Which type of holiday detector operates using low-voltage power?

Low-voltage DC holiday detectors are specifically designed to operate at lower voltage levels, typically below 50 volts. They are used to identify discontinuities or "holidays" in protective coatings, such as those applied to metal surfaces to prevent corrosion.

The low-voltage operation offers several advantages: it enhances safety for users by reducing the risk of electrical shock, allows for the inspection of sensitive or delicate substrates without causing damage, and is suitable for environments where higher voltage equipment may be unsafe or impractical.

These types of detectors can effectively detect flaws without causing sparking or other electrical issues associated with higher voltage systems. This is particularly crucial for use in potentially explosive atmospheres. The design of low-voltage DC detectors enables inspectors to perform thorough inspections while adhering to safety regulations and industry standards.