但同时规定当一个信息技术产品的电源是由限功率电源(Limited Power Source)来供电时,若电子零件是安插在防火等级V-1以上的PCB时,则该产品可以不必提供防火外壳,也就是可以使用HB燃烧等..
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Limited Power Source Test 限功率测试 ; 限电源测试
inherently limited power source 固有型限功率源
Pulse width modulation is used to reduce the total power delivered to a load without resulting in loss which normally occurs when a power source is limited by a resistive element.
脉宽调制技术是用来降低总功率交付给了负荷,没有造成损失,这是通常发生时,电源是有限的,由电阻芫件。
Depending on the fluid volume and precharge pressure of the accumulator, a limited amount of hydraulic energy is then available independent of any other power source.
根据储能器的流体体积和预充气压力,可获得某限定数量的液压能量而不依赖任何其它动力源。
Because of the limitation of power source, the working time of MDV in each dive will be limited.
由于能源有限,灭雷具每次下潜的工作时间将受到限制。
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