[bob1029]

> I don’t know much about US electrical standards but aren’t your residential circuits rated for 1800w or 2400w?

The residential AFCI issue I describe isn't about the wattage directly. It's about transient currents generated by large switch-mode power supplies being detected as arc faults. Similar concern as with induction motors.

[teruakohatu]

That is interesting. In New Zealand AFCI is only required on 20A sub circuits in places that have a high fire risk, contain irreplaceable items, school sleeping areas and some other minor circumstances.