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Dè a th’ ann an American Wire Gauge (AWG)?

Is e American Wire Gauge (AWG) an dòigh àbhaisteach air meud uèir a chomharrachadh ann an Ameireaga a Tuath.Ann an AWG, mar as motha an àireamh, is ann as lugha a bhios trast-thomhas na h-uèir agus tiugh.Is e am meud àbhaisteach as motha 0000 AWG, agus is e 40 AWG am meud àbhaisteach as lugha.Is dòcha gur e inneal-tomhais uèir Brown & Sharpe a chanar ris cuideachd no dìreach tomhas na h-uèir.

Tha AWG airson uèir shingilte, chruaidh, chruinn, giùlain le dealan.Chaidh a thoirt a-steach an toiseach ann an 1857 mar inbhe airson a dhol an àite nan diofar thomhasan a chleachd diofar luchd-saothrachaidh.Tha cleachdadh àireamhan nas motha a’ comharrachadh uèirichean nas lugha coltach ri Standard Wire Gauge, a thathas a’ cleachdadh ann am Breatainn.Bidh a’ mhòr-chuid de dhùthchannan eile a’ cleachdadh ìre meatrach eadar-nàiseanta de chrois-earrann uèir ann am millimeters ceàrnagach (mm2) air a mhìneachadh ann an Coimisean Electrotechnical Eadar-nàiseanta 60228.

Chan eil meud AWG a 'toirt a-steach meud an insulation a' dìon uèir.

Tha 0000 AWG air a mhìneachadh mar 0.46 òirleach ann an trast-thomhas, agus tha 36 AWG air a mhìneachadh mar 0.005 òirleach ann an trast-thomhas.Tha a h-uile meud eile air a thoirt a-mach mar cheumannan logarithmach eadar an dà mheud comharraichte seo.Tha 39 ceumannan tomhais eadar na meudan sin, agus tha an co-mheas 1-gu-92 ann an trast-thomhas.Mar sin, is e gach ceum AWG an 39mh freumh de 92, no timcheall air 1.12293 uair an atharrachaidh ann an trast-thomhas.

Faodaidh uèir tomhas nas lugha (meud nas motha) barrachd dealain a ghiùlan gu sàbhailte na uèir tomhas nas motha (meud nas lugha).Le bhith a’ lùghdachadh meud AWG uèir le trì dùblaidh e farsaingeachd tar-roinneil uèir agus dùblaidh e an ìre de shruth as urrainn dha a ghiùlan.Le bhith ag atharrachadh meud AWG le 10 atharraichidh sin a’ chrois-earrainn deich uiread.

Leis nach eil alùmanum cho math ri inneal-stiùiridh ri copar, airson obrachadh a-mach dè an ìre de shruth a dh’ fhaodas uèir alùmanum a ghiùlan an taca ri tè copair, smaoinich air mar AWG 2-thomhas nas motha.

