标准摘要
[中文适用范围]: 除IEC 60077-2的一般要求外,本部分IEC 60077给出了断路器规则,其主要触点连接到直流电源和/或辅助电路。根据IEC 60850,这些电路的标称电压不超过3000V DC。 本部分IEC 60077与IEC 60077-2一起具体说明: a) 断路器的特性; b) 断路器符合的服务条件,参考: - 正常服务中的操作和行为; - 短路情况下的操作和行为; - 介电性能; c) 确认组件在服务条件下符合特性的测试及采用的测试方法; d) 断路器上或随附的标记信息。 注1:本文件涉及的断路器可提供在预定条件下自动开路的装置,例如欠压和功率流向反转。本文件不涉及在此类预定条件下操作的验证。 注2:电子组件或电子子组件集成到电气组件中现在是常见做法。 虽然本文件不适用于电子设备,但电子组件的存在不排除此类电气组件在范围内的原因。 断路器中的电子子组件符合电子相关文件(IEC 60571)。 注3:经用户和制造商同意,某些规则适用于安装在非铁路车辆上的电气组件,如矿用机车、无轨电车等。在这种情况下,可能需要特定的附加要求。 本文件不涵盖: e) 电气组件的多连接以实现特定任务; f) 符合IEC 60947-2的工业断路器; g) 符合IEC 61992-2的固定装置直流断路器。 对于f)和g),为确保满意操作,本文件仅用于指定铁路车辆的特定要求。在这种情况下,特定文件说明工业和固定装置断路器符合的附加要求,例如: - 适应(例如控制电压、环境条件等); - 安装和使用方式使其不必承受特定的铁路车辆条件; - 或额外测试以证明这些组件能满意承受铁路车辆条件。 [外文原描述]: IEC 60077-3:2019 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 60077-3:2019 gives the rules for circuit-breakers, the main contacts of which are connected to DC power and/or auxiliary circuits. The nominal voltage of these circuits does not exceed 3 000 V DC according to IEC 60850. This part of IEC 60077, together with IEC 60077-2, states specifically: a) the characteristics of the circuit-breakers; b) the service conditions with which circuit-breakers complies with reference to: - operation and behaviour in normal service; - operation and behaviour in the case of short circuit - dielectric properties; c) the tests for confirming the compliance of the components with the characteristics under the service conditions and the methods to be adopted for these tests; d) the information to be marked on, or given with, the circuit breaker. This second edition cancels and replaces the first edition, issued in 2001. This edition includes the following main technical changes with regard to the previous edition: - procedure of verification of temperature rise is changed; - air-tightness test as type test, insulation resistance measurement are added.
英文名称Railway applications - Electric equipment for rolling stock - Part 3: Electrotechnical components - Rules for DC circuit-breakers