本指南适用于电压等于或小于1000Vrms或1200 Vdc的平衡或不平衡数据、通信和信号电路中使用的电涌保护器。所涵盖的电涌保护器是线性或非线性元件的多元件串联或并联组合，包装用于限制电压、电流或两者。本指南旨在补充IEEE标准C62。36-2000. 应用指南和测试方法标准中使用的定义相同。指南或标准中未定义的其他术语，请参见IEEE Std 100-1996。本指南不适用于IEEE C62中涵盖的封装式单组分气管或气隙避雷器。42.本指南的目的是让读者了解各种类型的多元件数据、通信和信号电路保护器在特定应用中的功能和性能测试。 考虑了多元件保护器的特性，以及选择适当产品和解释其规格所需的概念。

This guide applies to surge protectors used in balanced or unbalanced data, communication and signaling circuits with voltages equal to or less than 1000Vrms or 1200 Vdc. The surge protectors covered are multiple-component series or parallel combinations of linear or non-linear elements, packaged for the purpose of limiting voltage, current, or both. This guide is intended to complement the IEEE Std C62.36-2000. The definitions used in the Application Guide and the Test Methods Standard are the same. For other terms not defined in the Guide or the Standard, see IEEE Std 100-1996. This guide is not intended to apply to packaged single-component gas tube or air gap arresters, which are covered by IEEE C62.42. The purpose of this guide is to enable the reader to understand the function and performance tests of the various types of multiple-component data, communication and signaling circuit protectors in terms of particular applications. Consideration is given to the characteristics of multiple-component protectors and the concepts necessary to choose the appropriate product and interpret its specifications.