Subsea Transmission Link Sicily to Calabria, Italy To monitor and protect the overland sections of this important link, AP S e ns ing’ s fiber-optic based DTS (Distributed Temperature Sensing) solution was selected. The extra high voltage power links run between power stations in Sicily and Calabria, crossing the Messina straits. The total cable route is approximately 44 km long, of which 6 kilometers are over land – these stretches are monitored by AP Sensing – and 38 kilometers are subsea. Both circuits are crossing different regions (e.g covered trench, buried sections, ocean, tunnel) between the power stations. The complex land installation included a 300m vertical shaft and a 3km tunnel, sloped at 12%. Two 8 km Linear Power Series DTS devices, each with 2 channels and 44 relays, were

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