摘要
根据相关本安标准对小元件表面温度的要求,阐述了小元件表面温度对本安电路所产生的影响,并举例说明了如何采用热阻公式计算小元件的表面温度,以及所采取的相应处理办法。
According to the requirements on surface temperature of the small component in GB 3836.4-2000, the author expounds the affection of the surface temperature for small component to the intrinsically safe circuit.Furthermore, he presents the clear description on how to calculate the surface temperature of the small components by the thermal resistance formulae with some examples, as well as the solutions for the eorrespondant eases.
出处
《电气防爆》
2005年第3期10-13,共4页
Electric Explosion Protection
关键词
小元件
最高表面温度
热点燃
本安电路
small component
max. surface temperature
thermal ignition
Intrinsically safe circuit
