8.battery charging - ac connections
8.1For grounded, cord-connected battery chargers with an input rating less than 15 amperes and intended for use on a nominal 120-volt circuit:
•This battery charger is for use on a nominal 120-volt circuit, and has a grounding plug that looks like the plug illustrated in sketch A in Figure 8.3. A temporary adapter, which looks like the adapter illustrated in sketches B and C, may be used to connect this plug to a two-pole recep- tacle as shown in sketch B if a properly grounded outlet is not available. The temporary adapter should be used only until a properly grounded outlet can be installed by a qualified electrician.
DANGER – Before using adapter as illustrated, be certain that center screw of outlet plate is grounded. The green-colored rigid ear or lug ex tending from adapter must be connected to a properly grounded outlet– make certain it is grounded. If necessary, replace original outlet cover plate screw with a longer screw that will secure adapter ear or lug to out- let cover plate and make ground connection to grounded outlet.Recom- mended minimum awg size for extension cords for battery chargers:
8.2
AWG Size of Cord | 25 | 50 | 100 | 150 |
Length of Cord, Feet | 18 | 18 | 18 | 16 |
8.3
Grounding Methods