ICS 29.200 CCS M41 YD 中华人民共和国 通信行业标准 YD/T XXXX—XXXX 信息通信用末端母线配电系统 第2部分：直流系统 Terminal busbar distribution system for telecommunications-Parts 2：D.C. system 点击此处添加与国际标准一致性程度的标识 (报批稿) XXXX-XX-XX 实施 XXXX-XX-XX发布 中华人民共和国工业和信息化部 发 布YD/T XXXXX—XXXX I目  次 前言 .................................................................................. Ⅲ 引言 .................................................................................. IV 1　范围 ................................................................................ 1 2　规范性引用文件 ...................................................................... 1 3　术语和定义 .......................................................................... 2 4　产品的组成和分类 .................................................................... 2 4.1　产品组成 ....................................................................... 3 4.2　结构形式 ....................................................................... 3 4.3　产品规格 ....................................................................... 3 5　技术要求 ............................................................................ 3 5.1　使用条件 ....................................................................... 3 5.2　外观和标识 ..................................................................... 4 5.3　直流输入电源 ................................................................... 4 5.4　输出分路 ...................................................................... 4 5.5　显示要求 ....................................................................... 4 5.6　电压降 ......................................................................... 5 5.7　结构要求 ....................................................................... 5 5.8　颜色标志 ....................................................................... 6 5.9　温升 ........................................................................... 6 5.10　安全要求 ...................................................................... 6 5.11　遥测、遥信功能 ............................................................... 7 5.12　告警功能 ...................................................................... 8 5.13　防雷保护（可选） .............................................................. 8 5.14　防护等级 ...................................................................... 8 5.15　电磁兼容性 .................................................................... 8 5.16　可靠性指标 .................................................................... 8 6　试验方法 ............................................................................ 8 6.1　试验环境条件 ................................................................... 8 6.2　外观和标识 ..................................................................... 9 6.3　直流输入电源 ................................................................... 9 YD/T XXXXX—XXXX II6.4　输出分路 ...................................................................... 9 6.5　显示要求 ....................................................................... 9 6.6　电压降 ......................................................................... 9 6.7　结构要求 ....................................................................... 9 6.8　颜色标志 ...................................................................... 10 6.9　温升 .......................................................................... 10 6.10　安全要求 ..................................................................... 10 6.11　遥测、遥信功能 .............................................................. 11 6.12　告警功能 ..................................................................... 11 6.13　防雷保护 ..................................................................... 12 6.14　防护等级 ..................................................................... 12 6.15　电磁兼容性 ................................................................... 12 6.16　可靠性 ....................................................................... 12 6.17　环境条件试验 ........................