和 1 500 V DC 低压配电系统中的电气安全 — 用于测试、测量或监测保护措施的设备 — 第 14 部分：用于测试机械电气设备安全性的设备

[中文适用范围]： IEC 61557-14:2023 定义了用于根据 IEC 60204-1 确定机械电气设备电气安全的测试和测量设备的特殊要求。本国际标准与 IEC 61557-1:2019 结合使用。 IEC 61557-14:2023取消并取代了2013年发布的第一版。该版本构成技术修订版。相对于前一版本，本版本包括以下重大技术变化： a) 澄清引言； b) 将“介电强度”改为“电压试验”； c) 4.2.6.1增加了最大输出电流的要求; d) 4.2.6.1增加了双手操作电气开关的脱扣时间； e) 4.2.6.2 中对试验人员和旁观者进行电击保护的附加时间限制能力； f) 更新了安全测试参考文献； g) 结构与整个 IEC 61557 系列的结构一致。 [外文原描述]： 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.