裸导体的长期允许载流量及其校正系数.docx

1、裸导体的长期允许载流量及其校正系数附录三裸导体的长期允许载流虽及其校正系数附表3J钢芯铝绞线长期允许载流虽（A）导线型号最高允许温度（C）+70+80LGJ-1080LGJ-16105108LGJ-25130138LGJ-35175183LGJ-50210215LGJ-70265260LGJ-95330352LGJ-95(1)317LGJ-120380401LGJ-120(1)351LGJ-150445452LGJ-185510631LGJ-240610613LGJ-300690755LGJ-400835840LGJQ-150450435LGJQ-185505518LGJQ-240605651

2、LGJQ-300690708LGJQ-300(l)721LGJQ-400825836LGJQ-400(l)857LGJQ-500845932LGJQ-60010501047LGJQ-70012201159LGJQ-150450408LGJQ-185515539LGJQ-240610739LGJQ-300705758LGJQ-400850681注1.最高允许温度十70C的载流虽，基准环境温度为十25C.无口照。2最高允许温度+8（TC的载流呈，系按基准环境温度为+25C、口照0.1V/cm2、风速0.5m/s、海拔1000m, 辐射散热系数及吸热系数为0.5条件计算的。3.某些导线有两种绞合结构

3、，带者铝芯根数少（LGJ型为7根，LGJQ型为24根），但每根铝芯截面较大。附表3-2扩径导线及铝合金线主要技术参数及长期允许载流虽项目LGKK-300扩径钢芯铝绞线LGKK-600 铝钢扩径空芯导线LGKK-900LGKK-1400LQJQT-1400 特轻型铝合金线截而 (nun2)铝301587906.41387.81389.6钢7249.584.83106.0134.3总372636991.231198.81533.8外径(mm)27.451.049.057.051.0拉断力(N)143000152000209000295000336000弹性系数(N/mm2)865007300059

4、9005920057300线胀系数(丄/c)18.2x10 18.9x10-20.4x10-20.8x10-20.4x10-2O3CI 流电 01( Q /KM)0.1000.050S0.033170.021630.012136导线截流呈(A)738.991204.671270211663单位重虽(kg，km)14202690362061204982注 载流量系按最高允许温度十80G基准环境温度十25C(后三种导线为+40C), 口照0.1W/cm2,R速0.5ms, 辐射散热系数与吸热系数为0.9条件计算的。表33矩形铝导体长期允许载流虽(A)导体尺寸 hxb nmixmin单条双条三条三条

5、平放轻放平放轻放平放轻放平放轻放40X448050340X554250250X458661350X5661692140915471866211163X6.3910952162317742113237963X810381085182519942381266563X101168122117241892221125052558341120X8.31128117S19462131249128092683381720X81274133021752373277421143107422220X1014271400205422532633296530324043100X63137114302298251829

6、33331133594479100X815421609255827185151357833824829100X1017281803244526S020743490352547001S5X6.316741744272529823375381338475120125X816761955300532823725419442255633125X1020892177注1载流量系按最高允许温度+700基准环境温度十250无风、无口照条件计算。2.导体尺寸中，h为宽度，b为厚度。3.当导体为四条时，平放.竖放第2、3片间距离皆为50mim附发3-4槽形0导体长期允许披K及计算用数据裁面尺寸双叭 体如导休C

7、3C Jt Tn4_*LL-JrLJ双Wfi加耐拭许斫後m!糸谧w,OrV，l&Wt? 性輕 CIO4；ett粋帥糸获我面1S 性矩Fr(crp1r crrt)戟面慈 陷， “mJtet? 性矩G. cStt3i*力矩 s”双砂建 呻色线子 河距孜4TF实子何距hbcT(A)54&1040htl：M0O2 酣6.21,914443.&2.tl25,J892.9314.153队5G90kt2S3.IT佥0,45J4A53.12.40.11132.R51&.47R1U100454,53150127404.5114.522.JH3.74H.8143a .06如8205IKS10Q少6BZVX91 畑

8、&sn6.fl1B.51JT27皿J了2紺3.853&2Q31Z31255e.siO2740la$9.5371.5507dOd异JtJ4204.8fiA23S曲U0657)6坳b12$S6MI4-?橋1-sr?4SAOMT12UDG098SS2150tn308124B801.10$dGOD25144)221070as023C0GA15&红3147仙W148S70l.U$40S$42T$炉19307.S542242207.0352桃1ST：0rJ2u80901.H7MOO4戳面系数W(cm1)nIcD+ 700+ 80*0$3仙2州5725B5IL轴2倔& 4 952%712ZM5.300 51)/453714.21l.fll16W545 $9124D1?727却佔2U9-70/641413U11血土i.sr35.555419001545lTt32$ 100/9(11+1235020545IM9256!)2217413.72221J837?如94.07新於 13M1L627 W85IL54 心 150/LSfl3U0注L最高允许温度+70-C,系按基准环境温度十25C、无风、无口照、辐射散热系数与吸热系数为 0.5、不涂漆条件计算。2最高允许温度+80C的载流呈:，系按基准环境温度十25C、口照0.1W/cm2.风速0.5m/s、海拔 1