Perdidas de voltaje en sistemas de 12,24,48 y 120 vdc Utiliza estas tablas para determinar la distancia maxima de la fuente de e enrgia hacia la carga con una caida maxima de voltaje del 2%. Si puedes permitir una caida de voltaje de 4% entonces la distancia seria del doble. No debes de excederte mas del 2% de caida entre las fotoceldas y baterias. Una caida del 4% o 5% es aceptable entre las baterias y circuitos de iluminación. Ten en cuenta que arreglos fotovoltaicos con voltajes de 24 vdc se pueden colocar mas lejos que los arreglos a 12 vdc del mismo tamaño debido al menor amperaje.
| Maxima longitud de cable en sistemas a 12 vdc | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| AMPS | #14 | #12 | #10 | #8 | #6 | #4 | #2 | 1/0 | 2/0 | 4/0 |
| Caida de voltaje de 2% | ||||||||||
| 1A | 45 ft | 70 ft | 115 ft | 180 ft | 290 ft | 456 ft | 720 ft | - | - | - |
| 2A | 22.5 ft | 35 ft | 57.5 ft | 90 ft | 145 ft | 228 ft | 360 ft | 580 ft | 720 ft | 1060 ft |
| 4A | 10 ft | 17.5 ft | 27.5 ft | 45 ft | 72.5 ft | 114 ft | 180 ft | 290 ft | 360 ft | 580 ft |
| 6A | 7.5 ft | 12 ft | 17.5 ft | 30 ft | 47.5 ft | 75 ft | 120 ft | 193 ft | 243 ft | 380 ft |
| 8A | 5.5 ft | 8.5 ft | 15 ft | 22.5 ft | 35.5 ft | 57 ft | 90 ft | 145 ft | 180 ft | 290 ft |
| 10A | 4.5 ft | 7 ft | 12 ft | 18 ft | 28.5 ft | 45.5 ft | 72.5 ft | 115 ft | 145 ft | 230 ft |
| 15A | 3 ft | 4.5 ft | 7 ft | 12 ft | 19 ft | 30 ft | 48 ft | 76.5 ft | 96 ft | 150 ft |
| 20A | 2 ft | 3.5 ft | 5.5 ft | 9 ft | 14.5 ft | 22.5 ft | 36 ft | 57.5 ft | 72.5 ft | 116 ft |
| 25A | 1.8 ft | 2.8 ft | 4.5 ft | 7 ft | 11.5 ft | 18 ft | 29 ft | 46 ft | 58 ft | 92 ft |
| 30A | 1.5 ft | 2.4 ft | 3.5 ft | 6 ft | 9.5 ft | 15 ft | 24 ft | 38.5 ft | 48.5 ft | 77 ft |
| 40A | - | - | 2.8 ft | 4.5 ft | 7 ft | 11.5 ft | 18 ft | 29 ft | 36 ft | 56 ft |
| 50A | - | - | 2.3 ft | 3.6 ft | 5.5 ft | 9 ft | 14.5 ft | 23 ft | 29 ft | 46 ft |
| 100A | - | - | - | - | 2.9 ft | 4.6 ft | 7.2 ft | 11.5 ft | 14.5 ft | 23 ft |
| 150A | - | - | - | - | - | - | 4.8 ft | 7.7 ft | 9.7 ft | 15 ft |
| 200A | - | - | - | - | - | - | 3.6 ft | 5.8 ft | 7.3 ft | 11 ft |
| Maxima longitud de cable en sistemas a 24 vdc | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| AMPS | #14 | #12 | #10 | #8 | #6 | #4 | #2 | 1/0 | 2/0 | 4/0 |
| Caida de voltaje de 2% | ||||||||||
| 1A | 90 ft | 140 ft | 230 ft | 360 ft | 580 ft | 912 ft | 1440 ft | - | - | - |
| 2A | 45 ft | 70 ft | 115 ft | 180 ft | 290 ft | 456 ft | 720 ft | 1160 ft | 1440 ft | 2120 ft |
| 4A | 20 ft | 35 ft | 55 ft | 90 ft | 145 ft | 228 ft | 360 ft | 580 ft | 720 ft | 1160 ft |
| 6A | 15 ft | 24 ft | 35 ft | 60 ft | 95 ft | 150 ft | 240 ft | 386 ft | 486 ft | 760 ft |
| 8A | 11 ft | 17 ft | 30 ft | 45 ft | 71 ft | 114 ft | 180 ft | 290 ft | 360 ft | 580 ft |
| 10A | 9 ft | 14 ft | 24 ft | 36 ft | 57 ft | 91 ft | 145 ft | 230 ft | 290 ft | 460 ft |
| 15A | 6 ft | 9 ft | 14 ft | 24 ft | 38 ft | 60 ft | 96 ft | 153 ft | 192 ft | 300 ft |
| 20A | 4 ft | 7 ft | 11 ft | 18 ft | 29 ft | 45 ft | 72 ft | 115 ft | 145 ft | 232 ft |
| 25A | 3.6 ft | 5.6 ft | 9 ft | 14 ft | 23 ft | 36 ft | 58 ft | 92 ft | 116 ft | 184 ft |
| 30A | 3 ft | 4.8 ft | 7 ft | 12 ft | 19 ft | 30 ft | 48 ft | 77 ft | 97 ft | 154 ft |
| 40A | - | - | 5.6 ft | 9 ft | 14 ft | 23 ft | 36 ft | 58 ft | 72 ft | 112 ft |
