DL-T 2109-2020 直流输电线路用复合外套带外串联间隙金属氧化物避雷器选用导则

ICS 29.240 CCS K40 DL 中华人民共和国电力行业标准 DL/T 2109 —2020 直流输电线路用复合外套带外串联间隙金属氧化物避雷器选用导则 Selection and application recommendations of polymer -housed metal oxide surge arresters with external series gap for dc power transmission line 2020 - 10 - 23发布 2021 - 02 - 01实施国家能源局发布 XX/T XXXXX —XXXX I 目录前言 ................................ ................................ ............ IV 直流输电线路用复合外套带外串联间隙金属氧化物避雷器选用导则 ...................... 1 1 范围 ................................ ................................ ............... 1 2 规范性引用文件 ................................ ................................ ..... 1 3 术语和定义 ................................ ................................ ......... 1 4 标志和分类 ................................ ................................ ......... 3 4.1 线路避雷器标志 ................................ ................................ . 3 4.2 线路避雷器分类 ................................ ................................ . 3 5 标准额定值 ................................ ................................ ......... 4 5.1 标准额定电压 ................................ ................................ ... 4 5.2 标准标称放电电流 ................................ ............................... 4 6 运行条件 ................................ ................................ ........... 5 6.1 正常运行条件 ................................ ................................ ... 5 6.2 异常运行条件 ................................ ................................ ... 5 7 一般选用程序 ................................ ................................ ....... 5 8 参数选择和技术要求 ................................ ................................ . 6 8.1 持续运行电压 ................................ ................................ ... 6 8.2 额定电压 ................................ ................................ ....... 6 8.3 直流参考电压 ................................ ................................ ... 6 8.4 0.75 倍直流参考电压下漏电流试验 ................................ ................. 7 8.5 残压 ................................ ................................ ........... 7 8.6 雷电冲击动作负载试验 ................................ ........................... 7 8.7 大电流冲击耐受能力 ................................ ............................. 8 8.8 雷电放电能力 ................................ ................................ ... 8 8.9 雷电冲击放电电压性能 ................................ ........................... 9 8.10 直流耐受电压性能 ................................ .............................. 9 8.11 操作冲击电压耐受性能 ................................ ......................... 10 8.12 雷电冲击伏秒特性 ................................ ............................. 10 8.13 机械性能 ................................ ................................ ..... 10 8.14 振动性能 ................................ ................................ ..... 13 8.15 密封性能 ................................ ................................ ..... 13 8.16 短路电流性能 ................................ ................................ . 14 8.17 爬电距离 ................................ ................................ ..... 14 8.18 续流遮断特性 ................................ ................................ . 15 8.19 外套绝缘耐受性能 ................................ ............................. 17 8.20 本体故障后的绝缘耐受性能 ................................ ..................... 18 8.21 局部放电 ................................ ................................ ..... 18 8.22 无线电干扰电压试验 ................................ ........................... 18 8.23 电晕试验 ................................ ...................... 错误!未定义书签。 XX/T XXXXX —XXXX II 8.24 气候老化 ................................ ................................ ..... 18 8.25 外观检查 ................................ ................................ ..... 18 8.26 金具镀锌检查 ................................ ................................ . 19 8.27 间隙距离检查 ................................ ............................