| 摘要 |
PROBLEM TO BE SOLVED: To provide an insulation resistance inspection method of a battery pack capable of shortening the inspection time of insulation resistance inspection by avoiding the influence of noise variation.SOLUTION: In an insulation resistance inspection method of a battery pack having a battery pack 1, a resistor 4 is connected between the battery pack 1 and a pack body 2 housing the battery pack 1, waveform data is acquired by measuring the voltage difference between the resistors 4 continuously when inspecting the insulation resistance based on the voltage difference between the resistors 4, and determines that there is no problem about the insulation performance between the battery pack 1 and the pack body 2, when the average value of data at two points, i.e., the lower end and upper end of waveform of an internal noise appearing in the waveform data falls within a standard value continuously at a plurality of points. |
