6～35kV交聯(lián)聚乙烯電纜注意事項和技術參數(shù)

1、-635kV交聯(lián)聚乙烯絕緣電力電纜，在施工和使用時必須注意以下事項： (1) 工頻額定電壓U0/U為3.6/6kV26/35kV。 (2) 正常運行時，電纜導體的最高工作溫度：90。 (3) 短路時最長時間不超過5秒，電纜導體的最高溫度不超過250。 (4) 電纜敷設時，環(huán)境溫度應不低于0。 (5) 電纜彎曲半徑：單芯無鎧裝電纜，其彎曲半徑應不小于電纜外徑的20倍；單芯有鎧裝電纜，其彎曲半徑應不小于電纜外徑的15倍；三芯無鎧裝電纜，其彎曲半徑應不小于電纜外徑的15倍；三芯有鎧裝電纜，其彎曲半徑應不小于電纜外徑的12倍。 (6) 為了便于選擇電纜，將系統(tǒng)劃分為以下三類： A類：該系列任一相導體與

2、地或接地導體接觸時，能在1分鐘與系統(tǒng)別離。B類：按照/T8996-1999的規(guī)定，該系統(tǒng)可在單相接地故障時短時運行，時間應不超過1小時。對本局部的電纜，在任何情況下允許不超過8小時的，更長的帶故障運行時間。任何一年接地故障的總持續(xù)時間，應不超過125小時。 C類：包括但不屬于A類、B類的所有系統(tǒng)。 (7)應該認識到，在系統(tǒng)接地故障不能立即自動解除時，故障期間加在電纜絕緣上過高的電場強度，會在一定程度上縮短電纜壽命。 (8) 三相系統(tǒng)用電纜的額定電壓表系統(tǒng)最高電壓Um/kV額定電壓U0/kVA類、B類C類7.23.66.012.06.08.717.58.712.024.012.018.036.0

3、18.0-40.521.026.0 (9) 電纜埋地敷設時，土壤熱阻系數(shù)g=1.0m/W,但尚未考慮電纜長期運行時，由于水份遷移而導致封熱阻系數(shù)升高的現(xiàn)象。 (10) 電纜埋地敷設時，電纜的軸心與地面距離為1000mm。 (11) 多根電纜敷設時，電纜的軸心距離 L=3D。635kV交聯(lián)聚乙烯絕緣電力電纜，主要技術參數(shù)如下： (1) 20時，導體最大直流電阻(/km)標稱橫截面(mm2)銅芯鋁芯標稱橫截面(mm2)銅芯鋁芯1.512.1-950.1930.3202.57.4112.11200.1530.2534.04.617.411500.1240.2066.03.084.611850.099

4、10.164101.833.082400.07540.125161.151.913000.06010.100250.7271.24000.04700.0778350.5240.9695000.03660.0605500.3870.6416300.02830.0469700.2680.4438000.02210.0367 (2) 主要技術性能額定電壓U0/U (kV)0.6/13.6/66/66/108.7/108.7/1512/2018/3021/3526/35局部放電試驗(1.73 U0下)5工頻5分鐘耐壓試驗(kV)3.512.5212130.5426373.5914小時工頻電壓(kV)2

5、.414.4242435487284104絕緣的熱延伸試驗·20015分鐘 20N/cm2載荷下最大伸長率(%)冷卻后最大永久伸長率(%)17515彎曲試驗后局部放電試驗(1.73 U0下)5室溫下tg在U0下測，不大于0.5 U0與2 U0之間tg不大于-40 * 10-420 * 10-42kV下，tg值tg2kV1) 環(huán)境溫度下，不大于2) 最大額定溫度下，不大于-40 * 10-480 * 10-4加熱到使導體比長期工作溫度高5，熱沖擊(±10次)(kV)不擊穿-60757595125170200250 (3)不同環(huán)境因素時,電纜載流量的校正系數(shù)。土壤熱阻系數(shù)(.m

6、/W)影響系數(shù)土壤溫度()導體最高溫度()空氣溫度()導體最高溫度()90809080700.71.1401.161.17101.261.321.411.01.0051.131.14151.221.271.351.20.93101.101.11201.181.221.291.50.84151.061.07251.141.171.222.00.74201.031.04301.091.111.152.50.67251.001.00351.041.061.08-300.960.96401.001.001.00-450.940.930.91-500.890.860.81 (4)相關技術參數(shù)：YJV、Y

