LOCATION FINDING OF OFFRSHORE SUBMARINE CABLES.

The theoretical basis for the search principle of submarine cables by magnetic techniques is explained. The magnetic search technique using the proton magnetometer is introduced as a highly accurate search method applicable to the detection of cable locations and fault points. The development of the search system hardware and the procedure of search operation are described. The successful results of the application of finding unarmored coaxial cables buried to a depth of about 70 - 90 cm into the seabed at a sea depth of about 70 m and armored cables laid at some 50 m sea depth are discussed with actual data.