Insulation resistance is the most basic insulation index of electrical equipment and electrical lines.
Insulation resistance is the most basic insulation index for electrical equipment and electrical lines. For the handover test of low-voltage electrical installations, the insulation resistance of motors, power distribution equipment and distribution lines at room temperature should not be lower than 0.5MΩ (for equipment and lines in operation, the insulation resistance should not be lower than 1MΩ/kV).