OPGW is 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.
| Cable Diameter | 15.50 mm |
| Cable Weight | 475 kg/km |
| Supporting Cross Section | 135.9 mm2 |
| Section of AS Wire | 22.64 mm2 |
| Section of AA Wire | 113.22 mm 2 |
| Rate Tensile Strength (RTS) | 60.7kN |
| Modulus of Elasticity (E-Modulus) | 81.2kN/mm2 |
| Thermal Elongation Coefficient | 19.7x215;10-6 /℃ |
| Permissible Maximum Working Stress (40% RTS) | 178.7 N/m m2 |
| Everyday Stress（EDS) (18%~25% RTS) | 80.4 ~111.7 N/mm 2 |
| Ultimate Exceptional Stress (70% RTS) | 312.8 N/mm 2 |
| DC Resistance | 0.272 /km |
| Short Time Current (0.25s,40℃~200℃) | 25.1 kA |
| Short Time Current Capacity I2t | 158.1 kA2S |
| Ratio between Pull and Weight | 13.0 km |
| Installation Temperature | -10 ℃~ +50 ℃ |
| Transportation Operation Temperature | -40 ℃ ~ +80 ℃ |
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