船舶低壓電力系統(tǒng)電線電纜的參考載流量

1、精品資料推薦船舶低壓電力系統(tǒng)電線電纜的參考載流量-金山電纜船舶低壓電力系統(tǒng)電線電纜的參考載流量本載流量摘自GB/T13029船用電纜的選和敷設(shè)中第一部分船舶低壓電力系統(tǒng)電纜的選擇和敷設(shè)1.船舶電氣設(shè)備用阻燃電線載流量：型號(hào)：CBV-ZR、CBV-90-ZR、CBV-ZRC、CBV-90-ZRC、CBVR-ZR、CBVR-90-ZR、CBVR-ZRC、CBVR-90-ZRC、表1導(dǎo)體長(zhǎng)期允許工作溫度60CPVC（一般）絕緣電纜載流量（環(huán)境溫度45C）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截卸mm2載流量A標(biāo)稱截卸mm2載流量A18765010589741.51210j870135115952.5171

2、412951651401164221915120190162133629252015022018715410403428185250213175165446382402902472032571605030033528523435877461表2導(dǎo)體長(zhǎng)期允許工作溫度70CPVC（一般）絕緣電纜載流量（環(huán)境溫度45C）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截卸mm2載流量A標(biāo)稱截卸mm2載流量A1109850136115961.5151310701741481232.522181595213181150428251912024520917263732261502842411991052443618532

3、3275226167059492403743192622592776530043236830235112961I791表3導(dǎo)體長(zhǎng)期允許工作溫度75CPVC（耐熱）絕緣電纜載流量（環(huán)境溫度45C）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截面mm2載流量A標(biāo)稱截卸mm2載流量A113119501501281051.5171413701901621332.524201795230196161432272212027023018964135281503102642171057484018535029824516766553240415353291251008570300475404332表4導(dǎo)體長(zhǎng)期允許工作溫

4、度90CPVC（耐熱）絕緣電纜載流量（環(huán)境溫度45C）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截卸mm2載流量A標(biāo)稱截卸mm2載流量A1161311501841571291.5211716702331981632.52924219528224019743933271203312822316504334150380323266107059491854293653001693806524050843235625122104863005824954073515312910835125105882.天然丁苯絕緣氯丁護(hù)套船用電力（軟）電纜載流量:型號(hào)：CXF、CXFR表5導(dǎo)體長(zhǎng)期允許工作溫度70C天然-丁苯橡皮

5、絕緣電纜載流量（環(huán)境溫度45C）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截卸mm2載流量A標(biāo)稱截卸mm2載流量A1119850141120991.5151811701741481222.522191595210179147429252012024320717063731261502802381961051433618531927122316695948240375319263259177643004313663023511396793.乙丙絕緣氯丁護(hù)套船用電力（軟）電纜載流量:型號(hào)：CEF、CEFR表6導(dǎo)體長(zhǎng)期允許工作溫度85C乙丙橡皮絕緣電纜載流量（環(huán)境溫度45C）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截

6、卸mm2載流量A標(biāo)稱截卸mm2載流量A1161411501801531261.5201714702251911582.5282420952752341934383227120320272224648413415036531025610675747185415353291169077632404904173432512010284300560476392351451231024.電纜載流量修正系數(shù):表7工作系數(shù)芯數(shù)系數(shù)20.853-40.705-60.567-240.4925-420.42>430.35注：考慮到同時(shí)工作系數(shù)，上述系數(shù)可以適當(dāng)放寬。表8不同環(huán)境空氣溫度時(shí)的修正系數(shù)導(dǎo)體工作不

7、同環(huán)境空氣溫度，C溫度c3540455055606570758085601.291.151.000.82651.221.121.000.870.71一一一一一一701.181.101.000.890.770.63一一一一一751.151.081.000.910.820.710.58一一一一801.131.071.000.930.850.760.650.53一一一851.121.061.000.940.870.790.710.610.5一一901.101.051.000.940.880.820.740.670.580.47一951.101.051.000.950.890.840.770.710.

8、630.550.455.電纜的短路電流與電抗值:表9短路溫度與短路電流標(biāo)稱截面mm2乙丙橡皮PVC(f)PVC耐熱天然-'苯橡皮短路溫度，c8525060-15075-16070220時(shí)間為1s短路電流，A11461171111431.52181751672142.5364292278357458246644557268747006678571014561166111214291623201866177922862536402915278035733550964081389250025072805830556071457010192816277841000395138321107710

9、564135761201747213992133441714815021840174901668021435185269362157120572264372403494427984266883429630043680351003336042870在選擇斷路器或熔斷器的斷開(kāi)容量時(shí)，多數(shù)采用I2t的形式，各種電纜的I2t值如表10所示注：其他短路時(shí)間的短路電流計(jì)算:It=I/（t）A（1/2）式中：It-短路時(shí)間為t時(shí)的短路電流，A;I-短路時(shí)間為1s時(shí)的短路電流，A;t短路時(shí)間，So表10I2t值標(biāo)稱截卸mm2乙丙橡皮電纜PVC（一般）電纜PVC耐熱電纜天然-'苯橡皮電纜12120013

10、60012400204001.54770030600279004590002.513250034000775001275004339200217600198400326400676320048960044640073440010212000013600001240000204000016542720034816003174400522240025132500008500000775000012750000352597000016600000151900002490000050530000003400000031000000510000007010388000066640000607600009

11、996000095191330000122740000111910000184110000120305280000195840000178560000293760000150477000000306000000279000000459000000185725570000465460000423390000698190000240122112000078336000071424000011750400003001908000000122400000011160000001836000000表11船用電纜在頻率為50Hz時(shí)的電抗值標(biāo)稱截面mm2二芯及二芯電纜或二根單芯非鎧裝電纜緊靠時(shí)鎧裝10.1260.163一1.50.1180.1540.1772.50.1100.1420.16340.1060.1340.15460.1000.1260.144100.09570.1190.137160.09210.1120.127250.08850.1070.118350.08710.1010.114500