采用IEC 60598 2 23:2020，并对澳大利亚和新西兰进行了修改，其中规定了ELV光源的超低压照明系统的要求，用于普通室内使用，电源电压不超过1000 V。并联连接的灯具通过自由悬挂的连续支撑导体或型材供电，系统弱电部分的电流不超过25 A。

Adopts IEC 60598 2 23:2020 with modifications for Australia and New Zealand, which specifies requirements for extra-low-voltage lighting systems for ELV light sources, intended for ordinary interior use on supply voltages not exceeding 1 000 V. The luminaires, being connected in parallel, are supplied via freely suspended continuous supporting conductors or profiles, the current in the ELV part of the system not exceeding 25 A.