Corrosion of insulator and conductor hardware

WET-PROCESS PORCELAIN as used for high voltage insulators is well known for its ability to resist atmospheric corrosion. Insulator assemblies and associated fittings usually include hot-dip galvanized ferrous metal parts which have satisfactory corrosion resistance for normal service requirements. In industrial and certain coastal areas, however, the contaminated atmosphere increases the corrosive attack and shortens hardware life.