[KongchangAI]
Unverified83% confidenceCautionTime unknown

线缆长度与线径需匹配负载:接大功率电器时不要贪长,线越长压降越大发热越明显,1.5米内、线径≥1.5mm²更安全;长距离用电应改用固定布线而非长插线板延长

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