Review of Cabling Techniques and Environmental Effects Applicable
Review of Cabling Techniques and Environmental Effects Applicable
Review of Cabling Techniques and Environmental Effects Applicable
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
3.8.2 CABLE BURIAL PLOUGHS<br />
Cable types <strong>and</strong> installation techniques<br />
This section <strong>of</strong> the report reviews the various types <strong>of</strong> cable burial plough<br />
which are available for the burial <strong>of</strong> subsea cables. The mode <strong>of</strong> operation <strong>of</strong><br />
each plough is described together with example types <strong>of</strong> each plough including<br />
details <strong>of</strong> manufacturers <strong>and</strong> owners.<br />
The different types <strong>of</strong> cable burial ploughs which are reviewed are as follows:<br />
●<br />
●<br />
●<br />
●<br />
Conventional Narrow Share Cable Ploughs;<br />
Advanced Cable Ploughs (including Modular Cable Ploughs);<br />
Rock Ripping Ploughs; <strong>and</strong><br />
Vibrating Share Ploughs.<br />
The general principle <strong>of</strong> operation <strong>of</strong> a cable plough is illustrated in Figure<br />
3.10.<br />
Figure 3.10: Illustration <strong>of</strong> Cable Burial through a Subsea Cable<br />
Plough<br />
It is estimated there are now approximately 30 conventional narrow share <strong>and</strong><br />
approximately 25 advanced cable ploughs (advanced, rock ripping <strong>and</strong> vibrating<br />
share) currently in service around the world.<br />
Conventional narrow share cable ploughs<br />
This type <strong>of</strong> cable burial plough is a passive tool towed from a host vessel. The<br />
plough share cuts a wedge <strong>of</strong> soil which is then lifted by the action <strong>of</strong> the plough<br />
37