[rescue] I'm not an EE Q - clarification

[Larry Snyder]

Hey Kris --
Thanx for taking this out where I was thinking.  Excellent explanation!
-ls-

Kris Kirby <kris at catonic.net> wrote:
> On Thu, 18 Jul 2002, James Sharp wrote:
> > No, I'd say in this case that its "no thicker than" - meaning that nothing
> > bigger than 12 AWG will fit in the connectors.
> >
> > > That would be 'no thinner than'.
> 
> > > > DC Supply and Ground Conductor
> > > > The requirements are:
> > > > o Suitable conductor material: tinned copper (stranded) only
> > > > o Conductors: 12AWG maximum (between the Netra t1 Model 100 and the circuit
> > > > breaker). There are three conductors:
> 
> The wonderfully screwed up part about this (and why it sounds so
> confusing) is that they *are* talking about 12GA being the largest size
> the terminals will take. However, the American Wire Gauge specifies that
> the *lower* the number, the *larger* the wire. Thus 10GA is a lower
> number, yet larger than 12GA.
> 
> And from the looks of it, they don't want you to use solid wire, either.
> 
> There's nothing wrong with making a pigtail of 6" of 12GA to connect to
> the Netra and however many feet of other stuff you need to get power to
> it. Fr'instance, let's say I wanted to keep the Netra in the corner of the
> basement of our house and keep the batteries in the garage.
> 
> 6" Pigtail
> 100 feet wire, spec to 12GA.
> For each 50 feet, go down `two' sizes (12 -> 10, 10 -> 8)
> 100 Feet #8, fused at 20A (that's all #12 can do)
> 
> Also, remember that 48V = 12V * 4, so the nominal battery voltage should
> be around 55.2V, and at a very maximum 57.6V. And don't forget polarity --
> it's a positive ground system.
> 
> If you do decide to use batteries, please, for the love of $deity,
> be careful. 48V worth of 33AH cells *can* kill you. 48V worth of 7AH cells
> can do it to!
> 
> --
> Kris Kirby, KE4AHR  <kris at nospam.catonic.net>  TGIFreeBSD IM: 'KrisBSD'
> "Everytime my faith in humanity has been tested...humanity has failed."
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