RUS

Overhead optical cable with central optical loose tube and suspended strength element KC-OKTO

The KC-OKT cable is designed for hanging on supports of overhead lines, public lighting posts and between buildings.
Structure
  1. Suspended strength element (galvanized steel wire rope);
  2. Dividing jumper;
  3. Peripheral strength element (FRP fiberglass rod);
  4. 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.
  5. Optical loose tube (PBT – polybutylene terephthalate);
  6. Optical fiber;
  7. Intramodule compound (thixotropic gel).
01
Suspended strength element (galvanized steel wire rope)
02
Dividing jumper
03
Peripheral strength element (FRP fiberglass rod)
04
Outer light-stabilized polyethylene sheath
05
Optical loose tube (PBT – polybutylene terephthalate)
06
Optical fiber
07
Intramodule compound (thixotropic gel)
01
02
03
04
05
06
07
  1. Suspended strength element (galvanized steel wire rope)
  2. Dividing jumper
  3. Peripheral strength element (FRP fiberglass rod)
  4. Outer light-stabilized polyethylene sheath
  5. Optical loose tube (PBT – polybutylene terephthalate)
  6. Optical fiber
  7. Intramodule compound (thixotropic gel)

Physico-mechanical and operational characteristics of cable

Parameters Value 
Number of optical fibers in cable 2 to 12
2 to 16
2 to 24
Maximum cross-section dimensions, mm 5,0х11,1 7,1х15,5 7,8х17,1
Average cable weight, kg/km 48,9 111,5 145
Static tensile load, kN 0,8 2,5 7,0
Dynamic tensile load, kN 1,2 5,0 8,0
Short-term crushing load, kN/cm 0,25
0,25
0,25
Minimum bending radius, mm 100
145
150
Operating temperature, °С -60 to +60
Storage and transportation temperature, °С -50 to +60
Installation temperature, °С -10 to +50

* According to Customer’s requirements color of fibers can be different (in cables containing more than 12 fibers the colors of the fibers are labeled with rings).

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