CN114301003A - A load transfer method for flexible cables between adjacent tension towers - Google Patents
A load transfer method for flexible cables between adjacent tension towers Download PDFInfo
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- 238000012546 transfer Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 6
- 208000032544 Cicatrix Diseases 0.000 claims description 3
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- 238000004064 recycling Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
一种相邻耐张杆塔间软电缆的负荷转接方法。本发明公开了一种基于可重复应用的软电缆的负荷转接方法，涉及电力线路施工方法领域。在新建线路搭接过程中会对已有架空线产生跨接，目前常采用硬电缆进行负荷转接，但硬电缆弯曲半径要求严格，不可任意卷曲收放，多为单次使用，可重复利用率低。本发明过程为：选取可重复应用的软电缆；制作电缆终端；架设软电缆；短时停电，拆除第一耐张杆塔的引流线，与软电缆相连；拆开第二耐张杆塔引流线，与软电缆另一端相连；新建线路搭接结束，拆除软电缆，挂上引流线软电缆用电缆盘回收，可供后续继续使用。本方法通过采用软电缆进行临时负荷转接，可有效实现临时负荷转接电缆的多次重复回收利用连接及架线操作更加简单方便。
A load transfer method for flexible cables between adjacent tension towers. The invention discloses a load transfer method based on a reusable flexible cable, and relates to the field of power line construction methods. The existing overhead lines will be bridged in the process of new line overlapping. At present, hard cables are often used for load transfer. However, the bending radius of hard cables is strict, and cannot be curled and retracted arbitrarily. Most of them are single-use and reusable. rate is low. The process of the invention is as follows: selecting a reusable flexible cable; making a cable terminal; erecting a flexible cable; short-term power failure, removing the drainage line of the first tension tower, and connecting it with the flexible cable; disassembling the drainage line of the second tension tower, Connect to the other end of the flexible cable; after the new line is lapped, remove the flexible cable, hang up the drainage wire and use the cable reel to recover the flexible cable, which can be used for subsequent use. By using the flexible cable for temporary load transfer, the method can effectively realize the repeated recycling and connection of the temporary load transfer cable and the wiring operation is simpler and more convenient.
Description
技术领域technical field
本发明涉及电力线路施工方法领域，尤其涉及一种基于可重复应用的软电缆的负荷转接方法。The invention relates to the field of power line construction methods, in particular to a load transfer method based on a reusable flexible cable.
背景技术Background technique
新建线路交叉跨越已建线路的情况日益增加，在新建线路搭接过程中会对已有架空线产生跨接，为保证安全距离和可靠供电，常采用交联聚乙烯电缆进行负荷转接，但交联聚乙烯电缆弯曲半径要求严格，不可任意卷曲收放，多为单次使用，可重复利用率低。The situation that the new line crosses the existing line is increasing day by day, and the existing overhead line will be crossed during the overlapping process of the new line. In order to ensure a safe distance and reliable power supply, cross-linked polyethylene cable is often used for load transfer, but XLPE cables have strict requirements on the bending radius and cannot be curled and retracted arbitrarily. Most of them are single-use and have low reusability.
发明内容SUMMARY OF THE INVENTION
本发明要解决的技术问题和提出的技术任务是对现有技术方案进行完善与改进，提供一种基于可重复应用的软电缆的负荷转接方法，以实现多次重复使用为目的。为此，本发明采取以下技术方案。The technical problem to be solved and the technical task proposed by the present invention are to perfect and improve the existing technical solutions, and to provide a load switching method based on a reusable flexible cable for the purpose of realizing multiple reuse. Therefore, the present invention adopts the following technical solutions.
一种相邻耐张杆塔间软电缆的负荷转接方法，包括以下步骤：A load transfer method for flexible cables between adjacent tension towers, comprising the following steps:
1)选取可重复应用的软电缆，其长度大于耐张段长度与两耐张杆塔高度之和；1) Select a reusable flexible cable whose length is greater than the sum of the length of the tension section and the height of the two tension towers;
2)制作电缆终端，压接铜鼻子，铜鼻子与耐张线夹尺寸相匹配；2) Make the cable terminal, crimp the copper nose, and the copper nose matches the size of the tension clamp;
3)装设软电缆支撑架，将软电缆由地面引至横担附近，并保持安全距离；3) Install a flexible cable support frame, lead the flexible cable from the ground to the vicinity of the cross arm, and maintain a safe distance;
4)短时停电，拆除第一耐张杆塔的引流线，与软电缆一端接头相连；4) In case of short-term power failure, remove the drainage line of the first tension tower and connect it with one end of the flexible cable;
5)拆开第二耐张杆塔的引流线，与软电缆另一端相连，实现由软电缆继续供电；5) Disassemble the drainage line of the second tension tower and connect it with the other end of the flexible cable, so that the flexible cable can continue to supply power;
6)新建线路搭接结束，拆除软电缆，挂上引流线，负荷继续由原架空线路供电，软电缆用电缆盘回收，可供后续继续使用。6) After the new line is overlapped, the flexible cable is removed, and the drainage line is hung up. The load continues to be powered by the original overhead line, and the flexible cable is recovered with a cable reel for subsequent use.
