Ducting CT GSW

Central tube (CT) galvanized steel wires (GSW) design for additional protection applied in ducts and utility tunnels


Optical fiber


PBT loose tube filled with water-blocking gel


Water-blocking gel


Armor of galvanized steel wires


Polymer jacket

Excellent rodent resistance

Reduced weight and size

Efficient design

100% waterproof

Resistance to crushing load from 0.5 kN/cm

Up to 24 fibers

Allowable tensile strength up to 2.7 kN

Max rated design tension 2.7 kN
Crush — 0.5 kN/cm
Fiber count up to 16 up to 24
Cable diameter, mm 7.1 7.3
Cable weight, kg/km 80.2 85.6
Min bending radius, mm 106.5 109.5
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Operation temperature -50°С…+70°С
Installation temperature -30°С…+50°С
Transportation and storage temperature -50°С…+70°С
Minimum bending radius 15x cable diameter
Life time 25 years