标准摘要
[中文适用范围]： 适用于混合供电轨道系统，用于同时连接 I 类和 III 类灯具，但在不同的轨道开口中连接至电源，具有两个或多个杆。 [外文原描述]： Applies to mixed supply track systems for connecting both class I and class III luminaires simultaneously, but in different track openings to the electrical supply, with two or more poles.
英文名称Electrical supply track systems for luminaires - Part 2-1: Mixed supply systems - Classes I and III