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ASTM International - ASTM F1883-03(2013)

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

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Organization: ASTM International
Publication Date: 1 May 2013
Status: inactive
Page Count: 3
ICS Code (Electrical wires and cables in general): 29.060.01
significance And Use:

3.1 The selection criteria is to be applied for uses of (1) new cable and (2) replacement cable.

3.2 For the selection of new cable or the selection of replacement cable, this... View More

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.

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

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
  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.

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.

1.3 As 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.

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

Document History

June 1, 2020
Standard Practice for Selection of Wire and Cable Size in AWG or Metric Units
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...
ASTM F1883-03(2013)
May 1, 2013
Standard Practice for Selection of Wire and Cable Size in AWG or Metric Units
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...
May 1, 2008
Standard Practice for Selection of Wire and Cable Size in AWG or Metric Units
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...
May 10, 2003
Standard Practice for Selection of Wire and Cable Size in AWG or Metric Units
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...
May 10, 1998
Standard Practice for Selection of Wire and Cable Size in AWG or Metric Units
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...
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