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OPGW Cable Optical Ground Wire Central Tube Fibre Cable
OPGW is also known as optical fibre composite overhead ground wire. It’s structure has both functions of ground wire and communication.
Description
Hone OPGW cable is also known as Optical Fibre Composite Overhead Ground Wire. Fibre unit is placed in high-voltage overhead transmission line ground wire. So this cable is a composite structure of both overhead ground wire and fibre communications, which forms the fibre communication network on the power transmission line. And suitable for new design or replacement of ground wire.
Due to the characteristics of anti electronmagnetic interference and light weight, fibres can be installed on the top of transmission line tower without considering problem of optimal hanging position and electromagnetic corrosion.
Application
Transmission Power Lines
Features
- Metal conductor wrapped opgw cable is more reliable and stable
- Superior mechanical properties for aluminum clad or aluminum alloy wire
- Low cost of installation when overhead ground wire and optical cable combined
- Commercial for new laying or upgrade of existing ground wire
Optical Characteristics
Optical Characteristics | G.652 | G.655 | 50/125μm | 62.5/125μm | |
---|---|---|---|---|---|
Attenuation (+20℃) | @850nm | ≤3.0 dB/km | ≤3.3 dB/km | ||
@1300nm | ≤1.0 dB/km | ≤1.0 dB/km | |||
@1310nm | ≤0.36 dB/km | ≤0.40 dB/km | @1310nm | ||
@1550nm | ≤0.22 dB/km | ≤0.23dB/km | |||
Bandwidth | @850nm | ≥500 MHz·km | ≥200 MHz·km | ||
@1300nm | ≥500 MHz·km | ≥500 MHz·km | |||
Numerical Aperture | 0.200±0.015NA | 0.275±0.015NA | |||
Cable Cut-off Wavelength λcc | ≤1260nm | ≤1450nm |
Technical Parameters
Fiber Count | Fiber Unit | Nominal Diameter (mm) | Weight (kg/km) | Rated Breaking Force (kN) | 20℃ DC Resistance (Ω/km) |
---|---|---|---|---|---|
OPGW 24 | 1 | 12.6 | 615.4 | 107.4 | 0.9718 |
OPGW 30 | 1 | 14.55 | 819.2 | 143.64 | 0.7244 |
OPGW 36 | 1 | 15.6 | 934.7 | 164.44 | 0.6326 |
OPGW 48 | 1 | 17.1 | 1125.0 | 193.32 | 0.5260 |
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