National Flooring Equipment 550, Инструкция по эксплуатации, Страница: 7 / 28

Safety
www.nationalequipment.com Phone: 763-315-5300 7
FIG. A
Safety
www.nationalequipment.com Phone: 763-315-5300 7
GROUNDING
Jobsite receptacles can vary. Check the voltage at different receptacles on the jobsite for
a more accurate voltage reading. 15 amp GFI outlets are not recommended.
GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS
Equipment marked “Grounding Required” have a three wire cord and three prong
grounding plug. The plug must be connected to a properly grounded outlet (Figure A). If
the equipment should electrically malfunction or break down, grounding provides a low
resistance path to carry electricity away from the user; reducing the risk of electric shock.
The grounding prong in the plug is connected through the green wire inside the cord
to the grounding system in the equipment. The green wire in the cord must be the only
wire connected to the equipment’s grounding system and must never be attached to an
electrically “live” terminal.
The equipment must be plugged into an appropriate outlet, one which is properly
installed and grounded in accordance with all codes and ordinances. The plug and outlet
should look like the example in Figure A.
EXTENSION CORDS
Grounded equipment requires a three wire extension cord. Double insulated equipment
can use either a two or three wire extension cord. As the distance from the supply outlet
increases, you must use a larger diameter extension cord. Using extension cords with
inadequately sized wire causes a substantial drop in voltage, resulting in loss of power
and possible equipment damage.
The smaller the gauge number of the wire, the greater the capacity and larger diam-
eter of the cord. For example, a 10 gauge cord can carry a higher current than a 12
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 nameplate ampere and use the sum to
determine the required minimum wire size.
GUIDELINES FOR USING EXTENSION CORDS
• If you are using an extension cord outdoors, make sure it is marked with the suffi x
“W-A” (“W” in Canada) to indicate that it is acceptable for outdoor use.
• Be sure your extension cord is properly wired and in good electrical condition.
Always replace a damaged extension cord or have it repaired by a qualifi ed person
before using it.
• Protect your extension cords from sharp objects, excessive heat and damp or wet
areas.
WARNING:
ELECTRICAL CORDS CAN BE HAZARDOUS. MISUSE CAN
RESULT IN FIRE OR DEATH BY ELECTRICAL SHOCK. READ CAREFULLY AND
FOLLOW ALL DIRECTIONS.
CAUTION: IMPROPERLY CONNECTING THE GROUNDING WIRE CAN RESULT
IN THE RISK OF ELECTRIC SHOCK. CHECK WITH A QUALIFIED ELECTRI-
CIAN IF YOU ARE IN DOUBT AS TO WHETHER THE OUTLET IS PROPERLY
GROUNDED. DO NOT MODIFY THE PLUG PROVIDED WITH THE EQUIPMENT.
NEVER REMOVE THE GROUNDING PRONG FROM THE PLUG. DO NOT USE
THE EQUIPMENT IF THE CORD OR PLUG IS DAMAGED. IF THE PLUG WILL
NOT FIT THE OUTLET, HAVE A PROPER OUTLET INSTALLED BY A QUALIFIED
ELECTRICIAN.