电流与电缆截面积对照表

Table 6-1:Cable Size Selection Table For MV Motors (6600V,3PH, 50HZ)
MV Motor Data(6600 V, 3PH, 50HZ)Maximum Allowable Cable Length [m] Motor Full load P.F. at Efficiency at Starting Starting125% Full Cable Core No.3/C1/C1/C1/C1/C1/C1/C1/C1/C1/C Output Current100% Load100% Load Current P.F.Load Current Nominal Cross
(kW)(A)(%)(%)(A)(%)(A)Section2535507095120150185240300
(mm2 )
Ampacities(A)84103127156189222250292341390
Resistance (R)
@60℃
60HZ(Ohm/km)0.8490.6120.4520.3120.2260.1780.1460.1160.0880.07
Reactance (X)
60HZ(Ohm/km)0.150.15540.170.1680.1580.1530.1510.150.1410.138
15746209742671535877461925495062691720468603997244 7598692.554.02611.2528954342363757943499500895455757601604866656069890
14171188762404332289415724945556422648427743587520 90108692.560.02612.5026059308133382139149450804910151840544375990462901
10901145201849524838319793804343401498785956667323 110138692.578.02616.2520045237022601630114346773777039877418754608048385
9448125841602921526277153297037615432285162358346 132********.02618.7517372205422254826099300533273434560362913993641934
8336111041414318993244542909133189381424555051482 150178693102.02621.2515329181251989523029265182888330494320223523837000
7873104871335717938230962747531345360234302048622 160188694108.02622.5014477171181879021749250442727928800302433328034945
674889891144915376197962355026868308773687441676 185218694126.02526.2512690149491634218850216562354924829260362861730019
644285801092914677188972248025646294743519839782 200228694132.02527.5012113142691559917993206712247823701248532731628655
52496991890511959153971831720897240152868032415 250278694.5162.02433.7510099118511290014827169941844919426203422233223403
45716089775610416134101595318201209172497928232 280318694.5186.02438.758796103211123612914148011606916920177171945020383
4294572072869785125981498617098196492346526521 300338694.5198.02441.25826396961055512131139041509515894166431827119148
3729496763278497109401301514848170642037823031 355388695.3228.02347.5073478586930610656121851320613887145201592116669
331444335680768299491189813643157791896421568 4004288.595.4252.02352.506647776884199642110251194812564131371440515081
296239625076686488911063212191141001694719273 4504788.595.4282.02358.75594069427524861698521067711228117401287313477
26773581458862048036961011019127451531717420 5005288.595.5312.02365.0053696274680077878904965010148106111163512181
2400321041135562720586169879114261373315618 5605888.595.6348.02372.50481356256097698279838652909895131043110921
2210295537875121663379329095105191264314378 6006388.595.6378.02378.7544315179561364287350796583768758960310054
207127723556481662467478858399411196413626 650678995.7402.02383.754167487052786044691174907876823590309454
24123094419154356506746886501041111856 750778995.8462.02396.25423745925259601365176853716678578226
2238287138885042603669298025965810999 800838995.8498.023103.75393142604879557960466358664872897631
270836674755569365357569910910374 850888995.8528.023110.0040184602526257035997627068757198
23133133406348645583646777838863 10001038995.9618.023128.7534333931449548725123535758746150
30553507406148885567 16001648996.1984.023205.0030603218336436893862
2870333340234595 20002029096.51212.023252.50 2612273129953136
296635804089 22502279096.61362.023283.75243126652790 *The above motor data are as per Japanese motor vendor's data.
NOTES:1: The cable lengeh in cable size selection table shows as follows:2: Allowable Running Voltage Drop: 3%.
Upper row: Maximum cable length based on the allowable voltage drop at normal operation. Allowable Starting Voltage Drop: 15%.
Lower row: Maximum cable length based on the allowable voltage drop at motor starting.3: Cable size for each KW rating shall be selected from the maximum allowable cable lengths
The shorter length shall be used for maximum cable length of the cable size.4: The cables are sized for125% full load current of the motors.
5. Cable type: YJV
Table 6-2:Cable Size Selection Table For HV Feeders (10000V,3PH, 50HZ)
HV Feeders Data(10000 V, 3PH, 50HZ)Maximum Allowable Cable Length [m]
Load Full Load PF at Cable Core No.1/C1/C1/C1/C1/C1/C1/C1/C1/C (kVA)Current100% Load Nominal Cross
(A)(%)Section35507095120150185240300
( mm2 )
Ampacities(A)111132161198227256293341391
(R)
Resistance
@60℃
60HZ(Ohm/km)0.6120.4520.3120.2260.1780.1460.1160.0880.07
Reactance (X)
60HZ(Ohm/km)0.15540.170.1680.1580.1530.1510.150.1410.138 100680343164314257079725718540096435109412129036328540 20012801715821571285403628642700482175470664518164270 30017801143914381190262419028467321453647143012109513 400238085791078514270181432135024109273533225982135 50029806863862811416145141708019287218822580765708 6003580571971909513120951423316072182352150654757 750438045755752761196761138712858145881720543805 800468042895393713590711067512054136771613041067 90052803813479463428063948910715121571433736504 10005880343243145708725785409643109411290432854 15008780287638054838569364297294860221903 20001158028543629427048225471645216427 2500144802903341638574376516113142 300017380284732143647430110951 400023180273532268213 5000289806571 1000057780
