本国际标准适用于带有爱迪生螺纹E14、E27和E40的灯座，其设计仅用于连接灯具和半灯具。 它也适用于工作电压不超过250 V r.m.s.的交流电路中使用的开关灯座。 本标准还适用于室内使用的带有爱迪生螺纹E5的灯座，其设计用于连接串联灯具的电源线，工作电压不超过25 V，以及带有爱迪生螺纹E10的灯座，其设计用于连接串联灯具的电源线，工作电压不超过60 V，用于室内或室外使用。它也适用于内置的灯座E10，用于将单个灯具连接到电源。这些灯座不用于零售。

This International Standard applies to lampholders with Edison thread E14, E27 and E40, designed for connection to the supply of lamps and semi-luminaires* only. It also applies to switched-lampholders for use in a.c. circuits only, where the working voltage does not exceed 250 V r.m.s. This standard also applies to lampholders with Edison thread E5 designed for connection to the supply mains of series connected lamps, with a working voltage not exceeding 25 V, to be used indoors, and to lampholders with Edison thread E10 designed for connection to the supply mains of series connected lamps, with a working voltage not exceeding 60 V, to be used indoors or outdoors. It also applies to lampholders E10 for building-in, for the connection of single lamps to the supply. These lampholders are not intended for retail sale.