新的！IEC 60268-3:20 18作为IEC 60268-3:20 18 RLV提供，其中包含国际标准及其红线版本，显示了与上一版本相比技术内容的所有变化。 IEC 60268-3:20 18适用于模拟放大器和模拟/数字放大器的模拟部分，它们构成专业或家庭应用音响系统的一部分。它规定了放大器规格中应包括的特性和相应的测量方法。IEC 60268的这一部分应与IEC 60268-1:19 85和IEC 60268 2:19 87结合使用。这第五版取消并取代了2013年出版的第四版。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)新规定了数字输入的额定条件； b)额定电源容差改变； c)最大有效输出功率附加到输出特性列表； d)补充“术语、定义和额定值”条款。

NEW!IEC 60268-3:2018 is available as IEC 60268-3:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60268-3:2018 applies to analogue amplifiers, and the analogue parts of analogue/digital amplifiers, which form part of a sound system for professional or household applications. It specifies the characteristics that should be included in specifications of amplifiers and the corresponding methods of measurement. This part of IEC 60268 shall be used in conjunction with IEC 60268-1:1985 and IEC 60268 2:1987. This fifth edition cancels and replaces the fourth 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) rated condition of digital input is newly specified;
b) tolerance of rated power supply is changed;
c) maximum effective output power is appended to output characteristics list;
d) "Terms, definitions and rated values" clause is complemented.