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Q: What are the main factors to consider during a submarine cable installation and are there any differences in the installation practices of a DC and AC submarine cable?

Eddy Ebruke
United Kingdom

A: The main factors to consider during submarine cable installation are length, depth, temperature, bottom conditions, bottom profile, burial requirements, protection requirements, crossings, restricted areas such as marine sanctuaries or anchorages, and landing sites.  Although there are different electrical parameters and design requirements between ac and dc cables, there is no appreciable difference in installation technique. 

Michael Bahrman
HVDC Business Development
ABB

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