The upper and lower limits of the rated power input or rated current shall be marked on the appliance so that the relation between input and voltage is clear.
额定输入功率或额定电流的上限值和下限值应标在器具上，以使得输入功率与电压之间的关系是明确的。
P. S. :The peak current or power should be tested when other output of DC overshoot rated load, and the peak current pulse widens within 100ms.
峰值电流或功率的测试是在其它额定负载时测试，且脉宽小于100毫秒。
It is recommended that AC power supplies to instruments be protected by fuses or automatic circuit breakers rated at not more than 2 Amperes, and must be separated from any load current circuits.
最好使用交流电源供电，并为设备安装保险丝或额定电流小于2安培的自动断路器，自动断路器还必须与其他负载电流电路分离。
It is recommended that AC power supplies to instruments be protected by fuses or automatic circuit breakers rated at not more than 2 Amperes, and must be separated from any load current circuits.
最好使用交流电源供电，并为设备安装保险丝或额定电流小于2安培的自动断路器，自动断路器还必须与其他负载电流电路分离。
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