24 Cores ADSS Fiber Optic Cable adopts loose tube layer stranded structure, and the loose tube is filled with water blocking compound. Then, two layers of aramid fibers are twisted bidirectionally for reinforcement, and finally a polyethylene outer sheath or an electric tracking resistant outer sheath is extruded.
Application:
ADSS optic cables are widely used on 220KV, 110KV, 35KV voltage level transmission lines, especially on existing lines. It provides a feasible way for power departments to directly use high-voltage transmission line towers to build their own communication networks. ADSS optic cable is suitable for overhead laying across rivers, valleys, lightning concentrated areas and special tension environments.
ADSS cable is installed 10 ft to 20 ft (3m to 6m) below the phase conductors. Grounded armor rod assemblies support the fiber-optic cable at each supporting structure. Utilities have reported failures of ADSS installed on their high voltage lines. The high electric field on transmission lines generates continuous corona discharge at the end of supporting armor rods. This discharge leads to cable deterioration. In polluted environments, dry band arcing causes cable deterioration when fog or dew occasionally wet the cable. ADSS life expectancy on power lines depends on the following factors:
Electrical
Corona effect
Dry-Band arcing
Space potential effect
Mechanical
Span length and sag
Tension on cables
Environmental
Wind velocity and Aeolian vibration
Sheath composition for UV resistance (UV from the sun)
Pollution & temperature
24 Core ADSS Fiber & Cable Specification
| Optical Characteristics | |||||||||||||||||||
| G.652.D | G.655 | 50/125um | 62.5/125um | ||||||||||||||||
| Attenuation | @850nm | - | - | ≤3.0 dB/km | ≤3.0 dB/km | ||||||||||||||
| @1300nm | - | - | ≤1.0 dB/km | ≤1.0 dB/km | |||||||||||||||
| @1310nm | ≤0.36 dB/km | ≤0.40 dB/km | - | - | |||||||||||||||
| @1550nm | ≤0.22 dB/km | ≤0.23 dB/km | - | - | |||||||||||||||
| Bandwidth | @850nm | - | - | ≥500 MHz · km | ≥200 MHz · km | ||||||||||||||
| @1300nm | - | - | ≥1000 MHz · km | ≥600 MHz · km | |||||||||||||||
| Polarization mode | Individual fiber | ≤0.20 ps/√km | ≤0.20 ps/√km | - | - | ||||||||||||||
| Design link value (M=20,Q=0.01%) | ≤0.10 ps/√km | ≤0.10 ps/√km | - | - | |||||||||||||||
| Technical Data | |||||||||||||||||||
| Item | Contents | Fibers | |||||||||||||||||
| Fibre Count | 6|12|24 | 48 | 72 | 96 | 144 | 288 | |||||||||||||
| Loose Tube | Tubes* Fbres/Tube | 1x6 | 2x6 4x6 |
6x 8 4x12 |
6x12 | 8x12 | 12x12 | 24x12 | ||||||||||||
| Outer diameter (mm) | 1.8 | 2.0 | 2.5 | 2.5 | 2.5 | 2.5 | |||||||||||||
| Adjustable (OEM) | 1.5|2.0 | 1.8|2.3 | 2.1|2.3 | 2.1|2.3 | 2.1|2.3 | 2.1|2.3 | |||||||||||||
| Central strength member | Material | Glass Fbre Reinforced Plasticrod (GFRP) | |||||||||||||||||
| Diameter (mm) | 2.0 | 2.0 | 2.5 | 2.8 | 3.7 | 2.6 | |||||||||||||
| Adjustable (OEM) | 1.8|2.3 | 1.8|2.3 | 2.5 | 2.8 | 3.7 | 2.6 | |||||||||||||
| PE coated diameter (mm) | No | 4.2 | 7.4 | 4.8 | |||||||||||||||
| Water Blocking | Material | Water blocking tape | |||||||||||||||||
| Peripheral Strength | Material | Aramid Yarn | |||||||||||||||||
| Outer Sheath | Thickness (mm) | 1.8mm(1.5-2.0mm OEM) HDPE | |||||||||||||||||
| Cable diameter(mm) Approx. | 9.5 | 9.5|10 | 12.2 | 13.9 | 17.1 | 20.2 | |||||||||||||
| Cable diameter(mm) Adjustable (OEM) | 8.0|8.5|9.0 | 10.5|11.0 | |||||||||||||||||
| Operating temperature range(℃) | From -40~+70 | ||||||||||||||||||
| Max. span (m) | 80m | 100m | 120m | 200m | 250m | ||||||||||||||||||
| Climate condition | No Ice,25m/s Max Wind Speed | ||||||||||||||||||
| MAT | Design according to customer requirements | ||||||||||||||||||
| √ Other structure and fibre count are also available according to customer requirements. | |||||||||||||||||||
| √ Cable diameter and weight in this table is typical value, which will fluctuate according to different designs | |||||||||||||||||||
| √ The span needs to be recalculated due to other climate conditions according to the installation area. | |||||||||||||||||||
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