电子设备用机电开关.第1部分:总规范

[中文适用范围]： 本通用说明书涉及用于电气和电子设备的机电开关。本规范涵盖的开关： a) 是通过导电部件（触点）的机械运动打开、关闭或改变电路连接的装置； b) 最大额定电压为480 V； c) 最大额定电流为 63 A。本通用规范不包括用于信息处理系统的键盘和小键盘。机电按键开关可以包括在本通用说明书的范围内。开关系列应在引用本通用规范的任何详细规范中进行描述。 [外文原描述]： IEC 61020-1:2009 provides consistency in detail specifications for electromechanical switches by specifying the terminology, symbols, test methods and other necessary information. Switches covered by this specification: - are devices which open, close, or change the connection of a circuit by the mechanical motion of conducting parts (contacts); - have a maximum rated voltage of 480 V; - have a maximum rated current of 63 A. This second edition constitutes a technical revision and includes the following significant technical changes with respect to the previous edition: - The requirements of the IEC 60512 series of standards have been integrated. - Other necessary information concerning switches as specified in IEC 60512 have been implemented. The following items have been updated with respect to the first edition: - test methods were reviewed for detailed description; - the explanation for the test method of the operating force was rewritten in more detail; - the test voltage for measurement for contact bounce was reviewed; - the electrical endurance "ON" duration in the duty cycle was harmonized with IEC 61058; - the requirements for fire hazards have been deleted; - testing methods of surface mounting switches based on the Japanese industrial standard were added.