3 ms·
DC voltages below 50 V are considered "safe" in normal indoor conditions. It's often referred to as "extra low voltage", as opposed to "low voltage" (50 V - 100
by semi-extrinsic 8y ago
DC voltages below 50 V are considered "safe" in normal indoor conditions. It's often referred to as "extra low voltage", as opposed to "low voltage" (50 V - 1000 V) and "high voltage" ( > 1000 V).
If you want to verify the safety of 18 V: ever touch both poles of a 9V battery with your fingers? You can't feel anything. Go ahead and try two in series, you still won't feel it.
- naikrovek 8y agoReally? I can feel 4 volts between my finger and thumb. Isn't painful or anything, but I can tell when a lipo battery is charged vs. discharged.
- Maskawanian 8y agoYes, here is a good video about this: https://www.youtube.com/watch?v=ZxBF7WC0TQk https://www.youtube.com/watch?v=ZxBF7WC0TQk
- xxs 8y agoYou can feel lower voltages if you fingers are injured, or if you... lick them. As kids (6-9y) we used to test the voltages of 3R12 (4.5v) by touching the poles with tongue, a sharp bites - the battery was good.
- dbuder 8y ago42V is the limit for reliable non lethal shocks.