Bare Copper Conductors
STANDARDS
National : Factory standard
DESCRIPTION
ASTM B-3 Soft or Annealed Copper Wire. ASTM B-3 Specification details the requirements for solid wires and the individual wires in stranded conductors.
ASTM B-8 Concentric - Lay - Stranded Copper Conductors
Solid or stranded 100% conductivity copper conductors.
APPLICATION
Used for bonding and grounding electrical circuits and systems.
SOFT DRAWN BARE COPPER
US Units
Size AWG or kcmil |
Nominal Diameter |
Approximate Conductor Weight |
Nominal D.C. Resistance @ 25°C |
in | lbs/kft | Ω/kft | |
14 (1) | 0.064 | 12.4 | 2.57 |
12 (1) | 0.081 | 19.8 | 1.62 |
10 (1) | 0.102 | 31.4 | 1.02 |
8 (7) | 0.142 | 51 | 0.653 |
6 (7) | 0.179 | 81.1 | 0.411 |
4 (7) | 0.225 | 129 | 0.258 |
2 (7) | 0.283 | 205 | 0.163 |
1 (19) | 0.313 | 258 | 0.129 |
1/0 (19) | 0.352 | 325 | 0.102 |
2/0 (19) | 0.395 | 410 | 0.081 |
3/0 (19) | 0.443 | 518 | 0.064 |
4/0 (19) | 0.498 | 653 | 0.051 |
250 (37) | 0.542 | 772 | 0.043 |
300 (37) | 0.594 | 926 | 0.036 |
350 (37) | 0.641 | 1081 | 0.031 |
400 (37) | 0.685 | 1235 | 0.027 |
500 (37) | 0.766 | 1544 | 0.021 |
600 (61) | 0.84 | 1853 | 0.018 |
750 (61) | 0.939 | 2316 | 0.014 |
1000 (61) | 1.117 | 3088 | 0.011 |