[TowerTalk] Long rotor cable run

[Barrie G. Britton]

Somebody wrote:

> As a rough rule of thumb, two wires together moves you about a
> notch.  Thus, two #14 is approximately one #12, two #12 is approximately
> one #10, and so forth.
> 

This is a bit conservative.  #14 AWG is rated for 15 Amps; thus
two number 14 will carry 30 Amps, which is the rating of a single
#10 AWG.  The rule is: two wires of the same size are equal to 
one wire which is two sizes larger.

  2  #20  (5 Amps)   equals  1  #16  (10 Amps)
  
  2  #18  (7.5 Amps) equals  1  #14  (15 Amps)

  and so on.

Barrie, W6DX

--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm