This paper is the design method of power supply system of the line network exploration and practice of a low cost, high safety, easy operation and promotion, and a detailed list of the basicmaterial needs of network power equipment room power supply system security design:two-way switch, 25 square copper cable, 6 square, 4 square copper wire 60, battery, 3 battery, two UPS power supply cabinet. The circuit topology is proposed, the use of safety precautions of the power supply system, is very intuitive to show to the user.%文章为经探索和实践得出的一款低费用、高安全、易于操作和推广的机房网络供电系统线路设计方法，并详细列出了机房网络电源供电系统安全设计上需要的基本材料：双向开关、25平方铜电缆线、6平方铜线、4平方铜线、60节电池、3个电池柜、两台UPS电源。给出了电路设计拓扑图，提出了安全电源供电系统使用的注意事项等，非常直观地展现给用户。
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