[KongchangAI]
Unverified85% confidenceFactTime unknown

搭电线的实际有效导电性看纯铜含量:所谓'铜包铝'线缆导电率仅为纯铜的60%左右,同截面积承载能力大打折扣,长期或大电流使用选全铜芯

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85%
Confidence
Long-term
Relevance
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