防雷保护 第1部分：一般原则

[中文适用范围]： 本部分IEC 62305为建筑物及其装置和内容物以及人员提供防雷的一般原则。 本文件不适用于以下情况： – 铁路系统； – 车辆、船舶、飞机、海上设施； – 地下高压管道； – 与建筑物分离的管道、电力和通信线路； – 核电站。 IEC 62305系列应被视为这些建筑物的最低要求。 在CIGRE提供更多信息之前，本文件中描述的雷电流参数也可适用于海上设施。 注1：这些情况下，建筑物通常受各种专门机构制定的特殊法规管辖。对于不受此类特殊法规管辖的建筑物（附属或其他），IEC 62305系列仍然适用。 注2：风力涡轮机的防雷也由IEC 61400-24 [4]涵盖。 [外文原描述]： IEC 62305-1:2024 provides general principles for the protection of structures against lightning, including their installations and contents, as well as persons. The following cases are outside the scope of this document: - railway systems; - vehicles, ships, aircraft, offshore installations; - underground high-pressure pipelines; - pipe, power and telecommunication lines separated from the structure; - nuclear power plants. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) reference to the IEC 62561 series is made in Annex D to provide a link to relevant lightning protection system components according to the IEC 62561 series; b) risk management introduces the concept of types of loss with public relevance; c) the concept of frequency of damage that can impair the availability of the internal systems within the structure has been introduced; d) surge currents due to lightning flashes have been more accurately specified for SPD dimensioning in low-voltage power systems and in telecommunication systems.