磁跑机
有一个健身用的脚踏机, 不用外接电, 脚踏的同时会发电(内部有强电产生), 供一个面板显示数据（脚踏的速度和踏的总路程）这种机器能用家电的标准么?
不能！ 甚至不能用低电压指令！见
III. SCOPE OF THE “LOW VOLTAGE” DIRECTIVE
Which products are covered?
7. The Directive applies to all electrical equipment designed for use with a voltage
rating of between 50 and 1000 V for alternating current and between 75 and
1500 V for direct current. Voltage ratings refer to the voltage of the electrical
input or output, not to voltages that may appear inside the equipment. 你的强电是多少？
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