電線電纜網(wǎng) > 國(guó)外線纜 > 芯線絞距以及銅線絞距是什么意思啊?（完整版）
芯線絞距以及銅線絞距是什么意思啊? - 無(wú)圖版
ak --- 2008-10-06 16:12:37
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ZHANGTAOC --- 2008-10-06 17:06:23
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也就是一根芯線或單線,旋轉(zhuǎn)一周后,測(cè)量其兩點(diǎn)直線距離,
ZHANGTAOC --- 2008-10-06 17:08:03
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說(shuō)的不是很好,請(qǐng)找些絞線書(shū)籍看一下絞線的理論知識(shí),或直接請(qǐng)教工人
caolaile7 --- 2008-10-06 19:04:03
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ZHANGTAOC:
也就是一根芯線或單線,旋轉(zhuǎn)一周后,測(cè)量其兩點(diǎn)直線距離,
芯線是線芯嗎？線芯絞距和外圍絞距科是不一樣的
ULcable --- 2008-10-06 21:55:10
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Aspecimen of approximately four to six feet in length shall be cut from thesample coil or reel. The specimen shall be tightly secured, at both ends, tothe work surface before the window is cut, to ensure that the conductors cannot untwist. A “window”, exposing the conductor assembly, shall be cut in thejacket, while leaving at least 12 inches (300 mm) of the jacket intact at bothends. The window shall be approximately 1/4 of the circumference in width andapproximately one inch (25 mm) longer than twice the maximum required laylength for the sample. e.g. for a 3-conductor, 18 AWG cord (which has a max.lay of 2-1/4 inches or 57 mm), the window is:
2 (2-1/4) + 1 = approx. 5-1/2 inches long, or
2 (57) + 25 = approx. 139 mm
簡(jiǎn)單地說(shuō)就是在外被上開(kāi)一個(gè)4分之1個(gè)圓的窗口，窗口長(zhǎng)度大概是這種線號(hào)的電線最大允許絞距的兩倍加上25mm，然后量出2個(gè)絞距，除以2，得出實(shí)際絞距。
銅線絞距概念與芯線絞距類似，不同的是指的是芯線內(nèi)的銅絲的絞距，測(cè)量方法也不是窗口法，一般是測(cè)一根銅絲的10個(gè)絞距再平均。
yy2008 --- 2008-10-07 12:40:24
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絞距是芯線或銅線旋轉(zhuǎn)一圈后的直線距離,
或旋轉(zhuǎn)十圈后的直線長(zhǎng)度除以十,為絞距,通常采用此中方法測(cè)量.
專業(yè)制造 --- 2008-10-08 11:00:07
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andywork --- 2010-04-11 19:00:31
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dejialin --- 2010-04-11 21:36:26
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學(xué)習(xí)了
yzwlucky --- 2010-04-12 08:00:42
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銅絲是絞合導(dǎo)體中其中一條銅絲同一方向環(huán)繞導(dǎo)體一周的距離。UL通常是測(cè)量10倍絞距。除以10. 測(cè)試方法就是在導(dǎo)體上剝離一條單絲，用手松開(kāi)單絲，退繞導(dǎo)體10圈，上面有一絞路很清楚的，測(cè)量10個(gè)距離就行。
芯線其實(shí)也一樣，但芯線更好測(cè)量，芯線有顏色，你找一個(gè)單色，同一方向環(huán)繞一圈后這條線出現(xiàn)的距離就是！！可以取平均數(shù)。比銅芯更好測(cè)量。
percy --- 2011-04-14 16:09:15
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mancinic --- 2014-03-21 14:37:56
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厲害