Thermal Arc 6045 EXCEL-ARC, Руководство по эксплуатации

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EXCEL-ARC 500, 6045
August 22, 2005 3-1
SECTION 3:
INSTALLATION
3.01 Location
For best operating characteristics and longest unit life,
take care in selecting an installation site. Avoid locations
exposed to high humidity, dust, high ambient temperature,
or corrosive fumes. Moisture can condense on electrical
components, causing corrosion or shorting of circuits.
Dirt on components helps retain this moisture.
Adequate air circulation is needed at all times in order to
assure proper operation. Provide a minimum of 12 inches
(305 mm) of free air space at both front and rear of the
unit. Make sure that the ventilator openings are not
obstructed.
3.02 Grounding
The frame of this welding machine should be grounded
for personnel safety, and to assure operation of the
overcurrent protection. The grounding method, and the
equipment grounding conductor size and type shall
conform to local and national codes.
For the National Electrical Code, the equipment grounding
conductor shall be green, green with a yellow stripe, or
bare.
If flexible power cable is used, use a cable assembly which
includes the equipment grounding conductor. If metallic
armored cable or conduit is used, the metal sheathing or
conduit must be effectively grounded per local and
national codes.
Rubber-tire mounted equipment shall be grounded to
conform to local and national codes. The grounding
assists in providing protection against line voltage
electrical shock and static shock. The grounding serves
to discharge the static electric charge which tends to build
up on rubber-tire mounted equipment. This static charge
can cause painful shock and lead to the erroneous
conclusion that an electrical fault exists in the equipment.
If a system ground is not available, consult the electrical
code enforcement body for instructions. The welding
machine should be connected to an adequate driven
ground rod, or to a water pipe that enters the ground not
more than 10 feet (30 meters) from the machine.
The equipment grounding conductor size is listed in Table
3-1 as a guide, if no local or national code is applicable.
Attach the equipment grounding conductor to the stud
provided on the yoke. Determine that the ground wire
size is adequate before the machine is operated.
CAUTION
Be sure to replace the cabinet top to assure
adequate internal ventilation and prevent
component failure.
Grounding
Conductor
Removable
Cover
Floor
Ground
Rod
Soil
Treating
Material
6 inches (152 mm) Approx.
Not less than 8 Ft.
(2438 mm)
Fasten Grounding Conductor
to the rod with an approved
ground clamp.
20-30 lbs. (9.1-13.6 kg) Soil Treating Material
(copper sulphate, magnesium sulphate or rock salt)
placed in circular trench and covered
with earth.
Grounding Conductor
Fasten Grounding
Conductor to the rod
with an approved
ground clamp.
Approx. 1 Ft. (305 mm)
Not less than 8 Ft. (2438 mm)
18 inches
(457 mm)
Approx.
Ground Rod
OUTSIDE GROUND INSIDE GROUND
Art # A-06062
Figure 3-1: Grounding