Hello again HotLine1

"When there is a 'bad connection' that generates heat, which further deteriorates said 'bad' connection, is there not an 'arc' (series arc)??" Not necessarily, and often not.
Arcs often reach at the end of heating (often much later). Also I tested AFCIs, and never trip with series arc! Someone tried this test?
Thank you.
Regards,
FLV -