customized LV Insulator Name: porcelain spool insulator Type: 53-3 porcelain spool insulator Related type: 53-1, 53-2, 53-3, 53-4, 53-5 Voltage Range: 0.4kV~33kV Standard: The ANSI standard 29.3 Graze colors of insulators: Brown or light gray Mechanical failing load: 9kN,13kN,18kN,20kN,27kN and as per client鈥檚 request Material: Alumina and silica porcelain Application: Overhead lines and transmission lines Porcelain spool insulators are mainly used to insulate and support the secondary conductors at the pol