[Elecraft] OT: 2017 Chevy Silverado 1500 power outlets

[Clay Autery]

THIS... see my just submitted response for the OCD amateur engineer's
approach to creating a redundant return.

______________________
Clay Autery, KY5G

On 6/27/2017 11:06 AM, Richard gillingham wrote:
> Fuse BOTH leads at the battery...
> 73
> Gil, W1RG
>
>
> ------------------------------------------------------------------------
> *From:* Vic Rosenthal <k2vco.vic at gmail.com>
> *To:* Clay Autery <KY5G at montac.com>
> *Cc:* elecraft at mailman.qth.net
> *Sent:* Tuesday, June 27, 2017 11:53 AM
> *Subject:* Re: [Elecraft] OT: 2017 Chevy Silverado 1500 power outlets
>
> I don't think math or difficult physics is needed. Suppose you connect
> the radio directly to battery, and then suppose the battery to ground
> cable becomes partially or completely disconnected. Finally, suppose
> you then try to start the engine. When the starter solenoid closes,
> some of the high current from the battery negative terminal flows
> through the negative lead to the radio, and then to ground through the
> radio's mounting bracket, the coax to the antenna, etc. The no. 10
> ground wire might have to carry several hundred amps! Lots of things
> can be damaged.
> This is why negative leads should be fused, at least.
>
> Vic 4X6GP
>
> > On 27 Jun 2017, at 18:21, Clay Autery <KY5G at montac.com
> <mailto:KY5G at montac.com>> wrote:
> >
> > Horse puckey!  I DEFY you to prove the physics OR math of that
> > ridiculous statement.
> >
> > ______________________
> > Clay Autery, KY5G
> >
> >> On 6/27/2017 9:55 AM, donovanf at starpower.net
> <mailto:donovanf at starpower.net> wrote:
> >> WARNING!
> >>
> >>
> >> For extremely important safety and fire prevention reasons reasons,
> >> no accessory should ever be connected directly to the negative
> >> terminal of an automotive battery . Just like when charging an
> >> automotive battery, the negative lead of a cable running directly
> >> to the battery should always connect to the engine block and never
> >> directly to the battery.
> >>
> >>
> >> The positive lead must be fused where it connects to the battery.
> >>
> >>
> >> There's an excellent discussion here:
> >>
> >> https://www.w8ji.com/negative_lead_to_battery.htm
> >>
> >>
> >> 73
> >> Frank
> >> W3LPL
> >>
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