Product Introduction： The pollution of the surface of the insulator contains soluble components and insoluble components. Among them, the gray density (NSDD) refers to the ratio of the insoluble components in the pollution of the surface layer of the insulator to the sur...

Product Introduction： Used for 35 ~ 500KV power lines (series connection), insulation resistance distribution (in the case of power failure detection insulation resistance). In order to determine the degree of insulation of the insulator. …...