Loose Tube Cable

On the world wide market are many different fibre optic cables for different applications available. At this point we want to show you some clue or criteria for the right selection of a fibre optic cable. Fibre optic cables are named after a "cable key" according to DIN VDE 0888.




From this cable type are many different types available. Here are the essential properties of a loose tube cable:

  • Universal Cable for In- and Outdoor use ( e.g. U-DQ(ZN)BH 12 G50/125 ):
    Universal cable are cable types with a heavy flammable, self extinguish and low smoke sheath (FRNC or LSOH). For indoor use perfect, for direct use in soil only in connection with empty tubes.
  • Outdoor Cable ( e.g. A-DQ(ZN)B2Y 12 G50/125):
    They own an PE sheath and are weather-resistant and UV-stable. For this reason are these type of cables for direct use in soil suitable or for the use with emtpy tubes and exposed locations.

Loose tube cable differs in two different types:

  • Central Loose tube cable ( e.g. A-DQ(ZN)2Y 12 G50/125 ):
    Cable with central loose tube, low cost cable, up to 24 fibres. These cables permits at the installation small bending radius but have a lower tensile load. They are not suitable for blow fibre systems.
  • Stranded Loose tube cable ( e.g. A-DF(ZN)2Y 3x4 E9/125 ):
    Single fibre with filled loose tubes are stranded layers around a central supporting element. A cable with such a structure have a higher tensile load and are suitable for blown fibre systems.

  • With rodent protection ( e.g. A-DQ(ZN)B2Y 6x4 E9/125 ):
    The form of the rodent protection for fibre optic cables can be non metallic (glas rovings, aramid or polyamide coat) or metallic (corrugated or other metallic reinforcement). The selection of the suitable rodent protection depends on the application.
  • Without rodent protection ( e.g. A-DF(ZN)2Y 8x12 E9/125 ):
    Cable without rodent protection are suitable for indoor use or in closed pipe systems.