String Type Insulators

These insulators are used for suspension or tension in
medium voltage and high voltage overhead transmission
and distribution lines .We have two main groups of string
insulators:
Ball and socket coupling normal type string insulators
• U-40 BL/ K-1 ( with mechanical failing load of 40 kN)
• U-60 BL/K-2 ( with electromechanical failing load of 60
kN)
• U-70 BL/K-2 ( with electromechanical failing load of 70
kN)
• U-100 BL/K-2 ( with electromechanical failing load of
100 kN)
• U-120 BL/K-2 ( with electromechanical failing load of
120 kN)
Ball and socket coupling anti – pollution (fog) type string
insulators
• U-60 BLP
• U-70 BLP
• U-100 BLP