A
C.R. LAURENCE Co., INC.
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 cause a serious drop in voltage, resulting in loss of
power and possible tool damage. (See Table A 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 Table A below.)
4. 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 below.)
5. 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 below.)
6. 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.
7. 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.
8. Protect the extension cords from sharp objects, excessive heat, and damp or wet areas.
table A: Recommended minimum Wire Gauge for
extension Cords* (120/240 volt)
Nameplate Amperes
(at full load)
extension Cord Length
25
'
50
'
75
'
10
0'
15
0'
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
-
-
-
* Based on limiting the line voltage drop to five volts
at 150% of the rated amperes.
Double Insulated
Canadian Standards Association
Underwriters Laboratories, Inc.
Volts Alternating Current
Amperes
WARNING
marking concerning
risk of eye injury. Wear
ANSI-approved safety goggles
with side shields.
Read the manual before set-up
and/or use
WARNING
marking concerning
risk of electric shock. Properly
connect the power cord to
appropriate outlet.
SYMBOLOGY
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