通过采用软电缆进行临时负荷转接，可有效实现临时负荷转接电缆的多次重复回收利用，并且软电缆的特性，连接及架线操作更加简单方便，有效提升电缆的利用率，降低成本，避免了传统负荷转接电缆由于不能任意弯曲，操作不方便，且不能再次回收使用的问题。By using flexible cables for temporary load transfer, the repeated recycling of temporary load transfer cables can be effectively achieved, and the characteristics of flexible cables, connection and wiring operations are more simple and convenient, effectively improving the utilization rate of cables and reducing costs. It avoids the problems that the traditional load transfer cable cannot be bent arbitrarily, is inconvenient to operate, and cannot be recycled again.
作为优选技术手段：所述的软电缆应符合下列要求：外观检查，应无明显伤痕；绝缘电阻测量，与前次测量应无明显变化；介质损耗角正切，应不大于0.005；局部放电试验:施加1.73U0额定电压，主线芯绝缘放电量不大于10pC。通过这些条件，可有效保证软电缆的质量要求，使之符合临时负荷转接的要求。As the preferred technical means: the flexible cable should meet the following requirements: appearance inspection, there should be no obvious scars; insulation resistance measurement, there should be no obvious change from the previous measurement; dielectric loss tangent, should not be greater than 0.005; partial discharge test: The rated voltage of 1.73U0 is applied, and the insulation discharge of the main wire core is not more than 10pC. Through these conditions, the quality requirements of the flexible cable can be effectively guaranteed to meet the requirements of temporary load transfer.
有益效果：通过采用软电缆进行临时负荷转接，可有效实现临时负荷转接电缆的多次重复回收利用，并且软电缆的特性，连接及架线操作更加简单方便，有效提升电缆的利用率，有效节约资源，降低成本，避免了传统负荷转接电缆由于不能任意弯曲，操作不方便，且不能再次回收使用的问题。Beneficial effects: By using flexible cables for temporary load transfer, the repeated recycling of temporary load transfer cables can be effectively realized, and the characteristics of flexible cables, connection and wiring operations are simpler and more convenient, and the utilization rate of cables can be effectively improved. It effectively saves resources, reduces costs, and avoids the problems that traditional load transfer cables cannot be bent arbitrarily, are inconvenient to operate, and cannot be recycled again.
附图说明Description of drawings
图1是本发明流程示意图。Fig. 1 is a schematic flow chart of the present invention.
图2是本发明软电缆架线施工示意图。FIG. 2 is a schematic diagram of the construction of the flexible cable wiring of the present invention.
图中：1、软电缆；2、第一耐张杆塔；3、第二耐张杆塔；4、引流线；5、新建线路。In the figure: 1. Flexible cable; 2. The first tensile tower; 3. The second tensile tower; 4. Drainage line; 5. New line.
具体实施方式Detailed ways
以下结合说明书附图对本发明的技术方案做进一步的详细说明。The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings.
