006109548A (en) * 2004-09-30 2006-04-20 Nichias Corp Fireproof protection structure and unit for cable
CN101227068A (en) * 2007-12-27 2008-07-23 国网武汉高压研究院 Equipotential access method of alternating current ultra / super high-tension line live-line work and electric potential transferring stick
JP2012060703A (en) * 2010-09-06 2012-03-22 Chugoku Electric Power Co Inc:The Insulating protective cover for indirect hot-line work
CN102904192A (en) * 2012-10-12 2013-01-30 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

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