GE JE740GY Owner's Manual page 10

IMPORTANT SAFETY INFORMATION.
READ ALL INSTRUCTIONS BEFORE USING.
10
WARNING!
EXTENSION CORDS
A short power supply cord is provided to reduce the risks resulting
from becoming entangled in or tripping over a longer cord.
Extension cords may be used if you are careful in using them.
If an extension cord is used—
The marked electrical rating of the extension cord should be
at least as great as the electrical rating of the appliance;
The extension cord must be a grounding-type 3-wire cord and
it must be plugged into a 3-slot outlet;
The extension cord should be arranged so that it will not
drape over the counter top or tabletop where it can be pulled
on by children or tripped over unintentionally.
If you use an extension cord, the interior light may flicker and the
blower sound may vary when the microwave oven is on. Cooking
times may be longer, too.