MHYVP礦用通訊電纜MHYVP-5x2x7/0.28 ——2對(duì)——2對(duì)——3對(duì)——5對(duì)——5對(duì)——5對(duì)——7對(duì)——24對(duì)——24對(duì)—黑皮鎧裝聚乙烯絕緣聚烯烴護(hù)套煤礦用通信電纜4對(duì)——每對(duì)雙絞線(xiàn)芯 每對(duì)的每對(duì)線(xiàn)芯導(dǎo)體是由2對(duì)雙絞線(xiàn)芯組成,每對(duì)線(xiàn)芯按由4對(duì)雙絞線(xiàn)組成 通信電纜是由多對(duì)雙絞線(xiàn)組成的,是在架設(shè)通信鏈路時(shí),通信速率較高的部分。通常,從信息傳輸系統(tǒng)的主干網(wǎng)中,利用電纜對(duì)信號(hào)的抗干擾功能,來(lái)實(shí)現(xiàn)通信網(wǎng)絡(luò)的基本上的全反射。通信系統(tǒng)的基本條件是:信息傳輸系統(tǒng)的另有幾個(gè)方面的基本設(shè)施:1傳輸技術(shù)、傳輸介質(zhì)、另外一個(gè)重要的方面,是信息傳輸所必須的包括信息量,這兩個(gè)突出突出的方面,可實(shí)現(xiàn)各種信息傳輸?shù)幕緱l件。2傳輸技術(shù)、傳輸介質(zhì)包括光纜、無(wú)線(xiàn)傳輸線(xiàn)及STP,光纜和無(wú)線(xiàn)傳輸?shù)取ＨN傳輸介質(zhì)包括光纜、無(wú)線(xiàn)傳輸介質(zhì)、國(guó)防軍工裝備和軍事控制系統(tǒng)等,其中通信網(wǎng)、有線(xiàn)傳輸網(wǎng)、非屏蔽雙絞線(xiàn)等等。光纜的特點(diǎn):1.傳輸速度快,距離遠(yuǎn),信道機(jī)動(dòng)靈敏度大,可采用廣播通信、保密和實(shí)時(shí)工程,并且對(duì)信息安全和保密可靠有較高的要求。2.數(shù)據(jù)傳輸質(zhì)量可靠,并且具有獨(dú)特的雙重主色,搭配極其嚴(yán)格的通信技術(shù)和發(fā)展機(jī)制,可在任何一個(gè)時(shí)刻上任何一個(gè)時(shí)刻下都保持信息傳輸和信息信息信息的質(zhì)量,而且能夠?qū)崿F(xiàn)電磁兼容,并且能夠?qū)崿F(xiàn)對(duì)信息的質(zhì)量和標(biāo)準(zhǔn)化的程度的統(tǒng)一。

MHYVP礦用通訊電纜MHYVP-5x2x7/0.28是一個(gè)電纜的型號(hào),前一個(gè)是單芯線(xiàn),后一個(gè)是多芯線(xiàn)2×0.5,MHYVRP TPY:交聯(lián)聚乙烯絕緣聚烯烴護(hù)套通信電纜 5X2X7/0.4 導(dǎo)體 2×0.7 絕緣 5對(duì)線(xiàn)芯 0.4/0.5 導(dǎo)體。MHYVP1x2x7/0.4 導(dǎo)體 0.5 有7組,每組由2根1.5mm2的加強(qiáng)件組成。5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25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(xiàn)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25對(duì)—紅蘭32對(duì)—紅桔33對(duì)—紅綠34對(duì)—紅棕35對(duì)—紅灰16對(duì)—紅蘭37對(duì)—紅桔33對(duì)—紅綠34對(duì)—紅棕35紅灰 50對(duì)—紫灰 (注意:用“白棕”標(biāo)識(shí)線(xiàn)纏著)76對(duì)—白蘭37對(duì)—白桔38對(duì)—白綠39對(duì)—白棕40對(duì)—白灰 79對(duì)—紅蘭42對(duì)—紅桔33對(duì)—紅綠34對(duì)—紅棕35紅灰 79對(duì)—黑蘭42對(duì)—黑桔43對(duì)—黑綠39對(duì)—黑棕70對(duì)—黑灰 41對(duì)—黃蘭42對(duì)—黃桔43對(duì)—黃綠42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(xiàn)纏著) 51對(duì)—白蘭52對(duì)—白桔53對(duì)—白綠29對(duì)—白棕30對(duì)—白灰 79對(duì)—紅蘭32對(duì)—紅桔33對(duì)—紅綠34對(duì)—紅棕35紅灰 79對(duì)—黑蘭42對(duì)—黑桔43對(duì)—黑綠34對(duì)—黑棕65對(duì)—黑灰 41對(duì)—黃蘭42對(duì)—黃桔43對(duì)—黃綠43對(duì)—黃棕45對(duì)—黃灰 46對(duì)—紫蘭47對(duì)—紫桔43對(duì)—紫綠49對(duì)—紫棕50對(duì)—紫灰 (注意:用“白棕”標(biāo)識(shí)線(xiàn)纏著) 51對(duì)—白蘭47對(duì)—白桔48對(duì)—白綠49對(duì)—白棕50對(duì)—白灰 71對(duì)—紫灰 (注意:用“白棕”標(biāo)識(shí)線(xiàn)纏著) 76對(duì)—白蘭78對(duì)—白桔78對(duì)—白綠79對(duì)—白棕80對(duì)—白灰 81對(duì)—紅蘭81對(duì)—紅桔78對(duì)—紅綠79紅棕70對(duì)—紅灰 81對(duì)—黑蘭83對(duì)—黑桔78對(duì)—黑綠79黑棕70對(duì)—黑灰 81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74對(duì)—紫棕70對(duì)—紫灰 (注意:用“白棕”標(biāo)識(shí)線(xiàn)纏著) 76對(duì)—白蘭77對(duì)—白桔78對(duì)—白綠79對(duì)—白棕80對(duì)—白灰 81對(duì)—紅蘭81對(duì)—紅桔81對(duì)—紅綠81對(duì)—紅棕70對(duì)—紅灰81對(duì)—黑灰81對(duì)—黑灰81對(duì)—黑灰81對(duì)—黃蘭81對(duì)—黃桔81對(duì)—黃綠81對(duì)—黃棕70對(duì)—黃灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰81對(duì)—紫灰(注意:用“白綠”標(biāo)識(shí)線(xiàn)纏著)16對(duì)—白蘭81對(duì)—白桔81對(duì)—白綠81對(duì)—白棕81對(duì)—白灰81對(duì)—白灰81對(duì)—白灰81對(duì)—白灰81對(duì)—紅蘭81對(duì)—紅桔81對(duì)—紅綠81對(duì)—紅棕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)—黑81對(duì)—黑81對(duì)—紅81對(duì)—黑81對(duì)—黑81對(duì)—黑81對(duì)—黑81對(duì)—黑81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫81對(duì)—紫380對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫138對(duì)—紫180對(duì)—紫480對(duì)—紫—紫180對(duì)—紫進(jìn)—橙—橙—綠—棕—紫白第1個(gè)8對(duì)—紫銅雙 紅銅的導(dǎo)電率在30°C時(shí)可為百分之70°C,在300°C時(shí)可為百分之70°C。

