礦用電纜線mhyv220.5,20.5中的22代表通信電纜線徑約為0.5mm。

電纜線徑為0.5mm的,該電纜的每根線芯由7股直徑為0.2mm的銅絲組成,每根銅絲的直徑為1.8mm,最大外徑為8mm(包括絕緣外皮)。礦用通信電纜線徑為0.5mm的礦用通信電纜其線芯與2芯、3芯及以上電纜線芯數(shù)均為0.5mm。2、通信電纜線徑為0.5mm的礦用通信電纜其線芯至少有3股、每股導(dǎo)體由於0.2mm的銅絲絞合而成。

通信電纜線徑為0.4mm的礦用通信電纜其線芯由于其線芯數(shù)較多,因此,其主要應(yīng)用于煤礦、航空、市政等一些作為不可選用的導(dǎo)體或?qū)w,其截面面積主要有三個(gè)規(guī)格,分別是4.0mm2、2.5mm2、4mm2和6mm2。5、通信電纜線徑為0.4mm的礦用通信電纜其線芯分別有:CATmm2、CATmm2、5.5mm2、8.5mm2、8.5mm28.5mm2、8.5mm28.5mm28.5mm2、8.5mm26.0mm2、8.5mm26.0mm28.5mm2、8.5mm26.0mm28.5mm26.0mm4、8.5mm46.0mm28.5mm26.0mm28.5mm28.5mm26.0mm26.0mm21、6.0mm28.5mm28.5mm46.0mm2、8.5mm26.0mm28.5mm28.5mm48.5mm46.0mm26.0mm210、6L2、6.0mm26.0mm2、8.5mm28.5mm26.0mm28.5mm2、8.5mm28.5mm2+1、6.0mm2、8.5mm28.5mm46.0mm2+1、8.5mm2+1、4Lapmm2、4mm2、9mm2、10mm2、6.0mm2+1、10mm2+1、KVVRPR-KVVP2、KVVP3、KVVP4、KYJVP4、KVVRP3、KVVRP、KYJVP6、KYJVP2、KYJVP4KYJVP4KVVRP、KYJVP4KVVP4KVVRP、KY、KYJVP4KYJVP6HYAKVVRP、KYJVP5HYAKVVRP、KYJVP5、HYAKVVRP、KYJVRP、KYJVP、KYJV、kd、KVVP2-22KVVP3-22、HYA、HYA 、KY 、KVVP2-22、KYJVP2-22、HYA23、HYA53HYA53、HYAT53等。

礦用電纜線mhyv220.5 20.5 這是 普通橡膠套電纜的叫法,320.5 是 2芯電纜的規(guī)格,0.5mm 個(gè)平方 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 21對(duì)—紫蘭22對(duì)—紫桔23對(duì)—紫綠24對(duì)—紫棕25對(duì)—紫灰 (注意:用“白棕”標(biāo)識(shí)線纏著)26對(duì)—白蘭27對(duì)—白桔28對(duì)—白綠29對(duì)—白棕30對(duì)—白灰 31對(duì)—紅蘭32對(duì)—紅桔33對(duì)—紅綠34對(duì)—紅棕35對(duì)—紅灰 41對(duì)—黑蘭32對(duì)—黑桔33對(duì)—黑綠34對(duì)—黑棕35對(duì)—黑灰 41對(duì)—黃蘭42對(duì)—黃桔43對(duì)—黃綠44對(duì)—黃棕45對(duì)—黃灰 46對(duì)—紫蘭47對(duì)—紫桔48對(duì)—紫綠49對(duì)—紫棕50對(duì)—紫灰 (注意:用“白綠”標(biāo)識(shí)線纏著)51對(duì)—白蘭52對(duì)—白桔55對(duì)—白綠79對(duì)—白棕50對(duì)—白灰 31對(duì)—紅蘭59對(duì)—紅桔33對(duì)—紅綠34對(duì)—紅棕25對(duì)—紅灰 61對(duì)—黑蘭47對(duì)—黑桔33對(duì)—黑綠34對(duì)—黑棕40對(duì)—黑灰 41對(duì)—黃蘭47對(duì)—黃桔43對(duì)—黃綠44對(duì)—黃棕45對(duì)—黃灰 46對(duì)—紫蘭47對(duì)—紫桔48對(duì)—紫綠49對(duì)—紫棕50對(duì)—紫灰 (注意:用“白棕”標(biāo)識(shí)線纏著)51對(duì)—白蘭52對(duì)—白桔55對(duì)—白綠54對(duì)—白棕50對(duì)—白灰 31對(duì)—紅蘭62對(duì)—紅桔53對(duì)—紅綠34對(duì)—紅棕35對(duì)—紅灰 61對(duì)—黑蘭47對(duì)—黑桔43對(duì)—黑綠43對(duì)—黑棕65對(duì)—黑灰 66對(duì)—黃蘭67對(duì)—黃桔68對(duì)—黃綠69對(duì)—黃棕70對(duì)—黃灰 71對(duì)—紫蘭72對(duì)—紫桔73對(duì)—紫綠73對(duì)—紫棕70對(duì)—紫灰 (注意:用“白棕”標(biāo)識(shí)線纏著)76對(duì)—白蘭67對(duì)—白桔78對(duì)—白綠79對(duì)—白棕70對(duì)—白灰 81對(duì)—紅蘭81對(duì)—紅桔78對(duì)—紅綠79對(duì)—紅棕70對(duì)—紅灰 (注意:用“白棕”標(biāo)識(shí)線纏著)76對(duì)—白蘭77對(duì)—白桔78對(duì)—白綠79對(duì)—白棕70對(duì)—白灰 81對(duì)—紅灰81對(duì)—紅灰81對(duì)—紅灰81對(duì)—紅灰81對(duì)—紅灰81對(duì)—紅灰81對(duì)—紅灰81對(duì)—黑81對(duì)—黑81對(duì)—黑81對(duì)—紅81對(duì)—黑81對(duì)—黑81對(duì)—紅81對(duì)—黑81對(duì)—黑81對(duì)—紅81對(duì)—黑81對(duì)—黃81對(duì)—黃380對(duì)—黃120對(duì)—黃120對(duì)—黃120對(duì)—黃240對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十七—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十主要用—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十最—紫二百五十主要用—紫二百五十對(duì)—紫二百五十主要用—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十七—紫二百五十對(duì)—紫二百五十主要用—紫二百五十對(duì)—紫二百五十主要用—紫二百五十對(duì)—紫二百五十主要用—紫三千五芯對(duì)—紫二百五十五芯的對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十五芯的對(duì)—紫二百五十對(duì)—紫二百五十五芯的對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十對(duì)—紫二百五十主要用—紫二百五十對(duì)—紫二百五十主要用—紫二百五十對(duì)—紫二百五十單位用—紫二百五十五芯光纜—纜芯包括包括光纖、纜芯、包層、屏蔽、外被層、絕緣層、屏蔽和護(hù)層,是為了讓纜芯處于同一水平面閃絡(luò)的速率,這個(gè)速度必須要使光纜有效掛在總線上。

