Re: [Electric Boats] wire gauge

 

Zero downside, multiple upsides.
48V is still fairly low voltage, not too efficient, but not too bad either.

Personally, I think 48V for 20kW is "not too efficient", but the reality will be mostly/ max 5% of peak use, where thick cables make the whole thing work well.
So I think the idea is pretty close to mini-max.

48V is "safe", and this is a big upside.
Most welding/plasma stuff is 30-40V, +/-.
The  EU low voltage directive is 80V DC max.

If you have the money, use the thick cables you mentioned.
Boats don´t make money - they annihilate it.

On 11/04/2017 23:09, Jeff LaCoursiere jeff@jeff.net [electricboats] wrote:

I basically understand that thicker cable has less voltage loss,
therefore less heat, and more efficient. Is there any downside other
than cost to going as thick as possible?

Thanks for any advice!

Cheers,

Jeff LaCoursiere
s/v Angels Quest

--   -hanermo (cnc designs)  

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Posted by: Hannu Venermo <gcode.fi@gmail.com>

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