BS EN 61810-2:2017涵盖了耐久性评估的试验条件和规定 使用适当的统计方法进行测试，以获得继电器的可靠性特征。本文件适用于被视为未维修的机电基本继电器 项目（即故障后未修复的项目）。继电器的寿命通常用循环次数（CTF）表示。因此，无论何时 IEC 61649中使用了术语“时间”或“持续时间”，它们具有“周期”的含义。 然而，在给定的操作频率下，循环数可以转换为 各自的时间（例如故障时间（TTF））。基本继电器的故障标准和由此产生的特性描述了它们的性能 本文件规定了正常使用的可靠性。继电器发生故障时 符合规定的故障标准。由于基本继电器的故障率不能被视为常数，尤其是由于 磨损机制，测试项目的失效周期通常显示威布尔曲线 分配本文件提供了数值和图形计算方法 两参数威布尔分布的近似值，以及较低的置信度 极限和用WeiBayes方法确认可靠性值的方法。本文件不包括机电基本继电器的程序，其中 可靠性验证的强化要求适用。交叉引用:IEC 61810-1:2015IEC 61649:2008EN 61649（IEC 61649:2008）ASEN 61810-1:2015ISO 3534ISO 2854IEC 60300-3-5:2001IEC 60050-191:1990IEC 60605-6:2007EN 61810-3:2015IEC 61810-3:2015ISO 13849-1:2015IEC 61810-2-1:2017ISO 3534-1:2006EN 61810-2-1:2017EN ISO 13849-1（ISO 13849-1:2015）ASIEC 62061:2005最新修订版（IEC 616206:2005）最早可于2005年6月1日获得购买本文件时包括购买费用。

BS EN 61810-2:2017 covers test conditions and provisions for the evaluation of endurance tests using appropriate statistical methods to obtain reliability characteristics for relays.This document applies to electromechanical elementary relays considered as non-repaired items (i.e. items which are not repaired after failure).The lifetime of a relay is usually expressed in number of cycles (CTF). Therefore, whenever the terms "time" or "duration" are used in IEC 61649, they carry the meaning "cycles". However, with a given frequency of operation, the number of cycles can be transformed into respective times (e.g. times to failure (TTF)).The failure criteria and the resulting characteristics of elementary relays describing their reliability in normal use are specified in this document. A relay failure occurs when the specified failure criteria are met.As the failure rate for elementary relays cannot be considered as constant, particularly due to wear-out mechanisms, the cycles to failure of tested items typically show a Weibull distribution. This document provides numerical and graphical methods to calculate approximate values for the two-parameter Weibull distribution, as well as lower confidence limits and a method for confirmation of reliability values with the WeiBayes method.This document does not cover procedures for electromechanical elementary relays where enhanced requirements for the verification of reliability apply.Cross References:IEC 61810-1:2015IEC 61649:2008EN 61649 (IEC 61649:2008) ASEN 61810-1:2015ISO 3534ISO 2854IEC 60300-3-5:2001IEC 60050-191:1990IEC 60605-6:2007EN 61810-3:2015IEC 61810-3:2015ISO 13849-1:2015IEC 61810-2-1:2017ISO 3534-1:2006EN 61810-2-1:2017EN ISO 13849-1 (ISO 13849-1:2015) ASIEC 62061:2005IEC 60605-4:2001EN 62061 (IEC 62061:2005) ASAll current amendments available at time of purchase are included with the purchase of this document.