InDuct Light

Applied in ducts, trays, blocks, tunnels, collecting channels, with a risk of rodents’ attacks.

Applied for direct buried installation if the mechanical impact does not exceed the specified limits.

Also applied for installation on bridges.


InDuct Light

(Multi-Tube Single Armor Single Jacket Cable)

  • 7
    Polymer jacket
  • 6
    Corrugated steel tape armor
  • 5
    Water blocking tape
  • 4
    Inter-tube water-swellable gel
  • 3
    PBT loose tube filled with water-swellable gel
  • 2
    Optic fiber
  • 1
    Central strength member: FRP


Armor is a perfect protection from rodents.

Reduced weight and size. Suitable for blowing-in in tubes.

Efficient design.

The most popular design.

Resistance to crushing loads from 0.3 kN/cm.

Allowable tensile strength up to 2.7 kN.

Increased tightness due to application of water-blocking tape.


Optical Fiber Specifications
Optical Fiber Color Identification

Crush — from 171 lb/in
Tensile strength — 607 lb

Fiber countup to 48up to 72up to 96up to 144
Cable diameter, in0.4530.4720.5080.543
Cable weight, lb/ft0.0850.0890.1020.115
Min bending radius, in6.7917.0877.6188.150

At Customer’s request Incab can provide specifications for any range of fiber optic cable.

Operation parameters
Operation temperature range*-50°С…+70°С
Installation temperature range-30°С…+50°С
Transportation and storage temperature range-60°С…+70°С
Min bending radius15x cable diameter
Service life25 лет
Life timeas specified in the supply agreement,min 2 years

* Operation temperature range can be increased on request.


All cables of this group can be produced in versions H and (A)-HF.

H — cable jacket is made of a polymer material not propagating fire in a single laying.

(A)-HF — cable jacket is made of a polymer material, flame retardant in a group laying, with low smoke emission, halogen-free.