电击防护中的RCD要求

关于电击防护采用剩余电流动作保护电器RCD，IEC 60364-4-41:2017 

Low-voltage  electrical installations Part  4 – 41：Protection for safety –Protection  against electric shock（低压电气装置 第4-41部分：安全防护  电击防护）4次提到“ 不超过30mA ” RCD的设置要求。

411.1 通则

Where specified, additional protection is provided by a residual current protective device (RCD) with rated residual operating current not exceeding 30 mA in accordance with 415.1.

当有具体规定时，可采用符合415.1条要求的额定剩余电流动作值 不超过30 mA 的剩余电流保护器（RCD）作附加保护措施。

这条要求又转到415.1部分，该部分为附加保护：剩余电流动作保护电器（RCD）。

411.3.3  用于插座和户外移动式设备的供电更进一步的要求

Further requirements for socket-outlets and for the supply of mobile equipment for use outdoors 

Additional protection by means of a residual current protective device (RCD) with a rated residual operating current not exceeding 30 mA shall be provided for 

•  a.c. socket-outlets with a rated current not exceeding 32 A that are liable to be used by ordinary persons and are intended for general use; and 

•  a.c. mobile equipment for use outdoors with a rated current not exceeding 32 A.

额定动作电流 不超过30mA 的剩余电流保护器（RCD）作为附加保护用于：

——供一般人员用普通用途的额定电流不超过32A的交流插座，和

——供户外额定电流不超过32A的交流移动式设备。

此规定在《建筑电气及智能化通用规范》GB 55024-2022第4.6.5条第1、2款有所体现。

411.3.4  在TN和TT系统中用于灯具回路的附加要求

Additional requirements for circuits with luminaires in TN- and TT-systems 

In premises designed to accommodate a single household, additional protection by a residual current protective device (RCD) with a rated residual operating current not exceeding 30 mA shall be provided for a.c. final circuits supplying luminaires.

对于单独住户的房屋向灯具供电的交流终端回路，应提供额定剩余动作电流 不超过30mA 的剩余电流保护器。

此部分规定吸收在《建筑电气及智能化通用规范》GB 55024-2022第4.5.4条，即当采用交流供电的正常照明，其灯具安装高度不大于2.5m时，应设RCD作为附加防护。

415.1.1  在交流系统内装设额定剩余电流 不大于30 mA 的RCD，用以在基本防护失效和/或故障保护或用电不慎时的附加保护措施。

The use of RCDs with a rated residual operating current not exceeding 30 mA , is recognized in a.c. systems as additional protection in the event of failure of the provision for basic protection and/or the provision for fault protection or carelessness by users.

综上所述，用于保护人身安全的电击防护，RCD的额定剩余电流动作值都不应大于30mA。