12
correct electrode diameter and current making reference to the table below:
TABLE 1:
PLATE THICKNESS (mm)
ELECTRODE DIAMETER (mm)
CURRENT SETTING(A)
2.0 – 3.0
2.0
50 - 80
3.0 – 4.0
3.2
70 - 120
4.0 – 6.0
4.0
110 - 170
>7.0 5.0
140
-
210
9.2.
Selecting the welding cable:
Table 2 shows the current carrying capacity of various lengths and gauges of standard copper
welding
Caution
•
Always allow a considerable safety margin when selecting welding cable.
•
The life span of the welder will be shortened if the specification cable fails to meet the
requirements.
TABLE 2:
CABLE GUAGE
CABLE SQ (MM2)
LENGTH (METERS)
0 - 15
15 - 30
30 - 40
CURRENT CAPACITY (AMPERES)
1 35
250
200
150
2 25
200
150
100
