Re: (ET) Tool receptacle

["RJ Kanary" <rjkanary nauticom net>]

I guess that you have to look at it from this standpoint......if a hand 
held
accessory ever did short, the first warning would be from the smoke arising
from the comparatively high resistance of the power cord. That would
encourage you to unplug the device, unless the plug was to hot to grasp.
<VBG> Since I have never had a chance to talk to any one involved in the
development of the ET, I will just have to assume that it was an oversight.


RJ Kanary
Member TRNi  Since 1998
ASE® Certified Master Auto Technician

rjkanary nauticom net

----- Original Message -----
From: "Christopher Zach" <czach computer org>
To: "RJ Kanary" <rjkanary nauticom net>; "Elec-trak"
<elec-trak cosmos phy tufts edu>
Sent: Friday, March 08, 2002 9:35 PM
Subject: Re: (ET) Tool receptacle


> Yep, I have the homeowner's manual; I just didn't see a fuse and it blows
my
> mind (that's a good pun :-) that they didn't fuse an outboard outlet. 
> What
> happens if the chainsaw shorts? Melts in your hand?
>
> That's technically a problem for me since the Elec-Trak's 20amp outlet
plugs
> directly into the outboard side of the Solarex charger. Thus if the
charger
> were to ever short, the full force of the tractor's battery pile would
> incinerate the controller and cable. My panels and the rest of the shed's
> power infrastructure are safe because they are behind a 20amp 10k AIR DC
> rated fused disconnect.
>
> I guess I'll just have to put in a second RK5 30amp disconnect box at the
> plug end for the tractor, since it's technically an unfused power source.
> And maybe a little sanity fuse in the tractor itself. This will make four
> disconnect boxes on a simple shed.
>
> Drat.
>
> Chris
>
> ----- Original Message -----
> From: "RJ Kanary" <rjkanary nauticom net>
> To: "Christopher Zach" <czach computer org>; "David Roden (Akron OH USA)"
> <roden ald net>; "Elec-trak" <elec-trak cosmos phy tufts edu>
> Sent: Friday, March 08, 2002 9:15 PM
> Subject: Re: (ET) Tool receptacle
>
>
> > Christopher, SO-2 can be interrupted by CB-2, the one primarily 
> > intended
> for
> > protection in event of a diode shorting on the charger,[on the negative
> > side], or CB-1, that husky, 100 to 125 Amp      Klixon® beast, that
lives
> on
> > the traction motor,[positive side].
> >        Neither can be expected to provide over current protection to
that
> > outlet. It is, for all intents and purposes, unfused.
> >       If you have not already done so, order the Homeowner's Service
> Manual
> > from Tech Parts. The schematics are large enough, and clear enough, to
> make
> > puzzling out what goes where and why pretty straight forward.
> >
> >
> > RJ Kanary
> > Member TRNi  Since 1998
> > ASE® Certified Master Auto Technician
> >
> > rjkanary nauticom net
> >
> > ----- Original Message -----
> > From: "Christopher Zach" <czach computer org>
> > To: "David Roden (Akron OH USA)" <roden ald net>; "Elec-trak"
> > <elec-trak cosmos phy tufts edu>
> > Sent: Friday, March 08, 2002 8:01 PM
> > Subject: Re: (ET) Tool receptacle
> >
> >
> > > Actually there might be a solution (there's always a solution :-)
> > >
> > > Way back in my pile of junk is an old DEC TC01 DecTape unit from the
> > 1960's.
> > > This unit used the same twist-lock plug; however it had a third round
> pin
> > in
> > > the center.
> > >
> > > That was the ground. My guess is Hubbel built an ungrounded version
(the
> > one
> > > on the ET) and one that had a hole in the center for plugs with three
> > > prongs. As per NEC codes, one could plug an ungrounded device into a
> > > grounded receptacle, but one could not plug a grounded device into an
> > > ungrounded receptacle (think normal 2 and three prong outlets)
> > >
> > > Thus if I can find one of these, I could retrofit the tractor, have 
> > > my
> > > ground (which would be nice, because someday this system will charge
off
> > > 20amps of solar) and plug in ET devices when needed.
> > >
> > > Anyone know if that outlet is fused with a 20-30 amp fuse?
> > >
> > > Chris
> > >
> > > ----- Original Message -----
> > > From: "David Roden (Akron OH USA)" <roden ald net>
> > > To: "Christopher Zach" <czach computer org>
> > > Sent: Friday, March 08, 2002 11:25 AM
> > > Subject: Re: (ET) Tool receptacle
> > >
> > >
> > > > On 7 Mar 2002 at 19:18, Christopher Zach wrote:
> > > >
> > > > > Kind of how you will not find two prong electrical outlets
anymore;
> > > > > installing one is pretty much a violation of current NEC codes.
> > > >
> > > > This is generally correct.  Note though that in an older home with
> > > > ungrounded wiring, NEC prohibits installation of a 3-pin outlet as 
> > > > a
> > > > replacement for a defective 2-pin, unless a ground is run to the
box.
> > > There
> > > > is some question in my mind about whether installing a 2-pin outlet
is
> > > > permitted or not -- this is unclear to me.  However, in such cases
the
> > > code
> > > > explicitly permits the installation of a GFI ~without~ ground (yes
> they
> > do
> > > > still function that way), provided that the outlet is labeled "no
> > > equipment
> > > > ground."  This is what I do when replacing the outlets in my 
> > > > current
> > home
> > > > (circa 1920).
> > > >
> > > >
> > > > David Roden - Akron, Ohio, USA
> > > > 1991 Solectria Force 144vac
> > > > 1991 Ford Escort Green/EV 128vdc
> > > > 1970 GE Elec-trak E15 36vdc
> > > > 1974 Avco New Idea 36vdc
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=
> > > > Thou shalt not send me any thing which says unto thee, "send this 
> > > > to
> all
> > > > thou knowest."  Neither shalt thou send me any spam, lest I smite
> thee.
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> > > >
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> > >
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