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Dangerous Multimeters (+ Explosion, Smoke & Fire)
Sharing my explosive experiences with dangerous multimeters and recreating the explosion of the probe that originally exploded inside my hand. Some multimeters can't handle mains voltage on some ranges, despite the manual claims they should. They often claim maximal voltage to be 500 to 1000V, despite the fuse is rated only 250V. The cables have very thin copper core, despite being rated 10 or even 20A. In use, they get very hot. As the cables of the multimeter are frequently used and are exposed to bending, the copper core slowly breaks, until just few hairs remain. This mostly happens where the cable leaves the probe. Then you measure a high current (like 10A) and the cable just EXPLODES!!! This is exactly what happened to me while measuring the current of a 230V 10A load. The multimeter probe exploded in my hand and miraculously only burned me but it didn't electrocute me.
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