Thermal Arc ULTRA FLEX 350, Руководство пользователя

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arc. When considering voltage drop, the entire loop
(electrode plus work lead) must be considered.
Refer to Table 4-2 as a basic guideline to the
required copper cable sizes. For Pulsed-GMAW
welding, the cable size should be selected based on
peak pulse current rather than average welding
amps. The peak pulse current will vary with the
different welding schedules.
As a general rule, the welding cables should be
kept as short as possible and placed close together.
When Pulse-GMAW welding with long cables
(greater than 100 feet total length), try to avoid
coiling up the cables if possible. A damaged or
frayed cable should not be used, and all connec-
tions must be properly tightened.
To attach the plugs on the welding cables, refer to
Figure 4-2. Strip the insulation off of the welding
cable for about 1/2". Insert the cable into the rubber
boot first, and then insert the stripped end into the
metallic sleeve. Insert the sleeve and cable into the
plug full and tighten the set screw. Slide the rubber
boot onto the plug.
Figure 4-2
Avg. Welding
Amps or Peak
Pulse Amps
TOTAL LENGTH OF LEAD CIRCUIT IN FEET (AND METERS)
(ELECTRODE LEAD PLUS WORK LEAD)
50 Feet
(15.2 M)
100 Feet
(30.5 M)
150 Feet
(45.7 M)
100
150
200
250
300
350 #4
#3
#2
#1
#1/0
#2/0
#4
#3
#2
#1
#1/0
#2/0
#2
#1
#1/0
#2/0
#3/0
#4/0
NOTE: Lead size shown is for 90°C (194°F) insulation, 30°C (86°F) ambient, and not over 4.5 volts
lead drop.
Table 4-2
430429-465
INSTALLATION
February 28, 2000 4-3