Abstract: A method for detecting and locating a fault affecting an electrical cable includes the steps of (a) placing a first sensor and a second sensor along the cable, the second sensor being an acoustic sensor; (b) detecting the occurrence of the fault with the first sensor at a first time, and with the second sensor at a second time; (c) taking into account a propagation speed of an acoustic wave generated by the fault; (d) estimating a position of the fault depending on the first time and on the second time, on the basis of the propagation speed resulting from step (c); (e) determining a reference propagation speed depending on the position resulting from step (d) of the fault, and comparing said reference propagation speed with the propagation speed taken into account in step (c); and, (f) depending on the comparison, validating the position resulting from step (d) or reiterating steps (c) to (f) while adjusting, in step (c), the propagation speed taken into account.

Abstract: The invention is a method for detecting and locating a fault (2) affecting an electrical cable (10), comprising the following steps: a) placing a first sensor (11, 11?) and a second sensor (12), along the cable, the second sensor being an acoustic sensor; b) detecting the occurrence of the fault with the first sensor, at a first time (t1), and with the second sensor, at a second time (t2); c) taking into account a propagation speed (v1, vi) of an acoustic wave generated by the fault; d) estimating a position (x1,xi) of the fault (2) depending on the first time and on the second time, on the basis of the propagation speed resulting from step c); e) determining a reference propagation speed (vref(x1),vref(xi)) depending on the position (x1,xi) resulting from step d) of the fault (2), and comparing said reference speed with the propagation speed taken into account in step c); f) depending on the comparison, validating the position resulting from step d); or reiterating steps c) to f) while adjusting, in s