Notes : 1. Allowable voltage drop: 2%
2. Cable size for each kVA rating shall be selected from the maximum allowable cable lengths.
3. Cable type: YJV
Table 6-3:Cable Size Selection Table For LV Motors (380V,3PH, 50HZ)
LV
Motors
(380V,3PH, 50HZ)Maximum Allowable Cable Length [m] Motor Full load P.F. at Efficiency at Starting Starting125% Full Cable Core No.4/C4/C4/C4/C4/C4/C4/C1/C1/C1/C1/C1/C1/C Output Current100% Load100% Load Current P.F.Load Current Nominal Cross
I F I
S
=6I
F
Section 2.54610162535507095120150185
(kW)(A)(%)(%)(A)(%)(A)( mm2)
Ampacities(A)192733466082101137178217252293335
Resistance (R)
@60℃
60HZ(Ohm/km)8.747 5.439 3.599 2.129 1.3420.8490.6120.4520.3120.2260.1780.1460.116
Reactance (X)
60HZ(Ohm/km)0.1390.1370.1370.1280.1220.1210.1140.1340.1330.130.1280.1260.126
148923603497572286871280816810200382544530769348843841742045
0.180.95356 5.669 1.29611531228437775815875811684144251893123588273723072834442
831132119673240496574239846120061556819184220672459127310
0.37 1.46363.58.562 1.8703111816632739419362618296100941306316067184552054122778
450717107017712728411554946797893811157129661457416362
0.75 2.47069.514.165 2.94036419551576241936254818590076819500109591224213637
246392585971150222793056381950736393748684699588
1.5 4.07575.524.258 5.02624176191016155123033039366547055743655972668010
174278416692107116282188274536614632544261737013
2.2 5.57778.53
3.255 6.9201319474776118117462297275135094259484353465868
10717125642565810021348169522642871337838374368
3.78.9788153.44911.114022132753480711821544182222932751310033983698
73117175291450684919115415381946228725942947
5.513.27782.579.0501
6.5931472173555377871030121915371848208622892494
548713021633551068586211521460171819522221
7.517.57883.5105.04821.97311517027641761079693711761409158517351886
60901492323534755988011018120013651556 1125.07984.5150.24031.3951402263384866277218881045116212601353
6711117226235344659775989610201164 1533.579.585.5201.23741.91121802683844925616848008859561023
90140214289364489622735837957
18.540.98086245.23451.1159235334426480581674742798850
77119182245309415529625713815 2248.080.586.5288.13360.0139205290369414500579636684727
88134181229308392464530606 3064.78187388.13480.9148211269303367426469504537
110148187252322381435498 3778.881.587.5473.03698.6166213242294343379409437
122155209267317362415 4594.88288568.535118.4180204248288318342365
101128173221262300345 55114.582.588.5686.833143.1155174210243267287305 *The above motor data are according to CNS-2934(table 3 , 1800rpm).
Notes:1: The cable lengeh in cable size selection table shows as follows:
Upper row: Maximum cable length based on the allowable voltage drop at normal operation.
Lower row: Maximum cable length based on the allowable voltage drop at motor starting.
The shorter length shall be used for maximum cable length of the cable size.
2: Allowable running voltage drop: 3%
3: Allowable starting voltage drop: 15%
4: Cable size for each kW rating shall be selected from the maximum allowable cable lengths.
5: The cables are sized for 125% full load current of the motors.
