Porcelain cross arm insulator of high voltage line is used to insulate and support conductor in high voltage overhead transmission and distribution line. It can replace suspension insulator and pin insulator. Porcelain cross arm insulator is made of solid non breakdown porcelain parts and metal accessories. It has the advantages of good self-cleaning, simple maintenance, low line material, low cost, safe and reliable operation.

Model Description: s-porcelain cross arm insulator of high voltage line; the number after model is the design sequence number; fraction after dash, numerator is rated voltage (kV), denominator is rated bending failure load (kV).