本标准适用于电压等于或小于600 V rms的系统上应用的浪涌保护装置。这些保护装置旨在限制平衡或不平衡通信电路以及直流至420 Hz电源电路上的电压浪涌。本标准包含一系列用于确定这些气管装置电气特性的标准试验标准。本标准中的试验旨在作为IEEE Std 100-1972《IEEE电气和电子术语标准词典》中设计试验中定义的设计试验，并提供各种气管喘振的比较方法- 保护装置。1气管装置用于在电路中提供过压保护。当超过气管的击穿电压时，气管的正常高阻抗状态变为低阻抗状态，以允许气管传导浪涌放电电流。在管传导浪涌放电电流后，它会中断功率跟随电流的流动，并返回其高阻抗状态。本标准的测试标准和定义提供了一种通用的工程语言，有利于气管喘振的用户和制造商- 保护装置。由于本文中包含的大多数测试中使用的电压和能量水平，所有测量都应被视为危险的，在进行测量时应适当小心。

This standard applies to surge-protective devices for application on systems with voltages equal to or less than 600 V rms. These protective devices are designed to limit voltage surges on balanced or unbalanced communication circuits and dc to 420 Hz power circuits. This standard contains a series of standard test criteria for determining the electrical characteristics of these gas tube devices. The tests in this standard are intended as design tests as defined under design tests in IEEE Std 100-1972, IEEE Standard Dictionary of Electrical and Electronics Terms, and provide a means of comparison among various gas tube surge-protective devices.1 Gas tube devices are used to provide overvoltage protection in electrical circuits. When the gas tube's breakdown voltage is exceeded, the tube's normal high impedance state changes to a low impedance state to allow the gas tube to conduct the surge discharge current. After the tube conducts the surge discharge current, it interrupts the flow of power follow current and returns to its high impedance state. This standard's test criteria and definitions provide a common engineering language beneficial to user and manufacturer of gas tube surge-protective devices. Due to the voltage and energy levels employed in the majority of tests contained herein, all measurements should be considered dangerous and appropriate caution should be taken in their performance.