6. Cable type: YJV
LV Feeders (208V,3PH, 50HZ)Maximum Allowable Cable Length [m]
Load Full Load PF at Cable Core No.3/C3/C3/C3/C3/C3/C3/C1/C1/C1/C1/C1/C1/C1/C1/C2x1/C2x1/C2x1/C2x1/C2x1/C (kVA)Current100% Load Nominal Cross
(A)(%)Section 2.54610162535507095120150185240300120150185240300
( mm2 )
Ampacities(A)192733466082101137178217252293335396450504586670792900 (R)
Resistance
@60℃
60HZ(Ohm/km)8.747 5.439 3.599 2.129 1.3420.8490.6120.4520.3120.2260.1780.1460.1160.0880.070.0890.0730.0580.04400.0350 (X)
Reactance
60HZ(Ohm/km)0.1390.1370.1370.1280.1220.1210.1140.1340.1330.130.1280.1260.1260.1250.1210.0640.0630.0630.06250.0605 513.980457110717827642156771596012221442164318772174245928853287375543494917 1027.8803653891382102833584806117218229391087122914421643187721742459 1541.680 59921401892383204074815486267258209621096125214501639 2055.5806910514217924030536141146954461572182293910871229 3083.3807094119160204240274313362410481548626725820 40111.0807189120153180205235272307361411469544615 50138.8807296122144164188217246288329375435492 60166.5806080102120137156181205240274313362410 70194.3806987103117134155176206235268311351 80222.1807690103117136154180205235272307 90249.880688091104121137160183209242273 100277.680728294109123144164188217246 150416.480558296110125145164 200555.180728294109123 300832.78055637282 4001110.380475461 5001387.980384349 6001665.480313641 Notes : 1. Allowable voltage drop: 2%
2. Cable size for each kVA rating shall be selected from the maximum allowable cable lengths.
3. Cable type: YJV
LV Feeders (220V,3PH, 50HZ)Maximum Allowable Cable Length [m]
Load Full Load PF at Cable Core No.3/C3/C3/C3/C3/C3/C3/C1/C1/C1/C1/C1/C1/C1/C1/C2x1/C2x1/C2x1/C2x1/C (kVA)Current100% Load Nominal Cross
(A)(%)Section 2.54610162535507095120150185240300120150185240
( mm2 )
Ampacities(A)192733466082101137178217252293335396450504586670792 (R)
Resistance
@60℃
60HZ(Ohm/km)8.747 5.439 3.599 2.129 1.3420.8490.6120.4520.3120.2260.1780.1460.1160.0880.070.0890.0730.0580.0440 (X)
Reactance
60HZ(Ohm/km)0.1390.1370.1370.1280.1220.1210.1140.1340.1330.130.1280.1260.1260.1250.1210.0640.0630.0630.0625 513.180477511318829244559975710151292152617381986230026003051347639724600 1026.2805694146222300378508646763869993115013001526173819862300 1539.480 971482002523384315095796627678671017115913241533 2052.5801111501892543233814354965756507638699931150 3078.780100126169215254290331383433509579662767 40105.08095127162191217248287325381435496575 50131.280102129153174199230260305348397460 60157.580108127145165192217254290331383 70183.780109124142164186218248284329 80209.98095109124144163191217248287 90236.28097110128144170193221256 100262.48099115130153174199230 150393.68087102116132153 200524.98099115 300787.380
4001049.780
5001312.280
6001574.680
Notes : 1. Allowable voltage drop: 2%
2. Cable size for each kVA rating shall be selected from the maximum allowable cable lengths.
3. Cable type: YJV
2x1/C 300 900 0.0350
0.0605 5201 2600 1734 1300 867 650 520 433 371 325 289 260 173 130 87
Table 6-6: Cable Size Selection Table For Feeders (380V , 3PH , 50HZ)
LV Feeders (380V,3PH, 50HZ)Maximum Allowable Cable Length [m]
Load Full Load PF at Cable Core No.3/C3/C3/C3/C3/C3/C3/C1/C1/C1/C1/C1/C1/C1/C1/C2x1/C2x1/C2x1/C2x1/C2x1/C (kVA)Current100% Load Nominal Cross
(A)(%)Section 2.54610162535507095120150185240300120150185240300
( mm2 )
Ampacities(A)192733466082101137178217252293335396450504586670792900 (R)
Resistance
@60℃
60HZ(Ohm/km)8.747 5.439 3.599 2.129 1.3420.8490.6120.4520.3120.2260.1780.1460.1160.0880.070.0890.0730.0580.04400.0350 (X)
Reactance
60HZ(Ohm/km)0.1390.1370.1370.1280.1220.1210.1140.1340.1330.130.1280.1260.1260.1250.1210.0640.0630.0630.06250.0605
57.6808213019532550476810351307175422322635300234303973449252706004686079458983
1015.28041659816225238451865387711161318150117151986224626353002343039734492 1522.880 4365108168256345436585744878100111431324149717572001228726482994 2030.48081126192259327438558659751858993112313181501171519862246 3045.680841281732182923724395005726627498781001114313241497 4060.880 961291632192793293754294975616597518589931123 5076.080104131175223264300343397449527600686795898 6091.280109146186220250286331374439500572662749 70106.48093125159188214245284321376429490568642 80121.580110139165188214248281329375429497561 90136.78097124146167191221250293334381441499 100151.980112132150172199225264300343397449 150227.980100114132150176200229265299 200303.98099112132150172199225 300455.880100114132150 400607.78099112 500759.78090 600911.68075 Notes : 1. Allowable voltage drop: 2%
2. Cable size for each kVA rating shall be selected from the maximum allowable cable lengths.
3. Cable type: YJV。