Fronius FOH 10-76, Инструкция по эксплуатации, обслуживание

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EMC measures In certain cases, even though a device complies with the standard limit values for
emissions, it may affect the application area for which it was designed (e.g. when there
is sensitive equipment at the same location, or if the site where the device is installed is
close to either radio or television receivers).
If this is the case, then the operator is obliged to take appropriate action
to rectify the situation.
Check and assess the immunity of equipment in the vicinity of the device in accordance
with national
and international regulations. Examples of equipment that may be susceptible to
interference from the device include:
- Safety devices
- Power, signal and data transfer lines
- IT and telecommunications devices
- Measuring and calibrating devices
Supporting measures for avoidance of EMC problems:
1. Mains power supply
- If electromagnetic interference arises despite correct mains connection, additional
measures are necessary (e.g. use a suitable line filter).
2. Welding power-leads
- Keep the power-leads as short as possible
- Allow the power-leads to run close together (also to avoid EMF problems)
- Lay the power-leads far away from other lines
3. Equipotential bonding
4. Earthing the workpiece
- If necessary, establish an earth connection using suitable capacitors.
5. Shielding, if required
- Where necessary, shield other equipment in the vicinity.
- Shield off the entire welding installation
EMF measures
with implants
Electromagnetic fields may pose as yet unknown risks to health:
- Effects on the health of persons in the vicinity, e.g. those with pacemakers and hear -
ing aids
- Individuals with pacemakers must seek advice from their doctor before approaching
the device or any welding that is in progress
- For safety reasons, maintain as large a distance as possible between the welding
cables and the head/torso of the welder.
- Do not carry welding cables and hosepacks over the shoulders or wind them around
any part of the body