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Line 1: '''~~[[Great Britain\|~~British]] Standard Wire Gauge''', ~~or Imperial wire gauge,~~('''SWG''') is a set of wire sizes given by BSBritish_Standards 3737:1964, ~~and~~(now withdrawn). It is ~~generally~~also ~~abbreviated~~known toas: ~~SWG~~Imperial Wire Gauge or British Standard Gauge. Use of SWG sizes has fallen greatly in popularity, but is still used as a measure of thickness in ~~use~~guitar strings and some electrical wire. Cross sectional area in square millimetres is now a more popular size measurement. The current British Standard for metallic materials such as wire and sheet is BS 6722:1986, which is a solely metric standard. [[American wire gauge]] (AWG) is a similar but not quite equivalent numbering scheme. The basis of the system is the ''[[thou]]'' or ''mil'' in US English which is 0.001 inch and is different to the millimetre (mm). No. 7/0, the largest size, is 0.50 inch, 500 thou or 12.7 mm in diameter, and the smallest, No. 50, is 0.001 inch, 1 thou or about 25 µm in diameter. ~~SWG was fixed by [[Order of Council]] [[August 23]] [[1883]]. It was constructed by improving the [[Birmingham Wire Gauge]]. Made legal standard [[March 1]] [[1884]].~~ == Table of British Standard Wire Gauges and diameters == ~~----~~ {\| class="wikitable" style="text-align:center"▼ ~~A table of wire gauges and diameters is shown below <ref>[[LewcoS]] Wire Tables 1962</ref>~~ ▲{\| class="wikitable" \|- ! SWG ! in ! mm ! step \|- \|7/0 \|0.5500 \|12.700 \|0.036"/gauge \|- \|6/0 \|0.464 \|11.786 \|rowspan=2\| 0.032"/gauge \|- \|5/0 Line 26 ⟶ 25: \|- \|4/0 \|0.4400 \|10.160 \|0.028"/gauge \|- \|3/0 \|0.372 \|9.449 \|rowspan=5\| 0.024"/gauge \|- \|2/0 Line 42 ⟶ 43: \|- \|1 \|0.3300 \|7.620 \|- Line 52 ⟶ 53: \|0.252 \|6.401 \|rowspan=3\| 0.020"/gauge \|- \|4 Line 64 ⟶ 66: \|0.192 \|4.877 \|rowspan=4\| 0.016"/gauge \|- \|7 Line 70 ⟶ 73: \|- \|8 \|0.16160 \|4.064 \|- Line 80 ⟶ 83: \|0.128 \|3.251 \|rowspan=4\| 0.012"/gauge \|- \|11 Line 94 ⟶ 98: \|- \|14 \|0.08080 \|2.032 \|rowspan=5\| 0.008"/gauge \|- \|15 Line 114 ⟶ 119: \|- \|19 \|0.04040 \|1.016 \|rowspan=4\| 0.004"/gauge \|- \|20 Line 132 ⟶ 138: \|0.024 \|0.610 \|rowspan=3\| 0.002"/gauge \|- \|24 Line 138 ⟶ 145: \|- \|25 \|0.02020 \|0.5080 \|- Line 144 ⟶ 151: \|0.018 \|0.4572 \|rowspan=2\| 0.0016"/gauge \|- \|27 Line 152 ⟶ 160: \|0.0148 \|0.3759 \|rowspan=2\| 0.0012"/gauge \|- \|29 Line 160 ⟶ 169: \|0.0124 \|0.3150 \|rowspan=9\| 0.0008"/gauge \|- \|31 Line 170 ⟶ 180: \|- \|33 \|0.010100 \|0.2540 \|- Line 190 ⟶ 200: \|- \|38 \|0.~~006~~0060 \|0.1524 \|- Line 196 ⟶ 206: \|0.0052 \|0.1321 \|rowspan=10\| 0.0004"/gauge \|- \|40 Line 226 ⟶ 237: \|- \|47 \|0.~~002~~0020 \|0.0508 \|- Line 236 ⟶ 247: \|0.0012 \|0.0305 \|rowspan=2\| 0.0002"/gauge \|- \|50 \|0.~~001~~0010 \|0.0254 \|}<ref>[http://www.unc.edu/~rowlett/units/scales/wiregauge.html Wire gauge table (U.S./U.K.)] by Russ Rowlett, University of North Carolina at Chapel Hill, 2008</ref> \|} == See also == {{From Wikipedia\|American_wire_gauge}} [[American wire gauge]] [[~~Stubs Iron~~American ~~Wire~~wire ~~Gauge~~gauge]] == References == {{reflist}} [[Category:~~Wire gauges~~Wiring]]