Central Al-covered stainless steel tube OPGW Single/Double Armour Layers The central Al-covered steel tube is surrounded by single or double layers of...
Central Tube OPGW Single/Double Armour layers The central stainless steel tube is surrounded by single or double layers of aluminium clad steel wires(...
Typical Designs of Lightning Resistant Central Stainless Steel Tube OPGW with Compressed Wires The central stainless steel tube is surrounded by doubl...