如图1-2所示，一种相邻耐张杆塔间软电缆的负荷转接方法，其过程包括以下步骤：As shown in Figure 1-2, a load transfer method for flexible cables between adjacent tension towers, the process includes the following steps:
S1.选取可重复应用的软电缆1，其长度大于耐张段长度与两耐张杆塔高度之和；S1. Select a reusable flexible cable 1 whose length is greater than the sum of the length of the tension section and the height of the two tension towers;
S2.制作电缆终端，压接铜鼻子，铜鼻子与耐张线夹尺寸相匹配；S2. Make the cable terminal, crimp the copper nose, and the copper nose matches the size of the tension clamp;
S3.装设软电缆1支撑架，将软电缆1由地面引至横担附近，并保持安全距离；S3. Install the flexible cable 1 support frame, lead the flexible cable 1 from the ground to the vicinity of the cross arm, and maintain a safe distance;
S4.短时停电，拆除第一耐张杆塔2的引流线4，与软电缆1一端接头相连；S4. Short-term power failure, remove the
S5.拆开第二耐张杆塔3的引流线4，与软电缆1另一端相连，实现由软电缆1继续供电；S5. Disassemble the
S6.新建线路5搭接结束，拆除软电缆1，挂上引流线4，负荷继续由原架空线路供电，软电缆1用电缆盘回收，可供后续继续使用。S6. After the
为了保证软电缆1的质量要求，软电缆1应符合下列要求：外观检查，应无明显伤痕；绝缘电阻测量，与前次测量应无明显变化；介质损耗角正切，应不大于0.005；局部放电试验:施加1.73U0额定电压，主线芯绝缘放电量不大于10pC。通过这些条件，可有效保证软电缆1的质量要求，使之符合临时负荷转接的要求。In order to ensure the quality requirements of flexible cable 1, flexible cable 1 should meet the following requirements: visual inspection, there should be no obvious scars; insulation resistance measurement should have no obvious change from the previous measurement; dielectric loss tangent should not be greater than 0.005; partial discharge Test: The rated voltage of 1.73U0 is applied, and the insulation discharge of the main core is not more than 10pC. Through these conditions, the quality requirements of the flexible cable 1 can be effectively guaranteed to meet the requirements of temporary load transfer.
通过采用软电缆1进行临时负荷转接，可有效实现临时负荷转接电缆的多次重复回收利用，并且软电缆1的特性，连接及架线操作更加简单方便，有效提升电缆的利用率，降低成本，避免了传统负荷转接电缆由于不能任意弯曲，操作不方便，且不能再次回收使用的问题。By using the flexible cable 1 for temporary load transfer, the repeated recycling of the temporary load transfer cable can be effectively realized, and the characteristics of the flexible cable 1, the connection and wiring operations are more simple and convenient, effectively improve the utilization rate of the cable, reduce cost, and avoids the problems that the traditional load transfer cable cannot be bent arbitrarily, is inconvenient to operate, and cannot be recycled again.
以上图1-2所示的一种相邻耐张杆塔间软电缆的负荷转接方法是本发明的具体实施例，已经体现出本发明突出的实质性特点和显著进步，可根据实际的使用需要，在本发明的启示下，对其进行形状、结构等方面的等同修改，均在本方案的保护范围之列。The load transfer method of a flexible cable between adjacent tension towers shown in the above Figures 1-2 is a specific embodiment of the present invention, which has embodied the outstanding substantive features and significant progress of the present invention, and can be used according to actual applications. If necessary, under the inspiration of the present invention, equivalent modifications in terms of shape and structure are included in the protection scope of this solution.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040074749A (en) * | 2003-02-18 | 2004-08-26 | 우창전력(주) | Uninterruptable distributing method of single-phase wire using temporary line |
| CN201789232U (en) * | 2010-08-30 | 2011-04-06 | 河南省电力公司郑州供电公司 | Device for handling failure of overhead line without power cut |
| CN203734209U (en) * | 2014-02-17 | 2014-07-23 | 广东电网公司佛山供电局 | Live working device for cable bypass |
| CN106451220A (en) * | 2016-12-01 | 2017-02-22 | 华北电力科学研究院有限责任公司 | Bypass equipment and method for live replacement of equipment on same-tower multi-loop pole tower |
| CN108963875A (en) * | 2018-07-19 | 2018-12-07 | 吉林师范大学 | The method of on-load migration 10KV overhead transmission line |
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- 2021-11-24 CN CN202111405303.8A patent/CN114301003A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040074749A (en) * | 2003-02-18 | 2004-08-26 | 우창전력(주) | Uninterruptable distributing method of single-phase wire using temporary line |
| CN201789232U (en) * | 2010-08-30 | 2011-04-06 | 河南省电力公司郑州供电公司 | Device for handling failure of overhead line without power cut |
| CN203734209U (en) * | 2014-02-17 | 2014-07-23 | 广东电网公司佛山供电局 | Live working device for cable bypass |
| CN106451220A (en) * | 2016-12-01 | 2017-02-22 | 华北电力科学研究院有限责任公司 | Bypass equipment and method for live replacement of equipment on same-tower multi-loop pole tower |
| CN108963875A (en) * | 2018-07-19 | 2018-12-07 | 吉林师范大学 | The method of on-load migration 10KV overhead transmission line |
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