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Voltage drop with different wire gauge at different lengths
7/16/2007 |
Jim
Olliff |
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Cable
Length in Feet |
Wire gauge |
Resistance Ohms/1,000
ft |
10 |
25 |
50 |
100 |
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6 |
0.3951 |
0.0040 |
0.0099 |
0.0198 |
0.0395 |
8 |
0.6282 |
0.0063 |
0.0157 |
0.0314 |
0.0628 |
10 |
0.9989 |
0.0100 |
0.0250 |
0.0499 |
0.0999 |
12 |
1.5880 |
0.0159 |
0.0397 |
0.0794 |
0.1588 |
14 |
2.5250 |
0.0253 |
0.0631 |
0.1263 |
0.2525 |
16 |
4.0160 |
0.0402 |
0.1004 |
0.2008 |
0.4016 |
18 |
6.3850 |
0.0639 |
0.1596 |
0.3193 |
0.6385 |
20 |
10.1500 |
0.1015 |
0.2538 |
0.5075 |
1.0150 |
22 |
16.1400 |
0.1614 |
0.4035 |
0.8070 |
1.6140 |
24 |
25.6700 |
0.2567 |
0.6418 |
1.2835 |
2.5670 |
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Voltage
Drop at Specified Current at 13.6 VDC |
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Cable
Length in Feet |
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10.0000 |
25.0000 |
50.0000 |
100.0000 |
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6 ga |
Amps |
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1 |
0.0040 |
0.0099 |
0.0198 |
0.0395 |
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10 |
0.0395 |
0.0988 |
0.1976 |
0.3951 |
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20 |
0.0790 |
0.1976 |
0.3951 |
0.7902 |
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30 |
0.1185 |
0.2963 |
0.5927 |
1.1853 |
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45 |
0.1778 |
0.4445 |
0.8890 |
1.7780 |
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50 |
0.1976 |
0.4939 |
0.9878 |
1.9755 |
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60 |
0.2371 |
0.5927 |
1.1853 |
2.3706 |
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75 |
0.2963 |
0.7408 |
1.4816 |
2.9633 |
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8 ga |
Amps |
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1 |
0.0063 |
0.0157 |
0.0314 |
0.0628 |
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10 |
0.0628 |
0.1571 |
0.3141 |
0.6282 |
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20 |
0.1256 |
0.3141 |
0.6282 |
1.2564 |
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30 |
0.1885 |
0.4712 |
0.9423 |
1.8846 |
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45 |
0.2827 |
0.7067 |
1.4135 |
2.8269 |
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50 |
0.3141 |
0.7853 |
1.5705 |
3.1410 |
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10 ga |
Amps |
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1 |
0.0100 |
0.0250 |
0.0499 |
0.0999 |
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10 |
0.0999 |
0.2497 |
0.4995 |
0.9989 |
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20 |
0.1998 |
0.4995 |
0.9989 |
1.9978 |
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30 |
0.2997 |
0.7492 |
1.4984 |
2.9967 |
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45 |
0.4495 |
1.1238 |
2.2475 |
4.4951 |
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50 |
0.4995 |
1.2486 |
2.4973 |
4.9945 |
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12 ga |
Amps |
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1 |
0.0159 |
0.0397 |
0.0794 |
0.1588 |
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10 |
0.1588 |
0.3970 |
0.7940 |
1.5880 |
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20 |
0.3176 |
0.7940 |
1.5880 |
3.1760 |
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30 |
0.4764 |
1.1910 |
2.3820 |
4.7640 |
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45 |
0.7146 |
1.7865 |
3.5730 |
7.1460 |
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50 |
0.7940 |
1.9850 |
3.9700 |
7.9400 |
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14 ga |
Amps |
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1 |
0.0253 |
0.0631 |
0.1263 |
0.2525 |
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10 |
0.2525 |
0.6313 |
1.2625 |
2.5250 |
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20 |
0.5050 |
1.2625 |
2.5250 |
5.0500 |
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30 |
0.7575 |
1.8938 |
3.7875 |
7.5750 |
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45 |
1.1363 |
2.8406 |
5.6813 |
11.3625 |
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50 |
1.2625 |
3.1563 |
6.3125 |
12.6250 |
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16 ga |
Amps |
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1 |
0.0402 |
0.1004 |
0.2008 |
0.4016 |
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10 |
0.4016 |
1.0040 |
2.0080 |
4.0160 |
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20 |
0.8032 |
2.0080 |
4.0160 |
8.0320 |
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30 |
1.2048 |
3.0120 |
6.0240 |
12.0480 |
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45 |
1.8072 |
4.5180 |
9.0360 |
18.0720 |
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50 |
2.0080 |
5.0200 |
10.0400 |
20.0800 |
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18 ga |
Amps |
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1 |
0.06385 |
0.159625 |
0.31925 |
0.6385 |
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10 |
0.6385 |
1.59625 |
3.1925 |
6.385 |
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20 |
1.277 |
3.1925 |
6.385 |
12.77 |
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30 |
1.9155 |
4.78875 |
9.5775 |
19.155 |
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45 |
2.87325 |
7.183125 |
14.36625 |
28.7325 |
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50 |
3.1925 |
7.98125 |
15.9625 |
31.925 |
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Why buy our
Connectors?
- Unique, simple, reliable, and convenient to use
- 45 amps at 58 VDC capabilities
- Low loss connectors
- Fits in your “Go Bag”
- Use Anderson Powerpole® connectors
- Get the most from your external batteries
- Various connector options
- 75 amp input with four 45 amp outputs
- No power dissipative components
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