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1、页眉内容常用线缆规格(BV BLV BVR )截回mm 22.5最大直径3.9铝(A)17铜(A)31.644.42247.564.92967.1107621191687817925101182813511.51563815013.221552170152827349517.538696212019431118015021539147018523.5666181024026.5857235030029.5107029304003313903870BV聚氯乙烯铜线 BLV聚氯乙烯铝线BVR 铜软线 BV 105 铜 105 cBVV铜线（潮湿环境高防护）BXF橡皮绝缘铜线BLXF橡皮绝缘铝线 B
2、LVV铝线（潮湿环境高防护）VV29-铜芯聚氯乙烯绝缘钢带铠装聚氯乙烯护套电力电缆VLV29铝芯聚氯乙烯绝缘钢带铠装聚氯乙烯护套电力电缆标称面积m m2线芯结构no/mm绝缘厚度mm护套厚度mm计算外径mm环境25 C时载流 量（A）空气敷设环境25 c时载 流量（A）埋土 敷设成品近似重重kg/km铜芯铝芯铜芯铝芯铜芯铝芯1*107*1.3511.613.480.661.5103.9793462851*167*1.7011.614.510681.5126.7104.94363361*257*2.141.21.616.3143.1110.2181.3138.75694141*357*2.521
3、.21.617.7173.8133.6220.5169.66964801*5019*1.781.41.819.8217.3167.5270.3208.89186051*7019*2.141.41.819.8268.2206.7331.8255.512727831*9519*2.521.6222329.7253.4394.3304.2162210361*12037*2.031.6226.2377.4292.6454.7350.7190211621*15037*2.251.8228.4434.6335518.3398.6227413551*18537*2.5222.230.9494380.5580
4、.9447.3272915821*24061*2.252.22.233.6584449.4676.3521.5333918531*30061*2.522.42.637669.9515.2760584.1404520732*42*1*2.250.81.615.438.228.647.737.13853352*62*1*2.7611.617.247.737.159.445.64804032*102*7*1.3511.820.563.648.877.459.46615382*162*7*1.711.823.585.765.710680.69987972*252*7*2.141.2227.2112.4
5、85.7138.7106133010192*352*7*2.521.22.229.9135.7104.9166.4128.3163111922*502*18*1.91.4227.3169.6130.4202.5155.6177511662*702*18*2.251.42.230.3208.8161.1247190.8227214192*952*24*2.251.62.233.7254.4196.1294.7226.8287817182*1202*24*2.551.62.636.7294.7227.9339.2261.8347720122*1502*45*2.071.82.639.7338.12
6、60.7382.7293.6417523463*43*1*2.250.81.61632.924.441.331.84443703*63*1*2.7611.61841.331.851.940.35644543*103*7*1.3511.822.255.142.47054.19377533*163*7*1.7122575.357.292.27112291283*253*7*3.141.2228.6101.877.4121.993.3164311763*353*7*2.521.22.231.4120.893.3147.3113.4225115993*503*18*1.91.42.231.2152.6
7、117.7182.3141243216193*703*18*2.251.42.635189.7146.3236.4171.7315318723*953*24*2.251.62.638.8230177261.8201.4402722873*1203*24*2.551.62.641.5267.1205.6299.9231.1481926223*1503*45*2.071.8346.5309.5238.5343.4262.9593231881*1803*45*2.302350.5353272382.7295.7711037253*2403*45*2.622.23.456.2415.5323.3446
8、.3343.4896545733*4+1*2.53*1*2.25+1*1*1.750.81.616.831.824.439.230.74924033*6+1*43*1*2.76+1*1*2.2511.819.341.331.850.939.26445153*10+1*63*7*1.35+1*1*2.7611.82355.142.467.85310278073*16+1*63*7*1.70+1*1*2.761225.774.257.290.168.913159783*25+1*103*7*2.14+1*7*1.351.22.229.899.677.4121.990.1180012723*35+1
9、*103*7*2.52+1*7*1.351.22.232126.197.5151.6116.6217414613*50+1*163*10*1.9+1*7.1.701.42.634.7157.9121.9185.5143.1276317483*70+1*253*10*2.25+1*7*2.141.42.638195149.5233.7171.7349820623*95+1*353*24*2025+1*7*2.521.62.643239.6184.4269.2207.8456426073*120+1*353*24*2.55+1*7*2.521.6316275.6213.13.7.4236.4541
10、229983*150+1*503*45*2.07+1*19*1.781.8350319.1244.9346.7267.1660635483*182+1*503*45*2.30+1*19*1.782353.9365.7282391.130177814082VV 铜芯聚氯乙烯绝缘及护套电缆LV -铝芯聚氯乙烯绝缘及护套电缆标称面积m m2线芯结构no/mm绝缘厚度mm护套厚度mm计算外径mm环境25 c日处 流量(A)空气敷 设环境25 c日处 流量(A)埋土 敷设成品近似重重kg/km铜芯铝芯铜芯铝芯铜芯铝芯121*1.131*1.370.80.81.61.65.96.21924.428.636
11、455131*1.760.81.66.633.925.447.737.1644841*2.240.81.67.143.532.964.749.8825861*2.7311.67.957.243.581.662.511175101*3.5511.68.776.358.3109.184.815695161*4.4511.69.6102.878.4146.3112.4216120257*2.121.21.612129.3108.1194148.4340185357*2.501.21.613.1171.7131.4234.3180.24452285019*1.831.41.615.2216.2166.
