10057| 9
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[已回復(fù)] 安全隱患 |
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點(diǎn)評(píng)
請(qǐng)問(wèn)這位客服人員:0.4千伏屬于低壓?jiǎn)幔?.4千伏=400伏,我們?nèi)粘C裼秒?20伏屬于低壓,380伏應(yīng)該屬于高壓吧!我不是專(zhuān)業(yè)人員,請(qǐng)給解釋清楚一點(diǎn)!
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