Tool Up SPARK 130 Manual Del Usuario página 9

ELECTROMAGNETIC INTERFERENCES
The electric currents flowing through a conductor cause electrical and magnetic fields (EMF). All wel-
ders should use the following guidelines to minimize exposure to the welding circuit's electromagnetic
fields:
The EMF fields may disrupt some medical implants, such as pacemakers. Protection measures should
be taken for people wearing medical implants. For example, access restrictions for passers-by or an
individual risk evaluation for the welders.
All welders should take the following precautions in order to minimise exposure to the electromagnetic fields (EMF)
generated by the welding circuit::
– position the welding cables together – if possible, attach them;
– keep your head and torso as far as possible from the welding circuit;
– never wrap the cables around your body;
– never position your body between the welding cables. Hold both welding cables on the same side of your body;
– connect the earth clamp as close as possible to the area being welded;
– do not work too close to, do not lean and do not sit on the welding machine
– do not weld when you're carrying the welding machine or its wire feeder.
People wearing pacemakers are advised to consult their doctor before using this device.
Exposure to electromagnetic fields while welding may have other health effects which are not yet
known.
RECOMMENDATIONS TO ASSESS THE WELDING AREA AND WELDING INSTALLATION
Overview
The user is responsible for installing and using the arc welding equipment in accordance with the manufacturer's
instructions. If electromagnetic disturbances are detected, it is be the responsibility of the user of the arc welding
equipment to resolve the situation with the manufacturer's technical assistance. In some cases this remedial action
may be as simple as earthing the welding circuit (see note). In other cases, it may be necessary to construct an
electromagnetic shield around the welding power source and around the entire piece by fitting input filters. In all cases,
electromagnetic interferences must be reduced until they are no longer bothersome.
Welding area assessment
Before installing the machine, the user must evaluate the possible electromagnetic problems that may arise in the area
where the installation is planned, in particular, it should consider the following:
a. Other cables, control cables, telephone cables: above, below and besides the device;
b. Radio/TV transmitters and receptors,
c. Computers and other control equipments,
d. Critical safety equipments such as industrial machines' emergency controls.
e. The health and safety of the people who are close to the machine, e.g. people who wear a pacemaker, a hearing aid,
etc ...
f. Equipment used to calibrate and measure,
g. The immunity of the other equipments installed in the welding area or near the welding machine. The user will have
to make sure that the devices in the same room are compatible with each other. This may require additional precautions.
h. The time of day during which the unit must operate;
The surface of the area to be considered around the device depends on the the building's structure and other activities
that take place there. The area taken in consideration can be larger than the limits determined by the companies.
Welding area assessment
Besides the welding area, the assessment of the arc welding systems installation itself can be used to identify and
resolve cases of disturbances. The assessment of emissions must include in-situ measurements as specified in Article 10
of CISPR 11: 2009. In situ measurements can also be used to confirm the effectiveness of mitigation measures.
RECOMMENDATION ON METHODS OF ELECTROMAGNETIC EMISSIONS REDUCTION
a. National power grid: The arc welding machine must be connected to the national power grid in accordance with
the manufacturer's recommendation. If interferences occur, it may be necessary to take additional preventive measures
such as the filtering of the power supply network. Consideration should be given to shielding the power supply cable
in a metal conduit. It is necessary to ensure the shielding's electrical continuity along the cable's entire length. The
shielding should be connected to the welding machine to ensure good electrical contact between the metal conduct and
the casing of the welding machine.
b. Maintenance of the arc welding equipment: The arc welding machine should be be submitted to a routine
maintenance check according to the manufacturer's recommendations. All accesses, service doors and covers should be
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SPARK 100 130 180 EN
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