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So you want to add some electrical accessories to your new truck... (a guide to 1997 Ford F-150 Electrical Systems) Contributed by Nic Colasurdo |
The following charts are extremely useful in sizing wires for certain amp demands and distances:
- Chart A is from PowerUp Products, A Division of Sonoma Circuits, Inc. []
- Chart B is from the December 1997 issue of 4-Wheel & Off-Road magazine; Source: Painless Wiring.
- The shaded values are those where the two charts differ. My recommendation would be to use the larger gauge wire (smaller number).
Chart A
Amps |
Length of Wire (in feet) |
|
3' |
5' |
7' |
10' |
15' |
20' |
25' |
30' |
1 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
2 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
3 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
4 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
18 |
5 |
20 |
20 |
20 |
20 |
20 |
20 |
18 |
18 |
6 |
20 |
20 |
20 |
20 |
20 |
18 |
18 |
16 |
7 |
20 |
20 |
20 |
20 |
20 |
18 |
16 |
16 |
8 |
20 |
20 |
20 |
20 |
18 |
16 |
16 |
14 |
10 |
20 |
20 |
20 |
20 |
18 |
16 |
14 |
14 |
12 |
20 |
20 |
20 |
18 |
16 |
14 |
14 |
14 |
15 |
20 |
20 |
20 |
16 |
16 |
14 |
12 |
12 |
20 |
20 |
20 |
18 |
16 |
14 |
12 |
12 |
10 |
24 |
20 |
18 |
16 |
14 |
14 |
12 |
10 |
10 |
30 |
18 |
16 |
16 |
14 |
12 |
10 |
10 |
10 |
Chart B
Amps |
Length of Wire (in feet) |
|
3' |
5' |
7' |
10' |
15' |
20' |
25' |
30' |
1 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
2 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
3 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
20 |
4 |
20 |
20 |
20 |
20 |
20 |
20 |
18 |
18 |
5 |
20 |
20 |
20 |
20 |
20 |
18 |
18 |
18 |
6 |
20 |
20 |
20 |
20 |
18 |
18 |
16 |
16 |
7 |
20 |
20 |
20 |
18 |
18 |
16 |
16 |
16 |
8 |
20 |
20 |
20 |
18 |
18 |
16 |
16 |
14 |
10 |
20 |
20 |
20 |
18 |
16 |
16 |
14 |
14 |
12 |
20 |
20 |
20 |
18 |
16 |
16 |
14 |
14 |
15 |
20 |
20 |
20 |
18 |
16 |
14 |
12 |
12 |
20 |
20 |
20 |
18 |
16 |
14 |
14 |
12 |
12 |
24 |
20 |
20 |
18 |
16 |
14 |
12 |
12 |
10 |
30 |
20 |
18 |
16 |
14 |
12 |
12 |
10 |
10 |
On to The Credits...
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