4 ms·
Another factor I haven't seen mentioned in the responses yet is safety to human bodies. You (or your kid) can stick a wet finger in a 12V DC charger socket in
by acranox 5y ago
Another factor I haven't seen mentioned in the responses yet is safety to human bodies. You (or your kid) can stick a wet finger in a 12V DC charger socket in your car and not get an electric shock, including any of the exposed contacts under the hood, including the battery terminals. But once you're up to 40-60V, the risk of electric shock to humans is actually something that needs to be factored in.
- R0b0t1 5y agoYou'll get a shock if wet slightly below 9V. It just stays on your skin. Voltage penetrates dry skin at around 50V, and this is the legal definition of high voltage.
- HeyLaughingBoy 5y agoSomething I learned around 12 years old, licking the terminals of a 9V battery :-)
- YZF 5y ago40V is still fine IIRC. I think 48V is the threshold.
- oehtXRwMkIs 5y agoWhat amperage are we talking about here? Discussions of electrical safety solely in terms of voltage is nonsense.
- marsokod 5y agoAmperage is set by the resistance of the human body. That's in the order of 2kOhm, so at 50V, you get a current of 25mA. That's in the zone where it becomes quite intense for you. At 12V, we are just talking about 6mA, where you can feel the electricity but it should not be hurting too much.
- oehtXRwMkIs 5y agoThanks, that makes sense.