Thick Wall Alu Layered (ATT)

OPGW: Thriving in Harsh Environments

OPGW is often subject to harsh climate conditions such as wind, ice, and rain. The 3 mm outer aluminum casting of the ATT makes it suitable for deployments in the harshest environments. A stainless-steel tube protects the optical fibers from mechanical stress. The steel itself is protected by an aluminum layer that prevents galvanic corrosion within the cable, a common cause for OPGW failure.  

The ATT can be produced with as many as 144 fibers at 250μm or 192 fibers at 200μm. The combination of its high optical fiber count, performance, and durability makes the cable one of the most financially sound solutions on the market. Our ability to offer custom solutions further enhance the potential of the ATT to thrive in any situation. 

OPGW Thick Alu Layered
  • 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

Optical fibers

Metal tube

Aluminum tube

OPGW Thick Alu Layered


Thomas Kozlowski

Fiber Optics Solution Specialist.
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