How to solve OPGW the problem of broken strand caused by lightning strike

When purchasing an OPGW manufacturer, the manufacturer must have certain production strength, which can not only give certain guiding opinions on the production and design of OPGW optical cable, but also have certain guarantee in the after-sales service of OPGW optical cable.

The main fault in the application of OPGW optical cable is strand breakage caused by lightning. The current solutions mainly include the following:

1. Develop new lightning protection outer materials. The high lightning protection OPGW developed in Finland in 2001 adopts high-grade galvanized steel wire and aluminum tube to protect optical fiber. High grade galvanized steel needs more energy to melt under lightning.

2. Aluminum clad steel wire shall be used for the outer layer as much as possible to increase the aluminum clad thickness of aluminum clad steel wire.

3. Try to increase the design air gap between the outer and inner strands to avoid heat transfer.

4. Under the same material, use a larger outer strand diameter. After the material and structure of OPGW optical cable are determined, its lightning protection performance is determined.