适用于带有独立输入和输出绕组的独立和内置单相变压器，用于在50 Hz或60 Hz的交流电源上提供高达1000 V的电压，用于提供和稳定空载额定输出电压超过1000 V但不超过10000 V的冷阴极管形灯（或此类灯的组件），用于照明和电子广告标志，光信号和类似用途。 1992年3月勘误表的内容已包含在本副本中。

Applicable to independent and built-in single-phase transformers with separate input and output windings, for use on a.c. supply up to 1000 V at 50 Hz or 60 Hz, to supply and stabilize cold cathode tubular lamps (or assemblies of such lamps) having a no-load rated output voltage exceeding 1000 V but not exceeding 10 000 V and intended for lighting and for electric advertising signs, light signals and similar purposes. The contents of the corrigendum of March 1992 have been included in this copy.