3. Submarine cables

It is first necessary to separate this type of cable into two families:

• cables laid on the bottom;

• buried cables, i.e. cables buried on the seabed.

To locate the fault, we proceed systematically in stages, respecting the logical order of operations.

• Remote fault location

  This search is carried out from one end of the cable, using an echometric method (cf. ).

• Locating the cable route at the presumed fault location

  Using an electromagnetic method (as described in paragraph