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Simple method for detecting fuses.
The fuse (rated current in of its fuse is determined by the following formula: 0. 8 / C / A, where C is the capacitance ) and the capacitor to be tested is connected in series to a 220V AC power supply. If the fuse of the fuse explodes, the internal circuit of the capacitor has been short-circuited. If the fuse of the fuse does not break, after a few seconds of charging, cut off the power supply, with a screwdriver with insulation to the capacitor of the two short circuit discharge, sparks show that the capacitor is good. Conversely, the capacitance of the capacitor has become smaller or has been opened. This method should be repeated several times in order to get the correct conclusion.
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