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electrical safety
for single-phase equipment
BOC welding machines are designed and manufactured to conform
to IEC 60974 or AS 60974. This Standard not only covers the machine
but also the input cable and plug requirements including the size of
the plug that should be used.
X
Rated duty cycle
I
1
Rated
supply current
AS 60974-1
Formula in clause 3.33
Maximum effective supply current
√
I
× X + I
I
=
2
1eff
1
Remember...
Before operating your welding machine, follow the instructions in the operating
manual. For more information refer to WTIA TN 22 – Welding Electrical Safety (Revised
2003) and WTIA TN 07 Health & Safety in Welding. If you have any queries please
contact BOC 131 262 (AU), 1800 111 333 (NZ).
8
I
0
Rated no-load
supply current
(1-X)
2
0
The I1eff determines the correct plug, input cable
and input current required for each machine.
10A
I
≤
1eff
15A
I
≤
1eff
25A
I
≤
1eff
32A
I
≤
1eff
min – max
cable size
1.5 – 2.5 mm
2
1.5 – 4 mm
2
2.5 – 6 mm
2
4 – 10 mm
2
size must be indicated
on the cable
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