When dismantling the melt, it is required to:
(1) Before installing a new melt, find out the cause of the melt fuse. If the cause of the melt is not determined, do not replace the melt for test delivery.
(2) When replacing a new melt, check whether the rated value of the melt matches the protected equipment.
(3) When replacing the new melt, check the internal burn of the fuse tube. If there is serious burn, replace the fuse tube at the same time. When the porcelain melting tube is damaged, it is not allowed to replace it with another material tube. When replacing the melt of the filler-type fuse, pay attention to filling the filler.
