Tight-Buffered Riser

Applied inside buildings (including vertical runs), in trays, channels, on outer sides of buildings, as well as in duct, in tubes and blocks. Suitable for blowing-in into protecting polyethylene tubes.

Applied in ducts, trays, blocks, tunnels, and collecting channels in protecting tubes.

Also applied for aerial installation power lines, lamp posts, between buildings and constructions. Suitable for aerial installation on transmission equipment and power facilities.


Tight-Buffered Riser

  • 5
    Match marks (jacket opening marking)
  • 4
    Halogen free flame-retardant jacket
  • 3
    Fiberglass rod
  • 2
  • 1
    Optic fiber


Perfect solution for high buildings: the fiber is buffered up to floor box or up to the subscriber’s flat

Operation temperature range down to -30C

Easy access to the fiber at any place of the cable



All-dielectric construction

Up to 48 fibers

Resistance to crushing loads – 80-200 N/cm

Allowable tensile strength up to 400 N


Optical Fiber Specifications
Optical Fiber Color Identification

Min crush — 46 lb/in
Max crush — 114 lb/in
Tensile strength — 90 lb

Fiber countUp to 4Up to 12Up to 24Up to 36Up to 48
Cable diameter, in0.2560.3350.4130.5310.531
Cable weight, lb/ft0.0280.0430.0610.0990.108
Min bending radius, in2.5593.3464.1345.3155.315

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

Operation parameters
Operation temperature range*-30°С…+50°С
Installation temperature range-10°С…+50°С
Transportation and storage temperature range-50°С…+50°С
Min bending radius10xcable diameter
Life time25 years
Warranty lifetimeas specified in the supply agreement, min 2 years

* Operation temperature range can be increased on request.


Local cables can be produced in versions ng(A)-HF and ng(А)-HFLTx.

ng(A)-HF — cable jacket is made of a polymer material, flame retardant in a group laying, with low smoke emission, halogen-free (Class PRGP1).

ng(A)-HFLTx — the cable jacket is made of a polymer material, flame retardant in a group laying with low toxicity of combustion products.