VDE标准里电源线有明确提出以电阻为判断标准而不以截面积来判定吗
请问VDE电源线标准里有提到电源线以测得的电阻值为判断标准而不以截面积来判定的说明吗?如果有请帮忙指导下在标准的哪一部分哪一章节中提到,谢谢!
事情很急,看标准时间来不及,只好先求助大家。
找到了,在IEC 60228标准里有提到:
2.2
nominal cross-sectional area
value that identifies a particular size of conductor but is not subject to direct measurement
NOTE Each particular size of conductor in this standard is required to meet a maximum resistance value.
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