[NJARC] DC Power in NYC?

[Scott Roberts]

If you have a few spare standard size(not mini), two blade twist lock plugs, I could use a few! Need them for military power stuff...

Scott



--- On Sun, 7/20/08, AMCMATADOR at aol.com <AMCMATADOR at aol.com> wrote:

> From: AMCMATADOR at aol.com <AMCMATADOR at aol.com>
> Subject: Re: [NJARC] DC Power in NYC?
> To: njarc at mailman.qth.net
> Date: Sunday, July 20, 2008, 5:29 PM
> Visit our web site - See http://www.njarc.org
> _______________________________________________
> I Know that certain parts of NYC used DC power well into
> the 1950s,  possibly 
> later. I have a friend who worked in Manhatten at a college
>  uptown. The 
> buildings there were originally DC. Later on AC lines were
> added,  but 
> incandescent lighting, elevators and other loads that did
> not require  the use of 
> transformers, were left on the DC circuits much longer. As
> the  story goes, this 
> proved quite confusing , and resulted in some people
> plugging  transformer powered 
> or AC motor devices into the DC lines. It was established 
> that all AC 
> equipment was to have Hubbell twist lock plugs and all AC 
> receptacles were to be 
> the same. All DC equipment or AC/DC equipment, was 
> equipped with standard 
> parallel blade plugs. Several years ago, my friend was 
> fortunate enough to 
> intercept some trash, and save some equipment, which I
> wound  up with. With the 
> exception of a small AC/DC radio, and a projector with a 
> universal motor. All of 
> the equipment had twist lock plugs still attached. Just  a
> little tidbit of 
> useless info! I have always been curious when DC was
> actually  eliminated from 
> all building receptacles, and lighting. To my knowledge It
> is or  was still 
> supplied for elevators at least until very recently. 
>  
>                             Darren 
> 
> 
> 
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