IEC 62640:2011+A1:2015适用于家用和类似用途的带或不带接地触点的两极插座中的剩余电流操作设备（RCD）（SRCD:插座剩余电流设备）。根据本标准，SRCD旨在用于单相系统，例如相对中性点或相对相或相对接地中间导体。SRCD仅用于提供 SRCD下游的额外保护。SRCD旨在用于 用于故障保护电路（间接接触 保护）已经在SRCD的上游得到保证。 本合并版本由第一版（2011年）组成 及其修正案1（2015）。因此，无须在 本出版物的补充。

IEC 62640:2011+A1:2015 applies to residual current-operated devices (RCD) incorporated in, or specifically intended for use with two pole socket-outlets, with or without earthing contact for household and similar uses (SRCD: socket-outlet residual current devices). SRCDs, according to this standard, are intended to be used in single phase systems such as phase to neutral or phase to phase or phase to earthed middle conductor. SRCDs are only intended to provide additional protection downstream of the SRCD. SRCDs are intended for use in circuits where the fault protection (indirect contact protection) is already assured upstream of the SRCD. This consolidated version consists of the first edition (2011) and its amendment 1 (2015). Therefore, no need to order amendment in addition to this publication.