| 摘要 |
An arrangement for detection of leakage in an insulator of an electrical line, especially a high-tension overhead line. The arrangement contains two parallel oriented ultrasound microphones 1, 2, connected in part to a total power meter 3 with a first indicator element 4 and in part to a phase interferometer 5 with a second indicator element 6, wherein a telescopic sight 7 is directed parallel to said ultrasound microphones. In a preferred embodiment, the telescopic sight is provided with a mirroring element 8 for said first and second indicator elements, wherein said second indicator element is arranged to be mirrored at a centre point of the telescopic sight, while said first indicator element is arranged to be mirrored along a periphery of the telescopic sight. <IMAGE> |