7、JLV額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯3.6/6kV1 * 2518.00.261761372291781 * 3519.00.292141662752131 * 5020.50.332561993272561 * 7021.50.383202484003101 * 9524.00.423893024793721 * 12025.50.464483485444221 * 15027.00.515113966114731 * 18529.00.555834566875321 * 24032.50.6168252978

8、96091 * 30034.00.617736008766771 * 40038.00.658846859737561 * 50041.50.69100077510728311 * 63045.00.76111086111669043.6/6kV3 * 2535.00.291461131631273 * 3538.00.301751351941503 * 5041.00.332091622271763 * 7045.00.352612022752153 * 9548.00.393172463312563 * 12053.00.403652833742903 * 15056.30.4541632

9、34193253 * 18561.00.504753684713653 * 24066.00.545574325414203 * 30072.50.586354936074703 * 40079.50.58736570685531YJV22、YJLV22額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯3.6/6kV3 * 2540.50.241451121591233 * 3543.00.261741351891463 * 5046.00.292071602221723 * 7050.00.342561982702093 * 95

10、54.00.353102403222503 * 12058.50.403522743632813 * 15062.50.414013114063153 * 18565.50.444573544563543 * 24072.50.455334135254073 * 30078.00.476064705874553 * 40086.50.49700542662513YJV、YJLV額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯6/6kV6/10kV1 * 2520.50.211771372661751 * 3521.50.23214

11、1662712101 * 5022.50.262582003222501 * 7024.50.293212493953061 * 9525.00.333903034733671 * 12027.00.364493485374171 * 15029.50.395113966034671 * 18531.50.425814506765241 * 24033.50.476795267756011 * 30035.50.517715988666721 * 40039.00.598816839667491 * 50042.50.6599977410698291 * 63047.00.7211058581

12、160899YJV、YJLV額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯6/6kV6/10kV3 * 2541.00.261501161651283 * 3542.50.281811401951523 * 5045.50.302161682301783 * 7050.50.332672072782163 * 9554.50.363232513312563 * 12058.00.403702873732863 * 15062.00.414203254163233 * 18565.50.444773704663613 * 2407

13、1.00.495574325334163 * 30076.00.516284875914583 * 40083.00.56717555659511YJV22、YJLV22額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯6/6kV6/10kV3 * 2544.00.26123951541193 * 3546.10.281491151851433 * 5049.30.301781382181693 * 7053.10.332201702642053 * 9557.20.362682073182463 * 12060.60.403072

14、383602803 * 15064.30.413502724063153 * 18568.10.444003114593573 * 24073.50.494723685334153 * 30078.80.515394216034703 * 40087.40.56638502694546YJV、YJLV額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯8.7/10kV8.7/15kV1 * 2521.60.171651301601201 * 3522.90.192051551901451 * 5024.2<, /TD>0.

15、212451902251751 * 7026.10.243052352752151 * 9527.70.263702903302551 * 12029.30.284303353752901 * 15030.90.314903804253301 * 18532.70.335604354803701 * 24035.10.376655155554351 * 30037.30.407655956304901 * 40041.90.468906957255651 * 50045.40.5210308108256501 * 63049.10.5611909509407458.7/10kV8.7/15kV

16、3 * 2545.40.23123951531193 * 3548.00.251481141831423 * 5051.00.281781382181693 * 7054.80.302461722662063 * 9558.50.322672073182463 * 12061.70.343082393612803 * 15065.30.363352714063153 * 18569.00.413943104613593 * 24074.10.424653635294133 * 30079.10.455284135934643 * 40089.10.49622491682538YJV22、YJL

17、V22額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯8.7/10kV8.7/15kV3 * 2549.20.23126971541193 * 3551.40.251511171841433 * 5056.80.271811412181693 * 7058.50.312251752672073 * 9562.30.322732113182463 * 12066.00.343112423602803 * 15069.60.353532734043133 * 18573.50.394023124563553 * 24078.80.41

