159. 美国为何不用220伏电压? episode artwork

EPISODE · Jul 27, 2025 · 9 MIN

159. 美国为何不用220伏电压?

from 知为谁 · host 知为谁

此文章解释了为什么美国和世界上其他三分之一的国家使用110/120伏电压,而其他三分之二的国家则使用220/230伏电压。文章从爱迪生三线制系统的引入开始,该系统旨在通过平衡两个110伏发电机之间的电流来提高效率并节省铜线。文章随后讨论了钨丝灯泡的发明及其对电压标准在欧洲和美国产生不同影响的原因。最后,文章探讨了芝加哥的快速发展和摩天大楼的兴起如何推动了美国对电力的巨大需求,巩固了其110伏的标准,与全球其他地区形成了对比。内容来源:https://kathylovesphysics.com/why-doesnt-the-us-use-220v/

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159. 美国为何不用220伏电压?

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