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。
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.
LED灯具须在稳定的、精心调控的电流强度下运行，不应在超过其额定电压或额定电流的情况下超负荷运行。
The LED fixture shall be operated at constant and carefully regulated current levels. LEDS shall not be overdriven beyond their specified nominal voltage and current.
熔断器选择必须依据其使用条件来进行，主要有系统电压、额定电流、短路容量、保护配合等。
Selection of fuses must be carried out according to their use conditions, mainly they are system voltage, rated current, short circuit capacity, protection suitability etc.
概述了在轨道交通系统中选用直流熔断器的目的及选用方法，包括额定电压、额定电流的选择，与断路器的配合工作。
The object of using DC fuse in tunnels and way of selection were expounded, including the selection of rated voltage and current, and the coordination of circuit breakers.
断路器型号、级数、脱扣器额定电流、周围空气参考温度、接线方式、附件种类和附件额定工作电压。
Type of circuit Breaker, pole number, rated current of tripping device, reference temperature of ambient air mode of connection, kind of accessories and their working voltage ratings.
电容器安全使用条件不仅受额定电压（或类别电压）的限制，而且受额定电流的限制。
Safety use of capacitor must be within the rated voltage(or category voltage)and the permissible current.
订购保险丝时，请注明额定电流安培数和电压。如果需要确定适当的尺寸，请参阅美国国家电气规程。
When ordering fuses, specify Ampere rating and voltage. Refer to the National Electrical Code for proper sizing.
晶闸管的选择参数很多，但用于可控整流时，主要是额定电流、额定电压的计算与选择。
We have a lot of parameters to choose transistor, but when we use it in controlled rectification, the specified electric current and the specified voltage are the principal ones.
晶闸管的选择参数很多，但用于可控整流时，主要是额定电流、额定电压的计算与选择。
We have a lot of parameters to choose transistor, but when we use it in controlled rectification, the specified electric current and the specified voltage are the principal ones.
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