Mainline electrical
Feeder size from pivot amps, run length, and allowable drop.
Reid Bros. · American Irrigation · 9/19/2026
Yellow fields are inputs — everything else calculates live, same as the original workbook.
Pivot amps 5.34 and span drop 6.33 V come from Pivot electric.
Total amps
5.34
Allowable drop, V
24.50
Max table number
3,479.0
required wire
| Copper | Aluminum | |
|---|---|---|
| Size | 14 | 12 |
| Ampacity | 20 | 20 |
| Mainline drop, V | 23.20 | 23.92 |
| Pivot point, V | 466.80 | 466.08 |
| Pivot end, V | 460.47 | 459.76 |
desired wire
| Copper | Aluminum | |
|---|---|---|
| Size | 0 | 00 |
| Ampacity | 150 | 135 |
| Mainline drop, V | 1.27 | 1.54 |
| Pivot point, V | 488.73 | 488.46 |
| Pivot end, V | 482.41 | 482.14 |