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Omnisens presentation at CIGRE in Denmark

CTO Etienne Rochat presented the Symposium "Combining Distributed Temperature Sensing (DTS) and Dynamic Cable Rating (DCR) as an efficient means of managing submarine cable load" during the CIGRE conference in Denmark in June. DTS provides real time information of submarine cable temperature, as a function of the cable load and surrounding conditions. Longer than 100km cable are now instrumented using stimulated Brillouin based interrogators (Brillouin Optical Time Domain Analyzers, BOTDA) that are compatible with optical amplification. When combined with Real Time Thermal Rating (RTTR)/DCR, dynamic load management becomes possible, ensuring safe delivery of current peaks when necessary without risking any damage to the cable due to overload or local hot spots. The combination of DTS and RTTR/DCR also provides some evaluation of the Depth of Burial (DoB) associated with the potential risk of being snagged by anchoring and fishing activities….DTS systems are now defined by a set of parameters within an IEC standard….DTS with short spatial resolution, when combined with DCR, becomes a powerful tool for load management as well as for asset integrity
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