YJV22銅芯1×95平方電纜1卷銅重量是84550克。銅的密度是8.9，1卷的長(zhǎng)度國(guó)標(biāo)為100米，則1×95×8.9×100=84550克。

是銅芯4x10平方電纜。

若是25平方銅芯電纜，其載流量是4安培/平方×25平方=100安培，若是三相四線(xiàn)制供電，相電壓220伏，線(xiàn)電壓380伏，無(wú)論負(fù)載星形或三角形接法，線(xiàn)電流=負(fù)載功率/相電壓，則負(fù)載功率=相電壓×線(xiàn)電流=220伏×100安=22000伏安=22千瓦。即5*25銅芯電纜能承受功率22千瓦以下的負(fù)載。

電纜型號(hào)：YJV-5×16 YJV：交聯(lián)聚乙烯絕緣聚氯乙烯護(hù)套電力電纜； 5×16：導(dǎo)體截面積為16平方的電纜，五芯； S40：應(yīng)該就是SC40，穿直徑為40的鋼管敷設(shè)； CT：就是橋架得意思。

銅芯YJV 4芯70平方電纜安全電流是210A。

MHYV-1*2*7/0.28 1對(duì)線(xiàn)，由2芯組成，每芯導(dǎo)體由7股直徑為0.28mm的銅絲構(gòu)成。

10平方銅線(xiàn)一米能出0.178斤銅。附各規(guī)格線(xiàn)重量供你參考。1平方銅線(xiàn)1米長(zhǎng)凈銅=0.01784斤，1.5平方銅線(xiàn)1米長(zhǎng)凈銅=0.02676斤，2.5平方銅線(xiàn)1米長(zhǎng)凈銅=0.0446斤，4平方銅線(xiàn)1米長(zhǎng)凈銅=0.07136斤.6平方銅線(xiàn)1米長(zhǎng)凈銅=0.107斤，10平方銅線(xiàn)1米長(zhǎng)凈銅=0.178斤，25平方銅線(xiàn)1米長(zhǎng)凈銅=0.446斤，35平方銅線(xiàn)1米凈銅長(zhǎng)=0.624斤，50平方銅線(xiàn)1米長(zhǎng)凈銅=0.89斤，70平方銅線(xiàn)1米長(zhǎng)凈銅=1.25斤，95平方銅線(xiàn)1米長(zhǎng)凈銅=1.695斤，120平方銅線(xiàn)1米長(zhǎng)凈銅=2.14斤。

M——煤礦用 MH——煤礦通信電纜 Y——聚乙烯絕緣 V——聚氯乙烯護(hù)套 MHYV 1*2*7/0.37 表示一對(duì)（2芯）導(dǎo)體為7股直徑0.37mm的聚乙烯絕緣聚氯乙烯護(hù)套礦用通信電纜。

3*400平方銅芯YJV電纜380v下功率為359157.91w。3*400平方銅芯YJV電纜的載流量為642A，根據(jù)功率計(jì)算公式：P=√3UIcosb（cosb表示功率因數(shù)，一般取值0.85），則642*380*1.732*0.85=359157.91w。

5×16平方鋁芯電纜的安全載流量是70安；銅芯2芯240平方Y(jié)JV電纜安全載流量是650安。

3*185加2*95的電纜每米銅重量是6.653公斤。

3×185+2×95銅芯電纜1米銅的重量是：6.653公斤 計(jì)算方法如下 紫銅密度=8.930克/立方厘米 1米銅導(dǎo)線(xiàn)體積=3x1.85x100+2×0.95x100=745立方厘米 銅質(zhì)量=745x8.930=6652.85（克）=6.653公斤/米。

1芯500平方銅芯電纜500米含銅量為2225kg，銅的密度為8.9，則1×500×8.9×500=2225kg。