OPGW-DABB 24E9 (AA/ACS 99/57)
Central-Element: 5 mm filled Aluminum Tube 1st Layer: 8 x 3 mm Aluminum Clad Steel Wire (Left Hand Lay) 2nd Layer: 14 x 3 mm Aluminum Alloy Wire (Right Hand Lay)
Double Layer Armoring A double layer of armoring wires is stranded around an aluminum central buffer tube. The specific wire materials are given in the enclosed cross section drawing. This design provides excellent lightning protection under mechanical load and prevents the fiber from thermal stress under fault current conditions. Before stranding the wires are pre-formed. This allows the wires to remain in position, even when the cable is cut. Thus simple cable termination and field operations are ensured.