The optical power ground wire (OPGW), also known as the optical ground wire, is a type of cable or wire that is used in transmission line construction and contains the optical fiber unit for communication.
It has two functions, one is as a lightning protection wire for transmission lines, providing shielding protection for the transmission wire against lightning strikes and discharges.
Description:
The optical power ground wire (OPGW), also known as the optical ground wire, is a type of cable or wire that is used in transmission line construction and contains the optical fiber unit for communication. OPGW optical cables are mainly used on lines with voltage levels of 100kv, 220kv, and 500kv. Affected by factors such as line power outages, safety, etc., they are mostly used in newly-built lines.
Advantages:
l Using good stainless steel tube production technology, the tube is filled with water blocking compounds, which can effectively protect the optical fiber
l Good compactness and high tensile strength
l The short-circuit current has little mutual interference between the power grid and the communication network
l Similar to the common ground wire specifications, it is very convenient to erect and can directly replace the original ground wire
Types of OPGW Cable:
Application:
OPGW aerial optical cable can adopt aluminum tube type, aluminum frame type, and (stainless) steel tube type structure respectively according to user needs. The optical fiber is sheathed in a tube made of stainless steel, the tube is surrounded by aluminum-clad steel wire (AS wire), and the outer layer is wrapped with aluminum alloy wire (AA wire) and twisted into a cable. We customize 2, 4, 6, 12, 24, 48 cores of OPGW optical fiber cable. Meanwhile, the price of our OPGW fiber optic cable is competitive
l OPGW optical cables are mainly used on 110KV, 220KV, 550KV voltage level lines, and are mostly used in newly-built lines due to factors such as line power outages and safety.
l Lines with high voltage exceeding 110kv have a larger range (generally above 250M).
l Easy to maintain, easy to solve the problem of line crossing, and its mechanical characteristics can meet the line of large crossing;
l The outer layer of OPGW is metal armor, which does not affect high voltage electric corrosion and degradation.
l OPGW must be powered off during construction, and the power loss is relatively large, so OPGW should be used in newly built high-voltage lines above 110kv.
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