3 ms·
AC also allows for smaller switches and relays, as you are guaranteed to hit 0 V within a phase, so you can disconnect loads without giant sparks/arcs.
by Max_aaa 8y ago
AC also allows for smaller switches and relays, as you are guaranteed to hit 0 V within a phase, so you can disconnect loads without giant sparks/arcs.
- MertsA 8y agoWithin half a phase. And not to nitpick, but the important part isn't that it's 0V, it's that it's 0A which isn't the same point when dealing with inductive loads.