Taipower burying power lines to protect electricity supply in disasters
Taipower burying power lines to protect electricity supply in disasters
2026-07-02
The typhoons that ravage Taiwan in the summer and autumn months often knock out power to homes and businesses in their path. High winds downing power lines and posts are also a concern as extreme weather becomes more common, even while power demand surges. Burying power lines is therefore a priority in many cities. FTV recently went 18 stories underground to give you an up-close look at how these teams are safeguarding power supplies for the future.
Jumbles of power lines criss-crossing old alleys like this are often a target of criticism.
To beautify communities and protect the supply of electricity, Taipower in the past few years has been hard at work burying power lines. FTV recently visited to give you an exclusive look at how it’s done.
- You do this every day. You go 10 stories below ground and climb back up. There’s no elevator.
- There’s no elevator.
Descending the staircase to a depth of 55 meters—equivalent to at least 18 stories—leads to the construction site. A cleanroom sealed with transparent PVC film minimizes intrusion by impurities that could compromise conductivity.
Lin Kuan-wen
Taipower contractor
When dust gets in, it first affects conductivity. When the voltage is this high, the particles may heat up as they pass through and in the most extreme cases could ignite.
They’re not only working underground, but also below the Keelung River, facing the constant threats of fire, water leaks, and toxic gas buildup. Air quality must be monitored around the clock to keep everyone safe.
Lin Kuan-wen
Taipower contractor
This one is a carbon dioxide meter. It measures concentrations of CO2 in the area. This one’s called a four-in-one gas monitor. It displays measurements for hydrogen sulfide, carbon monoxide, oxygen concentrations, and combustible gas levels. An alarm will sound when it detects an abnormal reading.
Tsai Chih-meng
Taipower vice president
The work is done underground, so usually there’s a low accident rate.
Currently, nearly half of power lines in the country have been buried underground. In the outlying Penghu County where wind fortifications are essential, more than 90% have been buried. However, getting that figure up to 100% will require careful work to achieve the dual aims of disaster mitigation and aesthetic improvement.
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#Taipower #powercables #powerlines #electricity #powersupply #underground #utilities #exclusive
電纜地下化! 免遭颱風侵襲 改善市容又防災
2026-07-02
台灣夏秋季節，時常發生颱風，各地傳出停電外，電線桿遭吹倒造成的意外也頻繁上演，面對極端氣候、與用電需求持續攀升，電纜地下化成為城市發展的重要選項，民視採訪團隊獨家深入地底18層樓，帶您直擊地下電纜設備與施工作業。
巷弄裡的老舊公寓，抬頭可見密密麻麻電纜線，交錯在一起，屢屢引起詬病。
為了改善都市美觀以及供電安全，台電積近年極推動電纜地下化，民視採訪團隊獨家帶您直擊地下電纜大揭密。
- 你們每天施工，都是這樣往下走十樓，然後再往上爬十樓，沒有電梯
- 沒有電梯
沿著階梯不斷向下走，最深可達55公尺，相當於至少18層樓，才會來到施工地點，以PVC透明膜隔離的無塵室，要降低現場的雜質侵入，影響導電性能。
[[台電包商 林貫文]]
“灰塵進來的時候，它第一個會影響我們的導電性能，在電壓這麼強，通過的時候，可能這些東西會加熱，甚至再嚴重一點產生燃燒”
不只位於地底下，更在基隆河下方，又怕失火、又怕漏水，還怕毒氣累積，必須隨時監測空氣狀況，確保人員安全。
[[台電包商 林貫文]]
“像這一台就是二氧化碳偵測器，測試現場的二氧化碳濃度，這一台它就叫四用氣體偵測器，上面會顯示測硫酸氫，一氧化碳、氧氣濃度，跟可燃性氣體的濃度，(異常的時候)它會做出警示”
[[台電副總經理 蔡志孟]]
“地下化是走在地下，所以它通常，事故的機率就比較小”
目前全國有近五成的電纜已經地下化，外島澎湖因為需要抗風，地下電纜更是超過90%，不過實際執行面也要多考量，才能真正達到減災美觀目的。
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