opgw optic cable for 220kv line 48 Core Opgw Cable
The central stainless steel tube is surrounded by single or double layers of aluminum clad steel wires(ACS) or mix ACS wires and aluminum alloy wires. are the most widely used cables ,their design is fully adapted to the most common electric line needs.
Applications
1.Optical fiber composite ground wire [OPGW] is suitable for installation on new power lines with double function of ground wire and communication.
2.Especially for installation on normal voitage and extra high voltage power lines.
3.lighting protection and conduct the short circuit current.
Technical Data
Structure Details | Named | No. | Diameter | ||
Center | 20%AS wire | 1 | 2.70 | mm | |
Layer 1 | 20%AS wire | 4 | 2.70 | mm | |
SUS-Tube | 2 | 2.70 | mm | ||
Layer 2 | 20%AS wire | 10 | 2.70 | mm | |
According to IEEE std 1138,IEC 60794-4 standards | |||||
Fiber No. & Type | 48 | G652D | |||
Standard Diameter | 13.50 | mm | |||
Supporting Cross Section | 97.30 | mm2 | |||
Section of AS wire | 97.30 | mm2 | |||
Approximate mass | 687.0 | kg/km | |||
Rated Tensile Strength | 117.0 | kN | |||
Maximum Allowable Tension(40%RTS) | 46.8 | N/mm2 | |||
Everyday Stress(25%RTS) | 29.3 | N/mm2 | |||
Strain Margin Stress(70%RTS) | 81.9 | N/mm2 | |||
Modulus of Elasticity | 162.0 | GPa | |||
Thermal Elongation Coefficient | 13.0 | ×10-6/ºC | |||
Calculated D.C. Resistance at 20ºC | 0.878 | Ω/km | |||
Short-Circuit Current Capacity(40~200ºC, 0.25s) | 45.3 | kA2·s | |||
Ratio between Pull and Weight | 17.40 | km | |||
Temperature | Installation | -10ºC~+50 | ºC | ||
Range: | Transportation and Operation | -40ºC~+80 | ºC |
Cross Section