Overhead ground wire optical cable, stainless steel OPGW optical cable, OPGW optical cable manufacturer, OPGW power optical cable

Description :

　　OPGW fiber optic cable manufacturer, OPGW fiber optic cable northern manufacturer

　　OPGW optical cable is an essential communication lightning protection conductor for the installation of new power lines. The name of OPGW optical cable is: Fiber optic composite overhead conductor. Fiber optic composite overhead ground wire (OPGW) optical cable serves as a shielding and lightning protection line for transmission lines, providing protection against lightning flashover discharge in power lines. In the event of a short circuit, it shields the transmission lines and reduces the mutual interference of short-circuit currents between the power grid and communication lines. Network. At the same time, it can transmit audio, video, data, and various control signals through fiber optic composites in ground lines, and perform multi-channel broadband communication. In order to achieve the above functions, various manufacturers have adopted different fiber optic cable structure designs, which organically combine the fiber optic cable with the ground wire and fully play their respective roles.

　　The optical fiber composite overhead ground wire (OPGW) cable adopts a stainless steel tube layer twisted structure. Fiber optic cables are inserted into sealed seamless steel pipes and filled with hydrate blocking compounds. A stainless steel tube containing optical fibers is twisted with aluminum clad steel wire to form a cable core, and then twisted with one or two layers of aluminum clad steel wire or aluminum alloy wire (aluminum wire) outside the cable core. OPGW optical cable has the characteristics of simple cable structure, high tensile strength, and special short-circuit current design, and is suitable for the renovation of new and existing power lines.

　　Process standard method:

　　1. The sag of the tight wire should be checked immediately after hanging the wire, and its allowable deviation should comply with the following regulations:

　　2. In general, the allowable deviation for 110kV transmission lines is ≤+5% and -2.5%; Allowable deviation for 220kV and above lines is ≤± 2.5%;

　　3. The allowable deviation of sag for large spans crossing navigable rivers is ≤± 1%, and its positive deviation is ≤ lm.

　　4. When crossing power lines, the clearance distance between the optical cable and the crossed conductor should comply with the regulations when the crossed conductor is in a large sag state.

　　5. When hanging the line, the over traction length for ten isolated gears, small tension sections, and large spans shall not exceed the design value.

　　6. The construction of optical cable installation should use tension pay off.

AfterSalesService :

• Overhead ground wire optical cable