凡对地电压250V及以下为低压，在低压等级中使用的电气装置为低压电气装置。 交流系统中的220V三相四线制的380V/220V中性点接地系统的均属低压。线电压380v虽然超过250V，但相电压（线对地）是220V，所以属低压。【以上出自《电力行业标准》】
...6 中文名称： 低压电气设备.第7-705部分:规定安装或位置的要求.农业或园艺 英文名称： Low-voltage electrical installations - Part 7-705: Requirements for special installations or locations - Agricultura..
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低电压电气设备 Low Voltage Electrical Equipment
高、低压工业电气设备 high and low voltage industrial electrical equipment
铜排在高、低压电气设备中非常重要，而且既起安装作用又起导电作用，所以铜排的加工工艺地位更显重要。
Copper busbars are important in high-low electric apparatus, they have both effect on installation and electric conduction, therefore, the processing technic of copper busbar is important especially.
介绍了美国AIEE和IEEE对电气设备现场调查结果中有关低压电器的可靠性数据；
The reliability data of low voltage electrical apparatus obtained on the basis of field survey of electrical equipments by U. S. AIEE and IEEE were introduced.
面向社会承诺为客户提供高质量、高性能、高精度的高低压电力电气设备。
Ltd. ) is an enterprise specializing in R & D, production and sales of high-voltage and low-voltage power and electric equipment.
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