Product manual
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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 Outlets for 2-Prong Plug.)
2. Double insulated tools may be used in
either of the 120 volt outlets shown in the
preceding illustration. (See Outlets for
2-Prong Plug.)
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 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.)
3. When using more than one extension cord
to make up the total length, make sure each
cord contains at least the minimum wire
size required. (See Table A.)
4. If you are using one extension cord for
more than one tool, add the nameplate
amperes and use the sum to determine the
required minimum cord size. (See Table
A.)
5. If you are using an extension cord outdoors,
make sure it is marked with the suffix “W-A”
(“W” in Canada) to indicate it is acceptable
for outdoor use.
6. Make sure the extension cord is properly
wired and in good electrical condition.
Always replace a damaged extension cord
or have it repaired by a qualified electrician
before using it.
7. Protect the extension cords from sharp
objects, excessive heat, and damp or wet
areas.
RECOMMENDED MINIMUM WIRE
GAUGE FOR EXTENSION CORDS*
(120/240 VOLT)
NAMEPLATE
AMPERES
(at full load)
EXTENSION CORD
LENGTH
25’
50’
75’
100’
150’
0 – 2.0 18 18 18 18 16
2.1 – 3.4 18 18 18 16 14
3.5 – 5.0 18 18 16 14 12
5.1 – 7.0 18 16 14 12 12
7.1 – 12.0 18 14 12 10 -
12.1 – 16.0 14 12 10 - -
16.1 – 20.0 12 10 - - -
TABLE A
* Based on limiting the line
voltage drop to ve volts at
150% of the rated amperes.
Symbology
Double Insulated
Canadian Standards Association
Underwriters Laboratories, Inc.
VAC
Volts Alternating Current
A
Amperes
n
0
xxxx/min.
No Load Revolutions per Minute
(RPM)