Chapter Twenty One - Definitions

Question 1

What is high-voltage constant current DC holiday detector?

Answer 1

This instrument is used to detect coding holidays in dielectric coatings. Once the voltage is set, pass the electrode over the surface. A spark will arc through the air gap, causing the detector to emit an audible sound.

Question 2

What is high voltage Pulse-type DC holiday detector?

Answer 2

This instrument is ideal for use in moist conditions. pass the electrode over the surface a spark will arc through the air gap on any holidays, voids, or discontinuities, causing the detector to emit an audible sound.

Question 3

What is low-voltage holiday detector?

Answer 3

This instrument is a sensitive, low-voltage wet sponge electronic device powered by battery with output voltages ranging from 5 to 120 V DC.

Question 4

What is a high voltage AC holiday detector?

Answer 4

This uses 110 V or 220 V power supply. The AC detector is based on the principle of the Tesla coil and does not use a ground wire the probe emits a blue Corona, which is attracted to any ground.