圓山站與大同大學之間的高压电塔(已移除)]]
电线桿,通常由木材或鋁合金製成, 是用来把电缆架起以方便电力或电信远距离传输的構造物。通常电缆会被高高地架在电线杆上,这可以远离行人、或跨过道路与建筑物。这种用电线杆架起电缆传输电的方法成本较低,所以应用规模非常大,几乎有电力供应的地方就会出现电线杆。一般居住点里电线杆会用水泥制成柱状立在路边,早期或臨時性設置會使用木頭代替,有时会以钢丝拉扯辅佐以防电线杆倒下;而用铁架制成的电线杆多出现在郊外,而在郊外有种特别高大的电线杆一般称为高压电塔,它用于架起主力电网的高压供电电缆。
電線桿除了架設電力或電信用纜線外,還可能會附掛交通標誌、交通號誌、基地台、路燈及廣告看板等物。
電線和電纜在電線桿上架空佈線,這是一種廉價的方式,可以使電線和電纜與地面絕緣,並且不會妨礙人和車輛。
電線桿和相關結構由一些被認為是一種形式的視覺污染,且會佔用空間。所以有些地方,特別是人口密集的區域才會改放置地下,然而埋設於地下的電纜成本相當昂貴。
參見
- 電力座標
- 架空電纜
參考文獻
外部連結
- [https://web.archive.org/web/20181122133325/http://www.telegraphpoleappreciationsociety.org/ The Telegraph Pole Appreciation Society]
- [https://web.archive.org/web/20120428062447/http://www.elp.com/index/display/article-display/279131/articles/utility-automation-engineering-td/volume-11/issue-10/features/getting-equipped-utility-poles.html Article on Utility-Telecom Joint Use of Poles]
- [https://web.archive.org/web/20160807091957/http://www.photovault.com/Link/Industry/Construction/ElectricTelephone/ICEVolume01.html Lots of photographs]
- [https://web.archive.org/web/20171213064509/http://troyb.net/portfolio/poles.html Photographs of Various U.S. Utility Poles]
- [https://web.archive.org/web/20190604081515/https://www.myinsulators.com/hungary/ Hungarian Telephone Poles]
- [https://web.archive.org/web/20180910150548/http://annsgarden.com/poles/poles.htm Utility Poles @ Ann's Garden]
- [https://web.archive.org/web/20160304074115/http://www.pmcpole.com/documents/inspection/methods.aspx Wood Utility Pole Inspection Methods]
- [https://web.archive.org/web/20150618173912/http://enviroliteracy.org/article.php/1311.html Wood Utility Pole Life Cycle]
- [https://web.archive.org/web/20180710155209/http://www.myinsulators.com/ukinsulators/pole.htm A photo collection of pole routes throughout the UK and abroad]
- [http://www.AWPA.com American Wood Protection Association]
- [https://web.archive.org/web/20121016044234/http://www.usda.gov/rus/electric/ USDA Rural Development's Electric Programs]
- [https://web.archive.org/web/20190620143249/https://telecom-info.telcordia.com/site-cgi/ido/docs.cgi?ID=SEARCH&DOCUMENT=GR-60& GR-60, Generic Requirements for Wooden Utility Poles]
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