High voltage line post porcelain insulator is used for insulating and supporting conductor in high voltage overhead transmission and transformation line. According to the bending failure load, it is divided into four strength grades of 3kN, 5kN, 8kN and 12.5kN, and it is divided into vertical installation and horizontal installation according to its installation mode. It can be divided into top binding type and top clamp type according to its connection mode with high-voltage conductor.

This kind of products are non breakdown type. According to different use requirements, products of different specifications are selected, which are reliable, safe and have a long service life.