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Back四川500千伏洪板一线完成改造,川渝电网输电能力增强
四川500千伏洪板一线完成改造,川渝电网输电能力增强
NEWS
中国新闻网yesterdayEnergy2 min readChinaView translation

四川500千伏洪板一线完成改造,川渝电网输电能力增强

Quick Look

10月1日,四川500千伏洪板一线完成综合改造并恢复投运。该线路全长148.77公里,是川渝电网间的关键联络线。此次改造通过优化施工方案,将原定3天的停电作业压缩至2天,保障了节日期间上万户民众的用电需求。

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Why It Matters

洪板一线于1995年3月投运,是四川与重庆电网间8回联络线之一。由于运行时间超过30年,部分铁塔出现锈蚀老化,需进行技术改造。

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中新网成都10月1日电(刘忠俊 王志奇 曾俊杰)10月1日,四川500千伏洪板一线完成综合改造和检修,线路恢复投运,工程正式竣工。

500千伏洪板一线输电线路四川段。王志奇 摄

洪板一线起于自贡洪沟500千伏变电站,止于重庆板桥500千伏变电站,全长148.77公里,其中四川段55.82公里,是四川电网与重庆电网之间清洁能源输送的8回联络线之一。线路1995年3月投运,至今已运行30多年,部分铁塔锈蚀老化,不再符合最新的运行技术标准,安全运行受到影响。

这次综合改造是2026年国网四川超高压公司秋检的重点工作之一。9月15日起,线路进入停电阶段,施工线路长40多公里,主要任务包括新建铁塔23基、安装耐张绝缘子96串和悬垂绝缘子63串、断紧线及弧垂调整8处、导地线挂点“单改双”6基塔位,还涉及“三跨”(跨越高速铁路、高速公路和重要输电通道)塔位施工等难度较大的项目。

改造中最让人头疼的是停电时间怎么安排。工程涉及110千伏武望线、武叙线等多条供电线路,窗口期只有3天,直接关系到上万户民众的节日用电。为此,国网四川超高压公司提前几个月就派人到现场勘查,主动与内江、自贡相关部门沟通协调,在关键环节、重点区域和特殊作业点增派现场监管和施工人员。最终,原本需要3天的作业被压缩到2天,相关线路赶在节前恢复带电,民众用电和施工安全都没耽误。

据悉,改造完成后,川渝电力输送通道更加安全可靠,两地之间的电能交换能力同步增强。

Open Questions

  • 改造后的具体输电容量提升数值是多少?

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This article was originally published by 中国新闻网.

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