IEC 61557-14:20 23根据IEC 60204-1定义了用于确定机械电气设备电气安全性的测试和测量设备的特殊要求。 本国际标准将与IEC 61557-1:20 19结合使用。 IEC 61557-14:20 23取消并取代2013年发布的第一版。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)澄清引言； b)将“介电强度”改为“电压测试”； c)4.2.6.1中增加了对最大输出电流的要求； d)4.2.6.1中增加了双手操作启动电气开关时的跳闸时间； e)4.2.6.2中对试验人员和旁观者的电击保护的附加时间限制能力； f)更新安全测试参考文献； g)结构与整个IEC 61557系列的结构对齐。

IEC 61557-14:2023 defines special requirements for test and measurement equipment used to determine the electrical safety of electrical equipment of machinery in accordance with IEC 60204-1.
This International Standard is to be used in conjunction with IEC 61557-1:2019.
IEC 61557-14:2023 cancels and replaces the first edition published in 2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) clarifying the introduction;
b) replaced "dielectric strength" by "voltage test";
c) requirement for maximum output current has been added in 4.2.6.1;
d) tripping time at electrical switching activated by two-hand operation has been added in 4.2.6.1;
e) additional time limiting capability for the protection against electric shock for test persons and bystanders in 4.2.6.2;
f) updated references for safety testing;
g) alignment of the structure with that of the whole IEC 61557 series.