Thick wall alu layered FIMT | NBG Fiber Optics



Thick Wall Alu Layered


Fiber in Metal Tubes which are covered with a thick wall aluminum layer are mainly used for OPGW (Optical Ground Wire) applications but also to provide a higher electrical performance as a complete element of a rope. The aluminum layer, as well as all other components included in this product are produced according to the highest quality standards in the industry. The metal tube itself and also the outer aluminum layer protects the integrated optical fibers against mechanical stress, hydrogen and other environmental influence in order to provide maximum optical lifetime for their application. All dimensions of the product can be adapted to meet the requirements and needs to offer great performances in the field.

  • 14-Energy Industry OPGW optimised
  • 21-Temeprature Sensing sensing ready
  • 17-Direct Installation semi-Finished


Product abbreviation ATT
Cable usage Data Transmission
Outer diameter up to 8.5 mm
Aluminum wall thickness 0.95 mm up to 3.0 mm
Aluminum weight up to 140 kg per km
Operational temperature range -40°C up to +80°C
Maximum fiber count 144 (250µm), 192 (200µm)
Maximum continuous length Up to 15 km
Filling compound H2 absorbing optionally
High electrical performance Acc. latest datasheet
Perfect usage for OPGW, OPPC, special cables

All values, product specifications and other given data are subject to change without notice to improve reliability, function, design or otherwise. Information contained in this data sheet are up-to-date as at the date of issue. As NBG cannot control or anticipate the conditions under which this product may be used, each user should review the information in specific context of the planned use. To the maximum extent permitted by law, NBG will not be responsible for damages of any nature resulting from the use or reliance upon the information contained in this data sheet.

Product overview created by Patrick Weissinger – 21.03.2019


Richard Groffie

Fiber Optics Solution Specialis
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