An earthing device of overtension protection will be introduced.
并详细介绍了作者设计的一种过电压保护接地装置。
So the loop network-earthing device must be designed in combination with building characters and the earthing resistance can be estimated with a simplified formula.
其环网接地装置必须结合建筑物特点进行设计，接地电阻可用简化公式估算。
The electricity earthing device belongs to a shelter engineering, the key chains in design, construction and acceptance must be in accordance with relevant standards and codes.
电气接地装置属隐蔽工程，设计、施工和验收各环节均需严格规范。
Electric equipment, earthing device and lighting etc. for production equipments, circulating water field, area for tanks, transformer station, central control room and other places.
生产装置、循环水场、罐区、变电站、中控室和其他场所的电气设备、接地设施和照明等。
The earthing switch in high-voltage switchgear is a kind of mechanical earthing device used at the time of maintenance and repair to insure the safety of personnel.
高压开关柜中的接地开关是作为检修时，保证人身安全，用于接地的一种机械接地装置。
The earthing switch in high-voltage switchgear is a kind of mechanical earthing device used at the time of maintenance and repair to insure the safety of personnel.
高压开关柜中的接地开关是作为检修时，保证人身安全，用于接地的一种机械接地装置。
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