333333 中 华 人 民 共 和 国 通 信 行 业 标 准 电信设备环境试验要求和试验方法 第11 部分：地下固定使用设备 Environmental test requirements and test methods for telecommunication equipment Part 11: Underground equipment of stationary use （报批稿）YDICS 33.040.99 M 40 YD/T XXXX-20XX 20××-××-××发布 20××-××-××实施 中华人民共和国工业和信息化部 发布 YD/T XXXX-20XX 目 录 前 言 ................................................................................................................................................................. 1 1 范围 ................................................................................................................................................................... 2 2 规范性引用文件 ............................................................................................................................................... 2 3 术语、定义和缩略语 ....................................................................................................................................... 2 3.1 术语和定义 .................................................................................................................................................... 2 3.2 缩略语 ............................................................................................................................................................ 3 4 环境试验要求 ................................................................................................................................................... 3 4.1 基本要求 ........................................................................................................................................................ 3 4.2 受试设备 ........................................................................................................................................................ 3 4.3 环境试验项目 ................................................................................................................................................ 3 5 环境试验方法 ................................................................................................................................................... 4 5.1 低温试验 ........................................................................................................................................................ 4 5.2 高温试验 ........................................................................................................................................................ 4 5.3 温度变化试验 ................................................................................................................................................ 4 5.4 恒定湿热试验 ................................................................................................................................................ 4 5.5 交变湿热试验 ................................................................................................................................................ 4 5.6 振动试验 ........................................................................................................................................................ 4 5.7 碰撞试验 ........................................................................................................................................................ 4 5.8 霉菌试验 ........................................................................................................................................................ 4 5.9 盐雾试验 ........................................................................................................................................................ 4 5.10 防水试验 ...................................................................................................................................................... 4 5.11 浸水试验 ...................................................................................................................................................... 4 5.12 结冰试验 ...........................................................................