Porcelain pin post insulator has the advantage of pin insulator and line post insulator. Porcelain pin post insulator increases the creepage distance and protected creepage distance and enables the insulator used on high polluted areas and seaside area

Specifications of porcelain pin post insulator:
One type of porcelain pin post insulator is widely used in South Asian countries, this ceramic pin post insulator has a creepage distance 520mm, and protected creepage distance 260mm, cantilever strength 12.5KN. 
There are some popular porcelain pin post insulator used in South American countries, and this kind of ceramic insulator can up until 72.5KV.