Re: cable amp ratings - answers to wrong questions

[Victor Tikhonov <vtikhono@lsil.com>]

Yeah, right. Any authority will tell you what are you not suppose to do.
None will tell you what exactly happens if you do it. As I said, 
too conservative info usually based on liability concerns. 
Not diminishing importance of NEC or criticizing them, but do you 
honestly believe NEC cares about your personal well being when 
they tell you to use certain wire gauge for x amps?

Someone posted info to my question that 2/0 welding
cable is "rated" at 300A capacity. Yet most conversions
using it, especially racers, pull far more, and it doesn't
bother anyone including NEDRA. This is because everyone knows
that 2/0 is OK for much more amps and that this kind of rating 
in common electrician's books, without considering application
specifics, is just nonsense.

Victor

Joe Smalley wrote:
> 
> > So, who do you think writing these references books?
> 
> The same people that say you can't pull more than 75% of a circuit rating.
> For example, you are only allowed to pull 24 amps from a 30 amp circuit.
> 
> I would expect it to come from the same place as the National Electrical
> Code.
> 
> Joe Smalley
> Rural Kitsap County WA
> Fiesta 48 volts
> NEDRA 48 volt street conversion record holder
> joes@worldfront.com