18、4733695314143 * 30085.00.465404215984673 * 40094.60.49640503692544YJV62、YJLV62額定電壓標稱橫截面(mm2)鋼帶厚度參考外徑(mm)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯8.7/10kV8.7/15kV1 * 250.225.01441121741351 * 350.226.01741352081621 * 500.227.02091622481921 * 700.229.02562013042361 * 950.230.03142433632821 * 1200.232.03602794133201 *

19、 1500.234.04093174643601 * 1850.537.04703645234051 * 2400.539.05494256024671 * 3000.541.06234836755231 * 4000.545.07125527595881 * 5000.548.08076268446541 * 6300.552.0903700930721YJV、YJLV額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯12/20kV1 * 2523.90.151651301601201 * 3524.90.162051551901

20、451 * 5026.40.182451902251751 * 7028.10.203052352752151 * 9529.90.223702903302551 * 12031.30.244303353752901 * 15033.10.264903804253301 * 18534.70.285604334803701 * 24037.10.316655155554351 * 30039.50.347655956304901 * 40044.10.398906957255651 * 50047.60.4410308108256501 * 63051.30.47119095094074512

21、/20kV3 * 2550.10.22128991551203 * 3552.50.251551201851433 * 5055.50.261801392181693 * 7059.30.282231732672073 * 9563.00.302712103182473 * 12066.20.323122433632823 * 15069.80.333632814173233 * 18573.70.354043154603583 * 24078.60.384713675314143 * 30083.80.405364195964663 * 40093.60.44630496684539YJV2

22、2、YJLV22額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯12/20kV3 * 2555.50.221291001551203 * 3556.30.251561201851443 * 5059.50.261841432171693 * 7063.40.282291772672073 * 9567.30.302752133192473 * 12070.70.323162463632823 * 15074.30.333632814123193 * 18578.40.354083174603573 * 24084.60.38478

23、3725314133 * 30089.70.405464255984663 * 400101.80.44638501686539YJV、YJLV額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯18/30kV1 * 2530.00.101841422171681 * 3531.00.122211722602021 * 5032.60.142451902251751 * 7034.30.163052352752151 * 9536.10.183702853302551 * 12037.50.194253303752901 * 1503

24、9.30.204853754203251 * 18540.90.225554304753701 * 24043.30.246505055554301 * 30045.70.267455806304901 * 40049.10.288706807205651 * 50054.60.3210007908256451 * 63058.40.351160920940740YJV、YJLV額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯18/30kV3 * 2563.00.101711331721333 * 3566.00.12205159

25、2031583 * 5069.50.142461882381853 * 7073.00.162972312882233 * 9576.00.183562763412643 * 12080.00.194073163842983 * 15083.00.204573554273113 * 18587.00.225154004773703 * 24092.00.245974625444223 * 30097.00.266705206034683 * 400104.00.28757586670520YJV22、YJLV22額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空

26、中敷設埋地敷設銅芯鋁芯銅芯鋁芯18/30kV3 * 2568.00.101681301971303 * 3571.00.122011561991543 * 5074.00.142381842331803 * 7078.00.162902252822183 * 9582.00.183482703352593 * 12086.00.193973073782933 * 15090.00.204473474223273 * 18594.00.225053944743673 * 24099.00.245844535344203 * 300104.00.266595116074713 * 400112.0

27、0.28746579682528YJV、YJLV額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯21/35kV1 * 5035.80.132451902251751 * 7037.50.153052352752151 * 9539.50.163702853302551 * 12040.70.174253303752901 * 15042.50.184853754203251 * 18544.10.195554304753701 * 24046.50.216505055554301 * 30048.90.23745580630490

28、1 * 40052.30.258706807205651 * 50057.70.2810007908256451 * 63061.60.31116092094074021/35kV3 * 50770.132491932401863 * 70810.153052372912253 * 95840.163642823432663 * 120870.174143213862993 * 150910.184663614303333 * 185950.195244064793713 * 2401000.216084715474243 * 3001050.236805276064703 * 4001120.25769596676522YJV22、YJLV22額定電壓標稱橫截面(mm2)參考外徑(mm)電容(F/km)電纜允許載流量(A)空中敷設埋地敷設銅芯鋁芯銅芯鋁芯21/35kV3 * 50820.132441892351823 * 70870.152992322852113 * 95910.163572773382623 * 120940.174063143812963 * 150980.184553534253303 * 1851020.195133984773693 * 2401070.215984615474243 * 3001120.236695186