The usual method is to move a source of monitoring directed electromagnetic impulses along the cable run. The sympathetic impulses induced in the conducting material of the cable are registered and the damage point is determined reference to position of the source of monitoring directed electromagnetic impulses.

In the proposed method, the impulse receiver accepts the signal reflected from the damaged section, rather than induced impulse. The point of damage is determined reference to position of the monitoring impulse source, when the marks of the monitoring impulse and the signal reflected from the damage point coincide on the receiver display.

Yekaterinburg 620034, Kolmagorova street 66, the Urals State Academy of Transport Communications, Communication Department, for Veligzhanin N.K.