ADSS cables is widely used at present.
All-dielectric material: Contains no metal components, resists electromagnetic interference and electrical corrosion, and is suitable for high-voltage transmission lines.
Self-supporting design: Its own reinforcement components (such as aramid yarn) bear its own weight and external loads, eliminating the need for additional steel strands.
Hanging point selection: This is determined based on the voltage level. For voltages 110 kV and above, electric field strength calculations and the use of an anti-tracking (AT) sheath are required.
* Usage and Connection Procedures
| Step | Operating points | Materials/Tools |
|
Set up and fix |
It is directly suspended from power poles and towers and fixed with hardware (such as pre-twisted tensioned wire clamps), and the installation quality can be inspected with the naked eye |
Pre-twisted wire fittings, suspended joint boxes |
|
Optical fiber splicing
|
The fusion welding is completed through the joint box. It is necessary to ensure that it is waterproof and moisture-proof. In a high-voltage environment, strong electricity and signals need to be isolated |
|
|
Network access |
The optical fiber is separated at the terminal joint box and introduced into the communication room to connect with equipment such as optical transceivers and patch panels |
ODF/Patch cord |
ADSS optical cables, due to their lack of metal components, self-supporting structure, and corrosion resistance, are widely used in the following scenarios:
--High-voltage transmission lines: These cables are suspended directly from 110kV and above power towers, enabling simultaneous power transmission and communications, such as smart grid data backhaul.
--Overhead communication lines: These cables are suitable for long-distance deployments, such as those spanning valleys and rivers, with spans of up to 100-300 meters and withstand temperatures ranging from -40°C to 70°C.
--Special deployment environments: Their all-dielectric properties prevent ground faults in locations subject to strong electromagnetic interference, high salt fog in coastal areas, or at high altitudes.
