本标准适用于电压小于或等于1000 V rms或1200 V dc的多导体和同轴、平衡或不平衡、数据、通信和信号电路上的电涌保护器。这些浪涌保护器旨在限制电压浪涌、电流浪涌或两者。 本标准不适用于单个设备组件。所有电涌保护器（SPD）的安装必须符合适用的地方和国家电气规范的要求。本标准特别排除了低压电源电路应用的保护器。 本标准涵盖的电涌保护器应通过现场安装电涌保护器时使用的连接或终端进行测试。对于拟与底座或连接器一起使用的电涌保护器，该底座或连接器应为试验的一部分。 本标准的典型性能值表提供了各种电涌保护器之间的比较方法。它们还为低压数据、通信和信号电路中使用的浪涌保护器的用户和制造商提供了一种通用的工程语言。

This standard applies to surge protectors for application on multi-conductor and coaxial, balanced or unbalanced, data, communications, and signaling circuits with voltages less than or equal to 1000 V rms, or 1200 V dc. These surge protectors are intended to limit voltage surges, current surges, or both. This standard is not intended to cover individual device components. Installation of all surge protectors SPDs) must be in conformance with the requirements of applicable local and national electrical codes. Specifically excluded from this standard are protectors for low-voltage power circuit applications. The surge protectors covered by this standard are to be tested by means of the connections or terminations that are used when the surge protector is installed in the field. For surge protectors that are intended to be used with a base or connector, that base or connector shall be part of the tests. The tables of typical performance values of this standard provide a means of comparison among various surge protectors. They also provide a common engineering language beneficial to the user and manufacturer of surge protectors used in low-voltage data, communications, and signaling circuits.