Fault location device and method

摘要: Device (32) for determining location of a fault in an underground cable causing earth leakage path from internal conductor to at the fault, such that when signal is applied conductor, flows between and fault. A multi-frequency cable, this having least two frequency components. Probe means (24a, 24b) positionable receive signal. processor (50) rectifies first component signal, corresponding one said multiplies rectified with second another result multiplication,indicates direction device