Yoke Plate For Ground Wire

Core Structural Classification & Mechanical Layout：
Single Cross Four-Hole Ground Yoke Plate
The single cross yoke plate adopts symmetrical four-hole cross forging molding, with evenly distributed mounting holes at four branch ends. The symmetrical cross structure eliminates unbalanced stress concentration during wire tension transmission, which is the core design advantage over irregular connection brackets. Each hole maintains consistent wall thickness around the bore to avoid crack propagation under long-term alternating wind load and wire pulling force. The flat plate body allows flat lamination stacking during transportation, drastically cutting container space occupation and ocean freight cost for bulk export orders. Its four-hole symmetrical layout enables multi-directional ground wire branching connection, supporting parallel grounding cable split and multi-strand earth wire fixed routing on tower cross arms;

Double Cross Assembled Yoke Plate
Built based on two overlapped single cross yoke plates with high-tensile carbon steel bolts and anti-loose cotter pins, double cross ground yoke plate delivers doubled vertical bearing capacity and lateral structural rigidity. The bolted stacking design creates a dual-layer load-bearing buffer structure, which disperses concentrated impact force generated by ice coating, strong typhoon gusts or short-circuit instantaneous wire pull. The pre-installed pin fasteners eliminate on-site threading and anti-loose treatment work, cutting field assembly time by over 60% compared with separate loose part matching. This double cross variant is mandatory for extra-heavy load transmission lines carrying dual ground wire bundles, widely specified in national grid upgrade projects across Southeast Asia, Middle East and Eastern Europe;

Triangular Suspension Ground Yoke Plate
All triangular yoke plate models feature three-hole triangular geometric mechanics: two lateral mounting holes for tower frame fixation and one central swivel bore for ground wire suspension hardware assembly. The triangular stable geometric structure resists lateral torsion and vertical sag deformation far better than flat rectangular brackets under long-term dynamic wind vibration. Our factory supplies three triangular sub-types: thickened heavy-duty triangle yoke for 220kV-500kV high-voltage trunk lines, thin lightweight triangle plate for 10kV-35kV distribution poles, and narrow elongated triangular transition yoke for narrow tower arm limited installation space. The central enlarged swivel hole is precision machined with smooth inner wall to prevent wire fitting abrasion during swing displacement caused by wind

Material and Surface Treatment Core Advantages for Global Outdoor Service
All raw blanks are forged from Q235B low carbon structural steel or optional Q355 high-strength alloy steel upon client request, instead of cheap cast iron prone to brittle fracture under dynamic load. The whole-piece forging forming process ensures uniform metal fiber flow inside the plate, removing internal air pores and sand holes common in casting fittings, so the ultimate tensile breaking load reaches the design standard without hidden mechanical failure risks;
The full-surface hot-dip galvanizing anti-corrosion process is implemented in compliance with ISO 1461 international galvanization specification, with zinc coating thickness controlled at 85μm–120μm adjustable according to customer local environment demands. For coastal marine atmosphere with heavy salt fog, we boost zinc thickness up to 150μm, adding optional passivation sealing treatment to extend anti-rust service life over 30 years under continuous outdoor exposure. Unlike spray-painted or electroplated cheap alternatives that peel off within 2–5 years, hot-dip galvanization forms a metallurgically bonded zinc-iron alloy layer that resists scratch abrasion during transportation and installation;
Additional process optimizations are tailored for overseas construction teams: all hole inner walls are deburred and polished to eliminate sharp edges that scratch grounding cables and matching U-bolts; plate edges adopt rounded transition design to prevent insulation layer damage of earthing wires during long-term friction. Each finished plate is marked with permanent embossed load rating, specification model and production batch code for full traceability during power grid inspection and maintenance

All product mechanical performance indicators pass third-party independent load testing labs recognized by CE, ISO and national grid certification authorities in major export destinations. We provide full sets of technical documents including load test reports, galvanization thickness inspection certificates and dimension tolerance drawings for tender bidding of large-scale government power infrastructure projects. Bulk order flexible MOQ, customized stamping size, logo embossing and special alloy material upgrades are all supported to satisfy diversified engineering procurement demands worldwide