The performance of the optical cable transfer box meets the requirements of the outdoor environment, so the only way to be eroded inside the optical cable transfer box is through the cable entrance hole. Obviously, if the inlet hole is not well sealed, a large amount of moisture in the manhole will directly flow into the box body, causing direct damage to the parts in the box and even the optical passive components.
Generally, the rosin plus paraffin (1:1) mixed sealing method is used in the optical cable transfer box project. Of course, glass glue, plasticine or special synthetic sealing materials are also used. However, no matter what material is used, it must have basic properties such as fast setting, insoluble in water, good temperature performance, and no drying cracks.
Doing a good job of sealing the optical cable transfer box will better protect and use the optical cable.
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