SAFETY
It also can be used in residential area which power is supplied by public low
voltage circuit.
EMC device can be classified by power nameplate or technical data.
Hanker welding machines belong to Class A.
§1.4 EMC measure
In the special situation, The specified area may be affected, the
standard of radiation limit value has been complied with (eg: The
device, which is easy effected by electromagnetism, is used at
the installation location, or there is radio or TV near the installation location). In
this condition, the operator should adopt some appropriate measures to remove
interference.
Accoring to the domestic and international standards, the ambient devices’
electromagnetism situation and anti-interference ability must be checked：
! Safety device
! Power line, Signal transmission line and Date transmission line
! Date processing equipment and telecommunication equipment
! Inspection and calibration device
The effective measures avoid the problem of EMC：
a) Power source
Even though the power source connection meet rules, we still need to take
additional measure to remove the electromagnetic interference. (eg: Use the
right power filter. )
b) The welding line
! Try to shorten the length of cable
! Put the cable together
! Be Far away from other cable
c) Equipotential connection
d) Ground connection of work-piece
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