Introduction to OPGW cable products:
OPGW optical cable It is also called optical fiber composite overhead ground wire, OPGW optical cable Generally, aluminum tube type, aluminum frame type and (stainless) steel pipe structure are used. The structure of OPGW cable is two hundred and fifty μ m The sheath is made of stainless steel around the sleeve（ ACS The outer layer is covered with aluminum alloy wire（ AA Lay the cable in layers.
OPGW Photo of optical cable products:
OPGW Features of optical cable products:
. Using advanced stainless steel tube production technology, the tube is filled with water blocking compounds, which can effectively protect the optical fiber ；
. Compact structure, high tensile strength ；
. Short circuit current has little mutual interference between power grid and communication network ；
. Guarantee of fiber excess length and cable core stranding pitch OPGW optical cable No stress at maximum operating tension ；
. It is convenient to replace the ground wire, and it is very similar to the original ground wire 。
OPGW Optical cable application:
one 、 OPGW Optical cable is mainly used in 110KV 、 220KV 、 550KV Due to the influence of power failure, safety and other factors, voltage grade lines are mostly used in new lines.
two , high pressure over 110kv The span of the line is large (generally in the 250M Above).
three It is easy to maintain, easy to solve the problem of line crossing, and its mechanical characteristics can meet the requirements of large-scale line crossing.
four 、 OPGW The outer layer is metal armor, which has no effect on high voltage corrosion and degradation.
five 、 OPGW During the construction, the power supply must be cut off, and the power failure loss is large, so the new building is under construction 110kv It should be used in the above high voltage lines OPGW 。