Problem to be solved: to provide a simulated experiential device for a gas cutoff device to simulate the phenomenon of a gas leak in various facilities having a water sealing structure, and to enable understanding and learning of the behavior of the equipment and the method of coping with the gas leakage.A simulation experience device 1 of a gas cutoff apparatus for interrupting gas by a water sealed structure;Closed channel 2 with simulated gasIt is provided in the middle or end of closed channelA liquid reservoir 3 capable of storing a sealing liquid for sealing a simulated gas andGas leakage reproducing means 4 for reproducing gas leakage in a gas circuit breakerEquipped withThe closed channel and the liquid reservoir are made of a translucent material.Diagram
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