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The normal patch board needs people first to search for the right plugholes and second to insert the plug in with force. However the flat surface of this special patch board is divided into hexagons, enabling plugs to be simply put around the vertex of each hexagon and the three different current leads will be connected to the plug according to the color of the space. The red, the pink, and the blue area are respectively for power line, earth line, and zero line. When current comes through the plug, it generates magnetic force to make the plug arrested by the patch board.
Weiyu Ruan Jia Rao Xiao Luo Yanlin Li