OPGW cable uses all metal materials, which has good mechanical and environmental properties. It’s suitable for high voltage electric lines over 110kv. The cable structures are commonly central tube and stranded types.
OPGW is a overhead ground cable with built-in fibers, owing mutual functions of overhead ground cable and optical communication. It’s mainly applied to communication lines which cross 110kV, 22kV, 500kV, 750kV and new built aerial high voltage power transmission system. It also can be used to replace existed ground cable in old aerial high voltage power transmission system, and increasing new optical communication lines, transporting short circuit electricity and protecting it from thunder.
Supporting Cross Section | 135.9 mm2 |
Section of AS Wire | 22.64 mm2 |
Section of AA Wire | 113.22 mm 2 |
Permissible Maximum Working Stress (40% RTS) | 178.7 N/m m2 |
Everyday Stress(EDS) (18%~25% RTS) | 80.4 ~111.7 N/mm 2 |
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