BOC Smootharc Multi 180 - Page 9

9BOC Smootharc Multi 180/200 Operating manual
Do
Always
Don‘t
How important is the correct
input cable and plug on
a welding machine?
The size of the plug depends on a formula that
not only uses the maximum current draw but
also the duty cycle of the power source. Theuse
of any welding power source will not only cause
the machine itself to heat up, but the input cable,
plug and mains power circuit will increase in
temperature as well. That’s why it’s important
to understand input and output currents and to
make sure that the input circuit is correctly rated
to supply the required input draw. Thisallows the
machine to operate at or near maximum output
and protects the circuit board from tripping,
overheating and/or catchingre.
For your safety, BOC meets
AS/NZS Standards for safe
electricalcompliance
Regulatory Compliance Mark (RCM)
andnumber
All BOC welding machines undergo an
independent certication process to meet
Australian and New Zealand regulations
regarding electrical safety. The triangle-circle-
tick (RCM) symbol signies that BOC has taken
the necessary steps to have the product comply
with the electrical safety and/or electromagnetic
compatibility (EMC) legislative requirements as
specied by the Electrical Regulatory Authorities
Council (ERAC). Depending on the machine, BOC
may be required to have a 32A single phase
plug to ensure that when the machine runs at
its maximum output, the input supply plug and
lead will not overheat. For your safety, please
check for this symbol before buying any welding
machine in Australia and NewZealand.
Check the rating plate
onyourmachine
All welding machines that comply with IEC 60974
or AS 60974 must have a rating plate similar to
the one shown. Welding machines draw some
current when idle (not welding) and a higher
current when welding. E󹟽ective rated primary
current (I
1e󹟽
) combines the conductor heating
due to these two levels of current. I
1e󹟽
is the
maximum rated e󹟽ective supply current that
determines the minimum plug and input cable
rating as well as the minimum capacity of the
input circuit that the machine gets plugged
into to safely operate the machine. Look for
the I
1e󹟽
(see lower right in our example) on the
welding machine’s rating plate and ensure that
you have the correct input circuit to support this
powerdraw.
What if I don’t have a 240 volt
15 amp or 32 ampoutlet?
If you don’t have a suitable power outlet, you
should contact a qualied electrician to advise
whether the wiring in your building will cater for
a 15 amp or 32 amp outlet. You mayalso need
to upgrade your circuit breakers and possibly
switchboard to suit. Failure to do this may cause
an electrical re in the building which may
voidinsurances.
✓ Use the correct input current,
✓ cable and ✓ plug in accordance
with AS60974-1 for your safety and
to get the maximum performance
from your welding machine.
Example
If the I
1e󹠋
rating on your
machine is 27A then you must
use a 32A plug as a 15A is
undersized for the welding
current being used and may
cause the cable to overheat.
✖ Risk damage to your machine
or cause tripping and/or re by
using the wrong input current,
cable orplug.
✖ Tamper with plugs or
ledown earth pins. Doing so
willvoidwarranty.
✓ Inspect cables and plugs regularly.
✓ Contact a qualied electrician
for advice and/or upgrade and, if
needed, to replace any damaged
plugs orcables.
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