地面架空电力线路、井下高压电缆选择计算表

1、表74 1 地面架空电力线路经济电流密度表年最大负荷利用小时（h）经济电流密度（A/mm2）铝 线钢 芯 铝 线3000以下1.651.65300050001.151.155000以上0.90.9 表1032 井下高压电力电缆经济电流密度表年最大负荷利用小时（h）经济电流密度（A/mm2）铜 芯 电 缆铝 芯 电 缆100030002.51.93300050002.251.735000以上2.01.54表74 2 裸铜、铝、钢芯铝线载流量表铜 线铝 线钢 芯 铝 线导线型号载流量（A）导线型号载流量（A）导线型号载流量（A）屋外屋内屋外屋内屋外屋内TJ-109560TJ-107555TJ-16

2、130100TJ-1610580TJ-25180140TJ-25135110TGJ-25135TJ-35220175TJ-35170135TGJ-35170TJ-50270220TJ-50215170TGJ-50220TJ-70340280TJ-70265215TGJ-70275TJ-95415340TJ-95325260TGJ-95335TJ-120485405TJ-120375310TGJ-120380TJ-150570480TJ-150440370TGJ-150445TJ-185645550TJ-185500425TGJ-185515TJ-240770650TJ-240610TGJ-24

3、0610TGJ-300700表74 5 LGJ型钢芯铝线的电阻和电抗导线型号LGJ10LGJ16LGJ25LGJ35LGJ50LGJ70LGJ95LGJ120LGJ150LGJ185LGJ240LGJ300LGJ400电 阻（/km）2.7741.9261.2890.7960.6090.4320.3150.2550.2110.1630.1300.0940.076线间几何均距（m）感 应 电 抗 （/km）1.00.4000.3870.3740.3590.3511.250.4140.4010.3880.3730.3651.50.4250.4120.4000.3850.3760.3640.3530

4、.3470.3402.00.4450.4300.4180.4030.3940.3820.3710.3650.3582.50.4570.4440.4320.4170.4080.3960.3850.3790.3720.3650.3573.00.4690.4560.4430.4290.4200.4080.3970.3910.3840.3770.3693.50.4780.4660.4530.4380.4290.4170.4060.4000.3980.3860.3780.3710.3624.00.4870.4740.4610.4460.4370.4250.4140.4080.4010.3940.3860

5、.3800.3714.50.4330.4220.4160.4090.4020.3940.3870.3785.00.4400.4290.4230.4160.4090.4010.3940.3895.50.4460.4350.4290.4220.4150.4070.3990.3916.00.4130.4050.3976.50.4100.4027.00.4140.4067.50.4180.4108.00.4220.414表74 7 380V架空线路单位负荷矩时电压损失百分数（%/kW-km）导 线 型 号COS0.70.750.80.850.90.951.0LJ-161.6241.590.561.53

6、21.491.451.37LJ-251.131.0971.0641.0341.00.9650.887LJ-350.8750.8330.8120.7810.750.7310.637LJ-500.6710.640.6110.5820.5510.5170.443LJ-700.5390.5090.480.4520.4240.390.318LJ-950.450.420.3920.3650.3370.3040.235LJ-1200.3960.3670.340.3140.2860.2540.187LJ-1500.3490.3210.2950.2690.2420.2110.145LJ-1850.3160.28

7、90.2640.2380.2120.1820.118表74 8 6kv架空线路单位负荷矩时电压损失百分数（%/MW-km）导 线 型 号COS0.80.850.90.950.981.0LJ-166.36.166.015.855.715.50LJ-254.354.214.073.903.773.56LJ-353.353.213.072.902.772.56LJ-502.572.432.292.131.991.78LJ-702.071.931.791.631.491.26LJ-951.741.601.461.291.160.95LJ-1201.541.411.261.100.970.75LJ-15

8、01.381.241.100.930.800.58LJ-1851.261.130.980.820.690.47LJ-2401.161.020.880.720.580.37表74 9 10kv架空线路单位负荷矩时电压损失百分数（%/MW-km）导 线 型 号COS0.80.850.90.950.981.0LJ-162.2652.2162.1642.1052.0571.98LJ-251.5651.5161.4641.4051.3571.28LJ-351.2051.1561.1041.0450.9970.92LJ-500.9250.8760.8240.7650.7170.64LJ-700.7450.

