Disclosed are a bus duct multi-point temperature monitoring system and a temperature monitoring method thereof. The bus duct multi-point temperature monitoring system according to the present invention and its temperature monitoring method can easily implement real-time temperature monitoring of the installed bus duct at low cost, and perform accident prevention and inspection by accurately and quickly grasping the temperature inside the connection part in real time. It can be done, and replacement can be easily performed in case of failure or damage of the temperature sensor.
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