XPost: uk.tech.broadcast, uk.tech.digital-tv, uk.rec.audio   
   XPost: sci.electronics.repair   
   From: G6JPG@soft255.demon.co.uk   
      
   In message <4f25d1d8.46937643@news.eternal-september.org>, Don Pearce   
    writes:   
   >On Sun, 29 Jan 2012 20:48:39 +0000, "J. P. Gilliver (John)"   
   > wrote:   
   >   
   >>(I am not on either side in the argument between Jerry and others: I   
   >>live in UK, but still find ring mains odd.)   
   >   
   >Why do you find ring mains odd? Once you have daisy chained all the   
   >sockets it is an extremely sensible idea to complete the loop back to   
      
   If you happen to have laid them out in a ring manner anyway, yes.   
      
   >the distribution board. For the cost of a few feet of cable, you have   
   >halved both the effective resistance of the mains and the distance to   
   >the furthest socket. I can't imagine a single reason not to do it.   
   >   
   >d   
      
   I can see the halving of the resistance (well, at the most remote point   
   anyway), but not the halving of the distance.   
      
   I think maintenance (I mean when modifying, not just general wear and   
   tear): most extras added to ring mains are spurs. (Also, instinctively,   
   it's easier to know when one is isolated with a spur, though that   
   shouldn't be done that way.)   
   --   
   J. P. Gilliver. UMRA: 1960/<1985 MB++G.5AL-IS-P--Ch++(p)Ar@T0H+Sh0!:`)DNAf   
      
   The summit of Everest is marine limestone.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)