Answer: The choice depends on the specific project requirements. OPGW is generally the preferred choice for new high-voltage transmission lines (e.g., 110kV and above) where an overhead ground wire is required. Its metallic structure provides essential lightning protection and grounding, while also providing an integrated communication channel.

ADSS cables are ideal for adding new communication lines to existing high-voltage transmission and distribution lines without replacing the ground wire. Since they are all-dielectric and non-conductive, they can be installed without a power outage, making them a cost-effective and flexible solution for modernizing communication networks.