"Chris Hogg" wrote in message
...
On Mon, 25 Jan 2021 00:21:19 +0000, alan_m
wrote:


He's generating low voltage 3 phase AC from a water powered turbine,
rectifying it to 24V DC and then using a inverter to generate 110V AC
(this is the USA). This is then wired to a standard USA plug which he
plugs into a wall socket - almost the equivalent of having an extension
lead with a main plug on each end


Yebbut as you point out, it's America and 110 volts, so AIUI it's
unlikely to be lethal. Not to be repeated in the UK with 240 volts
though. AIUI lot of UK kit used by builders is rated 110v via a
step-down transformer, for just that reason: it's not lethal.

Kit used by builders is not only 110 V, but the supply is fed by a split
winding transformer, with the centre tapping earthed, so the power lines are
at + and - 55 V wrt earth (*). You still get a 110 V shock if you touch the
two terminals, but if you touch one terminal and earth (possibly the more
common "failure mode") then you only get a 55 V shock.


(*) OK, I know it's AC, so "+" and "-" don't really mean anything.