OPGW Cables:
OPGW CABLES
OPGW is one of the special optical fiber cables electrical power lines which are installed at the towers
or poles of the aerial power transmission lines.
Global Utilities can supply following parts according to IEEE Std 1138-2002:IEEE standard Construction of Composite
Fiber optic overhead Ground wire (OPGW) for use on Electric utility power lines and IEEE Std 1222-2004:IEEE Standard for all-dielectric self-supporting Fiber optic cable.
Tests
OPGW offered by globalutiliites. has been tested for all major type tests from kinetrics Lab in Ontario, Canada.
| Test Name | Specification |
|---|---|
| Aeolian Vibration Test | IEEE Std 1138, paragraph 4.1.1.4 |
| Bend Test | IEC 60794-1 E11, Procedure 2 |
| Cable Cut-off Wavelength | IEEE Std 1138, paragraph 4.1.1.12 |
| Creep Test | IEEE Std 1138, paragraph 4.1.1.8 |
| Crush Test | IEEE Std 1138, paragraph 4.1.1.7 |
| Galloping Test | IEEE Std 1138, paragraph 4.1.1.5 |
| Impact Test | IEEE Std 1138, paragraph 4.1.1.7 |
| Lightning Test | IEEE Std 4 |
| Salt Spray Corrosion Test | EIA/TIA 455-24A |
| Seepage of Flooding Compound | IEEE Std 1138, paragraph 4.1.1.2 |
| Sheave Test | IEEE Std 1138, paragraph 4.1.1.6 |
| Short Circuit Test | IEEE Std 1138, paragraph 4.1.1.3 |
| Strain Margin/Tensile Performance | IEEE Std 1138, paragraph 4.1.1.10 |
| Stress-Strain/Fibre-Strain Test | IEEE Std 1138, paragraph 4.1.1.9/4.1.1.11 |
| Temperature Cycle Test | IEEE Std 1138, paragraph 4.1.1.13 |
| Water Ingress Test | IEEE Std 1138, paragraph 4.1.1.1 |
Design Performance
- Fiber Court and Type
- Structure of Cable
- Overall Diameter (mm)
- Calculated Sectional Area (mm²)
- Calculated Mass(kg/km)
- RTS-rated Tensile Strength(kN)
- Elastic Modulus(N/mm²)
- Linear Expansion Coefficient(1/°C)
- DC Resistance( Ω/km)
- Short Current Capacity(kA²s)
- MAT-Max Allowable Tensile Strength(kN)
- Storage and Operating Temperature (°C)
- Strain Margin(%)
- Outer Layer Standing Direction
CENTRAL AL-COVERED STEEL TUBE OPGW
Structure Characteristic and Application
- Al-covered steel tube design increasing Al sectional area, the
better fault current and lightning resistance performance - Extremely good corrosion resistance
- Used in the transmission line which specifies the small cable
diameter and bigger fault current. - Extremely corrosion condition, such as littoral, chemical areas
Structure Drawing
LIST OF AL TUBE STRUCTURE OPGW
Structure Characteristic and Application
- Small outer diameter and light weight, no additional load for tower or pole
- High Breaking load, applicable in coastal area and other terrible environment.Different colring loose tube, easy to distinguish multi-core OPGW ans splice optical fiber
- Reasonable structure and secondary fiber excess length ensures there is no fiber strain under maximum allowable load.
Structure Drawing
LIGHTNING RESISTANT CENTRAL STEEL TUBE OPGW WITH COMPRESSED WIRES
Structure Characteristic and Application
- Compressing round AS wires as sector AS wires during Standing
- Increasing cable cross sectional area and fault current capacity at the
same cable diameter - Extremely increasing lightning resistant performance for increasing the
outer wires diameter at the same cable diameter - Decreasing cable diameter at the same cable cross sectional area
- Used in the transmission line which specifies the small cable diameter
and bigger fault current - Used in high lightning storm areas
Structure Drawing
