目录
1 范围................................................1
2规范性引用文件............................................1
3使用环境条件.............................................1
3.1正常运行条件..........................................1
3.2异常运行条件..........................................1
4电力系统条件............................................  2
4.1系统标称电压（化）和系统最高工作电压（％）...........................2
4.2系统额定频率..........................................2
4.3系统接地方式..........................................2
4.4接地故障因数..........................................2
4.5接地故障持续时间........................................2
5避雷器类型..............................................3
5.1按用途分类...........................................3
5.2按结构分类...........................................3
5.3按外套材质分类.........................................4
6避雷器选择的一般程序.........................................5
7避雷器参数选择和应用..........................................5
7.1持续运行电压（C7c） ....................................5
7.2 额定电压（生）........................................6
7.3 参考电压（^） .......................................8
7.4标称放电电流..........................................8
7.5工频电压耐受时间特性......................................8
7.6能量吸收能力..........................................9
7.7避雷器的保护水平与绝缘配合..................................11
7.8耐短路电流能力...............................:........12
7.9避雷器的外绝缘和耐污性能...................................13
7.10局部放电和无线电干扰性能..................................13
7.11机械性能和抗震性能.....................................14
7.12密封性能..........................................14
7.13耐气候老化及耐湿气浸入性能...............................  14
7.14环境性能..........................................14
7.15有间隙避雷器放电特性....................................15
8检验................................................15
8.1 一般要求..........................................15
8.2型式试验...........................................16
8.3定期试验...........................................19
8.4抽样试验...........................................20