LIQUID LEAKAGE DETECTION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a liquid leakage detection system capable of reliably detecting ground fault caused by leakage of an electrolyte from a storage battery with a simple configuration in a battery pack using a ground system.SOLUTION: When the side of a negative electrode terminal 53 of a battery pack 5 is grounded to the ground, a housing 6 is grounded to the ground via a resistor 9a having a prescribed electric resistance value, and when an earth leakage circuit is formed due to leakage of an electrolyte 51i from a storage battery 51 constituting the battery pack 5 to the outside, ground fault is detected on the basis of a current flowing though the resistor 9a due to electric leakage.