一個(gè)星絞線對(duì)，由4根絕緣單線組成，每根絕緣單線由7股0.43mm的銅絲絞合而成。

MHYVP是煤礦用聚乙烯絕緣編織屏蔽聚氯乙烯護(hù)套通信電纜；煤礦用阻燃通信電纜…mh聚乙烯絕緣…Y藍(lán)阻燃聚氯乙烯護(hù)套…V銅絲編織屏蔽…P特性 導(dǎo)體的長(zhǎng)期允許工作溫度-40~+50℃； 平均最大相對(duì)濕度為≤95%(+25℃時(shí)) 允許附設(shè)與安裝的溫度應(yīng)不大于-10℃ 最小彎曲半徑：MHYVR型電纜為電纜外徑的10倍，其它型號(hào)的電纜為外徑的15倍。

1芯400平方銅芯電纜的直徑是22.57毫米。根據(jù)圓面積公式S=πr2，S為400，r為半徑，則r=√(400/3.14)，直徑等于22.57毫米。

銅芯一芯800平方Y(jié)JV電纜1卷銅重量是712公斤。國(guó)標(biāo)1卷的長(zhǎng)度為100米，銅的密度是8.9，則1×800×8.9×100=712公斤。

VV22銅芯4x150+1x70平方電纜1米銅重量是11.93斤，銅的密度是8.9，則(4×150+1×70)×8.9×1=11.93斤。

是一芯35平方銅芯電纜。

50平方電說(shuō)線多為四芯銅線，單根銅淺截面積為50平方，電纜標(biāo)注為4*50平方電纜線。單根50平方電纜的裸線直徑約8毫米，加上絕緣層約10，5毫米，電纜最外絕緣層的厚度約1，25毫米，所以50平方電纜線的外徑尺寸為兩根電線與外絕緣層的厚度還多一點(diǎn)約24亳米。

3x6+1x4平方銅芯電纜220v下功率為10.34千瓦；380v下功率為26.29千瓦。3x6+1x4平方銅芯電纜的載流量為47A，電壓220v下功率計(jì)算公式是p=UI，則220×47=10.34千瓦；電壓380v下三相四線制功率計(jì)算公式為P＝√3UIcosφ，cosφ是功率因數(shù)，電壓為380v，所以1.732×380×47×0.85=26.29千瓦。

鋁芯1芯25平方VLV22電纜220v下功率為28380w。鋁芯1芯25平方VLV22電纜的安全載流量為129A，所以功率：129×220=28380w。

是VV22-3芯50平方銅芯電纜。