The dissolving current of the standard fuse is 2.5 times that of the nominal current, that is, the fuse melting current of the 1A is 2.5A. Because the current in most loads is larger than normal, such as, motors, lights, when selected, consider voltage fluctuations, load fluctuations, etc., and insurance selected as the rated current of the load. Burning insurance. Not all insurance has the above characteristics, such as microwave oven high -pressure insurance, color TV full -machine insurance.

