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   alt.engineering.electrical      Electrical engineering discussion forum      2,547 messages   

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   Message 1,481 of 2,547   
   J.B. Wood to Gary   
   Re: Closed Delta 120/240V 3-phase servic   
   23 Jun 15 06:52:38   
   
   From: arl_123234@hotmail.com   
      
   On 06/16/2015 10:18 PM, Gary wrote:   
   > replying to phil-news-nospam, Gary wrote:   
      
   > The HV lines aren't the concern here. Many "country" single primary HV is   
   > common with many xformers off 7620V to supply homes with 240/120V.   
   >   
   Hello, and as they say, "everything is relative".  What you labeled as   
   "HV" in your reply is generally considered to be medium voltage (MV) in   
   electric power distribution terminology.  The three (sometimes less than   
   3) wires seen on the cross arms of utility poles (usually up to 34 kV   
   line-to-line) are MV, not HV.  The voltage levels for the MV designation   
   have changed over the years depending on what IEEE and or NEMA standard   
   is being referenced but currently in the US the range is from just under   
   1 kV to 69 kV.  It may be "MV" but it can kill you instantly.  Sincerely,   
      
   --   
   J. B. Wood	            e-mail: arl_123234@hotmail.com   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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