That's the exact reason Germans don't like the concept of RCDs - it seems some old electric range elements have the very same issue ad once connected to a protected supply will trip the RCD. The stories of such incidents magnified as such stories usually do and now many people believe it's impossible to connect ranges to an RCD. In fact it's simple - if the element trips the RCD it's faulty and has to be replaced. Period. Yet people are known to even remove the ground connection of the range (or bypassing the RCD)...
