FIBER GLASS ROD OF SILICON RUBBER INSULATOR(FRP/ECR CORE)
The rod of polymeric insulator has very good performance on mechanical tensile property, while its cantilever load performance is not so optimizing as the tensile property. Even though in certain projects we use polymer insulator post type in power substation, its bending load and deflection have some problem compared with traditional ceramic post insulator.
For common silicon rubber insulator of 11,33kV, diameter of rod of insulator can be 16mm, 18mm or more. While for power substation and transmission line, diameter of fiber glass rod shall be bigger to enable bigger mechanical breaking load.