Gapless porcelain coated metal oxide arrester (hereinafter referred to as arrester) for AC power system is used to limit system overvoltage and protect power transmission and transformation products from overvoltage damage.
Operating environment: minimum temperature: - 35 ℃; Maximum temperature: + 45 ℃; The daily average temperature shall not exceed: + 35 ℃; Monthly average maximum relative humidity: 95% (at 25 ℃); Maximum wind speed: 34 m / S; It can be designed according to the special use conditions of users.
Performance characteristics:
1. The internal structure design is reasonable and the potential distribution is uniform;
2. It has high insulation level and high operation reliability;
3. High mechanical strength and strong impact resistance;
4. Good nonlinearity and excellent protection level.

交流电力系统用无间隙瓷外套金属氧化物避雷器(以下简称避雷器)，用于限制系统过电压，使输变电产品免受过电压损害。

使用环境条件：最低温度：－35℃；最高温度：＋45℃；日平均温度不超过：＋35℃;月平均最大相对湿度：95%（在25℃）；最大风速：34 m/s；可根据用户特殊使用条件进行针对性设计。

性能特点：
1、内部结构设计合理，电位分布均匀；
2、具有较高的绝缘水平，运行可靠性高；
3、机械强度高，抗冲击能力强；
4、非线性好，保护水平优异。