9、6960.6440.5850.5370.46LJ-950.6250.5760.5240.4650.4170.34LJ-1200.5550.5060.4540.3950.3470.27LJ-1500.4950.4460.3940.3350.2870.21LJ-1850.4550.4060.3540.2950.2470.17LJ-2400.4170.3680.3160.2570.2090.132表74 10 35kv架空线路单位负荷矩时电压损失百分数（%/MW-km）导 线 型 号COS0.80.850.90.950.981.0-0.98-0.95LGJ-350.0940.08960.08520.

10、08010.07610.06940.06280.0586LGJ-500.07760.07340.06890.06390.05970.05310.04640.0423LGJ-700.0620.05780.05320.04840.04420.03760.03090.0264LGJ-950.05140.04720.04270.03780.03360.0270.02030.0162LGJ-1200.04650.04240.03780.03280.02860.0220.01540.0113LGJ-1500.04160.03740.03300.02780.02380.01720.01050.0064LGJ

11、-1850.03830.03420.02970.02460.02050.01390.00730.0031LGJ-2400.03530.0310.02660.02150.01740.01080.00420.0004LGJ-3000.03330.0290.02460.01950.01540.00870.0021-0.002LGJ-4000.03120.02690.02240.01750.01320.00670.0002-0.0042表74 13 380V三相架空线路允许负荷及负荷矩（COS=0.9）导线型号允许负荷全线电压损失百分数（U%）为下列数值时的负荷矩（kW-km）电流（A）功率（kw）1

12、2345678910LJ-16105620.671.342.012.683.364.034.705.376.046.71LJ-25135801.002.003.004.005.006.007.008.009.0010.00LJ-351701001.332.674.005.336.678.009.3310.5612.0013.33LJ-502151271.823.635.457.269.0810.8912.7114.5216.3418.15LJ-702651572.364.727.089.4411.8014.1616.5218.8821.2423.60LJ-953251932.975.938.9

13、011.8714.8417.8020.723.7426.7029.67LJ-1203752223.506.9910.4914.9917.4820.9824.4827.9731.4734.97LJ-1504402614.138.2612.4016.5320.6524.7928.9333.0637.1941.32LJ-1855002964.729.4314.1518.8723.5928.3033.0237.7442.4547.17表74 14 6kv三相架空线路允许负荷及负荷矩（COS=0.9）导线型号允许负荷全线电压损失百分数（U%）为下列数值时的负荷矩（MW-km）电流（A）功率（MW）123

14、45678910LJ-161050.980.1660.3330.4990.6660.8320.9981.1651.3311.4981.664LJ-251351.260.2460.4910.7370.9831.2291.4741.721.9662.2112.457LJ-351701.590.3260.6510.9771.3031.6291.9542.282.6062.9313.257LJ-502152.010.4370.8731.311.7472.1842.623.0573.4943.934.367LJ-702652.480.5591.1171.6762.2352.7943.3523.9114.

15、475.0285.587LJ-953253.040.6851.372.0552.743.4254.1094.7945.4796.1646.849LJ-1203753.510.7941.5872.3813.1753.9694.7625.5566.357.1437.937LJ-1504404.120.9091.8182.7273.6364.5465.4556.3647.2738.1829.091LJ-1855004.681.022.043.064.085.106.127.148.169.1810.20LJ-2406105.711.142.273.414.555.686.827.959.0910.2

16、311.36表74 15 10kv三相架空线路允许负荷及负荷矩（COS=0.9）导线型号允许负荷全线电压损失百分数（U%）为下列数值时的负荷矩（MW-km）电流（A）功率（MW）12345678910LJ-161051.640.4620.9241.3861.8482.3112.7733.2353.6974.1594.621LJ-251352.110.6831.3662.0492.7323.4164.0994.7825.4656.1486.831LJ-351702.650.9061.8122.7173.6234.5295.4356.3417.2468.1529.058LJ-502153.351.

17、2142.4283.6424.8566.077.2848.4989.71210.92612.14LJ-702654.131.5533.1064.6596.2127.7659.31810.87112.42413.97715.53LJ-953255.071.9083.8165.7247.6329.5411.44813.35615.26417.17219.08LJ-1203755.852.2034.4066.6098.81211.01513.21815.42117.62419.82722.03LJ-1504406.862.5385.0767.61410.15212.6915.22817.76620.

