Tree wire is used for primary and secondary overhead distribution line that have a potential for contact with trees or other debris.
ANSI/ICEA S-121-733 Tree Wire and Messenger Supported Spacer Cable.
| Voltage | Size | Number of Wires | Conductor Shield Thickness | Inner Layer Thickness | Outer Layer Thickness | Approx.Overall Diameter | Rated Strength | Approx.Weight |
| AWG or kcmil | No. | mm | mm | mm | mm | kN | kg/km | |
| 15kV | 48.69 | 7 | 0.38 | 1.91 | 1.91 | 15.2 | 7.83 | 223 |
| 15kV | 77.47 | 7 | 0.38 | 1.91 | 1.91 | 16.8 | 12.4 | 286 |
| 15kV | 123.3 | 7 | 0.38 | 1.91 | 1.91 | 19 | 18.9 | 383 |
| 15kV | 155.4 | 7 | 0.38 | 1.91 | 1.91 | 20.1 | 23.8 | 443 |
| 15kV | 195.7 | 7 | 0.38 | 1.91 | 1.91 | 21.5 | 30 | 521 |
| 15kV | 246.9 | 7 | 0.38 | 1.91 | 1.91 | 23 | 37.8 | 614 |
| 15kV | 312.8 | 19 | 0.38 | 1.91 | 1.91 | 24.9 | 46.5 | 740 |
| 15kV | 394.5 | 19 | 0.38 | 1.91 | 1.91 | 27.4 | 58.6 | 892 |
| 15kV | 465.4 | 19 | 0.38 | 1.91 | 1.91 | 28.4 | 69.2 | 1008 |
| 15kV | 559.5 | 19 | 0.51 | 1.91 | 1.91 | 30.4 | 83.1 | 1168 |
| 15kV | 652.4 | 19 | 0.51 | 1.91 | 1.91 | 31.8 | 97 | 1320 |
| 15kV | 740.8 | 37 | 0.51 | 1.91 | 1.91 | 33.3 | 107 | 1463 |
| 25kV | 48.69 | 7 | 0.38 | 3.18 | 3.18 | 20.1 | 7.83 | 358 |
| 25kV | 77.47 | 7 | 0.38 | 3.18 | 3.18 | 21.7 | 12.4 | 434 |
| 25kV | 123.3 | 7 | 0.38 | 3.18 | 3.18 | 23.9 | 18.9 | 547 |
| 25kV | 155.4 | 7 | 0.38 | 3.18 | 3.18 | 25.0 | 23.8 | 616 |
| 25kV | 195.7 | 7 | 0.38 | 3.18 | 3.18 | 26.4 | 30.0 | 704 |
| 25kV | 246.9 | 7 | 0.38 | 3.18 | 3.18 | 27.9 | 37.8 | 809 |
| 25kV | 312.8 | 19 | 0.38 | 3.18 | 3.18 | 29.6 | 46.5 | 939 |
| 25kV | 394.5 | 19 | 0.38 | 3.18 | 3.18 | 32.1 | 58.6 | 1109 |
| 25kV | 465.4 | 19 | 0.38 | 3.18 | 3.18 | 33.1 | 69.2 | 1232 |
| 25kV | 559.5 | 19 | 0.51 | 3.18 | 3.18 | 35.1 | 83.1 | 1407 |
| 25kV | 652.4 | 19 | 0.51 | 3.18 | 3.18 | 36.5 | 97.0 | 1569 |
| 25kV | 740.8 | 37 | 0.51 | 3.18 | 3.18 | 38.0 | 107.0 | 1723 |
| 25kV | 927.2 | 37 | 0.51 | 3.18 | 3.18 | 40.9 | 135.0 | 2050 |
| 35kV | 48.69 | 7 | 0.38 | 4.45 | 3.18 | 22.6 | 7.83 | 441 |
| 35kV | 77.47 | 7 | 0.38 | 4.45 | 3.18 | 24.2 | 12.4 | 523 |
| 35kV | 123.3 | 7 | 0.38 | 4.45 | 3.18 | 26.4 | 18.9 | 644 |
| 35kV | 155.4 | 7 | 0.38 | 4.45 | 3.18 | 27.5 | 23.8 | 718 |
| 35kV | 195.7 | 7 | 0.38 | 4.45 | 3.18 | 28.9 | 30.0 | 811 |
| 35kV | 246.9 | 7 | 0.38 | 4.45 | 3.18 | 30.4 | 37.8 | 922 |
| 35kV | 312.8 | 19 | 0.38 | 4.45 | 3.18 | 32.1 | 46.5 | 1059 |
| 35kV | 394.5 | 19 | 0.38 | 4.45 | 3.18 | 34.6 | 58.6 | 1238 |
| 35kV | 465.4 | 19 | 0.38 | 4.45 | 3.18 | 35.6 | 69.2 | 1365 |
| 35kV | 559.5 | 19 | 0.51 | 4.45 | 3.18 | 37.6 | 83.1 | 1547 |
| 35kV | 652.4 | 19 | 0.51 | 4.45 | 3.18 | 39.0 | 97.0 | 1715 |
| 35kV | 740.8 | 37 | 0.51 | 4.45 | 3.18 | 40.5 | 107 | 1874 |
| 35kV | 927.2 | 37 | 0.51 | 4.45 | 3.18 | 43.4 | 135 | 2213 |