电气常用单位换算.docx

1、电气常用单位换算常 用 单 位 换 算： 1 、 公 制 与 英 制公 制英 制1米=10分米（公寸）1英尺=12英寸1分米=10厘米（公分）1英寸=8英分1厘米=10毫米（公厘）1寸=25.4毫米（公厘）=2.54厘米（公分）1毫米=0.03937寸寸习惯称呼毫米寸习惯称呼毫米1/16半分1.5879/16四分半14.2871/8一分3.1755/8五分15.8753/16一分半4.76211/16五分半17.4621/4二分6.3503/4六分19.0505/16二分半7.93713/16六分半20.6373/8三分9.2527/8七分22.2257/16三分半11.11215/16七分半

2、23.8121/2四分12.78/81寸25.42、 1马力=735.5瓦=0.376千瓦 1 千瓦=1.36马力3、 几种常用重量单位换算表：名称吨公斤市斤英磅克吨1100020002204.61000000公斤0.001122.2051000市斤0.00050.511.103500英磅0.000450.45360.90721453.6克0.0000010.0010.0020.002214、长度单位换算表:名称米厘米毫米市尺英尺英寸英分米1100100033.28139.37315厘米0.011100.030.032810.39373.15毫米0.0010.110.0030.003280.0

3、3940.315市尺0.333333.33333.311.093613.123105英尺0.304830.48304.80.914411296英寸0.02542.5425.40.07620.0833318英分0.003170.317463.17460.00950.010420.1251常用法定计量单位名称与符号对照表:量的名称中文符号国际符号非法定单位与法定单位换算长度（，L）米m3市尺=1米宽度（b）厘米cm21公分=1厘米=10米高度（h）毫米mm1公厘=1毫米=10-3米厚度（S）微米-61公微=1微米=10米半径（r , R纳米nm1毫微米=1纳米=10-9米直径（d, D千米（公里）

4、km1千公尺=1千米1海里=1.852公里=1852米1英寸=2.54厘米1英尺=30.48厘米1码=91.44厘米1 英里=1609.344 米质里（m千克（公斤）kg1 吨=1000kg1 市斤=0.5kg1市担=50kg兆克Mg克g毫克mg微克g面积（A, S）平方米2 m1市亩=666.67平方米1公亩=100平方米1公顷=10000平方米1平方市里=2.5 X10平方米平方千米kmf平方分米dm平方厘米2 cm平方毫米mm压力、压强（P）帕斯卡 吉帕斯卡 兆帕斯卡 千帕斯卡 毫帕斯卡 微帕斯卡PaGPMPKFa mP1标准大气压=1.01325 X10 R1毫米汞柱=133.322P

5、a1毫米水柱=9.806375Pa1工程大气压=9.8065 X104Pa1 巴=105Pa1 托=133.322Pa正应力（6）切应力（T）（剪应力）帕斯卡或牛（顿）每平方米2Pa 或 N/m千克力每平方米=9.80665Pa3吨力每平方米=9.80665 X10 Pa力（F）牛（顿）兆牛（顿） 千牛（顿） 毫牛（顿） 微牛（顿）NMNKN mNN51达因=10- N31 克力=9.80665 X10- N 千克力=9.80665N, 3吨力=9.80665 X10 N磅力=4.448N力矩（M牛（顿）米 兆牛（顿）米 千牛（顿）米 毫牛（顿）米 微牛（顿）米NmMNmKNmmNmpNm1达

6、因厘米=107N m1千克力米=9.80665N m1英顿力英尺=3.037 X10 N m功（W热量（Q焦（耳）兆焦（耳）千焦（耳）毫焦（耳）JMJKJ mJ可应用非国际单位与法定单位换算：31瓦（特小）时=3.6 X10 J1千瓦（特小）时=3.6 X106J1兆瓦（特小）时 =3.6 X109J-191 电子伏=1.602 X10 J废除单位与法定单位换算：1尔格（达因厘米）=10-7J61马力小时=2.648 X10 J1千克力米=9.80665J1牛（吨）米=1J1升标准大气压=101.325J热力学温度（T）摄氏温度（C）开（尔文）摄氏度KC华氏温度（tF）华氏度T秒SmS毫秒yS

