NB 中华人民共和国能源行业标准 NB/T11891—2025 水电站厂房桥式起重机在线监测系统 技术规范 Technicalspecificationforonlinemonitoringsystem ofpowerhousebridgecraneforhydropowerstations （报批稿） 2025‐09‐28发布 2026‐03‐28实施 国家能源局发布ICS27.140 CCSK55NB/T11891-2025 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.......................................................................................................................................................1 4总体要求...........................................................................................................................................................2 4.1一般要求...................................................................................................................................................2 4.2数据来源...................................................................................................................................................2 4.3监测项目及其选择原则..........................................................................................................................2 4.4通信接口..................................................................................................................................................2 5技术要求...........................................................................................................................................................3 5.1系统的使用环境.....................................................................................................................................3 5.2系统的功能与特性.................................................................................................................................3 5.3系统的基本结构.....................................................................................................................................5 5.4测点布置及检测方法.............................................................................................................................5 5.5系统的数据采集与分析.........................................................................................................................6 5.6传感器......................................................................................................................................................8 5.7硬件及软件..............................................................................................................................................8 6安装要求.........................................................................................................................................................10NB/T11891-2025 II6.1传感器的安装........................................................................................................................................10 6.2线缆敷设与防护...................................................................................................................................10 6.3数据采集箱安装与防护........................................................................................................................11 6.4系统接地................................................................................................................................................11 7试验和检验.....................................................................................................................................................11 7.1一般要求.............................................................................................