船舶低压电力系统电线电缆的参考载流量

1、精品资料推荐船舶低压电力系统电线电缆的参考载流量-金山电缆船舶低压电力系统电线电缆的参考载流量本载流量摘自GB/T13029船用电缆的选和敷设中第一部分船舶低压电力系统电缆的选择和敷设1.船舶电气设备用阻燃电线载流量：型号：CBV-ZR、CBV-90-ZR、CBV-ZRC、CBV-90-ZRC、CBVR-ZR、CBVR-90-ZR、CBVR-ZRC、CBVR-90-ZRC、表1导体长期允许工作温度60CPVC（一般）绝缘电缆载流量（环境温度45C）芯数123或4芯数123或4标称截卸mm2载流量A标称截卸mm2载流量A18765010589741.51210j870135115952.5171

2、412951651401164221915120190162133629252015022018715410403428185250213175165446382402902472032571605030033528523435877461表2导体长期允许工作温度70CPVC（一般）绝缘电缆载流量（环境温度45C）芯数123或4芯数123或4标称截卸mm2载流量A标称截卸mm2载流量A1109850136115961.5151310701741481232.522181595213181150428251912024520917263732261502842411991052443618532

3、3275226167059492403743192622592776530043236830235112961I791表3导体长期允许工作温度75CPVC（耐热）绝缘电缆载流量（环境温度45C）芯数123或4芯数123或4标称截面mm2载流量A标称截卸mm2载流量A113119501501281051.5171413701901621332.524201795230196161432272212027023018964135281503102642171057484018535029824516766553240415353291251008570300475404332表4导体长期允许工作温

4、度90CPVC（耐热）绝缘电缆载流量（环境温度45C）芯数123或4芯数123或4标称截卸mm2载流量A标称截卸mm2载流量A1161311501841571291.5211716702331981632.52924219528224019743933271203312822316504334150380323266107059491854293653001693806524050843235625122104863005824954073515312910835125105882.天然丁苯绝缘氯丁护套船用电力（软）电缆载流量:型号：CXF、CXFR表5导体长期允许工作温度70C天然-丁苯橡皮

5、绝缘电缆载流量（环境温度45C）芯数123或4芯数123或4标称截卸mm2载流量A标称截卸mm2载流量A1119850141120991.5151811701741481222.522191595210179147429252012024320717063731261502802381961051433618531927122316695948240375319263259177643004313663023511396793.乙丙绝缘氯丁护套船用电力（软）电缆载流量:型号：CEF、CEFR表6导体长期允许工作温度85C乙丙橡皮绝缘电缆载流量（环境温度45C）芯数123或4芯数123或4标称截

6、卸mm2载流量A标称截卸mm2载流量A1161411501801531261.5201714702251911582.5282420952752341934383227120320272224648413415036531025610675747185415353291169077632404904173432512010284300560476392351451231024.电缆载流量修正系数:表7工作系数芯数系数20.853-40.705-60.567-240.4925-420.42>430.35注：考虑到同时工作系数，上述系数可以适当放宽。表8不同环境空气温度时的修正系数导体工作不

7、同环境空气温度，C温度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.电缆的短路电流与电抗值:表9短路温度与短路电流标称截面mm2乙丙橡皮PVC(f)PVC耐热天然-'苯橡皮短路温度，c8525060-15075-16070220时间为1s短路电流，A11461171111431.52181751672142.5364292278357458246644557268747006678571014561166111214291623201866177922862536402915278035733550964081389250025072805830556071457010192816277841000395138321107710

9、564135761201747213992133441714815021840174901668021435185269362157120572264372403494427984266883429630043680351003336042870在选择断路器或熔断器的断开容量时，多数采用I2t的形式，各种电缆的I2t值如表10所示注：其他短路时间的短路电流计算:It=I/（t）A（1/2）式中：It-短路时间为t时的短路电流，A;I-短路时间为1s时的短路电流，A;t短路时间，So表10I2t值标称截卸mm2乙丙橡皮电缆PVC（一般）电缆PVC耐热电缆天然-'苯橡皮电缆12120013

10、60012400204001.54770030600279004590002.513250034000775001275004339200217600198400326400676320048960044640073440010212000013600001240000204000016542720034816003174400522240025132500008500000775000012750000352597000016600000151900002490000050530000003400000031000000510000007010388000066640000607600009

11、996000095191330000122740000111910000184110000120305280000195840000178560000293760000150477000000306000000279000000459000000185725570000465460000423390000698190000240122112000078336000071424000011750400003001908000000122400000011160000001836000000表11船用电缆在频率为50Hz时的电抗值标称截面mm2二芯及二芯电缆或二根单芯非铠装电缆紧靠时铠装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