Ntawm technologyElectronics

Hlau ntoo khaub lig seem rau installation thaiv

Hluav taws xob yog li ntawd nyob ruaj khov nyob rau hauv peb lub neej uas peb lub neej raws li yog hais transfixed los ntawm cia li hluav taws xob mov yog txiav, thiab peb saib rau pem hauv ntej rau txog thaum nws tau rebuilt. Peb yog surrounded los ntawm ib tug loj loj tus naj npawb ntawm ntau cov khoom siv uas muaj kev cob cog rau koj lub tsev network los ncaj qha los ntawm ib tug phab ntsa tso pa, los yog los ntawm extension cords, los yog nqa.

Tej zaum nws yog tsim nyog los tuav lub teeb nyob rau hauv lub chav nres tsheb los yog lwm yam outbuildings, hloov lub hlau los yog ua rau ib tug hauv tsev extension qaum. Los yog nws yog tsim nyog los mus laij lub siab tshaj plaws pes tsawg tus ntawm pab kiag li lawm yuav ib txhij muaj nyob rau hauv ib tug tee hais tias nws yog tsis sov hlau thiab ib tug hluav taws tsoo tawm vim luv luv Circuit Court. Nyob rau hauv xws li mob nws yog tsim nyog los ua ib tug pre-xam ntawm hlau ntau thiab tsawg pab yuav ntseeg nyob rau hauv kev ruaj ntseg ntawm cov ntsia thaiv.

Yuav ua li cas cable los xaiv?

Nws yog tsis muaj daim card uas tooj liab muaj ib tug tsawg dua kuj tshaj txhuas, thiab yog li ntawd thaum muab piv rau tooj liab thiab txhuas thaiv, nyob rau hauv uas hlau tib tus ntoo khaub lig seem, nyob rau hauv thawj cov ntaub ntawv, cov pub load yuav ua dog dig loj. Tooj hlau yog muaj zog, softer thiab zom tsis tau nyob rau hauv qhov chaw ntawm inflexion. Tsis tas li ntawd, tooj liab yog tsawg raug rau oxidation thiab corrosion. Lub tsuas kom zoo dua ntawm txhuas hlau yog nws nqi, uas yog peb los yog plaub lub sij hawm tsawg tshaj li tooj liab.

Muab xam los ntawm neeg xyuas pib ntoo khaub lig-section ntawm lub hwj chim

Tej hluav taws xob thaiv yuav tsum yoog mus rau lub kev cob cog rua load rau nws. Hlau loj yog xam los ntawm cov nyiaj pab ntau tshaj cov cua kub conductors. Tus nqi yog nyob ntawm cov cua kub hwj chim hluav taws xob plug. Yog li, los ntawm xam lub siab tshaj plaws tau tag nrho muaj peev xwm ntawm sab hauv tsev units, nws yog ua tau los mus txiav txim yog dab tsi yuav tsum yog tus hlau seem. Nyob rau hauv kev xyaum, qhov yooj yim rau siv online xam zauv los yog tshwj xeeb ntxhuav uas muaj cov lus qhia txog tam sim no nqa peev xwm ntawm lub cable.

Hlau ntoo khaub lig-section, mm²

Tooj hlau (cable, neeg xyuas pib)

Nro nyob rau hauv cov saw hlau 220

Nro nyob rau hauv cov saw hlau 380

lub hwj chim, kW

tam sim no, A

lub hwj chim, kW

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

Hlau ntoo khaub lig-section, mm²

Aluminium hlau (cable, neeg xyuas pib)

Nro nyob rau hauv cov saw hlau 220

Nro nyob rau hauv cov saw hlau 380

lub hwj chim. kW

amperage. A

lub hwj chim. kW

amperage. 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 mus xyuas cov hlau me me?

Txij li thaum cov nyob ntawm tej feem ntau yog muaj ib tug yeej cross-sectional zoo, lub hlais cheeb tsam no yog muab los xam siv cov mis:

S = π x d² / 4 los yog S = 0,8 x d², qhov twg
S - sectional thaj tsam ntawm lub conductors nyob rau hauv mm.kv.;
π - 3,14;
d - hlau txoj kab uas hla nyob rau hauv hli.

Xav hais tias piv txwv li hais tias cov hlau txoj kab uas hla yog 1.3 hli., Ces S = 0.8 0.8 • • 1,3² = 1.3 x 1.3 = 1,352 mm.kv.
Yog hais tias cov hlau yog muaj li ntawm ob peb conductors, nws yog suav tias yog ib tug tub ntxhais seem thiab khoo los ntawm tag nrho cov xov tooj ntawm cov nqaj. Cov kab uas hla feem ntau yog ntsuas nrog ib tug caliper, tab sis, yog hais tias tsis tau, ces haum li ib txwm txoj kab. Nyob rau hauv cov ntaub ntawv no, lub nruj nreem txhab rau tus xaum txog 10-15 lem ntawm winding ntsuas kab ntev thiab faib lub tau tus nqi los ntawm tus xov tooj ntawm koj lem.

Nyob rau hauv txhua eletromontazhnyh tej hauj lwm yuav tsum nco ntsoov hais tias hluav taws xob tsis ua siab ntev tsis saib xyuas thiab tsis zam txim rau yuam kev. Hluav taws xob cov muaj kev ruaj ntseg thiab kev cia siab - qhov no yog dab tsi koj yuav tsum nco ntsoov mus nrhiav kev pab thaum ua tej yam hluav taws xob thaiv nyob rau hauv ib tug tsev, tsev los yog lub tsev.

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