Abstract
Current protective device against direct and indirect electric shock as well as effective protection against electrical fires has been widely used in the rural power grid, but there is also a more prominent issue. Residual current protection device in use often appearing malfunction, tripping phenomenon has seriously affected the security and stability and reliability of power supply and low voltage distribution systems. In this paper, it should be from a low-voltage distribution systems and wiring protection devices, power grid maintenance operation, standardized management products, technical training and promotion of social workers and other aspects of a comprehensive solution to this problem; and presented on the remaining current protection device applications, some of the views.
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