A method of detecting arcing between two electrical conductors the method including generating an image of the electrical conductors; determining a region of interest in the image where arcing between the electrical conductors is likely to occur, isolating the region of interest processing arcing candidates captured in the image and falling within the region of interest to screen the arcing candidates to reject artifacts likely to have been caused by factors other than arcing, and validating that a selected arcing candidate is an arc by further processing the selected arcing candidate.