3 ms·
DC Kills. And quickly too. There is no 0 Volt in its strength (AC cycles from positive peak to negative peak, about 50 to 60 times a second, depending on which
by kumarvvr 6y ago
DC Kills. And quickly too. There is no 0 Volt in its strength (AC cycles from positive peak to negative peak, about 50 to 60 times a second, depending on which country you are in).
DC is dangerous. Anything above 100 Volts is risky.
Most home lighting and fans can be run with 48 Volts though. So we could have separate wiring for appliances and low voltage DC stuff.
- cesis 6y agoI'm wondering whether this applies nowadays with all the modern safety equipment available. And it is also possible to run pulsating DC.
- zaarn 6y agoAC above 100 Volts kills quickly too. It can actually kill more easily. You need about 4 times as much DC current going through the body compared to AC. 220Volt DC is safer than 220Volt AC. This is in part because our body (specifically the heart) can handle a constant voltage shock much better than a constant frequency interfering with the nervous system. When you get hit with DC, all your muscles contract once, then adapt. When you get hit with AC, all your muscles contract 50 times a second. In fact the IEEE did experiments, concluding that it's easier to let go of a possibly lethal DC source than an AC source for this reason. Additionally, the human body has a higher impedance to DC than to low frequency AC. So you already need more DC voltage to induce the same current.