Profile: Zhengzhou Orient Power Co., Ltd manufactures insulators. Our products include model insulator porcelain insulators, polymer insulators, insulator HDPE. Insulator types include suspension insulators, pin insulators, line post insulator, pin type insulator pole, reel insulators, insulator retained for railway power grid voltage level from 400V to 500KV, mechanical classes to 300KN. We also supply high voltage insulators, medium voltage & low voltage transmission lines and substations and power distribution. Line post type insulator, polymer insulator, vertical mount and polymer line post type horizontal mounting principles are two types of line post insulators type. There are same use as line porcelain insulators whistle post (column type) for overhead transmission and distribution lines. The core line post insulator type of polymer should be composed of glass fibers reinforced electric type, resistant to corrosion caused by acids and therefore to brittle fracture, impregnated with epoxy resin grade. The core line post insulator type of polymeric boron must be free of cracks and bubbles. It should be free of voids, foreign material and manufacturing defects.