Its positioning is completely different from the multi-directional double-cross yoke. The three-hole layout is more linear, with multiple connections on one side. It is integrally forged without seams, which is the core source of its "high strength." Ordinary thin yokes, subjected to conductor tension and strong wind vibrations for extended periods, are prone to bending and hole deformation. This thickened three-hole yoke, made of high-quality carbon structural steel, significantly improves overall load-bearing capacity and fatigue resistance. It is resistant to deformation and cracking even after long-term outdoor operation, and is suitable for both long-term static loads and intermittent wind-induced vibration loads.
The three-hole layout design is highly targeted. The central hole connects to the tower side hanging ring, extension ring, or DB adjustment plate, while the holes on both sides connect the insulator strings and conductor fittings. A single yoke plate can simultaneously bear the tension of two sets of lines, eliminating the cumbersome assembly of multiple layers of hanging plates. Construction sites often encounter situations where hanging point space is limited, making it impossible to accommodate complex cross-structure fittings. The three-hole yoke plate is compact and takes up less assembly space, making disassembly and assembly easier in confined high-altitude areas. Assembly can be completed without deliberately adjusting the hanging string arrangement angle, saving considerable time spent on high-altitude work.
The anti-corrosion process fully meets standard power fitting specifications. The entire piece undergoes complete hot-dip galvanizing treatment, resulting in a uniform and thick coating that adheres firmly to the steel plate surface. Whether in rainy and humid mountainous areas, open fields with large temperature differences between day and night, or suburban towers with frequent sandstorms, the galvanized layer effectively isolates rainwater and air-borne oxidation and corrosion. Long-term outdoor placement will not result in large-scale rusting, eliminating the need for replacement every one to two years, effectively reducing manpower and material costs for later maintenance.
Its versatility is also a major advantage. The standard aperture can match conventional U-shaped hanging rings, extension rings, adjusting plates, and other accessories, eliminating the need for on-site grinding and enlarging; it can be directly assembled. Whether it's building new 35kV or 110kV transmission and distribution lines, or repairing old lines or upgrading partial string connections, the high-strength three-hole yoke plate is suitable for any situation requiring simultaneous mounting of two conductors in a limited installation space.
Don't underestimate these foundation mounting plates. Many long-term safety hazards in power lines stem from insufficient load-bearing capacity and concentrated stress in the fittings. The high-strength three-hole yoke plate, relying on a solid base material and a reasonable three-hole stress distribution, evenly distributes the tension of the conductors on both sides to the central connection point, preventing excessive local loads and reducing problems such as conductor wear and fitting loosening from the source. With its simple structure, reliable load-bearing capacity, and easy installation, it is a cost-effective and commonly used connecting fitting for engineering teams seeking stable and efficient construction.
