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Page 7SKU 97427 For technical questions, please call 1-800-444-3353.
Double Insulated Tools: Tools
with Two Prong Plugs
Outlets for 2-Prong Plug
1. Tools marked “Double Insulated”
do not require grounding. They
have a special double insulation
system which satises OSHA
requirements and complies with the
applicable standards of Underwriters
Laboratories, Inc., the Canadian
Standard Association, and the
National Electrical Code. (See
Outlets for 2-Prong Plug.)
Double insulated tools may be used 2.
in either of the 120 volt outlets shown
in the preceding illustration. (See
Outlets for 2-Prong Plug.)
Extension Cords
Grounded1. tools require a three wire
extension cord. Double Insulated
tools can use either a two or three
wire extension cord.
As the distance from the supply 2.
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 Table A.) 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 Table A.)
When using more than one extension 3.
cord to make up the total length,
make sure each cord contains at
least the minimum wire size required.
(See Table A.)
If you are using one extension cord 4.
for more than one tool, add the
nameplate amperes and use the sum
to determine the required minimum
cord size. (See Table A.)
If you are using an extension cord 5.
outdoors, make sure it is marked with
the sufx “W-A” (“W” in Canada) to
indicate it is acceptable for outdoor
use.
Make sure the extension cord is 6.
properly wired and in good electrical
condition. Always replace a damaged
extension cord or have it repaired by
a qualied electrician before using it.
Protect the extension cords from 7.
sharp objects, excessive heat, and
damp or wet areas.