TLS,Inc. Technical Library -
Cable Amp Ratings
  Here's a chart showing the gauge of cable necessary for certain load/distance combinations. Useful for those times when you need to run that 4th electric 2k from a FOH circuit, or to find out just how lightweight you can go for that pesky practical.
 
   
Rated Load in AMPS
Length
2
3
4
5
6
8
10
12
14
16
18
20
 
25'
  
18
18
18
18
18
18
18
16
16
16
14
12
50'
  
18
18
18
18
16
16
14
14
12
12
12
12
100'
  
18
16
16
14
14
12
12
10
10
10
8
8
150'
  
16
14
14
12
12
10
10
8
8
8
6
6
200'
  
16
14
12
12
10
10
8
8
6
6
6
6
250'
  
14
12
12
10
10
8
8
6
6
6
4
4
300'
  
14
12
10
10
8
6
6
6
6
4
4
4
400'
  
12
10
8
8
6
6
4
4
2
2
2
2
 
Backstage Handbook, Paul Carter
   
 
   
 
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