3 ms·
Because its nasty stuff! switching off a low Z 200V DC carrying 20 A in an emergency is not trivial. AC arcs self extinguish every 100 or 120 Hz.
by thsksbd 3y ago
Because its nasty stuff! switching off a low Z 200V DC carrying 20 A in an emergency is not trivial.
AC arcs self extinguish every 100 or 120 Hz.