18、30422.84225.38LJ-1855007.82.8255.658.47511.314.12516.9519.77522.625.42528.25LJ-2406109.33.1656.3299.49412.65815.82318.98722.15225.31628.48131.645表74 16 35kv三相架空线路允许负荷及负荷矩（COS=0.9）导线型号允许负荷全线电压损失百分数（U%）为下列数值时的负荷矩（MW-km）电流（A）功率（MW）12345678910LGJ-351709.311.823.535.347.058.870.682.394.1105.8117.6LGJ-502

19、2012.014.529.043.558.072.586.9101.4115.9130.4144.9LGJ-7027515.018.937.756.675.594.4113.2132.1151.0169.8188.7LGJ-9533518.323.346.569.893.0116.3139.6162.8186.1209.3232.6LGJ-12038020.726.352.679.0105.3131.6157.9184.2210.6236.9263.2LGJ-15044524.330.360.690.9121.2151.5181.8212.2242.4272.7303.0LGJ-1855152

20、8.133.366.7100.0133.3166.7200.0233.3266.6300.0333.3LGJ-24061033.337.675.2112.8150.4188.0225.6263.2300.8338.4376.0LGJ-30070038.240.781.3122.0162.6203.3243.9284.6325.2365.9406.5LGJ-40080043.744.689.3133.9178.6223.2267.9312.5357.1401.8446.4表74 19 各种情况下网络电压损失允许值线 路 名 称允许电压损失值U%备 注1. 内部低压配电线路2. 外部低压配电线路1

21、2.53.55.0总计不大于6%3. 工业场地内供照明用的低压线路4. 正常情况下，矿区内高压配电线路5. 事故情况下，矿区内高压配电线路3.05.03.06.06.012.04、6两相不大于10%6. 地方性高压供电网络，正常情况5.08.07. 地方性高压供电网络，事故情况10.012.0表74 20 导线最小允许截面和直径导 线 种 类高 压 配 电 线 路 （mm2）低 压 配 电 线 路（mm2）居 民 区非 居 民 区铝及铝合金线钢芯铝线铜线35251625161616168（直径3.2mm）1. 配电线路不应采用单股的铝线或铝合金线，高压配电线路不宜采用单股线。2. 三相四线制的

22、零线，不宜小于相线截面的50%，单相制的零线截面与相线相同。3. 架空送、配电线路与各种工程设施交叉跨越时，交叉档导线截面应满足，送、配电线路设计规程的各项要求。4. 低压入户线导线最小允许截面应满足表7-4-21的要求。表74 21 低压入户线的最小截面架 设 方 式档 距最 小 截 面 （mm2）（m）绝 缘 铜 线绝 缘 铝 线自电杆上引下10以下2.54.010254.06.0表74 23 避雷线与导线配合表避 雷 线 型 号GL25GL35GL50GL70导 线 型 号LGJ35LGJ95LGJ240LGJ400LGJ50LGJ120LGJ300LGJQ500LGJ70LGJ150L

23、GJQ240LGJ185LGJQ300LGJQ150LGJQ400LGJQ185表74 1 地面架空电力线路经济电流密度表年最大负荷利用小时（h）经济电流密度（A/mm2）铝 线钢 芯 铝 线3000以下1.651.65300050001.151.155000以上0.90.9表1032 井下高压电力电缆经济电流密度表年最大负荷利用小时（h）经济电流密度（A/mm2）铜 芯 电 缆铝 芯 电 缆100030002.51.93300050002.251.735000以上2.01.54表1033 电缆的热稳定系数导体种类铜铝电缆类型电缆线路有中间接头的10kv以下油浸纸绝缘电缆电缆线路有中间接头的1

24、0kv以下油浸纸绝缘电缆额定电压（kv）短路允许最高温度（）12025012020031093.415960.490表1034 无中间接头的电缆可承受三相短路稳态电流及相应6kv短路容量表电缆截面（mm2）铜心电缆铝心电缆Tf=0.25sTf=0.65sTf=0.25sTf=0.65sIk（3）kASKMVAIk（3）kASKMVAIk（3）kASKMVAIk（3）kASKMVA3×165.0855.43.1634.52.8831.41.7919.53×257.9586.74.9353.84.549.12.7930.43×3511.12121.36.975.36.

