ASTM F1883-98

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

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 annealed copper conductors in accordance with AWG (Specification B 8) English units or IEC (IEC 228) metric units.  
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 typical values and are provided for information only.

General Information

• Status: Historical
• Publication Date: 09-May-1998
• ICS: 29.060.01 - Electrical wires and cables in general
• Technical Committee: F25 - Ships and Marine Technology
• Drafting Committee: F25.10 - Electrical

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation: F 1883 – 98
Standard Practice for
Selection of Wire and Cable Size in AWG or Metric Units
This standard is issued under the fixed designation F 1883; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope
TABLE 1 Continued
B
1.1 This practice is intended as a guide to shipbuilders,
dc Resistances at 20°C
Size Area in
Size
A
shipowners, and design agents for use in the selection of
Metric, Circ Mils Ampacity
Ohms Ohms
AWG/MCM
mm (Nominal)
per 1000 ft per km
conductor size for single conductor or multiple conductor cable
sizes either in American Wire Gauge (AWG) or metric desig-
150* 296 000 372 0.0353 0.1157
250* 250 000 340 0.0423 0.1388
nations for commercial ship design and construction.
120* 237 000 327 0.0436 0.1492
1.2 The comparison chart of electrical conductor sizes
4/0* 211 600 300 0.0500 0.1639
shown in Table 1 presents a combined listing of international
95* 187 000 265 0.0551 0.1808
3/0* 167 000 260 0.0631 0.2065
standard sizes of annealed copper conductors in accordance
70* 138 000 230 0.0752 0.2467
with AWG (Specification B 8) English units or IEC (IEC 228)
2/0* 133 100 225 0.0794 0.2605
metric units.
1/0* 105 600 195 0.1002 0.3288
50* 98 000 185 0.1044 0.3424
1.3 As a precautionary caveat, some conductor sizes listed
1 83 690 165 0.1261 0.4139
in Table 1 may exceed minimal size requirements of the U.S.
35* 69 100 144 0.1495 0.4904
Coast Guard, the American Bureau of Shipping, and IEEE STD
2* 66 360 140 0.1588 0.5211
3 52 620 120 0.2005 0.6577
45 for specific applications.
25* 49 300 115 0.2057 0.6748
1.4 The values stated for ampacity and dc resistance are
4* 41 740 105 0.2528 0.8295
presented as typical values and are provided for information 16* 31 600 89 0.3259 1.069
6* 26 240 80 0.4023 1.320
only.
10* 19 700 63 0.5167 1.695
8* 16 510 55 0.6380 2.093
TABLE 1 Conversion Table—AWG/Metric Preferred Sizes of
6.0* 11 800 43 0.8543 2.803
Conductors 10* 10 380 40 1.017 3.335
4.0* 7 890 30 1.304 4.277
B 12* 6 530 25 1.620 5.315
dc Resistances at 20°C
Size Area in
Size 2.5* 4 930 22 2.067 6.782
A
Metric, Circ Mils Ampacity
Ohms Ohms
AWG/MCM 14* 4 110 20 2.573 8.442
mm (Nominal)
per 1000 ft per km
1.5* 2 960 . . . 3.417 11.21
C 16* 2 580 . . . 4.020 13.19
2000* 2 000 000 1155 0.0053 0.0174
1.0* 1 970 . . . 5.213 17.11
1000* 1 970 000 1145 0.0054 0.0176
0.90 1 773 . . . 6.45 21.10
1750* 1 750 000 1070 0.0063 0.0199
18* 1 620 . . . 6.82 20.95
800* 1 580 000 1009 0.0067 0.0218
0.80 1 576 . . . 6.52 21.40
1500* 1 500 000 980 0.0071 0.0232
0.75* 1 480 . . . 6.82 22.37
1250* 1 250 000 890 0.0085 0.0278
0.60* 1 182 . . . 9.5 31.16
630* 1 240 000 886 0.0096 0.0280
20* 1 020 . . . 10.5 34.45
1000* 1 000 000 780 0.0106 0.0347
0.50* 987 . . . 11.4 37.40
500* 987 000 772 0.0105 0.0347
22* 640 . . . 16.9 55.44
400* 789 000 675 0.0133 0.0438
0.20* 24* 404 . . . 26.7 87.60
750* 750 000 655 0.0141 0.0463
26* 253 . . . 43.6 143.04
600* 600 000 575 0.0176 0.0578
A
300* 592 000 570 0.0211 0.0580
Ampacity of single-conductor cable in air at ambient temperature of 30°C and
500* 500 000 515 0.0211 0.0694
maximum conductor temperature not exceeding 60°C.
B
240* 474 000 499 0.0219 0.0720
Temperature correction: the conductor resistance may be corrected for mod-
400* 400 000 455 0.0264 0.0867
erate temperature differences from the noted reference temperature by the
185* 365 000 431 0.0286 0.0938
following equation. The parameter, aT, varies with conductivity and temperature.
350* 350 000 420 0.0302 0.0990
For a list of common temperature coefficients see Test Methods B 193.
300* 300 000 375 0.0353 0.1157
R 5 R @ 11a ~t 2 T! # (1)
T t T
where:
R = resistance at reference temperature T,
T
1 R = resistance as measured at temperature t,
t
This specification is under the jurisdiction of ASTM Committee F-25 on Ships
a = known or given temperature coefficient of resistance of the conductor
T
and Marine Technology and is the direct responsibility of Subcommittee F25.10 on
being measured at reference temperature T. At 20°C, the value is
Electrical.
0.003 93,
Current edition approved May 10, 1998. Published October 1998.
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