Man on Bridges wrote:
With a Copper resistivity/m of 0.0175 this requires a wire with a
thickness of 10.0 mm^2
or a diameter of 3.57 mm (= approx. AWG 7 ! ), which results in a wire
of 0.00175 ?.
Such wire is VDE approved for a maximum of 66.00 A and with single
phase 230V AC this results in a maximum power of 15300 W!
12 kW water heaters at 240 V require 4 AWG wires (5.19 mm). See p. 16 here:
http://www.americanwaterheater.com/support/manuals/res-elect.pdf
That's bigger than 7 AWG. The lower the number, the bigger the wire.
Rossi's devices have ~18 AWG wires judging by appearance.
- Jed
