请教大神IEC60335-1:2020以下蓝色内容怎么理解,看起来好像和上边的都没什么关系啊
本帖最后由 jansle_happy 于 2020-12-8 10:08 编辑请教大神IEC60335-1:2020以下蓝色内容怎么理解,看起来好像和上边的都没什么关系啊
5.13 The tests for appliances with PTC heating elements and for heating appliances and combined appliances where the heating elements are supplied via a switch mode power supply are carried out at a voltage corresponding to the specified power input.
When a power input greater than the rated power input is specified, the factor for multiplying the voltage is equal to the square root of the factor for multiplying the power input.
标准里会出现1.15倍功率的测试或者1.24倍功率的测试,如果是PTC,功率永远达不到该倍数,所以就在额定电压上乘以根号1.5或根号1.24来测试。 学习了,感谢大神指教 学习了,感谢安规网里的大神 学习了,感谢大神 PTC加热元件或开关电源供电的,你即便上调电压也达不到标准要求的1.15倍、1.24倍额定功率,这个时候1.15或1.24这个系数开根号再乘额定电压即可。用电压值来代替功率值进行测试 新手学习
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