双绞线(Twisted Pairs) 一根双绞线缆线是由数对双绞线组合而成, 每一对双绞线是由两根以绝缘体包覆的铜线对绞 在单位距离内对绞次数越多, 效果越好 * P...
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Cables with twisted pairs are available shielded or unshielded.
采用双绞线的电缆有屏蔽的，也有非屏蔽的。
DC spark testers are often used in cabling operations, sometimes testing 25 twisted pairs within a single electrode.
直流火花机常被用于成缆﹐有时在单个电极中测试25对的电缆。
Twisted pairs: Individual conductors twisted into pairs with varying lay length and with specified color combinations to provide pair identification.
绝缘线对：把单根绝缘线按不同的节距扭绞成对，采用规定的色谱组合，以便识别线对。
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