美女胸被狂揉扒开吃奶的网站o_亚洲日韩av中文无码专区_东京热激情无码专区_久久HEZYO久综合亚洲色_欧美成人高清视频_国产精品乡下勾搭老头_欧美一级v片在线播放_成人午夜国产视频_男女猛烈无遮挡免费动态图_亚洲一区国产精品视频

求交聯(lián)電力電纜90℃時(shí)銅導(dǎo)體交流電阻

有公式，與鄰近效應(yīng)系數(shù)和集膚效應(yīng)系數(shù)有關(guān)。

這個可以查標(biāo)準(zhǔn)嘛

R=R90直流*（1+集膚效應(yīng)+鄰近效應(yīng)）（1+屏蔽損耗因數(shù)+鎧裝損耗因數(shù)）<div>損耗因數(shù)可以忽略  鄰近效應(yīng)因數(shù)和電纜的擺放位置有關(guān) </div><div>所以同一個規(guī)格的導(dǎo)體交流電阻是不一樣的  要看是三心還單芯  還要看單芯的擺放方式</div>

	線性膨脹系數(shù)		導(dǎo)體90℃直流電阻		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

能否詳細(xì)介紹介紹

shunvs:

	線性膨脹系數(shù)		導(dǎo)體90℃直流電阻		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

老鐵能發(fā)一份電子檔的么，有些看不全面啊QQ496335641

chen1103:

這個可以查標(biāo)準(zhǔn)嘛

什么標(biāo)準(zhǔn)，標(biāo)準(zhǔn)號提供下

你需要登錄才能發(fā)表，點(diǎn)擊登錄。