本标准的范围是定义插入式（便携式）多服务（多端口）浪涌保护装置（MSPD）的性能标准和测试方法，用于保护连接到一条或多条金属导电通信线路和120 V/240 V单相交流电源服务的设备，中性点在服务设备处接地。这些装置旨在安装在插座上 通过装置的分支电路供电，并在从通信服务传输信号的插座或插孔处共同供电，以向各种设备提供受保护的电源和信号 信息技术设备。

The scope of this standard is to define performance criteria and test methods for plug-in (portable) multiservice (multiport) surge protective devices (MSPDs) intended to protect equipment connected to one or more metallic conductive communication line(s) and a 120 V/240 V single phase ac power service, with the neutral grounded at the service equipment. These devices are intended for installation at receptacles supplying power via a branch circuit of the installation, and jointly at receptacles or jacks delivering signals from communications services, for the purpose of providing protected power and signals to a variety of information technology equipment.