RUS

Optical cable with corrugated steel tape armor KC-OKL

The KC-OKL cable is intended for laying in cable ducts, pipes, blocks, collectors, bridges and shafts, without bending loads, when there is a danger of cable damage by rodents, in areas with the possibility of flooding for a long time, into the soil of 1-3 categories, between buildings and structures.

In case of indoor installation of the cable, with an outer sheath made of self-extinguishing PE or PVC compound, “nf” is added to the cable marking.

Structure
  1. Optical fiber;
  2. Intramodule compound (thixotropic gel);
  3. Optical loose tube (PBT – polybutylene terephthalate);
  4. Central strength element (FRP fiberglass rod);
  5. Corrugated steel-polymer tape;
  6. Outer light-stabilized polyethylene sheath. In the “nf” version the outer sheath is made of a polymer that does not propagate burning when laid single.

    For cables in the “nf” version, which are flame-retardant when installed in bunches, the category of flame retardation is indicated in brackets: nf(A), nf(B), nf(C), nf(D).

    Types of the sheath according to fire hazard indicators are defined by the following indices in the identification markings:
    LS (Low Smoke) – reduced smoke emission;
    FR (Fire Resistant) – fire resistance;
    ZH (Zero Halogenic) – no halogen emission during combustion;
    HF – no emission of corrosive gaseous products during combustion and smoldering;
    LT – low toxicity of combustion products.

  7. Intermodule compound (gel);
  8. Core-filler.
01
Optical fiber
02
Intramodule compound (thixotropic gel)
03
Optical loose tube (PBT – polybutylene terephthalate)
04
Central strength element (FRP fiberglass rod)
05
Corrugated steel-polymer tape
06
Outer light-stabilized polyethylene sheath
07
Intermodule compound (gel)
08
Core-filler
01
02
03
04
05
06
07
08
  1. Optical fiber
  2. Intramodule compound (thixotropic gel)
  3. Optical loose tube (PBT – polybutylene terephthalate)
  4. Central strength element (FRP fiberglass rod)
  5. Corrugated steel-polymer tape
  6. Outer light-stabilized polyethylene sheath
  7. Intermodule compound (gel)
  8. Core-filler

Physico-mechanical and operational characteristics of cable

Parameters Value
Number of optical fibers in cable 2 to 144
Number of lay elements of the core, pcs 5 to 12
Nominal outer diameter, mm 10.8 and more
Average cable weight, kg/km
115.4 and more
Static tensile load, kN 2.5 to 2.7
Dynamic tensile load, kN 3.1 to 6.0
Short-term crushing load, kN/cm 0,4
Minimum bending radius, mm
20 cable diameters
Operating temperature, °С -40 to +60
Storage and transportation temperature, °С -50 to +60
Installation temperature, °С -10 to +50

*According to Customer’s requirements the color sequence of loose tubes and fibers can be different.

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