7、微秒nS纳秒d时间（t ）天（日）(1d=36400S)（小）时h分(1h=3600S)min(1min=60S)瓦特W（米制）1马力-735WMW功率（P）兆瓦特KW=0.736KW千瓦特mW1KW=1.36 马力毫瓦特电场强度（E）伏（特）每米v/m1牛顿每库仑-v/m常用电工符号及其单位:名称符号单位及其代号辅助单位及其代号电流I安培（A）1安-1000毫安（mA , 1毫安-1000微安（询电压V伏特（V）1 千伏-1000 伏(V), 1 伏-1000 毫伏(mv)电阻R欧姆（Q）1 兆欧（MD） -1000 千欧（k Q）, 1 千欧-1000 欧（Q）电容C法拉（F）1法拉-10

8、00毫法（mF , 1毫法-1000微法（诉）电感L享利（H）1享-1000毫享（mH , 1毫享-1000微享（ilH）感抗X欧姆（Q）容抗Xc欧姆（Q）有功功率P瓦特（W1 千瓦（kw） =1000 瓦（W无功功率Q乏（Var）1 千乏（kVar） -1000 乏（Var ）视在功率S伏安（VA1千伏安（kVA） -1000伏安（VA电度W千瓦时（kWh）1 kWh -1度电功率因数cos（注：即力率）频率?赫兹（HZ1 千赫（kHZ -1000HZ转速n转 / 分（ r/mi n ）电场强度E伏（特）每米（v/m）常用架空导地线的型号及其意义：L铝； G 钢； J绞； Q轻型； J加强；

9、 F 防腐；X稀土;LJ 硬铝绞线； LGJ 钢芯铝绞线； LGJQ 轻型钢芯铝绞线LGJJ 加强型钢芯铝绞线； LGJF 防腐型钢芯铝绞线；GJ 钢绞线LJ与LGJ参数构 结 芯 线x) 径 直 /x) 量 重 考 参J GL铝铝钢J GL22221486O3933821259655.15521O3100691708199刀201O2刀952355122刀58152刀578.7402002 刀3O/29/40037/3.7028/4.1719/2.21106.01635.250037/4.141384.760061/3.551676.0LGJQ与 LGJJ 参数构 结 芯 线x) 径 直 /

10、x) 量 重 考 参Q J G LJJ GGL铝钢铝钢Q J G LJJ GGL501刀5/Z 刀O5418685O2刀00/Z 刀566O2442刀2 刀75951362刀2015441400O 刀394177814001O 刀-5011-005-1 O8-O603821700-6012-钢芯铝绞线主要技术参数(GB117 83)标称截面 铝/钢2(mm)根数/直径(mm)计算截面(mni)外径(mm)直流电阻(不大于，Q/km)计算拉断力(N)计算质量(kg/km)交货长度(不小于,m)铝钢铝钢总计10/216/325/435/66/1.506/1.856/2.326/2.721/1.50

11、1/1.851/2.321/2.7210.6016.1325.3634.861.772.694.235.8112.3718.8229.5940.674.505.556.968.162.7061.7791.1310.82304120613092901263042.965.2102.6141.0300030003000300050/850/306/3.2012/2.321/3.207/2.3248.2550.738.0429.5956.2980.329.6011.600.59460.56921687042620195.1372.92000300070/1070/406/3.8012/2.721/3

12、.807/2.7268.0569.7311.3440.6779.39110.4011.4013.600.42170.41412339058300275.2511.32000200095/1526/2.157/1.6794.3915.33109.7213.610.305835000380.8200095/207/4.167/1.8595.1418.82113.9613.870.301937200408.6200095/5512/3.207/3.2096.5156.30152.8116.000.299278110707.72000120/718/2.901/2.90118.896.61125.50

13、24.500.242227570379.02000120/2026/2.387/1.85115.6718.82184.4015.070.249641000466.82000120/257/4.727/2.10122.4821.25146.7315.740.234547880526.62000120/7012/3.607/3.60122.1571.25196.4018.000.236498370895.62000150/818/3.201/3.20444.768.84152.3016.000.198932860461.42000150/2024/2.767/1.85145.6818.82164.

