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  • ASTM F 1883 : 2003 : R2013

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    Standard Practice for Selection of Wire and Cable Size in AWG or Metric Units

    Available format(s):  Hardcopy, PDF

    Superseded date:  28-08-2020

    Language(s):  English

    Published date:  01-05-2013

    Publisher:  American Society for Testing and Materials

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    Abstract - (Show below) - (Hide below)

    CONTAINED IN VOL. 01.07, 2017 Describes 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.

    Scope - (Show below) - (Hide below)

    1.1This 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.

    1.2The 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.

    TABLE 1 Conversion Table—AWG/Metric Preferred Sizes of Conductors

    Size
    Metric,
    mm 2

    Size
    AWG/MCM

    Area in
    Circ Mils
    (Nominal)

    AmpacityA

    dc Resistances at 20°CB

    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

    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

    A Ampacity of single-conductor cable in air at ambient temperature of 30°C and maximum conductor temperature not exceeding 60°C.
    B Temperature correction: the conductor resistance may be corrected for moderate temperature differences from the noted reference temperature by the following equation. The parameter, αT, varies with conductivity and temperature. For a list of common temperature coefficients see Test Methods B193.

    Equation F1883-03R13_1

    where:
    RT = resistance at reference temperature T,
    Rt = resistance as measured at temperature t,
    αT = known or given temperature coefficient of resistance of the conductor being measured at reference temperature T. At 20°C, the value is 0.003 93,
    T = reference temperature, and
    t = temperature at which measurement is made.

    C An asterisk (*) indicates preferred sizes for wires of American Wire Gauge or per IEC 60228 (metric) as appropriate.

    1.3As a precautionary caveat, some conductor sizes listed in Table 1 may exceed minimal size requirements of the U.S. Coast Guard, the American Bureau of Shipping, and IEEE STD 45 for specific applications.

    1.4The values stated for ampacity and dc resistance are presented as maximum values and are provided for information only.

    General Product Information - (Show below) - (Hide below)

    Committee F 25
    Document Type Standard Practice
    Product Note Reconfirmed 2013
    Publisher American Society for Testing and Materials
    Status Superseded
    Superseded By
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60228:2004 Conductors of insulated cables
    ASTM B 193 : 2016 : REDLINE Standard Test Method for Resistivity of Electrical Conductor Materials
    IEC 60092-350:2014 Electrical installations in ships - Part 350: General construction and test methods of power, control and instrumentation cables for shipboard and offshore applications
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