Description

Which tower carries a 500 kV line across long straight sections? Our 71 m heavy lattice tangent tower is a single-circuit suspension structure for 497 m design spans, with 4 conductors per phase for corridors moving roughly 1,000–1,500 MW. The longer span can reduce tower count by about 12–18% versus shorter layouts. Members are hot-dip galvanized angle steel, typically Q420 grade, bolted and flanged for repeatable field assembly, with suspension I-string insulators and OPGW shielding. Design follows IEC 60826 / GB 50545 with Class B wind and 15 mm ice for 50-year service. SOLARTODO LIMITED operates an ISO 9001:2015 quality system at its Gaoyou, Jiangsu plant; the business dates from 2014 and runs a US sales office in Austin, Texas. Contact: Cinn Song. Website: https://solartodo.com Product page: https://solartodo.com/products/power-tower/power-tower-71m-500kv-heavy-lattice-tangent-tower-flanged-2026-07-12