ОКГТ-ц
General information
OPGW (ОКГТ-ц) type cables stretched along the overhead power transmission line to protect wires from direct lightning strikes and to perform the function of data transmission through optical fibers
Structural Design
The cable with a core in the form of a central optical tube of ø 3.8 mm diameter, with internally placed G.652.D optical fibers filled with a hydrophobic gel throughout the entire length of a cable. The core is reinforced with 6 layers (ø 3.9 mm) of aluminum-sheathed steel wires.
- Optical fiber
- Hydrophobic gel
- Stainless steel tube
- Aluminum-sheathed steel wire
GENERAL TECHNICAL SPECIFICATIONS:
Number of fibers | Attenuation rate, dB/km | Acceptable tensile strength, kN | Temperature range during operation, °С | Outer diameter, mm | Weight of a 1 km long cable, kg |
48 | <0.22/ <0.36 | 90 | -60…+80 | 11.7 | ~ 460 |
Installation temperature | -30 °C |
Temperature range during transportation and storage | -60 ºC......+70 ºC |
Minimum bend radius | 20xD |
For a single-tube cable OPGW (ОКГТ-ц) | 33.0÷237 kN |
Crush strength | 100kq/10 mm |
| Temperature of installation | -30°C |
| Temperature range of transportation and storage | -60ºC......+70ºC |
| Minimum bend radius | 20xD |
| For a single-tube cable OPGW (ОКГТ-ц) | 33.0÷237 kN |
| Crash strength | 100kq/10 mm |
