Weegy: an electrical fault occurs on an electrical line, the point of origin is on a [http://en.wikipedia.org/wiki/Arc_mapping] User: What is an electrical earth fault? Weegy: As you know electricity takes the path of least resistance. If the path of least resistance happens to be the earth, then the power leaks to the earth, causing an earth fault. This usually happens in a floating neutral circuit. [ http:// /question/?qid=20060906025811AABpAPP ] User: What is overcurrent? Weegy: The fundamental purpose of overcurrent protection is to protect conductors and [www.iaei.org/subscriber/magazine/magazine_02_b.htm] User: What is a short circuit? Weegy: A short circuit (sometimes abbreviated to short or s/c) in an electrical circuit allows a current along a different path from the one intended. [ The electrical opposite of a short circuit is an "open circuit", which is an infinite resistance between two nodes. It is common to misuse "short circuit" to describe any electrical malfunction, regardless of the actual problem. ] (More)