Insulation resistance tester (commonly known as "megohmmeter" or "shake table") is an indispensable tool in electrical safety testing. Unlike the "loop resistance tester" (which measures micro-ohm level low resistance) you just asked about, it is mainly used to measure extremely high resistance values (megohm MΩ or gigohm GΩ levels), with the purpose of checking whether the insulation performance of electrical equipment, cables, or lines is good.



The following is a detailed introduction to the insulation resistance tester, helping you fully understand its principles, applications, and operating specifications.