SAm The Hidden Asset

23 Pages·2014·8.86 MB·English

Submarine Cables
the Hidden Asset
Alasdair Wilkie
Hibernia Networks
Hibernia Networks 2013.  Private & Confidential
Before I Start
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Agenda
• A Little bit about me
• The Submarine Cable Network
• History
• The position today
• The dangers
• The areas of concern and interest
• Cable Systems
• Legal Jurisdictions
• Cable & Amplifiers
• System Design
• System Processes
• Marine Repairs
• Ongoing Preventative Maintenance
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A little bit about me
Started with submarine cables in 1985, worked in the terminals on
UK-Belgium No 5.
Worked in a variety of companies ranging from manufacturers,
installers, consultancies through to developers and owners.
Been involved with the following, System Design, Installation and
Commissioning of systems on land and at sea, system maintenance
etc.
Have a keen interest in the history of cables
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History of Cables
• 1850 First cross channel telegraph cable
• 1858 First transatlantic telegraph cable (failed)
• 1865 First working transatlantic cable
• 1939 First polyethylene coaxial cable
• 1976 Highest capacity coaxial cable system in the world installed (ANZCAN)
• 1980 First optical repeater installed (Loch Fylde, Scotland, BT experimental
system)
• 1986 First international optical system (UK - Belgium 5)
• 1997 First optically amplified system installed
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Evolution in the Atlantic 1850 - 2010
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Telecommunications Cables in Service 2014
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The Dangers to Cables
(1)
• Fishing
− Bottom Fishing
• Trawling
– Beam
– Otter (doors)
• Scallop Dredging
• Clam Dredging
− Stow nets
− Longlines
− Bottom Gillnets
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The Dangers to Cables
(2)
• Ships
− Anchors
− Piracy
• Natural Phenomena
− Earthquakes
− Turbidity Currents
• An Increasingly Crowded Seabed
− Oil & Gas Exploration
− Offshore Energy
− Fish Farms
− Deep Sea Mining
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Areas of Concern and Interest
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5
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