I know a washing machine and a coffee grinder are considered inductive loads so when doing math for wiring you would multiply wattage by 2x to be on the safe side. Just one plate of my inductive stove, apparently, is the biggest load in the house. It says 2100W on it. I wonder if I should treat it as a 4000W load when doing wiring. I have a strong grid connection so it was not an issue so far, but I am planning to add some batteries and the difference between 2KW and 4KW would be a major issue.
So the specific issues I'm concerned about:
- Power factor. Do typical induction stoves have a power factor close to a washing machine?
- Inrush / collapsing flux when you turn it on/off. I wonder if that might be even worse than in a washing machine. Once I had a plug come loose on that stove and before it switched itself off, it arc welded a few square millimeters off the plug and blackened the wall outlet.
Are there any rules of thumb about how to treat induction stoves when doing wiring?