FIBER IN METAL TUBES
Triple Stranded Tube
- O&G Optimized Design
- Full Metallic Construction
- EFL Maintaining
TST
TST stands for Triple Stranded Tube and is especially designed for vertical installation purposes in harsh environments. This cable comes up with a design, where the three inner tubes are stranded along with a smooth pitch, allowing the fibers to hold their place while gravity wants to elongate or break them during hanging applications. A final protective layer made of a highly anti-corrosive steel grade allows using this product even in aggressive environments. Due to high-precision in the manufacturing processes, this cable design can be combined with additional layers of stranding wires or compact metal sheets for even more tensile strength or hydrostatic pressure ratings.

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Downhole optimised
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Designed for O&G
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pressure resistant ​
Specifications
Product abbreviation | TST |
Cable usage | Data Transm. & Sensing |
Outer diameter | 5.75 mm or 6.35 mm (1/4”) |
Dimension of one inner tube | 2.35 mm x 0.20 mm |
Cost effective steel grade mixing | Wide range possible |
Outer tube material | High anti-corrosive mat. |
Approx. Cable weight | 76 kg or 123 kg per km |
Hydrostatical pressure rating | Up to 3 500 bar (calc.) |
Maximum continuous length | Up to 15 km |
Operational temperature range | -60°C up to +800°C |
Excess Fiber Length (EFL) | Exceeds 0.6 % |
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


Thomas Kozlowski
Fiber Optics Solution Specialist.
“Challenge me with your project”