New high polymer cable bridge, with all technical specifications reaching domestic standards. The bridge and crossarm use solid cross-section structures, with a rational mechanical design that achieves breakthroughs in large and even extra-large spans without support. It features strong flame retardancy with an oxygen index over 40%. It can be widely used in various highly corrosive environments, provides static shielding, and resists aging without fading. It can be used outdoors for extended periods, with a service life of over 50 years. The entire material is recyclable, ensuring no environmental pollution. The cover plate features a central control structure, is non-collapsible, lightweight, and has high strength. The cover plate and bridge side panels are secured with an internal clip structure for a tight fit, achieving IP65 protection. The cover plate is also secured with self-tapping screws at the top, forming a single unit that can withstand wind and vibration, is durable, easy to install, and saves labor and material resources.