天津市電纜總廠*分廠提供通信電纜色譜供通信初學(xué)者學(xué)習(xí)使用，通信電纜色譜分序始終共有10種顏色組成，由5種主色和5種次色；5種主色和5種次色又組成25種色普，不管通信電纜對(duì)數(shù)多大，通常大對(duì)數(shù)通信電纜都是按25對(duì)色為一小把標(biāo)識(shí)組成。（圖）HYAC自稱(chēng)式鋼絲線(xiàn)HYAC系列
5種主色：白色、紅色、黑色、黃色、紫色
5種次色：蘭色、桔色、綠色、棕色、灰色
還是舉例說(shuō)明：（（圖）HYAC自稱(chēng)式鋼絲線(xiàn)HYAC系列10對(duì)通信電纜色譜線(xiàn)序表
1對(duì)—白蘭 2對(duì)—白桔 3對(duì)—白綠   4對(duì)—白棕 5對(duì)—白灰
6對(duì)—紅蘭 7對(duì)—紅桔 8對(duì)—紅綠 9對(duì)—紅棕 10對(duì)—紅灰
20對(duì)通信電纜色譜線(xiàn)序表
1對(duì)—白蘭 2對(duì)—白桔 3對(duì)—白綠 4對(duì)—白棕 5對(duì)—白灰
6對(duì)—紅蘭 7對(duì)—紅桔 8對(duì)—紅綠 9對(duì)—紅棕 10對(duì)—紅灰
11對(duì)—黑蘭 12對(duì)—黑桔 13對(duì)—黑綠 14對(duì)—黑棕 15對(duì)—黑灰
16對(duì)—黃蘭 17對(duì)—黃桔 18對(duì)—黃綠 19對(duì)—黃棕 20對(duì)—黃灰
（圖）HYAC自稱(chēng)式鋼絲線(xiàn)HYAC系列