Tweco 6045 Excel Arc - Manual (Page 23)

INSTALLATION EXCEL ARC 6045
August 26, 2011 3-3 Manual 0-5213
3.04 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 fl exible 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.
Not less than
24.4 cm (8 Ft.)
9.1-13.6 kg (20-30 lbs.) 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. 305 mm (1 Ft.)
457 mm
(18 inches)
Approx.
Ground Rod
Removable Cover
Floor
Not less than 24.4 cm (8 Ft.)
152 mm (6 Inches) Approx.
Ground
Rod
Soil
Treating
Material
Art # A-05234_AB
Figure 3-2: Grounding Diagram
The equipment grounding conductor size is listed in "Table 3-3: Recommended Wire and Fuse Size" 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 all covers to assure adequate internal ventilation and prevent component failure.
LINE VOLTS
RATED LOAD
AMPS
APPROX. LINE
FUSE SIZE
COPPER LINE WIRE SIZE* COPPER
GROUNDING
CONDUCTOR
MIN. SIZE
IN CONDUIT FLEXIBLE CABLE
460 38 60 No. 8 No. 8 No. 8
*Conductor size shall be modifi ed as required for line voltage drop and ambient temperature. Sizes listed for conduit installation are based on 90° C conductor
insulation, designated as FEP, FEPB, RHH, and THHN.
Table 3-3: Recommended Wire and Fuse Size
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 30 meters (10 feet) from the machine.