Description
The 275 HP is a high voltage proximity detector. It has eight voltage detection settings from 240Vac to 275kVac. The 275 HP consists of an internal pickup sensor plate, a sensitivity selector, and both visual and audio annunciators. Physical contact with electrical conductors is not necessary when testing for live lines since the 275 HP has a proximity sensor. It senses the radiated field which surrounds live conductors. Radiated field strength increases with voltage and decreases quickly with distance or earth shielding. (See “Limitations of use” paragraph in the instruction manual). Detecting distance of a 250Vac single live wire is approximately 10cm. With a
bunched neutral and earth cable, as in a flexible cable, the distance is reduced to 5cm.





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