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熔斷器

熔斷器熔體或熔管的更換方法

發布日期：2022-10-11 點擊率：531

對熔斷器的熔體或熔管進行更換，必須在不帶電的情況下進行，即使有些熔斷器允許在帶電的情況下取下，也必須在電路切斷的情況下進行，以免因電弧引起事故。熔體必須按原規格、材質更換。正常使用的熔絲熔斷后，不能用幾根小熔絲代替原來的1根熔絲，也不能用不同材質熔絲代替。作為應急措施，多根熔絲并聯使用時，不應扭在一起，否則散熱條件差，會使熔斷電流降低。

    使用熔片的熔斷器熔斷后，必須用相同規格熔片更換，不能用大電流熔片裁剪后作為小電流熔片使用，否則將會使熔片的熔斷特性發生改變，同時熔斷電流也不能準確掌握，由此會嚴重影響保護特性。

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