Well had my forth and final trouble call today at a custom house we did for an EE I know. He asked me to put in the Arc Fault breakers in his new house. He and his lovely family moved in 3 weeks ago. Seems that almost every morning, when his wife drys her hair down goesw the master bedroom power. Three times the arc fault breaker tripped and would not reset. They told me they reset it several times before it would not reset. All wiring tests just fine as does the outlets. But let her run a hair dryer and good bye power.
Today those $28.00 arc faults are back at the supply house.(all 4 of them) Told them I want my money back. Regular 20 amp breakers are now in the panel. At the EEs request all outlet wiring in his house is #10-2G romex with all outlets pigtailed with #12.
Yes he paid for it - he is also not very happy with the new arc fault breakers.
Thankfully since he is an EE, he understands the problem-- His wife is madder than He**. She does not want me back.


ed