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Submarine Cable FIMT

25ton DA

Submarine Cable Double Armored

GJLTTM 12-192 fibers 25-ton DA / GJZLTTM 12-192 fibers 25-ton DA

  • Unrepeatered
  • Water depth 3000 m
  • Compact design, only 28 mm in diameter
  • 12-192 optical fibers
  • With or without electroding conductor
  • Double layer steel wire reinforcement
  • Hydrogen protected
  • Outer protection polypropylene yarns
  • Unrepeatered
  • Water depth 3000 m
  • Compact design, only 28 mm in diameter
  • 12-192 optical fibers
  • With or without electroding conductor
  • Double layer steel wire reinforcement
  • Hydrogen protected
  • Outer protection polypropylene yarns
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The 25-ton DA is a double layer armored, loose tube cable for submarine installation where high protection is required.

This submarine cable is based on a hermetically sealed stainless tube. Inside the tube the fibers are free to move in a thixotropic water blocking compound. The steel tube is protected by a polyethylene sheath. Outside the sheath there are two layers of galvanized steel wires. The steel wires are flooded in bitumen.

The complete cable is wrapped with a layer of polypropylene yarns.

The steel wire reinforcement provides reliable mechanical protection, enabling installation and operation during rough conditions.

High packing density of the fibers is provided by the loose tube technique. This permits a small outer diameter and easy handling of the cable.

The fibers are colored for easy identification.

Submarine Cable Double Armored - Technical Details
  1. Primary coated fiber: Silica, acrylate
  2. Filling compound: Thixotropic compound
  3. Tube: Stainless steel
  4. Sheath: Polyethylene, black
  5. Armoring: Galvanized steel wires, double layer 14 x ø3.0 and 20 x ø3.0 mm
  6. Filling compound: Bitumen
  7. Wrapping: Plastic tape
  8. Wrapping: Polypropylene yarns

Technical Information

Product Color Yellow with black contrast yarns.
Temperature, Operation [°C] -30 to +60
Temperature, Storage [°C] -40 till +70
Temperature, Installation [°C] -15 till +40
Diameter Ø [mm] 28
Max. Water Depth [m] 3000
Bend Radius, No Load [mm] 500
Bend Radius With Tensile Load  [mm] 1500
Bend Radius Coiling [mm] 1500
Weight [kg/km] 2300
Weight in Seawater [kg/km] 1800
Tensile Force UTS [kN] 320
Tensile Force FBL [kN] 320
Tensile Force NTTS [kN] 250
Tensile Force NOTS [kN] 170
Tensile Force NTPS [kN] 120
Crush Resistance [N/100 mm] 20000
Impact Resistance [J] 300
Marking The submarine cable is marked with kilometer markers and factory joint markers.
Technical Notes Mechanical and environmental test in accordance with IEC 60794-1-21 and IEC 60794-1-22
Ordering Information
  • Fiber specification
  • Fiber count
  • With or without electroding conductor
  • Fiber color code

The cable is supplied in coil, on drum or in container.