>>2948929
>Honestly, it is actually RARELY a wiring issue that causes AFCI breakers to nuisance trip, it is far more common for it to be an incompatibility with certain types of loads. Electronic power devices, like "inverters" cause electrical distortion that can often look like an arc signature to the AFCI circuit. it used to be that inverter loads were extremely rare in residential applications. But now to save energy, they are in all manner of appliances; refrigerators, microwaves, washers, dishwashers, dryers vacuums etc. etc. As time has gone on, the AFCI mfrs have tweaked their algorithms and filtering to help with this, so if you have an OLDER CAFCI, (which is would be if labeled as Murray) it might help to get a new Siemens version.
the salient point being it's not the breaker tripping it's the circuit interrupt because of the type of appliance.

also measuring amps is an inaccurate measure of load as it fluctuates over time. at least I was taught the proper way is to compare watts of all appliances possibly causing load, essentially the housewife plugging in the vacuum method. but again it doesn't seem that's what is happening just that your conflating the causes.