IEC 61540:2023适用于家用和类似用途的便携式剩余电流装置(PRCD)，由插头、剩余电流装置(RCD)和一个或多个插座或连接装置组成。它们不包含过流保护。它们适用于额定电流不超过16 A、额定电压不超过250 V AC的单相和两相系统，或额定电流不超过32 A、额定电压不超过130 V AC的接地系统。除了固定装置为下游电路提供的保护之外，它们还旨在在直接接触的情况下提供防止电击危险的保护。 本第二版取消并取代1997年出版的第一版及其修正案1:19 98。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: a）修订了文件内容，使其与IEC 60755（剩余电流器械的团体安全出版物）和标准库“模块和模块”保持一致。 b)引入分类“4.3根据线路电压故障时自动打开后的行为”。 c)增加了新的要求和测试，以涵盖针对冲击危险引入的保护功能: -在缺少保护导体的情况下验证正确的性能。 -在危险带电保护导体的情况下验证正确的性能。 -在保护导体丢失的情况下验证正确的性能。 -验证在保护导体中存在外部故障电流的情况下的行为。d）根据IEC 62752（IC？CPD）对间隙/爬电距离进行了修订和修改。 e)最小工作电压值的修订。 f)介绍对环境空气温度的要求和测试？25°C和+40°C。 g)对介电性能的测试进行了修订，并与标准库“块和模块”对齐。 h)符合IEC 62752(IC-CPD)的相关条款；IC-CPD是描述类似产品/特性的产品标准。 i)根据主要文件的内容对所有附件进行了修订和调整。

IEC 61540:2023 applies to portable residual current devices (PRCDs) for household and similar uses, consisting of a plug, a residual current device (RCD) and one or more socket-outlets or a provision for connection. They do not incorporate overcurrent protection. They are intended for single- and two-phase systems for rated currents not exceeding 16 A for rated voltages not exceeding 250 V AC, or for rated current not exceeding 32 A for rated voltages not exceeding 130 V AC to earth. They are intended to provide protection against shock hazard in case of direct contact, in addition to the protection provided by the fixed installations for the circuit downstream.
This second edition cancels and replaces the first edition published in 1997 and its Amendment 1:1998. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) The content of the document was revised and aligned with IEC 60755 (group safety publication for residual current devices) and standard library "blocks and modules".
b) Introduction of classification "4.3 According to behaviour after opening automatically in case of failure of the line voltage".
c) New requirements and tests were added to cover the introduced protection function against shock hazard:
- Verification of correct performance in the case of missing protective conductor.
- Verification of correct performance in the case of hazardous live protective conductor.
- Verification of correct performance in the case of loss of protective conductor.
- Verification of behaviour in the case of external fault current in the protective conductor.
d) Clearances/creepage distances revised and modified in alignment with IEC 62752 (IC？CPD).
e) Revision of values for minimum operating voltages.
f) Introduction of requirements and test for ambient air temperature between？25 °C and +40 °C.
g) Test of dielectric properties revised and aligned with standard library "blocks and modules".
h) Relevant clauses aligned with IEC 62752 (IC-CPD); IC-CPD is a product standard describing similar product/features.
i) All annexes revised and adapted to content of main document.