The Selection Principle of OPGW Fiber Optic Cable
OPGW fiber optic cable is mainly used in 500KV, 220KV, and 110KV voltage level lines , affected by line blackout, security, and other factors, and mostly used in new lines. We should consider the following points when choosing an OPGW optical fiber cable : 1. the requirements of meteorological conditions, the requirements of its own tensile strength, and the requirements of the allowable design load of the tower should be met. 2. The main technical data to be considered in the design of OPGW are: fiber type, fiber core number, fiber diameter, fiber cross-sectional area, fiber unit mass, ultimate tension strength, short-circuit current, DC resistance, modulus of elasticity, coefficient of thermal expansion, average annual operating stress, minimum bending diameter, maximum coil length, etc. 3. OPGW fiber optic cable can be selected under the condition that the ambient temperature is +15℃, no ice, no wind, and the arc droop of another ground wire is kept consistent. 4. Determination...