Self-supporting downhole cable | NBG Fiber Optics



Self-Supporting Downhole Cable


This version of a Triple Stranded Construction is especially designed for vertical installation purposes in harsh environments, where a high tensile strength is needed. This cable comes up with a design, where the three inner elements are stranded along with a smooth pitch, allowing the fibers inside the FIMT to hold their place while gravity wants to elongate or break them during hanging applications. An additional layer of stranding wires made of a highly anti-corrosive steel grade allows using this product in flexible applications even in aggressive environments. Due to high-precision in the manufacturing processes, this cable design can be combined with additional layers of compact metal sheets for even more tensile strength or hydrostatic pressure ratings.

  • 05-Downstream Anti corrosive
  • 24-High Strenght High crush resistance
  • 03-Upstream Designed for downhole


Product abbreviation SDC
Cable usage Data Transm. & Sensing
Total outer diameter 8.50 mm
Approx. Cable weight 317 kg per km
Excess Fiber Length (EFL) Exceeds 0.6 %
Operational temperature range -60°C up to +800°C
Maximum continuous length Up to 15 km
Ultra-High tensile strength > 42 kN
Ultra-High crush resistance Tests acc. latest standards
Cable material High anti-corrosive mat.
High corrosive resistance Made of Alloy material
Perfect usage for Vertical installation

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


Frank Hieden

Fiber Optics Solution Specialist.
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