[Diy_efi] 12V vs 42V

[bcroe at juno.com]

I believe the filaments for bulbs get too fragile for a car, 
when made very long and skinny for higher voltages.  Just 
bump a 120 volt bulb when powered and its open circuit.  

Certainly the safety issue puts a lid on voltage, just as it 
has in the phone business for over a century.

Bruce Roe

13 Jan 2003 Bernd Felsche <bernie at innovative.iinet.net.au> writes:
> On Mon, Jan 13, 2003 at 01:17:32PM +0000, Mike wrote:

> > Things get more interesting with the higher voltage,
> 
> The reason for the "about 40V" choice is that the current 
> crop of automotive electricians won't require re-licencing. 
> At least not in the USA and EU. They're allowed to fry 
> ECU's and blow airbags rated to about 40V.

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