ICS17.220.20 CCSN22 4401 广州市地方标准 DB4401/T208—2023 在运电子式交流电能表状态评价与更换技 术规范 SpecificationforevaluationandreplacementofACelectricitymetersin service 2023-03-10发布 2023-04-10实施 广州市市场监督管理局发布 DB4401/T208—2023 I目次 前言.......................................................................................................................................................................III 1范围.....................................................................................................................................................................1 2规范性引用文件.................................................................................................................................................1 3术语和定义.........................................................................................................................................................1 4通用技术要求.....................................................................................................................................................2 4.1运行误差......................................................................................................................................................2 4.2时钟日计时误差..........................................................................................................................................3 4.3时钟示值误差..............................................................................................................................................3 4.4仪表常数......................................................................................................................................................3 4.5铭牌..............................................................................................................................................................3 4.6外观..............................................................................................................................................................3 5现场检测技术要求.............................................................................................................................................3 5.1现场检测条件..............................................................................................................................................3 5.2现场检测计量标准器及主要配套设备.....................................................................................................3 5.3电能表现场检测项目.................................................................................................................................4 5.4电能表现场检测方法.................................................................................................................................4 6检测结果处理.....................................................................................................................................................6 6.1测量数据修约..............................................................................................................................................6 6.2试验结果处理..............................................................................................................................................6 7状态评价与更换技术管理要求........................................................................................................................6 7.1总体要求......................................................................................................................................................6 7.2电能表状态评价..........................................................................................................................................7 7.3电能表更换..................................................................................................................................................7 7.4异常/异议电能表现场确认........................................................................................................................7 7.5使用周期延长规则.....................................................................................................