Subsea Trenching ROV
Offshore Electrical and Telecommunication Cable Installation Part 1
By Ir . Roslian Efendy bin Syafrial Engineering Manager WS Offshore Pte Ltd , Singapore
SPECIAL REPORT
QT1000 Subsea Trencher by SMD Subsea Technology built for KT Submarine , ( image from https :// www . youtube . com / watch ? v = ZzJVD7glMUQ )
1.0 INTRODUCTION
In recent years , we have seen a lot of major offshore field development especially in oil and gas , and wind farm , etc ., making subsea cables and pipelines a very important communication means through the maritime spectrum .
Looking back at history , we can see that submarine cables have played a huge role in international data transmission since the 1850s . It was all started by John Watkins Brett ’ s English
Channel Submarine Telegraph Company which laid the first line across the English Channel after being granted a concession from the French Government [ 4 ]. British submarine cable systems expanded to the Mediterranean and the Indian Ocean during the 1860s to 1870s . Since then , the cable system has spread across most of the world .
During those early years , cables were laid on the seabed with the only protection provided by the outer layer of the cables themselves . It was
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