They call it cathodic protection. They put negative on the pipe and + on
the sacrificial anode.
-----Original Message-----
From: Robert
Sent: Monday, April 8, 2019 1:25 PM
To: af@af.afmug.com
Subject: Re: [AFMUG] DC/DC converter question
What Polarity do they apply to pipelines to get iron to stick to them
instead of eroding away?
On 4/8/19 12:08 PM, Steve Jones wrote:
I still have a hard time grasping the -/+ thing, im half moron and 50
percent idiot though. But am I correct that -v keeps devices from
corroding as much?
On Mon, Apr 8, 2019 at 1:53 PM Bill Prince <part15...@gmail.com
<mailto:part15...@gmail.com>> wrote:
+1.
Just had a discussion with someone talking 12V power in RVs, and he
insisted that red was negative and black was "hot". I walked away from
the discussion before we resorted to fisticuffs.
bp
<part15sbs{at}gmail{dot}com>
On 4/8/2019 10:35 AM, ch...@wbmfg.com <mailto:ch...@wbmfg.com> wrote:
> Never trust colors.
>
> -----Original Message----- From: Christopher Tyler
> Sent: Monday, April 8, 2019 11:23 AM
> To: AnimalFarm Microwave Users Group
> Subject: Re: [AFMUG] DC/DC converter question
>
> That was what I thought, thank you all for confirming.
> However, with it connected red+/black-, when our tech flipped the
> breaker it blew out the DC/DC converter. In fantastic order, I
was told.
> So I'm going to have them put a voltmeter to the wires and see
what we
> are getting from the power supply, maybe the output wiring is
wrong.
>
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