This is a follow up to some research after an extension cord fire caught me off guard.  Don't let this happen to you!  Update your AFCI breakers or add one...       Background:     First off, from this link:   http://www.leviton.com/OA_HTML/SectionDisplay.jsp?section=61255   1) What is an arc-fault? The UL Standard for AFCIs defines an arc-fault as an unintentional arcing condition in a circuit (wiring). Arcing creates high intensity heat (may exceed 10,000 degrees Fahrenheit) resul