Cng thc tnh cc loi tiA-CNG THC TNH DNG CHO NG C Ia :DNG YU CU CA
CC LOI N PHNG IN1-ng c 3 pha:Pn =akWLoi nCng sut yu cu DngKhi ngHiu
sut chiu sngLumenTui th trung bnh ca n (h)Phm vi s dngU
=380VW230V-400V230V-400V230V-400VIa/InChu kCos =bn hi natri cao p
(sodium) =cHiu sut ng c50600.760.31.41.646801209000Chiu sng phng hp
ln Chiu sng ngoi tri cng cngIa =
Pnx1000/(SQRT(3)xUxxCos)0Ampe708010.452-ng c 1 pha:1001151.20.65Pn
=akW1501681.80.85U =220V25027431.4Cos =b4004314.42.2 =cHiu sut ng
c1000105510.454.9Ia = Pnx1000/(UxxCos)0Ampen hi natri thp p
(sodium)n tiu chun1826.50.141.11.3715100200800012000Chiu sng ng t
Chiu sng s c, snga, kho hngB-CNG THC TNH DNG CHO TI N Ia
:3543.50.620.241-n nung sng (n si t) v cc thit b nhit
Cos=155720.34a-Trng hp 3 pha901120.840.5Pn =aW1351590.73U
=380V1802160.98Ia = Pnx1000/(SQRT(3)xUxxCos)0Ampen kiu tit kim (c
hiu sut cao hn cng tc dng)b-Trng hp 1
pha2634.50.450.171.11.3515100200800012000Chiu sng ng t Chiu sng s
c, snga, kho hngPn =aW3646.50.22U =380V6680.50.39Ia =
Pnx1000/U0Ampe91105.50.492-n hunh quang v cc thit bi lin
quan:1311540.69a-Cc loi n ng qunh quang chun:n hi thu ngn + halide
kim loi (metal hilide)Pn =aW7080.510.41.73570906000Chiu sng ni rt
rng nh sn vn ngPballats = 25%Pn0W1501721.80.88U
=220V2502762.11.35Cos =0.6Khng c t b4004253.42.15Cos =0.86C t
b100010648.255.3Cos =0.96Nu dng Ballast in t20002092 205216.5
8.610.52000Ia = (Pn+Pballast)/(UxCos)0Ampen hi thu ngn + ph gia
hunh quang (n hunh quang)b-Cc loi n ng qunh quang compact: (Tng t
a)50570.60.31.72364060800012000Chiu sng phn xng sn xut c trn rt
caochiu sng ngoi tri chiu sng thp (c thay bng n natri)3-n phng in
(sodium cao p, thp p, Metal hilide, n hi thu
ngn):80900.80.451251411.150.72502682.151.35Loi thit bEquipment
TypeCng sutPowerin p VoltageTn sFrequence4004213.252.15My nc nng
trc tip Direct Water heater4.4-5.5 kW220 V50Hz7007315.43.85T
LnhRefrigerator200 L (100-150) W220 V50Hz100010468.255.3My
gitWashing machine500 W220 V50Hz20002140 20801511 6.1Bp inElectric
stove220 V50HzMy sy tayHandryer220 V50HzMy qutFan220 V50Hz6My iu ho
KKAir conditionor2 may 2500 W220 V50Hz19.04635.96Ni cm inElectric
Boiler rice1000 W220 V50Hz10.914Tivi21 inch 80W220 V50HzL Vi Ba1000
W220 V50Hz50.07698.448My nc nng gin tipIndirect water heater1.5-2.5
kWBn iLaudry1.1 kW220 V50Hz42.3724-Cng sut lnh cho
phng625.35930.359Din tch phng (m2)Cng sut lnh59 159000 BTU/h15
2012000 BTU/h20 3024000 BTU/h
Sheet2LOI TICC GI TR THNG S CA TIDNG INInCHN CBKHONG CCHT TI N
CBXC NH M LP TCC H S M LP TDNG DN (DNG Gi)CHN TIP DIN DY (mm2)TNH
TON NGN MCHKIM TRA ST P UCa: H s hiu chnh theo nhit mi trngCg: H s
hiu chnh theo nhm mch (s mch i cnh nhau)Ca: H s hiu chnh theo nhit
tr sut ca tCNG THCIz (A)1-ng c 3 pha:XABCIz=In/(CaxCgxCi)0Pn: Cng
sut ng ca0U : in p380Cos: H s cng sutb: Hiu sut ng ccIa =
Pnx1000/(SQRT(3)xUxxCos)
Bng tnh ton50M TTi (W)H s s dng v ng thiCng sut yu cu Pmax(W)H s
cng sutCosCng sut biu kin Smax (VA)Dng in nh mc In( A)Chn CBIn
(A)Icu (kA)Cc h s lp tDng in gi Iz(A)Chn tip din dy (mm2)Khong
Cch(m)Tng tr ca mch cn kim tra ngn mchDng ngn mchKim tra tn tht in
p URYBKuKsCaCgCiin tr R(m)in khng(m)in khng(m)Tng tr Z
(m)MSB35145351450.8541347.058823529462.82035668944P-100A334300.8539329.411764705959.75485913010.8503P-16Aabd020156.75no1.26.8558369292Khu
Nha an509OK0.720.72Tang 21-Distribution board floor 1
(DB1)6030no2.42.4Ligting + Fan
haust967.5920940112827.50.83534.3755.36992725712no00S.O.S45504900490010.7100450.812556.2519.077248204sum12872.50.816090.62524.447175461Tang
11-Distribution board floor 1 (DB1)0.88050OK44Ligting + Fan
haust5307608551121450.82681.254.07373791910S.O.S245010.717150.82143.753.25709115680sum38600.848257.3308290759Sum16732.50.820915.62531.7780045369Nha
