10
EMC precautions
Particular danger
spots
It is the responsibility of the owner/operator to ensure that no electromagnet
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ic interference is caused to electrical and electronic equipment.
If electromagnetic interference is found to be occurring, the owner/operator
is obliged to take all necessary measures to prevent this interference.
Examine and evaluate any possible electromagnetic problems that may oc
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cur on equipment in the vicinity, and the degree of immunity of this equip
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ment, in accordance with national and international regulations:
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safety features
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mains, signal and data-transmission leads
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IT and telecoms equipment
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measurement and calibration devices
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the health of persons in the vicinity, e.g. users of heart pacemakers and
hearing aids
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users of heart pacemakers must take medical advice before going any
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where near welding equipment or welding workplaces
Electromagnetic fields may cause as yet unknown damage to health.
Ancillary measures for preventing EMC problems:
1. Mains supply
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If electromagnetic interference still occurs, despite the fact that the
mains connection is in accordance with the regulations, take addi
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tional measures (e.g. use a suitable mains filter).
2. Power supply lines
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Keep these as short as possible
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Arrange them so that they run close together
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Lay them well away from other leads.
3. Equipotential bonding
4. Workpiece grounding (earthing)
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where necessary, run the connection to ground (earth) via suitable
capacitors.
5. Shielding, where necessary
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Shield other equipment in the vicinity
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Shield the entire welding installation.
Covers and sideguards may only be opened or removed for as long as is ab
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solutely necessary to carry out maintenance and repair work.
While the machine is in use:
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ensure that all the covers are closed and that all the sideguards are
properly mounted
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and that all covers and sideguards are kept closed.
Special regulations apply to rooms at risk from fire and/or explosion. Observe
all relevant national and international regulations.
Power sources for use in spaces with increased electrical danger (e.g. boil
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ers) must be identified by the [S] (for “safety”) mark.
