Ducting

Ducting MT CST DJ

Multi-tube (MT) corrugated steel tape (CST) double jacket (DJ) design for ducts and utility tunnels

1

Central strength member: FRP

2

Optical fiber

3

PBT loose tube filled with water-blocking gel

4

Inter-tube water-blocking gel

5

Water-swellable yarns

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Inner jacket

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Corrugated steel tape armor

8

Polymer jacket

Excellent rodent resistance

Proven reliable design

Improved reliability due to inner jacketing

Allowable tensile strength up to 2.7 kN

Resistance to crushing load from 0.3 kN/cm

Max rated design tension 2.7 kN
Crush — 0.3 kN/cm
Fiber count up to 48 (6x8) up to 72 (6x12) up to 96 (6x16) up to 144 (6x24)
Cable diameter, mm 12.4 13.0 13.7 14.6
Cable weight, kg/km 157.9 173.8 187.3 210.5
Min bending radius, mm 186 195 205.5 219
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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