過電流

過電流是指電氣設備上流過過大電流的情形。過電流會使設備發熱,甚至有著火或是損害零件或設備的情形。常見的過電流原因包括短路、負載過大、設計錯誤、或是接地故障。為了避免過電流的,一般會加裝保險絲斷路器溫度感測器或是限流裝置等設備。

相關標準

  • IEC 60364-4-43: Electrical installations of buildings – Part 4-43: Protection for safety – Protection against overcurrent

相關條目

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