Extension Cords.
could result in fire and electrical shock which may result in
injury, death or damage to device and property. If extension
cord must be used, make sure that: (1) The pins on the
extension cord plug have the same number, size, and shape
as those of the AC power cord plug on the charger; (2) The
extension cord is properly wired and is in good condition; (3)
The wire size is as specified in Table 1 below.
Recommended Minimum AWG Size For
Extension Cords For Battery Chargers
AC Input Rating,
Amperes*
Equal To
But Less
Or Greater
Than
0
2
3
4
5
6
8
10
12
14
16
18
*If the input rating of a charger is given in watts rather
than amperes, the corresponding ampere rating is to
be determined by dividing the wattage rating by the
Using an improper extension cord
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
voltage rating - for example:
1250W + 125V = 10
AWG Size of Cord
Length Of Cord, Feet (m)
50
(15.2)
18
18
18
18
16
16
14
14
12
12
12
12
Amperes
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