At Ningbo Changshi, we understand the importance of selecting the right communication cable for your power line project. Both All-Dielectric Self-Supporting (ADSS) and Optical Ground Wire (OPGW) are widely used, but they serve different purposes due to their distinct designs and functions.

ADSS Cable (All-Dielectric Self-Supporting)

• Structure: ADSS cables are entirely non-metallic and are built with a core of optical fibers protected by a strength member (typically aramid yarn) and an outer sheath. This all-dielectric design makes it immune to electromagnetic interference.

• Function: Its primary purpose is to provide high-speed data transmission for communication networks alongside power lines.

• Installation: ADSS cables are installed on the same support structures as the electrical conductors but are separate from them. A key advantage is that they can be installed on live power lines without the need for a power outage. This makes for faster, more cost-effective deployment.

• Best Use: Ideal for new communication infrastructure where an existing ground wire is already in place or where the project requires a solution that doesn't disrupt power service.

OPGW Cable (Optical Ground Wire)

• Structure: OPGW cables are a composite of optical fibers encased within a metallic, multi-strand tube. This design allows it to perform a dual function.

• Function: It acts as both a data transmission medium (via the optical fibers) and a grounding/lightning protection wire (via the metallic strands). It is typically mounted on the highest point of a power transmission tower to attract and safely ground lightning strikes.

• Installation: Installation of OPGW usually requires a power outage, as it replaces the traditional ground wire. This can make the installation process more complex and costly.

• Best Use: An excellent choice for new power line projects or for upgrading existing lines where the original ground wire needs to be replaced. It provides robust mechanical strength and essential protection against lightning.

In summary, the choice between ADSS and OPGW depends on your project's specific needs. At Ningbo Changshi Electric Power Machinery Manufacturing Limited, we provide the specialized tension stringing equipment and overhead tools and accessories to facilitate the safe and efficient installation of both types of cables for power line projects around the globe.