FIELD: instruments. SUBSTANCE: method involves driving a source of directed electromagnetic sounding pulses over cable along its run, detection of pulses, which are induced in current-conducting circuit of cable, detection of pulse, which is reflected from cable break point, by means of receiver, and detection of cable break point by means of position of source of directed electromagnetic sounding pulses when sounding pulse and pulse reflected from cable break point match. EFFECT: increased precision. 1 dwg
