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영어

There were a few fires related with using the electric thawing machine. This paper verified the truth that the reason of fires are the resistance heat of bellows stainless pipe through the reproduced experiment. The reproduced experiment was executed that the bellows stainless pipe with insulation was installed between steel pipes and sent an electric current through the ends of steel pipes then, the insulation was ignited after 53 seconds. In this reproduced experiment, we concluded that the thawing machine is not desirable at the place used the bellows stainless pipe and workers pay close attention in case of using the thawing machine.