 
AWG
Trast-thomhas
Sgìre
(mm2)
seadh
(ohm/km)
AWG
Trast-thomhas
Sgìre
(mm2)
seadh
(ohm/km)
Ach mm
òirleach
Ach mm
òirleach
4/0
11.68
0.46
107.22
0.17
22
0.643
0.0253
0.3247
54.3
3/0
10.40
0.4096
85.01
0.21
23
0.574
0.0226
0.2588
66.8
2/0
9.27
0.3648
67.43
0.26
24
0.511
0.0201
0.2047
89.4
1/0
8.25
0.3249
53.49
0.33
25
0.44
0.0179
0.1624
106
1
7.35
0.2893
42.41
0.42
26
0.404
0.0159
0.1281
143
2
6.54
0.2576
33.62
0.53
27
0.361
0.0142
0.1021
168
3
5.83
0.2294
26.67
0.66
28
0.32
0.0126
0.0804
227
4
5.19
0.2043
21.15
0.84
29
0.287
0.0113
0.0647
289
5
4.62
0.1819
16.77
1.06
30
0.254
0.0100
0.0507
361
6
4.11
0.1620
13.30
1.33
31
0.226
0.0089
0.0401
430
7
3.67
0.1443
10.55
1.68
32
0.203
0.0080
0.0316
583
8
3.26
0.1285
8.37
2.11
33
0.18
0.0071
0.0255
944
9
2.91
0.1144
6.63
2.67
34
0.16
0.0063
0.0201
956
10
2.59
0.1019
5.26
3.36
35
0. 142
0.0056
0.0169
1,200
11
2.30
0.0907
4.17
4.24
36
0. 127
0.0050
0.0127
1,530
12
2.05
0.0808
3. 332
5.31
37
0.114
0.0045
0.0098
1,788
13
1.82
0.0720
2.627
6.69
38
0.102
0.0040
0.0081
2,400
14
1.63
0.0641
2.075
8.45
39
0.089
0.0035
0.0062
2,740
15
1.45
0.0571
1.646
10.6
40
0.079
0.0031
0.0049
4,080
16
1.29
0.0508
1. 318
13.5
41
0.071
0.0028
0.0040
4,264
17
1.15
0.0453
1.026
16.3
42
0.064
0.0025
0.0032
6,300
18
1.02
0.0403
0.8107
21.4
43
0.056
0.0022
0.0025
6,936
19
0.912
0.0359
0.5667
26.9
44
0.051
0.0020
0.0020
9,180
20
0.813
0.0320
0.5189
33.9
45
0.046
0.0018
0.0016
10,200
21
0.724
0.0285
0.4116
42.7
46
0.041
0.0016
0.0013
16,300

 

 
AWG adh
截面积
(mm2)
seadh
(ohm/km)
 AWG Trast-thomhas
截面积
(mm2)
seadh
(ohm/km)
Ach mm òirleach Ach mm òirleach
4/0 11.68 0.46 107.22 0.17 22 0.643 0.0253 0.3247 54.3
3/0 10.40 0.4096 85.01 0.21 23 0.574 0.0226 0.2588 66.8
2/0 9.27 0.3648 67.43 0.26 24 0.511 0.0201 0.2047 89.4
1/0 8.25 0.3249 53.49 0.33 25 0.44 0.0179 0.1624 106
1 7.35 0.2893 42.41 0.42 26 0.404 0.0159 0.1281 143
2 6.54 0.2576 33.62 0.53 27 0.361 0.0142 0.1021 168
3 5.83 0.2294 26.67 0.66 28 0.32 0.0126 0.0804 227
4 5.19 0.2043 21.15 0.84 29 0.287 0.0113 0.0647 289
5 4.62 0.1819 16.77 1.06 30 0.254 0.0100 0.0507 361
6 4.11 0.1620 13.30 1.33 31 0.226 0.0089 0.0401 430
7 3.67 0.1443 10.55 1.68 32 0.203 0.0080 0.0316 583
8 3.26 0.1285 8.37 2.11 33 0.18 0.0071 0.0255 944
9 2.91 0.1144 6.63 2.67 34 0.16 0.0063 0.0201 956
10 2.59 0.1019 5.26 3.36 35 0. 142 0.0056 0.0169 1,200
11 2.30 0.0907 4.17 4.24 36 0. 127 0.0050 0.0127 1,530
12 2.05 0.0808 3. 332 5.31 37 0.114 0.0045 0.0098 1,788
13 1.82 0.0720 2.627 6.69 38 0.102 0.0040 0.0081 2,400
14 1.63 0.0641 2.075 8.45 39 0.089 0.0035 0.0062 2,740
15 1.45 0.0571 1.646 10.6 40 0.079 0.0031 0.0049 4,080
16 1.29 0.0508 1. 318 13.5 41 0.071 0.0028 0.0040 4,264
17 1.15 0.0453 1.026 16.3 42 0.064 0.0025 0.0032 6,300
18 1.02 0.0403 0.8107 21.4 43 0.056 0.0022 0.0025 6,936
19 0.912 0.0359 0.5667 26.9 44 0.051 0.0020 0.0020 9,180
20 0.813 0.0320 0.5189 33.9 45 0.046 0.0018 0.0016 10,200
21 0.724 0.0285 0.4116 42.7 46 0.041 0.0016 0.0013 16,300

 

Ùine puist: Lùnastal-01-2022
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