标准摘要
[中文适用范围]: 本文件适用于设计为"设备断路器"(CBE)的机械开关装置,用于家庭和类似应用。根据本文件的CBE旨在为电气设备内的电路提供保护,包括其组件(如电机、变压器、内部布线)。本文件还包括适用于欠压和/或过压情况下保护电气设备的CBE。本文件还包括适用于隔离的CBE。 注:术语"设备"包括器具。 CBE不适用于建筑物布线安装的过流保护。 根据本文件的CBE具有: - 额定电压不超过440V交流电(相间)和/或直流电不超过250V; - 额定电流不超过125A; - 短路容量(Icn)至少为6×In(交流类型)和4×In(直流类型)但不超过3000A。 CBE可能具有条件短路电流(Inc)额定值,与指定的短路保护装置(SCPD)相关联。附录F提供了与同一电路中的SCPD相关联的CBE协调指南。 对于根据IEC 60529具有高于IP20防护等级的CBE,用于危险环境条件(如湿度过高、过热或过冷或灰尘沉积)和危险场所(如可能发生爆炸的地方),可能需要特殊构造。 本文件包含确保这些设备通过型式测试符合操作特性所需的所有要求。它还包含确保测试结果可重复性的测试要求和测试方法的详细信息。 本文件规定: a) CBE的特性; b) CBE应满足的条件,包括: 1) 正常运行和行为; 2) 过载时的操作和行为; 3) 短路时的操作和行为,直至其额定短路容量; 4) 其介电性能; c) 用于确认这些条件已满足的测试和测试方法; d) 设备上应标记的数据; e) 为认证目的进行的测试序列和提交的样品数量(见附录C); f) 用于揭示材料或制造中可能影响安全性的不可接受变化的常规测试(见附录I)。 [外文原描述]: IEC 60934:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60934:2019 is applicable to mechanical switching devices designed as "circuit‑breakers for equipment" (CBE) for household and similar applications. CBEs according to this document are intended to provide protection to circuits within electrical equipment including its components (e.g. motors, transformers, internal wiring). This document covers also CBEs applicable for protection of electrical equipment in case of undervoltage and/or overvoltage. This document also covers CBEs which are suitable for isolation. This fourth edition cancels and replaces the third edition published in 2000, Amendment 1:2007 and Amendment 2:2013. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) clarifications for type testing purposes.
英文名称Circuit breakers for equipment (CBE)