Product News

The connection part of the wire and the fittings is the key area for the installation of spiral vibration damper, because this part is the place where the vibration stress of the wire is most concentrated. When the wire vibrates, the metal fittings as the fixed end will limit the displacement of the wire, resulting in greater bending stress and fatigue damage at the connection between the wire and the metal fittings. This is also a high-incidence area of wire strand failure. Therefore, spiral vibration damper is usually installed on both sides of the wire close to the fittings, and the specific distance needs to be determined according to the type of fittings and the diameter of the wire.

From the point of view of installation convenience, the easy-to-use ADSS dead end tension clamp should have the characteristics of lightweight, modular, and easy to operate, and can be installed without complex tools and professional skills.

The working logic of ADSS dead end tension clamp is a balance between safely transmitting tension and protecting the optical cable from damage.

​The corona effect is a special discharge phenomenon under a high-voltage electric field. When the line voltage rises to a certain extent, the charge density on the surface of the wire increases abruptly, especially at the tip, joint or burr, the electric field strength will be quickly concentrated.

From the point of view of structure and material, the guard line is made of multiple strands of high-strength aluminum alloy prefabricated into a spiral structure. Each strand is heat-treated and formed, which can make the spiral arc and the outer diameter of the wire highly match. This preformed design is different from the traditional rigid wire protection fittings. Its flexible structure can closely fit the surface of the wire to avoid the local stress concentration of the wire caused by rigid contact.

​From the functional point of view, the main role of suspension clamp for OPGW cable is to achieve reliable connection and precise positioning between the OPGW optical cable and the transmission tower.