12、4288.3222.66163037019*2.141.41.616.7268.2206.7353271.48073779519*2.501.61.819.3288.3226.8415.5320109050512019*2.801.61.820.8377.4292.6478.1368.9134059315019*3.131.81.822.9434.6335547415.5206073018537*2.502225.5492.9379.5606.3462.1215090024037*2.832.22.228.2585.1450.57075472570110030037*3.172.42.2326
13、74.2519.4796.1611.63216137540037*3.662.62.636802.4624.3928.6718.74255181650061*3.182.82.639.4939.2720.1#8125212218063061*3.562.82.642.8#834.2#930.7641236132*252*7*2.141.21.821.8113.487.9138.9107.17354242*352*7*2.521.2224.5131.4100.7165.4127.29475402*502*18*1.901.41.821.9164.3127.2203.1156.211775682*
14、702*18*2.251.4225207.8160.1249.1190.815997462*952*24*2.251.6228.3252.3192.9296.822921229622*1202*24*2.551.62.231289.4223.7339.2261.8263011652*1502*45*2.071.82.234333.9256.5386.9296.8324914203*253*7*2.141.21.823.298.676.3121.992.210145473*353*7*2.251.2226119.892.2149.5114.515549023*503*18*1.901.4225.
15、8148.4114.5181.3139.917418283*703*18*2.251.4228.8185.5143.1222.6171.7232710463*953*24*2.251.62.233226.8174.9263.9203.5312513853*1203*24*2.551.62.636.5261.8202.5300231.1390617093*1503*45*2.071.82.640.7310.6238.5345.6265483620923*1853*45*2.3022.644.7351.9272.4389300590825233*2403*45*2.622.2350.4419.83
16、24.4449.4346.6762932343*4+1*2.53*1*2.25+1*1*1.780.81.612.630.723.340.330.72521633*6+1*4.03*1*2.76+1*1*2.2511.614.740.330.750.939.23512223*10+1*6.03*7*1.35+1*1*2.7611.617.654.142.468.9535343143*16+1*6.03*7*1.70+1*1*2.7611.820.372.156.28968.97594223*25+1*103*7*2.14+1*7*1.2224.497.575.3117.791.21146617
17、1.353*35+1*103*7*2.50+1*7*1.351.2226.5121.994.3147.3113.414647513*50+1*163*18*1.90+1*7*1.701.4228.5152.6117.7183.414119469313*70+1*253*18*2.25+1*7*2.141.42.232.2188.7144.2220.5169.6266112253*95+1*353*24*2.25+1*7*2.521.62.638231178.1263.9202.5361316563*120+1*353*24*2.55+1*7*2.521.62.640.2267.1206.730
18、2.1233.2433119173*150+1*503*54*2.07+1*19*1.781.82.644.2314.8241.7348.7268.2541823603*185+1*503*45*2.30+1*12348.9361.5278.8392.2303.2657128729*1.78BV型铜芯聚氯乙烯绝缘电线标称面积m m2线芯结构on/mm绝缘厚度mm最大外径mm正25 C 取人直 流电阻Q /km正75 c时最小直 流电阻MQ /km正25c空气 敷设载流量A成品近似重量 kg/km0.51*0.80.62.4360.015138.30.751*0.970.62.624.50.01
