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Development of the Observation Device for the Earth Wire of Mine use Cable with Monitoring Core Wire

Du Xiangzhong(Maanshan Institute of Mining Research)  
To prevent the danger to personal safety and the equipment failure caused by the leakage of the big high voltage electrical equipment in open pit mines,an observation device for the earth wire of mine use cable with monitoring core wire was developed.This device can be used to monitor the continuity of the core wire of cables and to ensure the safety of high voltage electrical equipment and the operators.
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