lam viecTang 11-Distribution board floor 1 (DB1)Ligting + Fan
haust1025115012251134000.842506.457206958020S.O.S25002520250010.967680.8846012.8536402035sum131680.81646025.0083827128Tang
21-Distribution board floor 1 (DB1)0.8Ligting + Fan
haust1100110012001134000.842506.457206958S.O.S30803720585010.9113850.814231.2521.6221474169sum147850.818481.2528.079354374916202.515070174700.8sum51685.50.864606.87598.1599912441Tu
Dieu hoatang 1L1L2L3L4111610261080360tang2L1L2L3L4648882774360tang
3L1L2L3L482210441080450258629522934tang1L1L2L39 o
cam88tang2L1L2L3
Bng tra cpBNG TRA CP THEO DUNG LNG DNG DNCURRENT - CARRYING
CAPACITYIn (A)Phng thc lp t 52.1Reference methods 52.1S dy dn ti in
v cht cch inNumber of loaded conductors and type of
insulationA1PVC3Three PVCPVC2Two PVCXLPE3Three PVCXLPE2Two
XLPEA2PVC3Three PVCPVC2Two PVCXLPE3Three XLPEXLPE2Two
XLPEB1PVC3Three PVCPVC2Two PVCXLPE3Three XLPEXLPE2Two
XLPEB2PVC3Three PVCPVC2Two PVCXLPE3Three XLPEXLPE2Two
XLPECPVC3Three PVCPVC2Two PVCXLPE3Three XLPEXLPE2Two XLPEEPVC3Three
PVCPVC2Two PVCXLPE3Three XLPEXLPE2Two XLPEFPVC3Three PVCPVC2Two
PVCXLPE3Three XLPEXLPE2Two XLPE12345678910111213Size cable
(mm2)Coper
(ng)1.51313.514.515.51718.519.5222324262.517.51819.52123252730313336423242628313436404245496293134364043465154586310394246505460637075808616525661687380859410010711525687380899510111011912713514916135110117126137147158169185200501341411531671791922072252427017117919621322924626828931095207216238258278298328352377120239249276299322346382410437150285318344371395441473504185324362392424450506542575240380424461500538599641679
Bng tra cp cho m lp t DBNG TRA CP THEO DUNG LNG DNG DNCURRENT
-CARRYING CAPACITYIn (A)Phng thc lp t 52.1Installation methods
52.1SizeC dy mm2S dy dn ti in v cht cch inNumber of loaded
conductors and type of insulationCopper (Cu)Two PVC PVC2Three PVC
PVC3Two XLPE XLPE2Three XLPE
XLPE3D1.5221826222.5292434294383144376473956461063527361Dy dng nh
mc ca
CBMCB61016202532405063801681679579MCCB1520253040506075801001251501601752002252503004005006308001000125016002510486121101CB
theo TC IEC 6089861013162025324050638010012535125103146122CB theo
TC IEC
60947-225304050607580100125150160175200225250300400500630800100012501600501481221731447018315121317895216179252211120246203287240150278230324271185312258363304240361297419351300408336474396
CS ca cc TB inBNG TIU TH IN NNG CA MT S THIT BLOI THIT BCNG SUT
TRUNG BNH WkWH HNG NMkWH HNG THNGCh bin thc phmMy xay sinh t3001L
hp1140857Dao my929Pha caf8941069Ni chin1448837Ra chn a120136330Cho
trng516141Cho chin11961008a nng1200907My trn1272L vi sng145019016L
in: Loi thng T lm sch12200122001175120598100L nng1333605V nng
bnh1161333L hm1146393My p khun bnh400504V st1200202X l rc4457Bo qun
thc phmT cp ng (15-21 ft3) - Kh tuyt bng tay - Kiu ng Kh tuyt bng
tay Kh tuyt t ng1320
13201985110
110165T lnh / cp ng - Kh tuyt bng tay 10-15 ft3 - Kh tuyt t ng
16-18 ft3 - Kh tuyt t ng 20 ft3 v cao hn700
1795
189558150
158Git iMy sy qun o485699383Bn i (cm tay)1100605My gic - T ng -
Khng t ng5122861037696My nc nng - C cung cp cho git i - Khng cung
cp cho git i4500450060004800500400Sc kho v lm pn kh trng2014112My
sy tc381141n hng ngoi250131My co ru150.05n mt tri279161Bn chi
rng1.11B rung ng402Tin NghiRadio71867Radio/Cassette10910912Tivi -
Kiu n in t - Bn Dn2401455283204427My mc gia dngng h2171My lm sch sn
nh305151My may75111My ht bi630454
Tnh ton ngn mchA.Tng tr ca my bin p:S: Cng sut biu kin ca my bin
pAkVAUcs: in p ngn mch phn trmB%Pcu: Tn tht ngCkWU20: in p khng
ti399VZtr: Tng tr ca
MBA=U20^2*Ucs/(S*100)0mIn=S*1000/(sqrt(3)*U20)0ARtr: in tr my bin
p=Pcu*1000/(3In)0mXtr: in khng MBA= sqrt(Ztr^2-Rtr^2)0mB.Tng tr ng
dyL: Khong cchDmS: Tip din dyER: in tr ng dy=22.5*L/S0mX: in khng
ng dy(Nu S
