Most high voltage testers operate by generating a specified test voltage, which is then applied between the device under test&rsquo;s conductive elements (typically between its insulation and grounding points). The tester monitors factors like leakage current, breakdown voltage, and insulation resistance to assess the device's condition DEMIKS.<br style="box-sizing: border-box; color: #555555; font-family: Lato, 'Helvetica Neue', Arial, sans-serif; font-size: 18px; background-color: #f2f2f2;" /><br style="box-sizing: border-box; color: #555555; font-family: Lato, 'Helvetica Neue', Arial, sans-serif; font-size: 18px; background-color: #f2f2f2;" />Testers may employ either alternating current (AC) or direct current (DC), depending on the standard and type of insulation to be verified. The results determine if the equipment passes safety and performance standards.