XPost: uk.tech.broadcast, uk.tech.digital-tv, uk.rec.audio   
   XPost: sci.electronics.repair   
   From: briang1@blueyonder.co.uk   
      
   Its about what you can get from a ringing phone line.   
    Brian   
      
   --   
   Brian Gaff - briang1@blueyonder.co.uk   
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   Blind user, so no pictures please!   
   "Johny B Good"  wrote in message   
   news:op.waogdlbfkd9x7s@fred...   
   > On Sat, 28 Jan 2012 00:28:20 -0000, Dave Plowman (News)   
   >  wrote:   
   >   
   >> In article   
   >> <2a205b71-1531-4680-bc65-37db0eb10880@p13g2000yqd.googlegroups.com>,   
   >>     wrote:   
   >>> n Britain one may readily obtain a "site transformer" which will   
   >>> give what is advertised as 110 volt balanced power. I haven't been   
   >>> there in 20+ years, can any Brits tell me if that's really true or if   
   >>> 120, or more, or less, is actually common? They are used for electric   
   >>> drills and whatnot outdoors. Vintage US gear works fine at 110, but   
   >>> mostly not current stuff.   
   >>   
   >> 110 volt via an isolating transformer is used on building sites etc for   
   >> all power tools. Purely for safety reasons.   
   >>   
   >   
   >  Just for completeness ( I know I'm very late to this party but it's an   
   > important point), Those 110v transformers produce a bi-phase supply of   
   > 55-0-55 Vac. The two lives provide the 110v but the shock hazard wrt   
   > grounding is reduced to a mere 55v which is merely very unpleasant in the   
   > wet if the user happens to provide a path to earth.   
   >   
   >   
   > --   
   > Regards JB Good   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)