OPGW optical cable, namely optical fiber overhead composite ground wire. OPGW has the dual functions of communication information transmission and ground wire. OPGW optical cable is generally used for new lines and has low cost.
OPGW optical cables are divided into: aluminum tube type, aluminum skeleton type and (stainless) steel tube type. The optical fiber is inserted into a casing made of stainless steel, and the casing is surrounded by aluminum clad steel wire (AS), and the outer layer is wrapped with aluminum alloy wire (AA), and then twisted into a cable.
1、OPGW optical cable is mainly used in 110KV, 220KV, 550KV voltage level lines, generally used in newly built lines;
2、For lines with high voltage exceeding 110kv, the span is relatively large (generally more than 250M);
3、It is easy to maintain and easy to solve the problem of line crossing. Its mechanical characteristics can meet the large span of the line;
4、The outer layer of OPGW is metal armor, which has no effect on high voltage electrocorrosion and degradation;
5、OPGW must be powered off during construction, and the power outage loss is relatively large, so OPGW should be used in newly built high-voltage lines above 110kv.
1、Using advanced stainless steel tube production technology, the tube is filled with water-blocking compounds, which can effectively protect the optical fiber;
2、Good compact structure and high tensile strength;
3、The short-circuit current has little mutual interference between the power grid and the communication network;
4、The excess length of the optical fiber and the cable core twisting pitch ensure that the OPGW optical cable is not stressed at the maximum operating tension;
5、It is similar to the specifications of the commonly used ground wire, and it is very convenient to install and can directly replace the original ground wire.
OPGW Cable Detail reguirements need to be sent to us for cable desian and price calculation. Below requirements are a must.
A、Power transmission line voltage level
B、fiber count
C、Cable structure drawing & diameter
D、Tensile strength
E、Short circuit capacity
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