标准摘要
[中文适用范围]: IEC 61643 的这一部分描述了连接到 50 Hz 至 60 Hz 交流和直流电源的 SPD 的选择、操作、位置和协调原则。额定电压高达 1 000 V rms 或 1 500 V dc 的电源电路和设备 注 1:对于电力牵引等特殊应用,可能需要附加要求。 注 2 应记住,IEC 60364 也适用。注 3:本标准仅涉及 SPD,而不涉及设备内部集成的 SPD 组件。 [外文原描述]: Applies to surge protective devices (SPD's) used to protect, under specific conditions, electrical systems and equipment against various overvoltage and impulse curents (e.g. lightning, switching surges).Information is provided on equipment to be protected, system characteristics, insulation levels, overvoltages, methods of installation,location,co-ordination and failure modes of SPD's, as well as equipment failure consequences.
英文名称Low-voltage surge protective devices - Part 12: Surge protective devices connected to low-voltage power distribution systems - Selection and application principles