Itismainlyusedtoinsulateandsupportwiresinhigh-voltageoverheadtransmissionanddistributionlines.Itcanreplacesuspensioninsulatorsandpininsulators.Theporcelaincrossarminsulatoradoptsasolidnon-breakablestructure,withIthastheadvantagesofgoodself-cleaningperformance,safetyandreliability,lowcost,andmaterialsaving.