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Standard Practice for Selection of Wire and Cable Size in AWG or Metric Units
Automaticky přeložený název:
Standardní praxe pro výběr vodičů a kabelů Velikost in AWG nebo metrických jednotkách
NORMA vydána dne 1.5.2013
Označení normy: ASTM F1883-03(2013)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.5.2013
Kód zboží: NS-51946
Počet stran: 3
Přibližná hmotnost: 9 g (0.02 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
AWG conductor sizes, cable selection, conductor comparison, metric conductor sizes, ICS Number Code 29.060.01 (Electrical wires and cables in general)
Significance and Use | |||||
3.1 The selection criteria is to be applied for uses of (1) new cable and (3.2 For the selection of new cable or the selection of replacement cable, this practice defines the choice criteria for conductor selection for cables in AWG (ASTM) or metric (IEC) sizes. |
|||||
1. Scope | |||||
1.1 This practice is intended as a guide to shipbuilders, shipowners, and design agents for use in the selection of conductor size for single conductor or multiple conductor cable sizes either in American Wire Gauge (AWG) or metric designations for commercial ship design and construction. 1.2 The comparison chart of electrical conductor sizes shown in Table 1 presents a combined listing of international standard sizes of Class 2 stranded copper conductors in accordance with AWG (Specification B8) English units or IEC (IEC 60228) metric units. Size |
Size |
Area in |
AmpacityA |
dc Resistances at 20°CB |
|
Ohms |
Ohms |
||||
|
2000*C |
2 000 000 |
1155 |
0.0053 |
0.0177 |
1000* |
|
1 970 000 |
1145 |
0.0054 |
0.0176 |
|
1750* |
1 750 000 |
1070 |
0.0063 |
0.0199 |
800* |
|
1 580 000 |
1009 |
0.0067 |
0.0224 |
|
1500* |
1 500 000 |
980 |
0.0071 |
0.0232 |
|
1250* |
1 250 000 |
890 |
0.0085 |
0.0278 |
630* |
|
1 240 000 |
886 |
0.0096 |
0.0286 |
|
1000* |
1 000 000 |
780 |
0.0106 |
0.0347 |
500* |
|
987 000 |
772 |
0.0105 |
0.0369 |
400* |
|
789 000 |
675 |
0.0133 |
0.0475 |
|
750* |
750 000 |
655 |
0.0141 |
0.0463 |
|
600* |
600 000 |
575 |
0.0176 |
0.0578 |
300* |
|
592 000 |
570 |
0.0211 |
0.0607 |
|
500* |
500 000 |
515 |
0.0211 |
0.0694 |
240* |
|
474 000 |
499 |
0.0219 |
0.0762 |
|
400* |
400 000 |
455 |
0.0264 |
0.0867 |
185* |
|
365 000 |
431 |
0.0286 |
0.1000 |
|
350* |
350 000 |
420 |
0.0302 |
0.0990 |
|
300* |
300 000 |
375 |
0.0353 |
0.1157 |
150* |
|
296 000 |
372 |
0.0353 |
0.1260 |
|
250* |
250 000 |
340 |
0.0423 |
0.1388 |
120* |
|
237 000 |
327 |
0.0436 |
0.1540 |
|
4/0* |
211 600 |
300 |
0.0500 |
0.1639 |
95* |
|
187 000 |
265 |
0.0551 |
0.1950 |
|
3/0* |
167 000 |
260 |
0.0631 |
0.2065 |
70* |
|
138 000 |
230 |
0.0752 |
0.2700 |
|
2/0* |
133 100 |
225 |
0.0794 |
0.2605 |
|
1/0* |
105 600 |
195 |
0.1002 |
0.3288 |
50* |
|
98 700 |
185 |
0.1044 |
0.3910 |
|
1 |
83 690 |
165 |
0.1261 |
0.4139 |
35* |
|
69 100 |
144 |
0.1495 |
0.5290 |
|
2* |
66 360 |
140 |
0.1588 |
0.5211 |
|
3 |
52 620 |
120 |
0.2005 |
0.6577 |
25* |
|
49 300 |
115 |
0.2057 |
0.7340 |
|
4* |
41 740 |
105 |
0.2528 |
0.8295 |
16* |
|
31 600 |
89 |
0.3259 |
1.160 |
|
6* |
26 240 |
80 |
0.4023 |
1.320 |
10* |
|
19 700 |
63 |
0.5167 |
1.840 |
|
8* |
16 510 |
55 |
0.6380 |
2.093 |
6.0* |
|
11 800 |
43 |
0.8543 |
3.110 |
|
10* |
10 380 |
40 |
1.017 |
3.335 |
4.0* |
|
7 890 |
30 |
1.304 |
4.700 |
|
12* |
6 530 |
25 |
1.620 |
5.315 |
2.5* |
|
4 930 |
22 |
2.067 |
7.560 |
|
14* |
4 110 |
20 |
2.573 |
8.442 |
1.5* |
|
2 960 |
. . . |
3.417 |
12.20 |
|
16* |
2 580 |
. . . |
4.020 |
13.19 |
1.0* |
|
1 970 |
. . . |
5.213 |
18.20 |
0.90 |
|
1 773 |
. . . |
6.45 |
21.10 |
|
18* |
1 620 |
. . . |
6.82 |
20.95 |
0.80 |
|
1 576 |
. . . |
6.52 |
21.40 |
0.75* |
|
1 480 |
. . . |
6.82 |
24.80 |
0.60* |
|
1 182 |
. . . |
9.5 |
31.16 |
|
20* |
1 020 |
. . . |
10.5 |
34.45 |
0.50* |
|
987 |
. . . |
11.4 |
36.70 |
|
22* |
640 |
. . . |
16.9 |
55.44 |
0.20* |
24* |
404 |
. . . |
26.7 |
87.60 |
|
26* |
253 |
. . . |
43.6 |
143.04 |
where: |
||||||||
RT |
= |
resistance at reference temperature Rt |
= |
resistance as measured at temperature αT |
= |
known or given temperature coefficient of resistance of the conductor being measured at reference temperature T |
= |
reference temperature, and |
t |
= |
temperature at which measurement is made. |
IEC 60092-350 |
Electrical Installations in Ships--Part 350: Shipboard Power: Cables--General Construction and Test Requirements |
IEC 60228 |
Conductors of Insulated Cables |
Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft |
|
IEEE STD 45 |
Recommended Practice for Electric Installations on Shipboard |
Standard Test Method for Resistivity of Electrical Conductor Materials |
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