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   sci.electronics.basics      Elementary questions about electronics      72,318 messages   

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   Message 71,394 of 72,318   
   Bob Engelhardt to Peter Percival   
   Re: Current vs. wire gauge   
   10 Aug 19 09:27:09   
   
   From: BobEngelhardt@comcast.net   
      
   On 8/10/2019 6:51 AM, Peter Percival wrote:   
   > Peter Percival wrote:   
   >> What current can 18AWG wire carry?  And, more usefully, is there a   
   >> table somewhere giving this info for all the usual gauges?   
   >   
   > To answer my own question -   
   >   
   > https://en.wikipedia.org/wiki/American_wire_gauge#Tables_of_AWG_wire_sizes   
   >   
   > 10A, apparently.   
   >   
      
   I'm a bit confused: that table has ampacity at 3 different temperatures   
   (60, 75, & 90C) - does that mean that at the current given, the wire   
   will heat to that temperature?  If so, an insulation rating of 20C &   
   ambient 30C (50C insulation rating) isn't consistent with the wire being   
   60, 75, or 90 is it?  As I said: confused.   
      
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