低压电器装置 - 第7-1部分：附件 - 铜导线用接线端子

[中文适用范围]： IEC 60947-7-1:2025 规定了符合附录 D 的接线端子和测试断开接线端子的要求，这些端子带有螺钉型或无螺钉型夹紧装置，主要用于工业或类似用途，并固定在支架上，提供铜导体之间的电气和机械连接。它适用于连接圆形铜导体的接线端子，无论是否经过特殊处理，横截面积在 0.05 mm2/30 AWG 和 300 mm2/600 kcmil 之间，用于额定电压不超过 1 000 V AC 至 1 000 Hz 或 1 500 V DC 的电路中。接线端子的测试使用交流或直流电源根据本文件相关条款的要求进行。第四版取消并取代了 2009 年出版的第三版。此版本构成技术修订。此版本与上一版相比包括以下重大技术变化：a) 扩大了较小导体横截面的范围； b) 通过绝缘材料 (CoPI) 测试实施接触压力；c) 引入适用于更大横截面的新信息附件 E；d) 将所有表格重新组织为电气和机械值两个表格；e) 将 AWG 尺寸的导体类型实施为公制导体的等效类型，并在附件 C 中提供示例；f) 重新组织附件 D 测试断开接线端子，以提高可读性；g) 引入有关接线端子主要特性的新信息附件 A。 [外文原描述]： IEC 60947-7-1:2025 specifies requirements for terminal blocks and test disconnect terminal blocks according to Annex D with screw-type or screw-less-type clamping units primarily intended for industrial or similar use and to be fixed to a support to provide electrical and mechanical connection between copper conductors. It applies to terminal blocks intended to connect round copper conductors, with or without special preparation, having a cross-section between 0,05 mm2/30 AWG and 300 mm2/600 kcmil, intended to be used in circuits of a rated voltage not exceeding 1 000 V AC up to 1 000 Hz or 1 500 V DC. The tests on terminal blocks are made with AC or DC supply as required in relevant clauses of this document. This fourth edition cancels and replaces the third edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Scope extension for smaller conductor cross-sections; b) Implementation of a contact pressure via insulation material (CoPI) test; c) Introduction of new informative Annex E for larger cross-sections; d) Reorganisation of all tables merged into two tables for electrical and mechanical values; e) Implementation of AWG-sizes conductor types as an equivalent type of metric conductor with examples in Annex C; f) Reorganisation of Annex D test disconnect terminal blocks to enhance readability; g) Introduction of new informative Annex A for main characteristics of terminal blocks.