14、5016.670.198046630549.42000150/2526/2.707/2.10148.8621.25172.1117.100.193954110601.02000150/3530/2.507/2.50147.2034.36181.6217.500.196265020676.22000185/1018/3.601/3.60183.2210.18193.4018.000.157240880584.02000185/2524/3.157/2.10187.0424.25211.2918.900.154259420706.12000185/3026/2.987/2.32181.3429.5

15、9210.9318.880.159264320732.62000185/4530/2.807/2.80184.7343.10227.8319.600.156480190848.22000210/1018/3.801/3.80204.1411.34215.4819.000.141145140650.72000210/2524/3.337/2.22209.0227.10236.1219.980.138065990789.12000210/3526/3.227/2.50211.7334.36246.0920.380.136374250853.92000210/5030/2.987/2.98209.2

16、448.82253.0620.860.138190830960.82000240/3024/3.607/2.40244.2931.67275.9621.600.118175620922.22000240/4026/3.427/2.66238.8538.90277.7521.660.120983370964.32000240/5530/3.207/3.20241.2756.30297.5722.400.119810210011082000300/1542/3.007/1.67296.8815.33312.2123.010.0972468060939.82000300/2045/2.937/1.9

17、5303.4220.91324.3323.430.095207568010022000300/2548/2.857/2.22306.2127.10333.3123.760.094338341010582000300/4024/3.997/2.66300.0938.90338.9923.940.096149222011332000300/5026/3.837/2.98299.5448.82348.3624.260.0963610340012102000300/7030/3.607/3.6305.3671.25376.6125.200.0946312800014022000400/2042/3.5

18、17/1.95406.4020.91427.3126.910.071048885012861500400/2545/3.337/2.22391.9127.10419.0126.640.073709594012951500400/3548/3.227/2.50390.8834.36425.2426.820.0738910390013491500400/5054/3.077/3.07399.7351.82451.5527.630.0723212340015111500400/6526/4.427/3.44398.9465.06464.0028.000.0723613520016111500400/

19、9530/4.1619/2.50407.7593.27501.0229.140.0708717130018601500500/35500/45500/6545/3.7548/3.6054/3.447/2.507/2.807/3.44497.01488.58501.8834.3643.1065.06531.37531.68566.9430.0030.0030.960.058120.059120.05760119500128100154000164216881897150015001500630/45630/55630/8045/4.2048/4.1254/3.877/2.807/3.2019/2

20、.32623.45639.92635.1943.1056.3080.32666.55696.22715.5133.6034.3234.820.046330.045140.04551148700164400192900206022092388120012001200800/55800/70800/10045/4.8048/4.6354/4.337/3.207/3.6019/2.60814.3356.30870.6038.4038.5838.980.035470.035740.0363519150026902785.92985.4100010001000单分裂钢芯铝绞线导线的电阻及正序电抗(Q/k

21、m)导线型号直流电阻(Q /km)几何均距( m)4.04.55.05.56.06.57.07.58.0LGJ-70/100.42170.4260.4330.4400.44670/400.41410.4150.4220.4290.435LGJ-95/200.30190.4140.4210.4280.4340.4390.44495/550.29920.4050.4120.4190.4250.4300.435LGJ-120/25120/700.23450.4060.4130.4200.4260.4310.4360.23640.3970.4050.4110.4170.4230.428LGJ-150/

22、25150/350.19390.4000.4080.4140.4200.4260.4310.19620.3990.4060.4130.4190.4250.430LGJ-185/30185/450.15920.3940.4020.4080.4140.4200.4250.4290.4340.4380.15640.3920.3990.4060.4120.4170.4220.4270.4310.435LGJ-210/35210/500.13630.3890.3970.4030.4090.4150.4200.4250.4290.4330.13810.3880.3950.4020.4080.4130.4180.4230.4280.432LGJ-240/40.12090.3860.3930.4000.4060.4110.4160.4210.4250.42900.11980.3830.3900.3970.4030.4090.4140.4190.4230.427240/55LGJ-300/40.09614