光纤互连器件和无源组件 - 基础测试与测量程序 - 第2-33部分：测试 - 光纤机械接续子、光纤管理系统、保护性外壳和加固型连接器的装配与拆卸

[中文适用范围]： IEC 61300-2-33:2026 包含该标准的正式版本及其带注释的版本。带注释的版本便于用户快速、简便地对照所有变更：比较 IEC 61300-2-33:2026 第 4.0 版与上一版 IEC 61300-2-33:2012 第 3.0 版之间的全部差异。此外，IEC TC/SC 86B 专家的注释旨在解释若干重大变更的原因，或对部分内容予以澄清。 该标准评估光纤机械接续子、光纤管理装置、保护外壳或加固型连接器在经历规定次数的装配与拆卸操作后的性能表现。文件中所述试验程序模拟部件在服务寿命内可能 encountered 的实际工况，用以检验以下性能特征： - 光纤机械接续子在拆卸后重新安装的能力； - 在重新引入光纤管理装置和保护外壳的过程中，接入光纤及光学组件并进行重新配置时，不干扰相邻光纤电路传输的能力； - 保护外壳在频繁开闭操作后的密封性能； - 加固型连接器在频繁插拔操作后的密封性能。 本第四版取消并取代 2012 年发布的第三版，属于技术性修订。与上一版相比，本版本包含以下重大技术变更： a) 依据 IEC 61753-1:2018 和 IEC 61756-1:2019 更新术语与定义； b) 根据 IEC 61753-1:2018 新版更新试验严酷等级； c) 新增 Procedure D，用于验证加固型连接器在频繁插拔后的密封性能。 [外文原描述]： IEC 61300-2-33:2026 evaluates the behaviour of a fibre optic mechanical splice, a fibre management system, a protective housing or a hardened connector after being subjected to a specified number of assembly and disassembly operations. The test procedures described in this document simulate conditions that the component can encounter during its service lifetime to check the following performance characteristics: - capability of an optical mechanical splice to be reinstalled after being disassembled; - capability to reintroduce fibre management systems and protective housings, accessing fibres and optical components and making reconfigurations without disturbing transmission in adjacent fibre circuits; - sealing performance of the protective housing after frequent opening and closing operations; - sealing performance of the hardened connector after frequent mating and demating operations. This fourth edition cancels and replaces the third edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) update of the terms and definitions according to IEC 61753-1:2018 and IEC 61756‑1:2019; b) update of the test severities according to the new edition of IEC 61753-1:2018; c) addition of procedure D to verify the sealing performance after frequent mating and demating of a hardened connector.