Line post insulator is a kind of rigid insulator. The voltage of line post insulator is 10kV to 132kV. Line post insulator can be used in the ac power lines in common areas and medium and heavy polluted areas. Line posts are the ideal solution for compact line applications in urban areas. They are also ideal for upgrading the capacity of existing lines with a narrow right of way - by increasing the voltage or the number of circuits. Furthermore they have a reduced visual impact and are well-suited to innovative tower and pole designs.