标准摘要
【适用范围】 本文件规定了高频电流法局部放电测试仪的计量特性、校准条件、校准项目和校准方法等要求。 本文件适用于测量频率在3MHz～30MHz频段的高频电流法局部放电测试仪的校准。 【主要技术内容】 前言.........................................................................................................................................................................II 1 范围.....................................................................................................................................................................1 2 规范性引用文件................................................................................................................................................1 3 术语和定义........................................................................................................................................................1 4 工作原理............................................................................................................................................................1 5 计量特性............................................................................................................................................................1 5.1 传感器传输阻抗............................................................................................................................................1 5.2 检测频率........................................................................................................................................................2 5.3 灵敏度............................................................................................................................................................2 5.4 抗干扰性能....................................................................................................................................................2 5.5 线性误差........................................................................................................................................................2 5.6 短期幅值稳定性...........................................................................................................................................2 6 校准条件...........................................................................................................................................................2 6.1 环境条件........................................................................................................................................................2 6.2 测量标准及辅助设备...................................................................................................................................2 7 校准项目和校准方法......................................................................................................................................3 7.1 校准项目.......................................................................................................................................................3 7.2 校准前准备...................................................................................................................................................3 7.3 校准方法.......................................................................................................................................................3 8 校准结果表达..................................................................................................................................................5 9 复校时间间隔 .................................................................................................................................................6 附录A（资料性） 不确定度评定示例............................................................................................................7 附录B（资料性） 校准原始纪录格式..........................................................................................................11 附录C（资料性） 校准证书结果页格式......................................................................................................12 参考文献............................................................................................................................................................13