| 50A | - | - | 4.6 ft | 7.2 ft | 11 ft | 18 ft | 29 ft | 46 ft | 58 ft | 92 ft |
| 100A | - | - | - | - | 5.8 ft | 9.2 ft | 14.4 ft | 23 ft | 29 ft | 46 ft |
| 150A | - | - | - | - | - | - | 9.6 ft | 15.4 ft | 19.4 ft | 30 ft |
| 200A | - | - | - | - | - | - | 7.2 ft | 11.6 ft | 14.6 ft | 22 ft |
| Maxima longitud de cable en sistemas a 48 vdc | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| AMPS | #14 | #12 | #10 | #8 | #6 | #4 | #2 | 1/0 | 2/0 | 4/0 |
| Caida de voltaje de 2% | ||||||||||
| 1A | 180 ft | 280 ft | 460 ft | 720 ft | 1160 ft | 1824 ft | 2880 ft | - | - | - |
| 2A | 90 ft | 140 ft | 230 ft | 360 ft | 580 ft | 912 ft | 1440 ft | 2320 ft | 2880 ft | 4240 ft |
| 4A | 40 ft | 70 ft | 110 ft | 180 ft | 290 ft | 456 ft | 720 ft | 1160 ft | 1440 ft | 2320 ft |
| 6A | 30 ft | 48 ft | 70 ft | 120 ft | 190 ft | 300 ft | 480 ft | 772 ft | 972 ft | 1520 ft |
| 8A | 22 ft | 34 ft | 60 ft | 90 ft | 142 ft | 228 ft | 360 ft | 580 ft | 720 ft | 1160 ft |
| 10A | 18 ft | 28 ft | 48 ft | 72 ft | 114 ft | 182 ft | 290 ft | 460 ft | 580 ft | 920 ft |
| 15A | 12 ft | 18 ft | 28 ft | 48 ft | 72 ft | 120 ft | 192 ft | 306 ft | 384 ft | 600 ft |
| 20A | 8 ft | 14 ft | 22 ft | 36 ft | 58 ft | 90 ft | 144 ft | 230 ft | 290 ft | 464 ft |
| 25A | 7.2 ft | 11.2 ft | 18 ft | 28 ft | 46 ft | 72 ft | 116 ft | 184 ft | 232 ft | 368 ft |
| 30A | 6 ft | 9.6 ft | 14 ft | 24 ft | 38 ft | 60 ft | 96 ft | 154 ft | 194 ft | 308 ft |
| 40A | - | - | 11.2 ft | 18 ft | 28 ft | 46 ft | 72 ft | 116 ft | 144 ft | 224 ft |
| 50A | - | - | 9.2 ft | 14.4 ft | 22 ft | 36 ft | 58 ft | 92 ft | 116 ft | 184 ft |
| 100A | - | - | - | - | 11.6 ft | 18.4 ft | 28.8 ft | 46 ft | 58 ft | 92 ft |
| 150A | - | - | - | - | - | - | 19.2 ft | 30.8 ft | 38.8 ft | 60 ft |
| 200A | - | - | - | - | - | - | 14.4 ft | 23.2 ft | 29.2 ft | 44 ft |
| Maxima longitud de cable en sistemas a 120 vdc | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| AMPS | #14 | #12 | #10 | #8 | #6 | #4 | #2 | 1/0 | 2/0 | 4/0 |
| Caida de voltaje de 2% | ||||||||||
| 1A | 450 ft | 700 ft | 1150 ft | 1800 ft | 2900 ft | 4560 ft | 7200 ft | - | - | - |
| 2A | 225 ft | 350 ft | 575 ft | 900 ft | 1450 ft | 2280 ft | 3600 ft | 5800 ft | 7200 ft | 10600 ft |
| 4A | 100 ft | 175 ft | 275 ft | 450 ft | 725 ft | 1140 ft | 1800 ft | 2900 ft | 3600 ft | 5800 ft |
| 6A | 75 ft | 120 ft | 175 ft | 300 ft | 475 ft | 750 ft | 1200 ft | 1930 ft | 2430 ft | 3800 ft |
| 8A | 55 ft | 85 ft | 150 ft | 225 ft | 355 ft | 570 ft | 900 ft | 1450 ft | 1800 ft | 2900 ft |
| 10A | 45 ft | 70 ft | 120 ft | 180 ft | 285 ft | 455 ft | 725 ft | 1150 ft | 1450 ft | 2300 ft |
| 15A | 30 ft | 45 ft | 70 ft | 120 ft | 190 ft | 300 ft | 480 ft | 765 ft | 960 ft | 1500 ft |
| 20A | 20 ft | 35 ft | 55 ft | 90 ft | 145 ft | 225 ft | 360 ft | 575 ft | 725 ft | 1160 ft |
| 25A | 18 ft | 28 ft | 45 ft | 70 ft | 115 ft | 180 ft | 290 ft | 460 ft | 580 ft | 920 ft |
| 30A | 15 ft | 24 ft | 35 ft | 60 ft | 95 ft | 150 ft | 240 ft | 385 ft | 485 ft | 770 ft |
| 40A | - | - | 28 ft | 48 ft | 70 ft | 115 ft | 180 ft | 290 ft | 360 ft | 560 ft |
| 50A | - | - | 23 ft | 36 ft | 55 ft | 90 ft | 145 ft | 230 ft | 290 ft | 460 ft |
| 100A | - | - | - | 18 ft | 29 ft | 46 ft | 72 ft | 115 ft | 145 ft | 230 ft |
| 150A | - | - | - | - | - | - | 48 ft | 77 ft | 97 ft | 150 ft |
| 200A | - | - | - | - | - | - | 36 ft | 58 ft | 73 ft | 110 ft |
