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BS EN IEC 61557-4:2021
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Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures-Resistance of earth connection and equipotential bonding
交流1000V和直流1500V以下低压配电系统的电气安全.保护措施的试验、测量或监测设备
IEC 61557的本部分规定了适用于测量接地导体、保护接地导体和等电位连接导体(包括其连接和端子)电阻的设备的要求,并显示了测量值或极限值。购买本文件时可获得的所有当前修订均包含在购买本文件中。
This part of IEC 61557 specifies the requirements applicable to equipment for measuring the resistance of earth conductors, protective earth conductors and conductors for equipotential bonding, including their connections and terminals, with an indication of the measured value or an indication of the limits.All current amendments available at time of purchase are included with the purchase of this document.