Single Layer Tube (SST)

Armored Fiber Optic Cable

We design and manufacture Single Layer Tubes to protect the integrated optical fibers from external influences such as mechanical stress, Hydrogen, and various environmental effects. Producing quality products drives our research and development. Through innovation in R&D, we have built an armored fiber optic cable that withstands the most demanding environments, protecting the integrity of the optical fiber. 

We can now offer single-layer fiber optic cables that extend to 50 km. This is an achievement in production that can directly benefit you. It reduces connection on long-haul installations, especially in testing environments, such as undersea and direct-buried installations.

  • 32-Up to 114 fibers Up to 192 fibers
  • 21-Temeprature Sensing Sensing Ready
  • 17-Direct Installation Semi-Finished


Product abbreviationSST
Cable usageData Transm. & Sensing
Outer diameter1.1 mm up to 7.0 mm
Wall thickness0.125 mm up to 0.300 mm
Approx. Cable weight3.5 kg up to 65 kg per km
Max. excess fiber lengthup to 1 % (highest accuracy)
Operational temperature range-40°C up to +85°C
Maximum fiber count144 (250µm), 192 (200µm)
Maximum continuous lengthUp to 50 km
Filling compoundH2 absorbing optionally
Steel materialsWide range possible

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

Armored Fiber Optic Cable


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