SKU 92194
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Page 5
GROUNDED TOOLS: TOOLS
WITH THREE PRONG PLUGS
1.
Tools marked with “Grounding Required” have a
three wire cord and three prong grounding plug. The
plug must be connected to a properly grounded
outlet. If the tool should electrically malfunction or
break down, grounding provides a low resistance
path to carry electricity away from the user, reduc-
ing the risk of electric shock. (See Figure A.)
2.
The grounding prong in the plug is connected
through the green wire inside the cord to the
grounding system in the tool. The green wire in the
cord must be the only wire connected to the tool’s
grounding system and must never be attached to
an electrically “live” terminal. (See Figure A.)
3.
Your tool must be plugged into an appropriate outlet, properly installed and grounded in accordance
with all codes and ordinances. The plug and outlet should look like those in the following illustration.
(See Figure A.)
DOUBLE INSULATED TOOLS: TOOLS WITH TWO PRONG PLUGS
4.
Tools marked “Double Insulated” do not require ground-
ing. They have a special double insulation system which
satisfies OSHA requirements and complies with the
applicable standards of Underwriters Laboratories, Inc.,
the Canadian Standard Association, and the National
Electrical Code. (See Figure B.)
5.
Double insulated tools may be used in either of the 120
volt outlets shown in the following illustration. (See
Figure B.)
NOTE: This tool has a two prong polarized plug.
Figure A
Figure B
EXTENSION CORDS
1.
Grounded tools require a three wire extension cord. Double Insulated tools can use either a two or
three wire extension cord.
2.
As the distance from the supply outlet increases, you must use a heavier gauge extension cord.
Using extension cords with inadequately sized wire causes a serious drop in voltage, resulting in loss
of power and possible tool damage. (See Figure C, below.)
3.
The smaller the gauge number of the wire, the greater the capacity of the cord. For example, a 14
gauge cord can carry a higher current than a 16 gauge cord. (See Figure C.)
4.
When using more than one extension cord to make up the total length, make sure each cord con-
tains at least the minimum wire size required. (See Figure C.)
REV 06/05