19、21710.90.757*0.370.62.824.50.0141711.711*1.130.62.818.10.0112013.617*0.430.6318.10.0132014.71.51*1.380.73.312.10.0112519.91.57*0.520.73.512.10.0125212.51*1.780.83.97.410.013431.42.57*0.680.84.27.410.0093433.141*2.250.84.44.16#44.546.347*0.850.84.84.16#44.54961.2.760.84.93.08#586667*1.040.85.43.08#58
20、69.4107*1.35171.83#79.5116167*1.70181.15#111175257*2.141.2100.727#146275357*2.521.211.50.524#1803725019*1.781.4130.359#2254967019*2.141.4150.26#2807019519*2.521.517.50.193#34496912037*2.031.6190.135#397.5#15037*2.251.8210.124#455.5#18537*2.52223.50.0991#519#24061*2.252.2260.0754#30061*2.522.429.50.0
21、601#40061*2.852.6330.047#BLV型铝芯聚氯乙烯绝缘电线标称面积m m22.5线芯结构on/mm1*1.78绝缘厚度mm0.8最大外径mm3.9正25c最大 直流电阻Q /km11.8正75 c时最小 直流电阻MQ /km0正25 C空气敷设 载流量A26.5成品近似重量 kg/km16461*1.251*2.760.80.84.44.97.394.910.00850.0073444.521.72910167*1.357*1.7011783.081.910.00650.00562.58553.175.6257*2.141.2101.20.005111117357*2.52
22、1.211.50.8680.0041381535019*1.781.4130.6410.00451752027019*2.141.4150.4430.00352172749519*2.521.6170.320.003526537712037*2.031.6190.2530.003230245315037*2.251.8210.2060.0032344.556018537*2.52223.50.1640.003240370124061*2.252.2260.1250.003290530040061*2.5261*2.852.42.629.5330.10.07780.0030.0028112714
23、25BVR型铜芯聚氯乙烯绝缘软电线（电缆）标称面积m m2线芯结构on/mm绝缘厚度mm最大外径mm正20c最大直流电阻Q/km正70 C时最 小直流电阻MQ /km正25c空气 敷设载流量A成品近似重量 kg/km2.519*0.410.84.27.410.113433419*0.520.84.84.610.00944.549619*0.640.85.63.080.00845871101649*0.5249*0.64117.68.81.831.150.00720.006279.2111125.51812598*0.581.2110.0730.005814630235133*0.581.212
24、.50.5240.00521803955070133*0.68189*0.681.41.414.5160.3780.2680.00370.0045225280544728铝芯绝缘导线载流量与截面的倍数关系导线截面(mm2 )11.52.54610162535507095120载流是截面倍 数9876543.532.5载流量(A)9142332486090100123150210238300估算口诀:二点五下乘以九，往上减一顺号走。三十五乘三点五，双双成组减点五。条件有变加折算，高温九折铜升级。穿管根数二三四，八七六折满载流。说明:页眉内容(1) 本节口诀对各种绝缘线(橡皮和塑料绝缘线)的载流量
25、(安全电流)不是直接指出，而是“截面乘上一定的倍数”来表示，通过心算而得。由表 5 3 可以看出：倍数随截面的增大而减小。“二点五下乘以九， 往上减一顺号走”说的是 2. 5mm及以下的各种截面铝芯绝缘线，其载流量约为截面数白9倍。如2. 5mm导线，载流量为 2. 5X9= 22. 5(A)。从4mm及以上导线的载流量和截面数的倍数关系是顺着线号往上排，倍数逐次减1,即4X8、6X7、10X6、16X5、25X4。“三十五乘三点五，双双成组减点五”，说的是 35mm的导线载流量为截面数的3. 5倍，即35X3. 5 =122. 5(A)。从50mm及以上的导线，其载流量与截面数之间的倍数关系变为两个两个线号成一组，倍数依次减0. 5。即50、70mm导线的载流量为截面数的3倍；95、120mm导线载流量是其截面积数的2. 5倍，依次类推。“条件有变加折算，高温九折铜升级”。上述口诀是铝芯绝缘线、明敷在环境温度25的条件下而定的。若铝芯绝缘线明敷在环境温度长期高于25的地区，导线载流量可按上述口诀计算方法算出，然后再打九折即可；当使用的不是铝线而是铜芯绝缘线，它的载流量要比同规格铝线略大一些，可按上述口诀方法算出比铝线加大一个线号的载流量。如16mm铜线的载流量，可按 25mm左吕线计算。