| 摘要 |
A cooling abnormality detection system for electronic equipment includes a protection unit with two temperature sensors arranged in each piece of electrical equipment. A temperature difference measuring means receives the measured temperatures from each piece of equipment, and outputs a sensor failure signal when the absolute value of a difference between the temperatures measured by the two temperature sensors exceeds a first predetermined value. An abnormal temperature signal is output from the temperature difference measuring means when the two measured temperatures both exceed a second value. The sensor failure signal is transmitted to the electronic equipment, while generation of the abnormal temperature alarm interrupts power supply to the electronic equipment.
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