家用及类似用途的机电接触器

[中文适用范围]： 本国际标准适用于家用和类似用途的机电空气断路接触器，其主触点用于连接到额定电压不超过 440 V 交流电、额定工作电流小于或等于 63 A 的电路，使用类别为 AC -7a 和 32 A 适用于使用类别 AC-7b@ 且额定条件短路电流小于或等于 6 kA。本标准中涉及的接触器通常不设计用于中断短路电流。因此，适当的短路保护（见 9.3.4）应构成安装的一部分。本标准不适用于： ?- 符合IEC 60947-4-1的接触器； ?- 半导体接触器； ?- 为特殊应用而设计的接触器； ?- 接触器的辅助触头。这些内容在 IEC 60947-5-1 中进行了讨论。该标准规定： 1）接触器的特性。 2) 接触器应遵守的条件涉及： ?a) 其操作和行为；?b) 其介电特性；?c) 其外壳@（如适用）提供的防护等级；?d) 其结构；? e) 其电磁兼容特性。 3) 旨在确认这些条件已得到满足的试验以及这些试验所采用的方法。 4) 为认证目的而提交的测试顺序和样品数量。 5) 接触器或制造商文献中提供的信息。 [外文原描述]： IEC 61095:2009 applies to electromechanical air break contactors for household and similar purposes provided with main contacts intended to be connected to circuits the rated voltage of which does not exceed 440 V a.c. (between phases) with rated operational currents less than or equal to 63 A for utilization category AC-7a and 32 A for utilization categories AC-7b and AC-7c, and rated conditional short-circuit current less than or equal to 6 kA. This second edition cancels and replaces the first edition published in 1992 and its Amendment 1 (2000), and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - deletion of switching overvoltages requirements, - addition of a new utilization category AC-7c: switching of compensated electric discharge lamp control, - measuring of Uimp required, but the marking is not required if Uimp equal to 4 kV, - improvement regarding marking concerning direction of movement, - improvement of dielectric properties, - test of resistance to humidity referred to IEC 60068-2-78 instead of IEC 60068-2-3, - amendment to Table B.1 regarding test sequences, - deletion of Table F.2 regarding the correspondence between the nominal voltage of the supply system and the contactor rated impulse withstand voltage, - addition of a new Annex H (normative): degrees of protection of enclosed contactor, - addition of a new Annex I (normative): requirements and tests for equipment with protective separation.