Composite line post insulator is used to high voltage transmission line and distribution line and up to 132kV as one kind of composite insulators. And composite line post insulator has good performance of hydrophobicity and anti-pollution, high mechanical strength and can be installed easily. Same dimension of the fittings as porcelain pin insulator, so they can be exchanged.

Compare to porcelain line post insulator, composite line post insulator is the ideal solution for compact line applications in urban areas and composite line post insulator is also ideal for upgrading the capacity of existing lines with a narrow right of way – by increasing the voltage or the number of circuits.