220V和380V 电压的区别是什么？_百度知道
Apr 14, 2019 · 220V和380V 电压的唯一区别就是电压等级不同。 220V电压指的是火线与零线之间的电压,是目前我国居民最常用的标准电压的有效值。
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Nov 10, 2025 · Vietnam doesn''t use one common plug type, so you''re likely to encounter a couple of different kinds of electrical sockets while you''re
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三相220V和单相220v区别在哪？
Oct 10, 2024 · 三相220V和单相220v区别在哪？三相220V和单相220V的主要区别包括以下几点：1. 电压差异：三相220V系统中的线电压是220V,而单相220V系统中的线对地电压为220V
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May 25, 2023 · 另外三相电压220V,,火线于火线之间的220V,这个三相在国内很少见,但是在国外有些地方比如墨西哥、日本等单相是127V,三相电就是220V。
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"220V~ "是什么意思？_百度知道
Oct 6, 2019 · "220V~ "是什么意思？ 220v是220伏特的意思,V是电学中电压的单位,是我国家庭用电的电压单位,也是我们家庭常用的所谓交流电压,220v标在电器设备上,意思是说该设备
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为什么中国使用220V交流电,而有的国家却使用110V？
指正,现为220V）、英国、德国、法国、意大利、澳大利亚、印度、新加坡、泰国、荷兰、西班牙、希腊、奥地利、菲律宾、挪威等约120个国家和地区使用是交流220V电压区域； 而美国、
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中国的电压为什么是220V?
Jun 10, 2025 · 下面咱们在一起回顾一下关于电压的历史路程：220v与110v的发展的故事 首先还是要从交直大战的那两位主人翁说起,在电力使用的早期历史中,爱迪生的通用电力公司首先在
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为什么电压是220v而不是200v,求物理解释？
May 14, 2024 · 旧中国生产力低下、经济不行,能减少一点损耗、减少一点铜等金属的消耗,当然是很好的,220V容易被供电运营商接受。 清光绪十六年（1890）上海开始使用白炽灯,电压
直流220v和交流220v区别是什么 (附220v交流转直流220伏
Nov 20, 2024 · 直流220V和交流220V在电压特性、电流方向、电源类型和电能传输距离等方面存在明显的区别。 同时,通过合适的电路设计,可以将交流220V转换为直流220伏电路,满足
单相 220V 和两相 220V 的区别是什么？
Nov 25, 2022 · 单相220V就是指常见的一火一零的家用电。 这个好理解,就是三相线一零线的供电电路中取一相线+零线,它们间的电压是220V（380/√3,可以自己查找求解过程）。