25、368.73.9142.73×5015.87173.29.86107.69.098.25.5860.93×7022.22242.514.79161.412.6137.58.3791.33×9530.19329.418.74204.517.1186.610.6115.73×12038.15416.323.66258.221.6235.713.39146.13×15047.7520.529.58322.827.0294.616.74182.73×18558.83641.936.48398.133.3363.420.65225.33

26、5;24076.32832.847.33516.543.2471.426.79292.3备 注1. 地面变电所向井下馈出开关的继电保护整定时限，取0.65s。2. 井下中央变电所馈出开关的继电保护整定时限，取0.25s。表10-35 有中间接头的电缆可承受三相短路稳态电流及相应6kv短路容量表电缆截面（mm2）铜 芯 电 缆铝 芯 电 缆Tf=0.25sTf=0.65sTf=0.25sTf=0.65sIk（3）kASKMVAIk（3）kASKMVAIk（3）kASKMVAIk（3）kASKMVA3×162.9932.61.8520.21.9321.11.213.13×254

27、.6750.92.8931.53.0232.91.8720.43×356.5471.44.0544.24.22462.6228.63×509.34101.95.7963.26.0465.92.7540.93×7013.08142.78.1188.58.4592.25.2457.23×9517.75193.71112011.48125.37.1277.73×12022.4244.413.9151.714.5158.28.9998.13×15028305.517.38189.618.12197.711.24122.63×1853

28、4.56377.121.43233.822.35243.913.86151.23×24044.83489.227.8303.439425.617.98196.2备 注无中间接头的电缆可承受三相短路稳态电流及相应6kv短路容量可以用上表中数乘以一个K系数取得。铜芯电缆K等于1.7； 铝芯电缆K等于1.49 。表10-3-6 6kv铠装电缆每兆瓦公里负荷矩的电压损失% 截面mm2cos162535507095120150185铜铝铜铝铜铝铜铝铜铝铜铝铜铝铜铝铜铝0.653.946.492.64.231.913.071.392.4981.051.6320.8221.2510.6921.03

29、10.590.8620.5160.7860.73.9126.462.2694.2031.8823.0431.3682.4721.0241.6060.7971.2260.6671.0060.5660.8380.4910.7110.753.8666.4342.5444.1771.8573.0191.3442.4481.001.5830.7751.2030.6440.9830.5630.8150.4680.6880.83.8616.412.5194.1531.8342.9951.3212.4250.9781.5590.7521.1850.6620.9610.5210.7930.4390.6660.8

30、53.8376.3852.4954.1291.8112.9721.2982.4030.9561.5380.731.160.60.9390.50.7710.4250.6450.93.8126.362.474.1041.7872.9481.2752.3790.9331.5150.7081.1370.5770.9170.4770.7490.4020.6170.953.7826.332.4424.0751.7592.9211.2482.3520.9061.4890.6821.1080.5510.8910.4510.7230.3760.5961.003.726.2692.3814.0151.7012.8

31、631.192.2950.8511.4330.6271.0560.4960.8360.3970.6690.3220.542RO（/km）1.342.2570.8571.4450.6121.030.4290.8260.3060.5160.2260.380.1790.3010.1430.2410.1760.195XO（/km）0.0680.0680.0660.0660.0640.0640.0630.0630.0610.0610.060.060.060.060.060.060.060.06备 注1. 电缆芯线温度按65计算。2. 高压系统中的电压损失按全国供用电规则的规定，在正常情况下不得超过7%，

32、故障状态下不得超过10%。3. 电压损失应从地面变电所算起至采区变电所母线止。表10-3-7 10kv铠装电缆每兆瓦公里负荷矩的电压损失% 截面mm2cos162535507095120150185铜铝铜铝铜铝铜铝铜铝铜铝铜铝铜铝铜铝0.651.4072.3060.9341.510.6941.1030.5140.9030.3940.60.3150.4660.2690.3890.2340.330.2080.2850.71.3952.2940.9221.4980.6821.0910.5020.8910.3820.5880.3030.4540.2570.3770.2220.3180.1960.273

