hengtong has invested and established world-class production bases for extra-high-voltage electrical cables and undersea cables, and introduced a full set of world’s top equipment for extra-high-voltage cables and submarine cables. it owns a 180-meter-high vcv tower, the highest in asia, and a submarine cable terminal that can accommodate two 10,000-dwt ships. hengtong has also independently developed the high-voltage (500 kv), large-cross-section (2,500 mm2), and long-spanning (over 50 km) xlpe optical fiber composite submarine wires, flexible and long high-voltage dc submarine composite wires (±320kv) and flexible joints of submarine cables, all of which have reached the top level in the world. the “ultra-length feeding repeaterless submarine optical cable” of hengtong breaks the bottleneck in the domestic market and becomes an alternative of imported products.
