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[问题求助] 求交联电力电缆90℃时铜导体交流电阻

P:2017-04-12 10:30:52

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求交联电力电缆90℃时铜导体交流电阻

loose cable structure - 松套光缆结构 (0) 投诉

P:2017-04-20 14:20:02

2

有公式,与邻近效应系数和集肤效应系数有关。

ultrasonic cleaning equipment - 超声波清洗设备 (0) 投诉

P:2017-05-04 11:17:49

3

这个可以查标准嘛

festoon - 花边形(海底光缆系统的一种拓扑结构) (0) 投诉

P:2017-05-05 14:20:10

4

R=R90直流*(1+集肤效应+邻近效应)(1+屏蔽损耗因数+铠装损耗因数)<div>损耗因数可以忽略  邻近效应因数和电缆的摆放位置有关 </div><div>所以同一个规格的导体交流电阻是不一样的  要看是三心还单芯  还要看单芯的摆放方式</div>

EPTR - ethylene-propylene-terpolymer-rubber乙烯-丙烯-三聚物橡胶 (0) 投诉

P:2017-06-02 15:29:44

5

线性膨胀系数 导体90℃直流电阻 xs ys xp yp Rc
截面 T L T L T L T L T L T L T L
25 0.00393 0.00403 0.000918072 0.00153852 0.37 0.285794166 9.76049E-05 3.47456E-05 0.369970044 0.285794166 6.89837E-05 2.45706E-05 0.91822494 1.538611259
35 0.00393 0.00403 0.000664327 0.001112863 0.434924575 0.336034695 0.000186333 6.64067E-05 0.434924575 0.336034695 0.000157893 5.62957E-05 0.664555779 1.112999351
50 0.00393 0.00403 0.000484538 0.000821826 0.509261695 0.391034402 0.00035022 0.000121763 0.509261695 0.391034402 0.000357642 0.000124447 0.484880986 0.822028442
70 0.00393 0.00403 0.000331526 0.00056797 0.615667368 0.470372712 0.000747865 0.000254905 0.615667368 0.470372712 0.000920791 0.000314407 0.332079203 0.568293653
95 0.00393 0.00403 0.000240994 0.000410272 0.722107585 0.553438022 0.001414538 0.000488433 0.722107585 0.553438022 0.001994421 0.000690969 0.241815438 0.410755876
120 0.00393 0.00403 0.00019509 0.000324371 0.80257771 0.622420261 0.002157233 0.0007812 0.80257771 0.622420261 0.003347942 0.001218402 0.196164306 0.325019914
150 0.00393 0.00403 0.000142684 0.000264113 0.938464321 0.689779641 0.004026878 0.001177961 0.938464321 0.689779641 0.006820528 0.002015567 0.144231438 0.264956051
185 0.00393 0.00403 0.000125597 0.000210264 1.000264127 0.773075763 0.005192181 0.001857553 1.000264127 0.773075763 0.009477451 0.003431025 0.127439817 0.2113764
240 0.00393 0.00403 9.576E-05 0.000160263 1.145546811 0.885500836 0.008905228 0.003194063 1.145546811 0.885500836 0.017555479 0.006424069 0.098293888 0.161803926
300 0.00393 0.00403 7.54859E-05 0.00012821 1.29024432 0.990020031 0.014269227 0.004983561 1.29024432 0.990020031 0.029457947 0.010623574 0.078786706 0.130210991
400 0.00393 0.00403 5.89096E-05 9.97474E-05 1.460534504 1.122416865 0.023258889 0.008212075 1.460534504 1.122416865 0.051286596 0.019048822 0.063301066 0.102466583

compound separation test - 混合物分离试验 (9) 投诉

P:2017-06-02 16:54:30

6

能否详细介绍介绍

incoming air - 进入的空气,进气 (0) 投诉

P:2022-09-19 14:33:39

7

shunvs:

线性膨胀系数导体90℃直流电阻xsysxpypRc
截面TLTLTLTLTLTLTL
250.003930.004030.0009180720.001538520.370.2857941669.76049E-053.47456E-050.3699700440.2857941666.89837E-052.45706E-050.918224941.538611259
350.003930.004030.0006643270.0011128630.4349245750.3360346950.0001863336.64067E-050.4349245750.3360346950.0001578935.62957E-050.6645557791.112999351
500.003930.004030.0004845380.0008218260.5092616950.3910344020.000350220.0001217630.5092616950.3910344020.0003576420.0001244470.4848809860.822028442
700.003930.004030.0003315260.000567970.6156673680.4703727120.0007478650.0002549050.6156673680.4703727120.0009207910.0003144070.3320792030.568293653
950.003930.004030.0002409940.0004102720.7221075850.5534380220.0014145380.0004884330.7221075850.5534380220.0019944210.0006909690.2418154380.410755876
1200.003930.004030.000195090.0003243710.802577710.6224202610.0021572330.00078120.802577710.6224202610.0033479420.0012184020.1961643060.325019914
1500.003930.004030.0001426840.0002641130.9384643210.6897796410.0040268780.0011779610.9384643210.6897796410.0068205280.0020155670.1442314380.264956051
1850.003930.004030.0001255970.0002102641.0002641270.7730757630.0051921810.0018575531.0002641270.7730757630.0094774510.0034310250.1274398170.2113764
2400.003930.004039.576E-050.0001602631.1455468110.8855008360.0089052280.0031940631.1455468110.8855008360.0175554790.0064240690.0982938880.161803926
3000.003930.004037.54859E-050.000128211.290244320.9900200310.0142692270.0049835611.290244320.9900200310.0294579470.0106235740.0787867060.130210991
4000.003930.004035.89096E-059.97474E-051.4605345041.1224168650.0232588890.0082120751.4605345041.1224168650.0512865960.0190488220.0633010660.102466583

老铁能发一份电子档的么,有些看不全面啊QQ496335641

scientific management - 科学管理 (1) 投诉

P:2022-09-19 14:34:15

8

crosstalk meter - 串音测试仪 (0) 投诉

P:2023-02-23 10:54:58

9

chen1103:

这个可以查标准嘛

什么标准,标准号提供下

outer-skin extruding - 外壳层挤出 (0) 投诉

9


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