4 ms·
Shorting a capacitor of sufficient size can send molten metal bits flying around as the leads melt under high current, or even make the capacitor explode. I’m
by ericbarrett 5y ago
Shorting a capacitor of sufficient size can send molten metal bits flying around as the leads melt under high current, or even make the capacitor explode. I’m all for DIY repairs, but if you’re going to do this at least wear safety goggles. Also, short the capacitor after turning the power off and before unscrewing it—that’s the time you’re most likely to complete the circuit with a fleshy part.
Edit: There might also be other bits in the system with residual power that refill the capacitor even after unplugging the mains, so a voltmeter is a good idea as well.
- Faaak 5y agoI'm sorry, but you speak like you're living in a movie. Shorting a starter cap won't do anything of what you said. These caps are actually small (couple hundred uF). At the worst you'll produce a small spark. nothing more.
- ericbarrett 5y agoIf you think you know exactly what's going on with a strange cap and want to take that risk, go for it. Me, I like my forearms unscarred.
- Dylan16807 5y ago> There might also be other bits in the system with residual power that refill the capacitor even after unplugging the mains, so a voltmeter is a good idea as well. Like what, when it was already turned off? And especially, what do you imagine recharging a significant capacitor to more than 50 volts?