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Select a Correct Wire Gauge
Posted on September 3, 2011 by Akita in Tube HandBook
Each cable use in electrical wiring must be able to handle the job assign to them. If the work load is heavier then what they can handle, it may lead to flaming of melting.
Basically, 1 milimeter square of copper wire will be able to handle 3Ampere of current.
You can choose the simple way by selecting the wire guage using the table below
Wire SWG BWG INCH Amp No. (MM ) (MM ) (A) 0 8.23 8.636 0.34 203.20 1 7.62 7.62 0.3 174.19 2 7.01 7.214 0.284 147.42 3 6.401 6.579 0.259 122.92 4 5.893 6.045 0.238 104.18 5 5.385 5.588 0.22 86.99 6 4.877 5.156 0.203 71.36 7 4.47 4.572 0.18 59.94 8 4.064 4.191 0.165 49.55 9 3.658 3.759 0.148 40.14 10 3.251 3.404 0.134 31.71 11 2.946 3.048 0.12 26.04 12 2.642 2.769 0.109 20.94 13 2.337 2.413 0.095 16.38 14 2.032 2.108 0.083 12.39 15 1.829 1.829 0.072 10.04 16 1.626 1.651 0.065 7.93 Wire SWG BWG INCH Amp No. (MM) (MM ) (A) 17 1.422 1.473 0.058 6.07 18 1.219 1.245 0.049 4.46 19 1.016 1.067 0.042 3.10 20 0.914 0.889 0.035 2.51 21 0.813 0.813 0.032 1.98 22 0.711 0.711 0.028 1.52 23 0.61 0.635 0.025 1.12 24 0.559 0.559 0.022 0.94 25 0.508 0.508 0.02 0.77 26 0.457 0.457 0.018 0.63 27 0.417 0.406 0.016 0.52 28 0.376 0.356 0.014 0.42 29 0.345 0.33 0.013 0.36 30 0.315 0.305 0.012 0.30 31 0.295 0.254 0.01 0.26 32 0.274 0.229 0.009 0.23 33 0.254 0.203 0.008 0.19 Wire SWG BWG INCH Amp No. (MM ) (MM ) (A) 34 0.234 0.178 0.007 0.16 35 0.213 0.127 0.005 0.14 36 0.193 0.102 0.004 0.11 37 0.173 * 0.0068 0.09 38 0.152 * 0.006 0.07 39 0.132 * 0.0052 0.05 40 0.122 * 0.0048 0.04 41 0.112 * 0.0044 0.04 42 0.102 * 0.004 0.03 43 0.091 * 0.0036 0.02 44 0.081 * 0.0032 0.02 45 0.071 * 0.0028 0.02 46 0.061 * 0.0024 0.01 47 0.051 * 0.002 0.01 48 0.041 * 0.0016 0.01 49 0.031 * 0.0012 0.00 50 0.025 * 0.001 0.00
