Principle

Dielectric Strength, also known as Break Down Voltage, testing is used to measure the electrical strength of a material as an insulator. Dielectric strength is defined as the maximum voltage required to produce a dielectric breakdown through the material and is expressed as Volts per unit thickness. A higher dielectric strength represents a better quality of insulator.

Capabilities

AC and DC

• ASTM D149 (AC voltage)
• ASTM D3755 (DC voltage)
• 4" square sample or larger (thicker samples are tested in oil bath to avoid corona arcing)
• Testing temperatures (lab ambient)

Equipment