ICS 29.180 K 41 备案号： 63143-2018 中华人民共和国电力行业标准 DL / T 2032 — 2019 计量用低压电流互感器 0.4kV metering current transformers 2019-06-04 发布 2019-10-01 实施 国家能源局 发 布 DL / T 2032 — 2019 I目 次 前 言........................................................... .......... IV 1 范围........................................................... ........... 1 2 规范性引用文件...................................................... ...... 1 3 术语和定义........................................................ ........ 1 4 技术要求......................................................... ......... 2 4.1 型号命名方法..................................................... ..... 2 4.2 环境类 别和严酷等级.................................................. .. 2 4.3 技术指标....................................................... ....... 3 4.4 额定值........................................................ ........ 4 5 结构要求......................................................... ......... 4 5.1 器身......................................................... ......... 4 5.2 接线端子....................................................... ....... 5 5.3 安装底 板和接地.................................................... .... 5 5.4 电流比标志...................................................... ...... 5 5.5 铭牌......................................................... ......... 5 5.6 电气间 隙与爬电距离.................................................. .. 6 5.7 外形尺寸....................................................... ....... 6 6 试验方法......................................................... ......... 6 6.1 外观检查....................................................... ....... 6 6.2 电气间 隙和爬电距离测量................................................ 6 6.3 绝缘电阻测量..................................................... ..... 6 6.4 匝间绝 缘强度试验................................................... ... 6 6.5 工频耐压试验..................................................... ..... 6 6.6 基本误差试验..................................................... ..... 7 6.7 等安匝 误差试验.................................................... .... 8 6.8 剩磁误差试验..................................................... ..... 8 6.9 极限工 作温度下的误差试验 .............................................. 8 6.10 磁饱和裕度试验................................................... .... 8 6.11 温升试验...................................................... ....... 8 6.12 短时热电流试验................................................... .... 9 6.13 仪表保安系数试验.................................................. .. 10 6.14 湿热试验...................................................... ...... 10 6.15 辐照试验...................................................... ...... 10 6.16 长霉试验...................................................... ...... 10 6.17 盐雾试验...................................................... ...... 10 6.18 灼热丝试验..................................................... ..... 11 6.19 弹簧锤试验..................................................... ..... 11 6.20 安装底板载荷试验.................................................. .. 11 7 检验规则......................................................... ........ 11 DL / T 2032 — 2019 II 7.1 一般要求....................................................... ...... 11 7.2 出厂试验....................................................... ...... 12 7.3 全检验收试验..................................................... .... 12 7.4 全性能试验...................................................... ..... 12 8 包装、运 输与贮存..................................................... .... 12 8.1 包装......................................................... ........ 12 8.2 运输......................................................... ........ 13 8.3 贮存......................................................... ........ 13 8.4 随机文件....................................................... ...... 13 附录 A （资 料性附录）谐波、直流分量影响试验 ................................ 14 附录 B （规 范性附录）铭牌样式及电子标签具体要求 ............................ 18 附录 C （资 料性附录）计量