发布时间:2025-01-31 12:14:19
普通短路有两种情况:①电源短路。即电流不经过任何用电器,直接由正极经过导线流回负极,容易烧坏电源。②用电器短路,也叫部分电路短路。即一根导线接在用电器的两端,此用电器被短路,容易产生烧毁其他用电器的情况。
户外休闲家具安全性能要求 桌椅类产品 gb 284782012
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