1、船舫低壓電力系統(tǒng)電線電纜的參考載流啟創(chuàng)作：歐陽道時間：2021.03.06創(chuàng)作：歐陽道木載流址摘自GB/T13029船用電纜的選擇和敷設(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)備用阻燃電線較流址：型號：CBV-ZRx CBV-9O-ZR. CBV-ZRC、CBV-90-ZRC.CBVR-ZRx CBVR-90-ZR. CBVR-ZRCs CBVR-90-ZRCx表1導(dǎo)體長期允許工作溫度60 CPVC （一般）絕緣電纜戦流量（環(huán)境溫度45 C ）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截面mm2載流雖A標(biāo)稱截面mm 2載流雖A18765010589741.512108701351159

2、52.5171412951651401164221915120190162133629252015022018715410403428185250213175165446382402902472032571605030033528523435877461表2導(dǎo)體長期允許工作溫度70 CPVC （一般）絕緣電纜載流雖（環(huán)境溫度45 C ）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截ifti mm2我流址A標(biāo)稱截面mm 2載流雖A1109850136115961.5151310701741481232.52218159521318115042825191202452091726373226150284241

3、199105244361853232752261670594924037431926225927765300432368302351129679表3導(dǎo)體長期允許工作溫度75 X?PVC （耐熱）絕緣電纜戦流雖（環(huán)境溫度45 -C ）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截而mm2銭流址A標(biāo)稱裁面mm2戦流址A113119501501281051.5171413701901621332.5242017952301961614322722120270230189641352815031026421710574840185350298245167665532404153532912510085703004

4、754043323512510588表4導(dǎo)體長期允許工作溫度90 -CPVC （耐熱）絕緣電纜載流雖（環(huán)境溫度45 C ）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截面mm2載流雖A標(biāo)稱截面mm 2載流址A1161311501841571291.5211716702331981632.5292421952822401974393327120331282231650433415038032326610705949185429365300169380652405084323562512210486300582495407351531291082.天然丁苯絕緣氯丁護(hù)套船用電力（軟）電纜戦流址:型號：CXF、C

5、XFR表5導(dǎo)體長期允許工作溫度70 C天然丁苯橡皮絕緣電纜載流雖（環(huán)境溫度45 C ）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截面mm 2載流雖A標(biāo)稱截面mm 2載流量A1119850141120991.5151811701741481222.522191595210179147429252012024320717063731261502802381961051433618531927122316695948240375319263259177643004313663023511396793.乙丙絕緣氮丁護(hù)套船用電力（軟）電纜戦流雖:型號:CEF、CEFR表6導(dǎo)體長期允許工作溫度85 -C乙丙橡皮絕緣

6、電纜載流址（環(huán)境溫度45 X：）芯數(shù)123或4芯數(shù)123或4標(biāo)稱截面mm 2載流址A標(biāo)稱截面mm 2戦流址A1161411501801531261.5201714702251911582.5282420952752341934383227120320272224648413415036531025610675747185415353291169077632404904173432512010284300560476392351451231024 電纜載流雖修正系數(shù):表7工作系數(shù)芯數(shù)系數(shù)20.853-40.705-60.567- 240.4925- 420.42430.35注：考慮到同時匸作系數(shù)

7、上述系數(shù)可以適十放寬。表8不同環(huán)境空氣溫度時的修正系數(shù)導(dǎo)體工作溫不同環(huán)境空氣溫度，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 電纜的短路電流與電抗值:表9短路溟度與短路電流標(biāo)稱截ifti mm2乙丙橡皮PVC （一般）PVC耐熱天然丁苯橡皮短路溫度.C852506015075-16070220時間為1S短路電流，A11461171111431.52181751672142.53642922783574582466445572687470066785710145611661112142916232018661779228625364029152780357335509640813892500250728058305560714570101928162778410003951

9、38321107710564135761201747213992133441714815021840174901668021435185269362157120572264372403494427984266883429630043680351003336042870在選擇斷路器或熔斷器的斷開容量時.多數(shù)采用I 2 t的形式各種電纜的I 2t值如表10所示注：其他短路時間的短路電流計(jì)算:It=I/ (t)八(1/2)式中:I卜一短路時間為t時的短路電流,A：I一一短路時間為1S時的短路電流.A：t短路時間.S,表101 2 t值標(biāo)稱戳而mm2乙丙橡皮電纜PVC (一般)電纜PVC耐熱電纜天然丁

10、苯橡皮電纜1212001360012400204001.54770030600279004590002.51325003400077500127500433920021760019840032640067632004896004464007344001021200001360000124000020400001654272003481600317440052224002513250000850000077500001275000035259700001660000015190000249000005053000000340000003100000051000000701038800006664

11、0000607600009996000095191330000122740000111910000184110000120305280000195840000178560000293760000150477000000306000000279000000459000000185725570000465460000423390000698190000240122112000078336000071424000011750400003001908000000122400000011160000001836000000表11紺用電纜在頻率為50 HZ時的電抗值標(biāo)稱截血mm 2二芯及三芯電纜二或三根單芯電纜緊靠時非鎧裝鎧裝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