Stranding Classes
Concentric-Lay Conductors
CLASS B: Power Cables.
CLASS C: Power cables where more flexible stranding than Class B is desired.
CLASS D: Power cables where extra flexible stranding is desired.
Rope-Lay & Bunch Stranded Conductors
CLASS G: All cables for portable use.
CLASS H: Cables where extreme flexibility is required. (i.e. take-up reels)
CLASS I: Apparatus cable and motor leads.
CLASS K: Cords and cables composed of No. 30 AWG copper wires. Stationary service.
CLASS M: Cords and cables composed of No. 34 AWG copper wires. Constant service.
| Class | 14-2 AWG |
1-4/0 AWG |
250-500 MCM |
|---|---|---|---|
| B | 7 | 19 | 37 |
| C | 19 | 37 | 61 |
| D | 37 | 61 | 91 |
| G | 49 | 133 | 259 |
| H | 133 | 259 | 427 |
| I | Combinations of 24 AWG Wires | ||
| K | Combinations of 30 AWG Wires | ||
| M | Combinations of 34 AWG Wires | ||