Submarine power-optical cables are used in the offshore
industry in the following applications:
• Power distribution and two-way communication between
production units;
• Single/Dual Subsea Electrical Submersible Pumping
Systems;
• Vertical Annular Separation and Pumping System
(VASPS);
• Subsea Multiphase Pumping System (M.V. Power feeding),
operational control and data transfer of subsea multiphase
pumping systems.
Designed and tested to withstand harsh environmental
conditions in water depths as deep as 2,000 meters in
both static and dynamic applications, these submarine
cables, which require a high level of structural resistance
comprise the following functions:
• Low or medium voltage power cores;
• Optical core.
Power cores are insulated with SEVEREX high-performance
compound, applied on the conductors by means of triple
extrusion and continuous dry-curing process.
The optical cable core features high crushing resistance.
The type and number of fibres can meet the most demanding
customer’s system requirements.
The submarine cable components are assembled and
sheathed with a polymeric extruded layer and then
armoured with a counter-helix double layer high strength
flat steel wire armour, to virtually eliminate any torsional
tendency due to installation/operation stresses, and
improve the cable hydrodynamic stability.
The outer jacket is designed to provide excellent performance
in terms of abrasion and crushing, besides UV resistance.
Cable description
Example:
3×240 mm2 12/20 kV + 12 SM optical fibers – WATER
DEPTH 2,000 m