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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Standard wire gauge ： ウィキペディア英語版 Standard wire gauge British Standard Wire Gauge is a set of wire sizes given by BS 3737:1964 (now withdrawn), and is generally abbreviated to SWG. It is also known as: 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 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. SWG was fixed by Order of Council August 23, 1883. It was constructed by improving the Birmingham Wire Gauge. It was made legal standard March 1, 1884 by the British Board of Trade. SWG is not to be confused with American Wire Gage which has a similar but not quite interchangeable numbering scheme. The basis of the system is the ''thou'', (or ''mil'' in US English) or . No. 7/0, the largest size, is . (500 thou or ) in diameter, and the smallest, No. 50, is . ( or about ) in diameter. Between each gauge, the weight diminishes by approximately 20%. Because the weight per unit length is related to the area, and therefore the square of the diameter, the diameter diminishes by approximately 10.6%: :$\backslash mbox\; =\; 1-(1-0.2)^\}\; \backslash approx\; 10.6\backslash \%$ ---- A table of wire gauges and diameters is shown below.〔LewcoS Wire Tables 1962〕 The relationship of diameter to gauge is piecewise linear, only approximating a (constant-ratio) exponential curve. ==See also== *American wire gauge *Stubs Iron Wire Gauge *Number 8 wire 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Standard wire gauge」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.