IEC 61347-2-9:20 12系列规定了放电灯（如高压汞蒸气、低压钠蒸气、高压钠蒸气和金属卤化物灯）的电磁控制装置的特殊安全要求。该标准涵盖了用于交流电的感应式电磁控制装置。在50 Hz或60 Hz下提供高达1 000 V的电源，与放电灯相关，具有IEC 60188、IEC 60192和IEC 60662中规定的额定瓦数、尺寸和特性。这第二版取消并取代了2000年出版的第一版，修正案1:20 03和修正案2:20 06。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)加入新的第14条； b)“镇流器”一词改为“电磁控制装置”。 本出版物应与IEC 61347-1:20 07一起阅读。

IEC 61347-2-9:2012 series specifies particular safety requirements for electromagnetic controlgear for discharge lamps such as high-pressure mercury vapour, low-pressure sodium vapour, high-pressure sodium vapour and metal halide lamps. The standard covers inductive-type electromagnetic controlgear for use on a.c. supplies up to 1 000 V at 50 Hz or 60 Hz, associated with discharge lamps, having rated wattages, dimensions and characteristics as specified in IEC 60188, IEC 60192 and IEC 60662. This second edition cancels and replaces the first edition published in 2000, Amendment 1:2003 and Amendment 2:2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) the addition of a new Clause 14;
b) the word "ballast" is changed to "electromagnetic controlgear".

This publication is to be read in conjunction with IEC 61347-1:2007.