Hluav taws xob tau dhau los ua ib feem ntawm peb lub neej uas muaj hluav taws xob tam sim ntawd, peb lub neej zoo li khov, thiab peb tos ntsoov yuav rov qab los. Peb nyob ib puag ncig los ntawm ntau yam khoom siv hluav taws xob sib txawv uas txuas nrog lub network hauv tsev ncaj qha los ntawm cov qhov (socket) lossis los ntawm
extension cords or carriers.
Qee zaus nws yuav tsum coj lub teeb mus rau lub tsev nres tsheb lossis mus rau lwm qhov kev tsim kho, hloov cov xaim lossis ua ib qho txuas txuas hauv tsev. Los yog koj yuav tsum xam cov khoom siv ntau tshaj plaws uas tuaj yeem txuas nrog ib lub tee kom cov hlau tsis kub hauv nws thiab hluav taws tsis tshwm sim vim qhov luv luv. Nyob rau hauv cov ntaub ntawv no, koj yuav tsum xub xam tus ntoo khaub lig-section ntawm cov xov hlau nyob rau hauv thiaj li yuav paub tseeb txog kev ruaj ntseg ntawm cov ntsia hlau.
Xaiv kab twg?
Nws tsis muaj qhov zais cia tias tooj liab muaj qhov tsis muaj zog dua li txhuas, thiab yog li ntawd yog tias peb piv cov tooj liab thiab txhuas hlau, uas muaj tib cov hlau hla ntu, ces thawj qhov kev tso cai yuav loj dua me ntsis. Copper hlau muaj zog dua, softer thiab yuav tsis tawgnyob rau hauv qhov chaw ntawm inflection. Tsis tas li ntawd, tooj liab tsis tshua muaj oxidation thiab corrosion. Qhov zoo ntawm txhuas hlau tsuas yog nws cov nqi, uas yog peb lossis plaub zaug tsawg dua tooj liab.
Xaiv ntawm cov hlau seem los ntawm lub zog
Txhua qhov kev xaim hluav taws xob yuav tsum tsim nyog rau kev thauj khoom txuas nrog nws. Qhov hla ntawm cov hlau yog xam raws li qhov siab tshaj plaws tso cua sov ntawm cov tub ntxhais uas nqa tam sim no. Tus nqi cua sov nyob ntawm lub zog ntawm cov khoom siv hluav taws xob txuas nrog. Yog li, los ntawm kev xam qhov siab tshaj plaws tau tag nrho lub zog ntawm cov cuab yeej hauv chav, koj tuaj yeem txiav txim siab seb lub xaim hla yuav tsum yog dab tsi. Hauv kev xyaum, nws yooj yim siv lub laij lej online lossis cov rooj tshwj xeeb uas muaj cov ntaub ntawv hais txog qhov tso cai tam sim no ntawm lub cable.
Wire section, sq.mm |
tooj liab (cable, core) |
|||
| Chain voltage, 220V |
Chain voltage, 380V |
|||
| zog, kW | lub zog tam sim no, A | zog, kW | lub zog tam sim no, A | |
1.5 |
4.1 | 19 | 10.5 | 16 |
2.5 |
5.9 | 27 | 16.5 | 25 |
4 |
8.3 | 38 | 19.8 | 30 |
6 |
10.1 | 46 | 26.4 | 40 |
10 |
15.4 | 70 | 33.0 | 50 |
16 |
18.7 | 85 | 49.5 | 75 |
25 |
25.3 | 115 | 59.4 | 90 |
35 |
29.7 | 135 | 75.9 | 115 |
50 |
38.5 | 175 | 95.7 | 145 |
70 |
47.3 | 215 | 118.8 | 180 |
95 |
57.2 | 260 | 145.2 | 220 |
120 |
66.0 | 300 | 171.6 | 260 |
Wire section, sq.mm |
Aluminium hlau (cable, tub ntxhais) |
|||
|
Chain voltage, 220V |
Chain voltage, 380V | |||
| zog. kW | lub zog tam sim no. A | zog. kW | lub zog tam sim no. A | |
2.5 |
4.4 | 20 | 12.5 | 19 |
4 |
6.1 | 28 | 15.1 | 23 |
6 |
7.9 | 36 | 19.8 | 30 |
10 |
11.0 | 50 | 25.7 | 39 |
16 |
13.2 | 60 | 36.3 | 55 |
25 |
18.7 | 85 | 46.2 | 70 |
35 |
22.0 | 100 | 56.1 | 85 |
50 |
29.7 | 135 | 72.6 | 110 |
70 |
36.3 | 165 | 92.4 | 140 |
95 |
44.0 | 200 | 112.2 | 170 |
120 |
50.6 | 230 | 132.0 | 200 |
Yuav ua li cas txheeb xyuas cov hlau loj?
Vim cov xov hlau feem ntau muaj qhov sib npaug ntawm qhov sib npaug, thaj tsam txiav yog xam los ntawm cov qauv:
S=π x d² / 4 los yog S=0.8 x d², qhov twg
S yog qhov chaw hla ntawm cov tub ntxhais hauv mm.sq.;
π - 3, 14; d - tub ntxhais txoj kab uas hla hauv mm.
xav tias, piv txwv li, cov xaim txoj kab uas hla yog 1.3 mm., ces S=0.8 • 1. 3²=0.8 • 1. 3 x 1. 3=1.352 mm2
Yog tias cov xaim muaj ob peb cores, ces qhov hla ntawm ib qho tseem ceeb raug txiav txim siab thiab muab faib los ntawm lawv tus lej tag nrho hauv cov pob. Txoj kab uas hla feem ntau yog ntsuas nrog lub caliper, tab sis yog tias nws tsis muaj, ces tus kav ntev yuav ua. Nyob rau hauv cov ntaub ntawv no, kwv yees li 10-15 lem yog nruj nreem kaw rau ntawm ib tug cwj mem, lub winding ntev yog ntsuas nrog ib tug pas ntsuas thiab qhov tshwm sim tus nqi yog muab faib los ntawm tus naj npawb ntawm lem.
Hauv kev ua haujlwm hluav taws xob, koj yuav tsum nco ntsoov tias hluav taws xob tsis zam qhov kev ua tsis raug cai thiab tsis zam txim rau qhov yuam kev. Kev nyab xeeb hluav taws xob thiab kev ntseeg siab - qhov no yog qhov koj yuav tsum tau siv zog ib txwm ua thaum ua haujlwm nrog cov xaim hluav taws xob hauv chav tsev, hauv tsev hauv tsev lossis hauv tsev.
