[Boatanchors] 2nd Newbie Q

[D C _Mac_ Macdonald]

Okay, I surrender!   😏
 
I'll admit I haven't been "inside" this stuff in many years. It just seemed a bit odd to me. 
 
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* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* k2gkk hotmail com * 
* Oklahoma City, OK * 
* USAF & FAA (Ret.) * 
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> Date: Thu, 11 Sep 2014 11:34:38 -0400
> To: k2gkk at hotmail.com; brianclarke01 at optusnet.com.au; boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] 2nd Newbie Q
> From: boatanchors at mailman.qth.net
> 
> A-C Mains (electrical) practice has always (at least since the 30's) been 
> generally opposite to standard electronics practice, except for red, which is 
> hot in both cultures.  Look for example in any Command Set (the generic 
> term, not the AAF's function term) chassis and you will see black (or bare) for 
> virtually all ground leads of any sort and black not usually used for 
> anything else.  Generally the same in most US built sets.  It's just something 
> that "you know" and don't conciously even think about.  So using white for 
> Common would be contrary to common practice.
> 
> In a message dated 09/11/2014 10:00:33 AM Central Daylight Time, 
> k2gkk at hotmail.com writes: 
> > I believe that your recommendation (in two-pair cables) of using Black 
> > for the Common and White for the "Hot" runs counter to normal AC mains 
> > practice for "polarity" and is likely to cause confusion and MAY result in 
> > negative safety aspects. Otherwise, I understand your points.