http://www.laurence-group.com/....mv-switch-gear/media
33kv polymeric Surge Arrester first is to protect electrical equipment.In many cases, our electrical equipment will receive an instantaneous high-voltage shock and thus need to use 33kv polymeric Surge Arrester to protect electrical equipment. The second is to protect electrical appliances from lightning damage. The 33kv polymeric Surge Arrester can be used as a lightning rod to effectively protect the safety of electrical appliances