GYS CAPATEK 66 FV Mode D'emploi page 22

Original instructions
RECOMMENDATIONS FOR ASSESSING THE WELDING AREA AND EQUIPMENT
General Information
The user is responsible for installing and using the capacitive discharge equipment in accordance with the manufacturer's instructions.
If electromagnetic interference is detected, it is the responsibility of the user of the capacitive discharge machine to rectify the
situation using technical assistance from the manufacturer. In some cases, this corrective action may be as simple as earthing the
welding circuit. In other cases, it may be necessary to electromagnetically shield the welding power source, and the workpiece as a
whole, by installing input filters. In all cases, electromagnetic interference should be reduced until it is no longer a concern.
Assessing the welding area
Before installing capacitive discharge equipment, the user should assess the potential electromagnetic problems in the surrounding
area. The following should be taken into account:
a) the presence above, below, and next to the capacitive discharge equipment, of power cables, command cables, and other signal
or telecommunication wiring;
b) radio and television receivers and transmitters;
c) computers and other control equipment;
d) critical safety equipment, for example, industrial equipment protection;
e) the well-being of nearby persons, for example, use of pacemakers or hearing aids;
f) the equipment used for calibrating or measurment;
g) the sensitivity of other equipment in the surrounding area.
The user must ensure that other equipment installed in the vicinity is compatible. This may require further protective measures;
h) the time of day when welding or other tasks are to be carried out.
The size of the surrounding area to be taken into account will depend on the building's structure and the other activities taking place
there. The surrounding area may extend beyond the boundaries of the facility.
Assessment of the welding equipment
In addition to assessing the area, the assessment of capacitive discharge equipment installations can be used to identify and resolve
cases of interference. The assessment of emissions should include in-situ measurements, as specified in Article 10 of CISPR 11:2009.
In-situ measurements can also be used to verify the effectiveness of any mitigation measures.
GUIDELINES ON HOW TO REDUCE ELECTROMAGNETIC EMISSIONS
a. Power supply network: The capacitive discharge unit should be connected to the power supply network in accordance with
the manufacturer's recommendations. If interference occurs, it may be necessary to take additional precautionary measures such as
filtering the mains power supply. With capacitive discharge equipment that is to be permanently installed, consideration should be
given to shielding the power cable in metal ducting or equivalent. The power cable should be protected along its entire length. The
shield should be connected to the welding power source to ensure that there is good electrical contact between the conduit and the
welding power source enclosure.
b. Maintenance of capacitive discharge equipment: Capacitive discharge equipment should be subject to routine maintenance
in accordance with the manufacturer's recommendations. All access points, service hatches, and covers must be closed and properly
secured when the capacitive discharge equipment is in use. The capacitive discharge unit must not be modified in any way, except
for those changes and adjustments mentioned in the manufacturer's instructions.
c. Welding cables: Cables should be as short as possible, and placed close together either near or on the ground.
d. Equipotential bonding: Consideration should be given to linking all metal objects in the surrounding area. However, any metal
objects connected to the workpiece will increase the risk of electric shock if the operator touches both the metal objects and the
electrode. It is necessary to insulate the operator from such metal objects.
e. Earthing the workpiece: When the workpiece to be welded is not being earthed for electrical safety reasons, or because of its
size and location, as in the case for example, of ship hulls or the steel structural frames of buildings, an earthed connection can in
some cases, but not necessarily, reduce emissions. Care must be taken to avoid earthing parts that could increase the risk of injury
to the user or cause damage to other electrical equipment. If necessary, the connection between the workpiece and earth should
be made directly, but in some countries where this direct connection is not allowed, the connection should be made with a suitable
capacitor chosen in accordance with national regulations.
f. Protection and shielding: Selective shielding and protection of other cables and equipment in the surrounding area may limit
interference problems. Protection and sheilding of the entire welding zone may be required for certain specialist applications.
TRANSPORT AND TRANSIT OF THE WELDING POWER SOURCE
The welding power source is fitted with a top handle(s) for carrying / transporting by hand. Be careful not to underestimate
its weight. The handle(s) cannot be used for slinging.
Do not use the cables or torch to move the machine.
Do not carry the power source over the heads of people or objects.
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CAPATEK 66 FV
EN