Miller CST 250 Manual do Proprietário - Página 16

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3-6. Selecting Cable Sizes

Y ARC WELDING can cause Electromagnetic Interference.
To reduce possible interference, keep weld cables as short as possible, close together, and down low, such as on the floor.
Locate welding operation 100 meters from any sensitive electronic equipment. Be sure this welding machine is installed
and grounded according to this manual. If interference still occurs, the user must take extra measures such as moving
the welding machine, using shielded cables, using line filters, or shielding the work area.
100 ft (30 m) Or Less
Welding
10 − 60%
Amperes
Duty Cycle
100
4
150
3
200
3
250
2
300
1
350
1/0
400
1/0
500
2/0
600
3/0
700
4/0
800
4/0
900
2-2/0
1000
2-2/0
1250
2-3/0
1500
2-4/0
Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere.
OM-2238 Page 12
Total Cable (Copper) Length In Weld Circuit Not Exceeding
150 ft
(45 m)
60 − 100%
Duty Cycle
4
4
3
2
2
1
1
1/0
1/0
2/0
2/0
3/0
2/0
3/0
3/0
4/0
4/0
2-2/0
2-2/0
2-3/0
2-2/0
2-3/0
2-3/0
2-4/0
2-3/0
2-4/0
2-4/0
3-3/0
3-3/0
3-4/0
200 ft
250 ft
300 ft
(60 m)
(70 m)
(90 m)
10 − 100% Duty Cycle
3
2
1
1/0
1/0
2/0
2/0
3/0
3/0
4/0
2-2/0
4/0
2-2/0
2-3/0
4/0
2-2/0
2-3/0
2-2/0
2-3/0
2-4/0
2-3/0
2-4/0
3-3/0
2-4/0
3-3/0
3-4/0
2-4/0
3-4/0
3-4/0
3-3/0
3-4/0
4-4/0
3-3/0
4-3/0
4-4/0
4-3/0
4-4/0
4-4/0
350 ft
400 ft
(105 m)
(120 m)
1
1/0
1/0
2/0
3/0
3/0
3/0
4/0
4/0
4/0
2-2/0
2-2/0
2-3/0
2-3/0
2-3/0
2-4/0
2-4/0
2-4/0
3-3/0
3-3/0
3-4/0
3-4/0
3-4/0
4-4/0
4-4/0
4-4/0
4-4/0
S-0007-D