33、0.751.3842.2830.9111.4870.6711.080.4910.880.3710.5770.2920.4430.2460.3660.2110.3070.1850.2620.81.3732.2720.91.4760.661.0690.480.8690.360.5660.2810.4320.2350.3550.20.2960.1740.2510.851.3632.2620.891.4660.651.0590.470.8590.350.5560.2710.4220.2250.3450.190.2860.1640.2410.91.3522.2510.8791.4550.6391.048

34、0.4590.8480.3390.5450.260.4110.2140.3340.1790.2750.1530.230.951.3392.2380.8661.4420.6261.0350.4460.8350.3260.5320.2470.3980.2010.3210.1660.2620.1410.2171.001.3132.2120.841.4160.61.0090.420.8090.30.5060.2210.3720.1750.2950.140.2360.1140.191RO（/km）1.3132.2120.841.4160.61.0090.420.8090.30.5060.2210.372

35、0.1750.2950.140.2360.1140.191XO（/km）0.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.08备 注1. 电缆芯线温度按60计算。2. 高压系统中的电压损失按全国供用电规则的规定，在正常情况下不得超过7%，故障状态下不得超过10%。3. 电压损失应从地面变电所算起至采区变电所母线止。表10-5-1 采区变电所的供电距离表采煤机功率(kw)供电电缆截面(mm2)允许供电距离(m)备 注380V660V1140V100355070-57580660-24702550-允许供电距

36、离为变压器馈电开关至机组开关一根电缆时的距离,如采用二根相同截面的电缆,则允许供电距离增加一倍.130355070-308382-16201660-150355070-186265-12601360-170355070-1011822309601050-200355070-66112640720770250355070-278350390300355070-89116162备注: 计算方法见顾永辉著煤矿井下供电升压改造一书。表10-5-13 660V铜芯橡胶软电缆每千瓦公里负荷矩的电压损失（%） 截面（mm2）功率因数cos461016253550700.61.2950.8760.5240.3

37、420.2250.1670.1280.0960.651.290.8730.5210.3390.2220.1640.1250.0930.71.2860.8690.5170.3360.2190.1610.1220.0910.751.2830.8660.5140.3330.2160.1580.1190.0880.81.280.8630.5120.330.2140.1560.1170.0860.851.2770.8610.5090.3270.2110.1530.1140.0830.91.2740.8580.5060.3250.2080.1510.1120.081RO（/km）5.53.692.161.

38、370.8640.6160.4480.315XO（/km）0.1010.0950.0920.090.0880.0840.0810.078备 注1. 电缆芯线温度按65计算。表10-5-14 380V铜芯橡胶软电缆每千瓦公里负荷矩的电压损失（%） 截面（mm2）功率因数cos461016253550700.63.9082.6431.581.0320.6790.5040.3850.290.653.8912.6331.5711.0220.670.4950.3770.2820.73.882.6231.5611.0130.6610.4860.3680.2740.753.8712.6141.5521.00

39、40.6520.4780.3590.2660.83.8622.6051.5440.9960.6440.470.3530.2590.853.8522.5961.5350.9880.6360.4630.3450.2510.93.8432.5871.5270.9790.6280.4550.3770.245-备 注1. 电缆芯线温度按65计算。表10-5-15 660V铠装铜芯及铝芯电缆每千瓦公里负荷矩的电压损失（%） 截面（mm2）功率因数cos10162535507095铜铝铜铝铜铝铜铝铜铝铜铝铜铝0.60.5140.8510.3270.5380.2170.3510.160.2560.1170.1

40、850.0890.1370.070.1060.650.5110.8490.3250.5360.2140.3490.1570.2540.1150.1830.0860.1350.0680.1040.70.5080.8460.3220.5330.2120.3460.1550.2510.1130.180.0840.1330.0660.1010.750.5060.8430.320.5310.210.3440.1530.2490.1110.1780.0820.1310.0640.0990.80.5040.8410.3180.5290.2080.3420.1510.2470.1090.1760.180.1290.0620.0970.850.5020.8390.3160.5270.2060.340.1490.2450.1070.1740.0780.1270.060.0960.90.4990.8370.3140.5250.2040.3380.1470.2440.1050.1720.0770.1250.0580.094RO（