标准摘要
[中文适用范围]： 熔断器供授权人员使用。这类熔断器通常设计为仅在安装场所由授权人员接触或更换熔体。供授权人员使用的熔断器符合下列熔断系统，并满足 IEC 60269-1 相应条款的要求（本标准另有定义者除外）。本标准按熔断系统分类，每种系统涉及一种供授权人员使用的标准化熔断器的具体实例： 熔断系统 A：带刀片触头的熔体的熔断器（NH 熔断器系统）； 熔断系统 B：带触杆的刀片触头熔体的熔断器（NH 熔断器系统）； 熔断系统 C：熔断轨（NH 熔断器系统）； 熔断系统 D：母线安装式熔断器底座（NH 熔断器系统）； 熔断系统 E：螺栓连接式熔体的熔断器（BS 螺栓连接熔断器系统）； 熔断系统 F：带圆柱形触帽的熔体的熔断器（NF 圆柱形熔断器系统）； 熔断系统 G：带偏心刀片触头的熔体的熔断器（BS 插入式熔断器系统）； 熔断系统 H：具有“gD”和“gN”特性的熔体的熔断器（J 类、L 类和 T 类延时和非延时熔断器类型）； 熔断系统 I：楔形拧紧触头的 gU 熔体； 熔断系统 J：具有“gD 类 CC”和“gN 类 CC”特性的熔体的熔断器（CC 类延时和非延时熔断器类型）； 熔断系统 K：带螺栓连接触头的刀片 gK 熔体 - 大熔体额定电流从 1250 A 至 4800 A（主熔体）。 注：上述熔断系统是关于其安全方面的标准化系统。国家委员会可从这些标准化熔断器实例中选择一个或多个系统作为其本国标准。 [外文原描述]： IEC 60269-2:2013+AMD1:2016+AMD2:2024 CSV provides supplementary requirements for fuses for use by authorized persons and are generally designed to be used in installations where the fuse-links are accessible to, and may be replaced by, authorized persons only. Fuses for use by authorized persons according to the following fuse systems also comply with the requirements of the corresponding subclauses of IEC 60269-1, unless otherwise defined in this standard. This standard is divided into fuse systems, each dealing with a specific example of standardized fuses for use by authorized persons: - Fuse system A: Fuses with fuse-links with blade contacts (NH fuse system), - Fuse system B: Fuses with striker fuse-links with blade contacts (NH fuse system), - Fuse system C: Fuse-rails (NH fuse system), - Fuse system D: Fuse-bases for busbar mounting (NH fuse system), - Fuse system E: Fuses with fuse-links for bolted connections (BS bolted fuse system), - Fuse system F: Fuses with fuse-links having cylindrical contact caps (NF cylindrical fuse system), - Fuse system G: Fuses with fuse-links with offset blade contacts (BS clip-in fuse system), - Fuse system H: Fuses with fuse-links having "gD" and "gN" characteristic (class J and class time delay and non time delay fuse types), - Fuse system I: gU fuse-links with wedge tightening contacts, - Fuse system J: Fuses with fuse-links having "gD class CC" and "gN class CC" characteristics (class CC time delay and non-time delay fuse types), - Fuse system K: gK fuse-links with blade for bolted connections - High fuse-link ratings from 1 250 A up to 4 800 A (master fuse-links). This fifth edition of IEC 60269-2 cancels and replaces the fourth edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: 1. fuse systems A and B: modified values for the power dissipation of NH aM fuse-links; 2. fuse systems A and B: introduction of dimension r for NH fuse-links; 3. addition of new fuse system K: gK fuse-links with contacts for bolted connections. Key Words: fuse systems A to K, requirements for fuses This publication is to be read in conjunction with IEC 60269-1:2006 . The content of the corrigendum 1 (2025-06) has been included in this copy.
英文名称Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) - Examples of standardized systems of fuses A to K