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NEPLATNÁ ASTM F1883-03(2013) 1.5.2013 náhled

Doplňující informace

ASTM F1883-03(2013)

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

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Informace o normě:

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

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Kategorie - podobné normy:

Elektrické dráty a kabely obecně

Anotace textu normy ASTM F1883-03(2013) :

Keywords:
AWG conductor sizes, cable selection, conductor comparison, metric conductor sizes, ICS Number Code 29.060.01 (Electrical wires and cables in general)

Doplňující informace

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
Metric,
mm ²

Size
AWG/MCM

Area in
Circ Mils
(Nominal)

Ampacity^A

dc Resistances at 20°C^B

Ohms
per 1000 ft

Ohms
per km

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

83 690

165

0.1261

0.4139

35*

69 100

144

0.1495

0.5290

66 360

140

0.1588

0.5211

52 620

120

0.2005

0.6577

25*

49 300

115

0.2057

0.7340

41 740

105

0.2528

0.8295

16*

31 600

0.3259

1.160

26 240

0.4023

1.320

10*

19 700

0.5167

1.840

16 510

0.6380

2.093

6.0*

11 800

0.8543

3.110

10*

10 380

1.017

3.335

4.0*

7 890

1.304

4.700

12*

6 530

1.620

5.315

2.5*

4 930

2.067

7.560

14*

4 110

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:
R_T	=	resistance at reference temperature R_t	=	resistance as measured at temperature α_T	=	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.

1.3 As a precautionary caveat, some conductor sizes listed in 1.4 The values stated for ampacity and dc resistance are presented as maximum values and are provided for information only.

2. Referenced Documents

IEC 60092-350	Electrical Installations in Ships--Part 350: Shipboard Power: Cables--General Construction and Test Requirements
IEC 60228	Conductors of Insulated Cables
B8-23	Standard Specification for Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
IEEE STD 45	Recommended Practice for Electric Installations on Shipboard
B193-20	Standard Test Method for Resistivity of Electrical Conductor Materials