这些要求包括在室内干燥位置永久连接的吊顶电网低压系统，并按照以下要求安装:加拿大电气规范，第一部分，电气安装安全标准，CSA C22。1和加拿大国家建筑规范。本标准涵盖的吊顶电网低压系统旨在作为吊顶电网安装，为天花板瓷砖提供机械支撑，并在低压电源和低压设备之间提供电气连接。低压系统由以下部件组成:a）输出电压不超过30 V（42.4 V峰值）且不超过2级功率限制的隔离式低压电源；b）电网轨道配电系统，用于从2级电源向一个或多个2级供电设备供电，andc）与吊顶电网低压系统电气连接的2级动力设备。 本标准还包括用于空气处理空间的吊顶电网低压系统。

These requirements cover suspended ceiling grid low voltage system is intended to be permanently connected, for indoor dry locations, and installed in accordance with the following requirements: Canadian Electrical Code, Part I, Safety Standard for Electrical Installations, CSA C22.1, and the National Building Code of Canada. The suspended ceiling grid low voltage systems covered by this standard are intended to be installed as a suspended ceiling grid that provides mechanical support for the ceiling tiles and provides electrical connections between the low voltage power supply and the low voltage equipment. The low voltage system consists of the following components:a) An isolating type low voltage power supply with output(s) operating at 30 V (42.4 V peak) or less and not exceeding Class 2 power limits,b) A grid rail power distribution system to provide power from the Class 2 power supply to one or more pieces of Class 2 powered equipment, andc) Class 2 powered equipment that is electrically connected to the suspended ceiling grid low voltage system. This standard also covers suspended ceiling grid low voltage systems intended for use in air-handling spaces.