+AMD1:2016 CSV 低压熔断器.第2部分:授权人员使用的熔断器（主要用于工业应用的熔断器）的补充要求.熔断器A至K的标准化系统示例

[中文适用范围]： 熔断器系统 A 至 K：授权人员使用的熔断器的补充要求（主要用于工业应用的熔断器）。 本标准按熔断器系统划分，每个系统处理授权人员使用的标准化熔断器的一个特定示例： 熔断器系统 A：带有刀片触点的熔体的熔断器（NH 熔断器系统） 熔断器系统 B：带有击针的刀片触点熔体的熔断器（NH 熔断器系统） 熔断器系统 C：熔断导轨（NH 熔断器系统） 熔断器系统 D：用于母线安装的熔断底座（NH 熔断器系统） 熔断器系统 E：带有用于螺栓连接的熔体的熔断器（BS 螺栓连接熔断器系统） 熔断器系统 F：带有圆柱形接触帽的熔体的熔断器（NF 圆柱形熔断器系统） 熔断器系统 G：带有偏心刀片触点的熔体的熔断器（BS 插销式熔断器系统） 熔断器系统 H：具有"gD"和"gN"特性的熔体（J 类、L 类和 T 类延时和非延时熔断器类型） 熔断器系统 I：带楔形夹紧触点的 gU 熔体 熔断器系统 J：具有"gD CC 类"和"gN CC 类"特性的熔体（CC 类延时和非延时熔断器类型） 熔断器系统 K：用于螺栓连接的刀片 gK 熔体 - 高熔体额定值从 1250 A 到 4800 A（主熔体） [外文原描述]： IEC 60269-2:2013+AMD1:2016 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 . This consolidated version consists of the fifth edition (2013)) and its amendment 1 (2016).