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8.2
Recommended minimum AWG size for extension cords for battery
chargers:
AC input rating,
amperes
At least
0
2
3
4
5
6
8
10
12
14
16
18
a
If the input rating of a charger is given in watts rather than in
amperes, the corresponding ampere rating is to be determined
by dividing the wattage rating by the voltage rating
example:
8.3
a
But less
25
than
(7.6)
2
18
3
18
4
18
5
18
6
18
8
18
10
18
12
16
14
16
16
16
18
14
20
14
1250 watts/125 volts = 10 amperes
Grounding Methods
AWG size of cord
Length of cord, feet (m)
50
(15.2)
18
18
18
18
16
16
14
14
12
12
12
12
7
•
•
100
150
(30.5)
(45.6)
18
16
16
14
16
14
14
12
14
12
12
10
12
10
10
8
10
8
10
8
8
8
8
6
for
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