New tech makes this easy. Install Arc Fault breakers. ------- There are circuit breakers specifically designed to detect the conditions you are talking about. They contain a small digital signal processor that listens for the telltale sound of arcing. I talk like it's a sound, it really is - if you've ever had a loose connection on a speaker or headphone, you've heard it. They are called AFCI breakers. I imagine in a new build, your panel isn't CH, QO, or an obsolete panel like Pushmatic... so the AFCI breakers shouldn't be too expensive, probably in the $30 range. If the breaker slot is already occupied by a GFCI breaker, you can either use a combo AFCI/GFCI breaker, or relocate the GFCI function downline to the first receptacle. Unfortunately AFCI *receptacles* are not common. All my panels are the kinds where GFCI breakers are prohibitively priced, so I am fond of sticking a junction box 6 inches away from the panel and sticking GFCI receptacles there, then feed the LOAD wires back into the service panel to serve the circuit I'm protecting.