船用电缆的参考载流量

1、船舫低压电力系统电线电缆的参考载流啟创作：欧阳道时间：2021.03.06创作：欧阳道木载流址摘自GB/T13029船用电缆的选择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较流址：型号：CBV-ZRx CBV-9O-ZR. CBV-ZRC、CBV-90-ZRC.CBVR-ZRx CBVR-90-ZR. CBVR-ZRCs CBVR-90-ZRCx表1导体长期允许工作温度60 CPVC （一般）绝缘电缆戦流量（环境温度45 C ）芯数123或4芯数123或4标称截面mm2载流虽A标称截面mm 2载流虽A18765010589741.512108701351159

2、52.5171412951651401164221915120190162133629252015022018715410403428185250213175165446382402902472032571605030033528523435877461表2导体长期允许工作温度70 CPVC （一般）绝缘电缆载流虽（环境温度45 C ）芯数123或4芯数123或4标称截ifti mm2我流址A标称截面mm 2载流虽A1109850136115961.5151310701741481232.52218159521318115042825191202452091726373226150284241

3、199105244361853232752261670594924037431926225927765300432368302351129679表3导体长期允许工作温度75 X?PVC （耐热）绝缘电缆戦流虽（环境温度45 -C ）芯数123或4芯数123或4标称截而mm2銭流址A标称裁面mm2戦流址A113119501501281051.5171413701901621332.5242017952301961614322722120270230189641352815031026421710574840185350298245167665532404153532912510085703004

4、754043323512510588表4导体长期允许工作温度90 -CPVC （耐热）绝缘电缆载流虽（环境温度45 C ）芯数123或4芯数123或4标称截面mm2载流虽A标称截面mm 2载流址A1161311501841571291.5211716702331981632.5292421952822401974393327120331282231650433415038032326610705949185429365300169380652405084323562512210486300582495407351531291082.天然丁苯绝缘氯丁护套船用电力（软）电缆戦流址:型号：CXF、C

5、XFR表5导体长期允许工作温度70 C天然丁苯橡皮绝缘电缆载流虽（环境温度45 C ）芯数123或4芯数123或4标称截面mm 2载流虽A标称截面mm 2载流量A1119850141120991.5151811701741481222.522191595210179147429252012024320717063731261502802381961051433618531927122316695948240375319263259177643004313663023511396793.乙丙绝缘氮丁护套船用电力（软）电缆戦流虽:型号:CEF、CEFR表6导体长期允许工作溫度85 -C乙丙橡皮绝缘

6、电缆载流址（环境温度45 X：）芯数123或4芯数123或4标称截面mm 2载流址A标称截面mm 2戦流址A1161411501801531261.5201714702251911582.5282420952752341934383227120320272224648413415036531025610675747185415353291169077632404904173432512010284300560476392351451231024 电缆载流虽修正系数:表7工作系数芯数系数20.853-40.705-60.567- 240.4925- 420.42430.35注：考虑到同时匸作系数

7、上述系数可以适十放宽。表8不同环境空气温度时的修正系数导体工作温不同环境空气温度，C度93540455055606570758085601.291.151.000.82651.221.121.000.870.71701.181.101.000.890.770.63751.151.081.000.910.820.710.58801.131.071.000.930.850.760.650.53851.121.061.000.940.870.790.710.610.5901.101.051.000.940.880.820.740.670.580.47951.101.051.000.950.890.8

8、40.770.710.630.550.455 电缆的短路电流与电抗值:表9短路溟度与短路电流标称截ifti mm2乙丙橡皮PVC （一般）PVC耐热天然丁苯橡皮短路温度.C852506015075-16070220时间为1S短路电流，A11461171111431.52181751672142.53642922783574582466445572687470066785710145611661112142916232018661779228625364029152780357335509640813892500250728058305560714570101928162778410003951

9、38321107710564135761201747213992133441714815021840174901668021435185269362157120572264372403494427984266883429630043680351003336042870在选择断路器或熔断器的断开容量时.多数采用I 2 t的形式各种电缆的I 2t值如表10所示注：其他短路时间的短路电流计算:It=I/ (t)八(1/2)式中:I卜一短路时间为t时的短路电流,A：I一一短路时间为1S时的短路电流.A：t短路时间.S,表101 2 t值标称戳而mm2乙丙橡皮电缆PVC (一般)电缆PVC耐热电缆天然丁

10、苯橡皮电缆1212001360012400204001.54770030600279004590002.51325003400077500127500433920021760019840032640067632004896004464007344001021200001360000124000020400001654272003481600317440052224002513250000850000077500001275000035259700001660000015190000249000005053000000340000003100000051000000701038800006664

11、0000607600009996000095191330000122740000111910000184110000120305280000195840000178560000293760000150477000000306000000279000000459000000185725570000465460000423390000698190000240122112000078336000071424000011750400003001908000000122400000011160000001836000000表11紺用电缆在频率为50 HZ时的电抗值标称截血mm 2二芯及三芯电缆二或三根单芯电缆紧靠时非铠裝铠装10.1260.1631.50.1180.1540.1772.50.1100.1420.16340.1060.1340.15460.1000.1260.144100.09570.1190.137160.09210.1120.127250.08850.1070.118350.08710.1010.114500.08450.0970.111700.0