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>> In this paper, in order to prevent electric shock of high voltage system of HFCV after crash test,insulation performance measurement methods were studied. Under conditions of in-use, insulation performance tests can be divided into measurement method using the vehicle’'s own RESS as DC voltage source and measurement method using DC voltage from off-vehicle sources.However, these tests can not be applied after a post-crash because parts of high voltage system cover should beremoved, and insulation performance can be influenced during these tests.Therefore, we proposed post-crash insulation performance test methods for preventing electric shock through problem analysis of previous post-crash insulation performance tests. Also, test equipment which can measure voltage absence and total energy was developed. We verified performance of the equipment through experiments with vehicle test. Key words : Isolation Resistance(), Electrical Shock(), Voltage Absence(), Energy(),Evaluation Equipment(), Evaluation Method()

Study on the Evaluation Method of Electrical Isolation Property for Hydrogen Fuel Cell Vehicle in Post Crash