Composite Support Insulators

The Composite Support insulators are used to provide support to the Outdoor Cable Terminations rated up to 36kV. The insulator consists of a fiberglass core covered with weather resistance polymeric sheded sleeve and aluminium caps at both ends. These insulators are light in weight as compared to the Porcelain Insulators. The Composite Insulator design offers significant advantages like better performance in highly polluted environment, resistance to chemicals and UV radiation and are Vandal-Proof.

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CharacteristicsValue for 11kVValue for 33kVTest Method
Wet power frequency withstand Voltage28kV for 1 minute70kV for 1 minuteASTM D-149/IEC 60
Lightening impulse withstand Voltage95kV peak170kV peakASTM D-3426/IEC 60
Ordering RefVoltageL1 ± 3L2 (min)Creepage distance (min)
INSFG1111kV240140340
INSFG3333kV410310900