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Double Insulated Radios:
Radios with Two Prong Plugs
Radios marked Double Insulated
do not require grounding. They
have a special double insulation
system which satisfies OSHA re-
quirements and complies with the
applicable standards of Under-
writers Laboratories, Inc., the Ca-
nadian Standard Association and
the National Electrical Code.
Double Insulated radios may be
used in either of the 120 volt out-
lets shown in Figures A and B.
Fig. A
Fig. B
Guidelines for Using Extension Cords
If you are using an extension cord outdoors, be sure it is marked
with the suffix W-A (W in Canada) to indicate that it is accept-
able for outdoor use.
Be sure your extension cord is properly wired and in good elec-
trical condition. Always replace a damaged extension cord or
have it repaired by a qualified person before using it.
Protect your extension cords from sharp objects, excessive heat
and damp or wet areas.
Unplug all cords during lightning storms or when unused for long
periods of time.
Amps
Double Insulated
Symbology
Volts Alternating Current
Underwriters Laboratories, Inc.
(UL Listed to U.S. and Canadian
safety standards)
Caution. Risk of electric shock.
Presence of important operating
instructions.
Hertz
Federal Communications
Commission
Double insulated tools can use either a two or three wire extension cord.
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. Refer to the table shown to determine the required minimum
wire size.
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. When using more than one extension cord to make up the total
length, be sure each cord contains at least the minimum wire size required.
If you are using one extension cord for more than one tool, add the name-
plate amperes and use the sum to determine the required minimum wire
size.
Nameplate
Amperes
0 - 5
5.1 - 8
8.1 - 12
12.1 - 15
15.1 - 20
Extension Cord Length
25'
16
16
14
12
10
75'
16
14
12
10
10
100'
14
12
10
10
--
150'
12
10
--
--
--
200'
12
--
--
--
--
Recommended Minimum Wire Gauge
for Extension Cords*
* Based on limiting the line voltage drop to five
volts at 150% of the rated amperes.
50'
16
16
14
12
10
READ AND SAVE ALL INSTRUCTIONS
FOR FUTURE USE.