Locating defect in electric conductor covered by medium by applying voltage to cause heating and monitoring with infrared camera

摘要

A voltage is applied to the electrical conductor (4) to cause heating in the region of the defect (3). The heating can be detected through the medium covering the electrical conductor using a thermography device (14) such as an infrared camera. The voltage may be between 1000 and 10000 V. The electrical conductor may be arranged under plaster or within a walled-in surface. An independent claim is included for an apparatus for locating a detect in an electrical conductor.