Addenda - my numbers are wrong. I was including lightning strikes in the AU numbers, but the US numbers were electrical (lines, domestic, construction, etc) on

Addenda - my numbers are wrong. I was including lightning strikes in the AU numbers, but the US numbers were electrical (lines, domestic, construction, etc) only. So fatality ratios skew higher in the USA than AU, at least. The numbers are quite low in both cases, so the ostensible safety benefits of 110V at 15-20A may not be terribly compelling in practice.