-3-
The trigger level is fixed (CMOS logical level change).
The "Test" inserts a voltage on the sensor plate, just
like if the sensor would pick up a voltage. The Non-
contact high voltage detector allows identification of AC
voltages. The enclosure is made out of industrial grade
polyurethane. The enclosure can be attached to a hot
stick. The small cylinder part of the Non-contact high
voltage detector fits into most hot stick adapter.
3. Low Voltage Testing
The Non-contact high voltage detector works by
proximity. Physical contact with electrical conductors
is not necessary when testing for live lines. Its
sensor senses the radiated field which surrounds live
conductors. It is recommended not to touch high voltage
wires with the Non-contact high voltage detector.
Radiated field strength increases with voltage and
decreases quickly with distance or earth shielding. The
radiated field from a cable of closely bunched conductors
supplied by three phase power, tends to cancel (See
"
Limitations of the Non-contact high voltage
detector
" on page 8).
Detecting distance of a 220Vac single live wire is about
10cm.
