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Nec Voltage Drop: aluminum
2000 kcmil to 500 kcmil
NEC Chapter 9 Table 8 wire resistance and reactance data — DC resistance, AC resistance, and reactance for copper and aluminum conductors in PVC and steel conduit
| conductor material | conductor size | ac reactance ohm per kft pvc (ohm/kft) | ac reactance ohm per kft steel (ohm/kft) | ac resistance ohm per kft pvc (ohm/kft) | ac resistance ohm per kft steel (ohm/kft) | area cmil (cmil) | dc resistance ohm per kft uncoated (ohm/kft) | nec table | standard | stranding |
|---|---|---|---|---|---|---|---|---|---|---|
| aluminum | 250 kcmil | 0.041 | 0.052 | 0.085 | 0.086 | 250,000 | 0.0847 | chapter9 table8 | NEC Chapter 9 Table 8 | 37 |
| aluminum | 3 AWG | 0.047 | 0.059 | 0.4 | 0.4 | 52,620 | 0.403 | chapter9 table8 | NEC Chapter 9 Table 8 | 7 |
| aluminum | 3/0 AWG | 0.042 | 0.052 | 0.13 | 0.13 | 167,800 | 0.126 | chapter9 table8 | NEC Chapter 9 Table 8 | 19 |
| aluminum | 300 kcmil | 0.041 | 0.051 | 0.071 | 0.072 | 300,000 | 0.0707 | chapter9 table8 | NEC Chapter 9 Table 8 | 37 |
| aluminum | 350 kcmil | 0.04 | 0.05 | 0.061 | 0.063 | 350,000 | 0.0605 | chapter9 table8 | NEC Chapter 9 Table 8 | 37 |
| aluminum | 4 AWG | 0.048 | 0.06 | 0.51 | 0.51 | 41,740 | 0.508 | chapter9 table8 | NEC Chapter 9 Table 8 | 7 |
| aluminum | 4/0 AWG | 0.041 | 0.051 | 0.1 | 0.1 | 211,600 | 0.1 | chapter9 table8 | NEC Chapter 9 Table 8 | 19 |
| aluminum | 400 kcmil | 0.04 | 0.049 | 0.054 | 0.055 | 400,000 | 0.0529 | chapter9 table8 | NEC Chapter 9 Table 8 | 37 |
| aluminum | 500 kcmil | 0.039 | 0.048 | 0.043 | 0.045 | 500,000 | 0.0424 | chapter9 table8 | NEC Chapter 9 Table 8 | 37 |
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