Recommended Work Cable Sizes - Lincoln Electric POWER WAVE S350CE Operator's Manual

A-6
RECOMMENDED WORK CABLE
SIZES FOR ARC WELDING
Connect the electrode and work cables between the
appropriate output studs of the Power Wave®
S350CE per the following guidelines:
• Most welding applications run with the electrode
being positive (+). For those applications, connect
the electrode cable between the wire drive feed plate
and the positive (+) output stud on the power source.
Connect a work lead from the negative (-) power
source output stud to the work piece
• When negative electrode polarity is required, such
as in some Innershield applications, reverse the out-
put connections at the power source (electrode cable
to the negative (-) stud, and work cable to the posi-
tive (+) stud).
CAUTION
Negative electrode polarity operation WITHOUT
use of a remote work sense lead (21) requires the
Negative Electrode Polarity attribute to be set. See
the Remote Sense Lead Specification section of
this document for further details.
-----------------------------------------------------------------------
For additional Safety information regarding the elec-
trode and work cable set-up, See the standard "SAFE-
TY INFORMATION" located in the front of the
Instruction Manuals.
Percent Duty
Amperes
Cycle
200
60
200
100
250
30
250
40
250
60
250
100
300
60
300
100
350
40
** Tabled values are for operation at ambient temperatures of 104°F (40°C) and below. Applications above 104°F (40°C) may
require cables larger than recommended, or cables rated higher than 167°F (75°C).
INSTALLATION
OUTPUT CABLE GUIDELINES
CABLE SIZES FOR COMBINED LENGTHS OF ELECTRODE AND WORK
CABLES [RUBBER COVERED COPPER - RATED
0 to 50 Ft. 50 to 100 Ft.
2 2
2
2
3 3
2 2
1
1
1 1
1 1
2/0
2/0
1/0 1/0
POWER WAVE® S350CE
General Guidelines
• Select the appropriate size cables per the "Output
Cable Guidelines" below. Excessive voltage drops
caused by undersized welding cables and poor con-
nections often result in unsatisfactory welding perfor-
mance. Always use the largest welding cables (elec-
trode and work) that are practical, and be sure all
connections are clean and tight.
Note: Excessive heat in the weld circuit indicates
undersized cables and/or bad connections.
• Route all cables directly to the work and wire feeder,
avoid excessive lengths and do not coil excess
cable. Route the electrode and work cables in close
proximity to one another to minimize the loop area
and therefore the inductance of the weld circuit.
• Always weld in a direction away from the work
(ground) connection.
Table A.1 shows copper cable sizes recommended for
different currents and duty cycles. Lengths stipulated
are the distance from the welder to work and back to
the welder again. Cable sizes are increased for
greater lengths primarily for the purpose of minimizing
cable drop.
(Table A.1)
167°F (75°C)]
100 to 150 Ft. 150 to 200 Ft.
2 1
2 1
2 1
1 1
1 1
1 1
1 1/0
2/0 2/0
2/0 2/0
A-6
**
200 to 250 Ft.
1/0
1/0
1/0
1/0
1/0
1/0
2/0
3/0
3/0