Direct Buried

Direct Buried CT CST Light

Central tube (CT) corrugated steel tape (CST) design for direct burial

1

Optical fiber

2

Gel-filled loose tube

3

Water-blocking gel

4

Corrugated steel tape armor

5

Jacket

6

Steel wires

Up to 24 fibers

Max rated design tension up to 2.7 kN

Crush - 0.5 kN/cm

Cost-effective design

Excellent rodent resistance

Reduced weight and size

Maximum rated design tension 2.7 kN
Crush — 0.5 kN/cm
Fiber count up to 12 up to 16 up to 24
Cable diameter, mm 7.3 7.5 7.8
Cable weight, kg/km 70.7 72.7 75.9
Min bending radius, mm 109.5 112.5 117.0
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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