GYS PROTIG 221 DC FV Manuel D'utilisation page 19

Operating manual
people with implanted medical devices. For example, restricted access for passers-by or an individual risk assessment for welders.
All welders should use the following procedures to minimise exposure to electromagnetic fields from the welding circuit:
• Position the welding cables together, securing them with a tie if possible.
• Position yourself (torso and head) as far as possible from the welding circuit.
• Never wrap welding cables around your body.
• Do not position your body between the welding cables.
• Keep the two welding cables on the same side of your body.
• Connect the return cable to the workpiece as close as possible to the area being welded.
• Do not work near the welding machine and certainly do not sit on it or lean against it.
• Do not weld when transporting the welding machine or wire feeder.
People with pacemakers should consult a physician before using this equipment.
Exposure to electromagnetic fields while welding may have other health effects that are not yet known.
ASSESSING THE WELDING AREA AND EQUIPMENT
General information
The user is responsible for installing and using the arc-welding equipment according to the manufacturer's instructions. If electromagnetic disturbances
are detected, it is the user's responsibility to resolve the situation with 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 build an electromagnetic shield around the welding
equipment, as well as the entire workspace complete with entry filters. In all cases, electromagnetic disturbances must be reduced until they are no
longer bothersome.
Assessing the welding area
Before setting up any arc-welding equipment, the user must assess potential electromagnetic problems in the surrounding area. The following must
be taken into account:
a) Check for other power cables, control cables, signalling cables or telephone cables either above, below or next to the arc-welding equipment.
b) Check for radio and television receivers and transmitters.
c) Check for computers and other control equipment.
d) Check for critical safety equipment around the welding equipment to protect industrial equipment.
e) Check the health condition of people nearby, for example, confirm that no one is fitted with a pacemaker or hearing aid device.
f) Check that all the welding equipment has been properly calibrated or measured.
g) Check that equipment in the surrounding area will not be damaged.
It is up to the user to ensure that all other equipment used in the surrounding area is compatible with this welding machine. This may require additional
protective measures.
h) Check the time of day when welding activities, or other activities, are to be carried out.
The size of the surrounding area to be taken into account depends on the structure of the building and the other activities that take place there. The
surrounding area may extend beyond the boundaries of the facility in which you are working.
Assessing the welding equipment
In addition to assessing the area, an assessment of the arc-welding equipment can identify and resolve disruptions. The emissions assessment
should include in situ readings as specified in Article 10 of CISPR 11. In situ readings can also confirm the effectiveness of mitigation measures.
HOW TO REDUCE ELECTROMAGNETIC RADIATION
a. The public mains network: Arc-welding equipment should be connected to the public mains network according to the manufacturer's
recommendations. If interference occurs, it may be necessary to take additional preventive measures such as filtering the public power-supply
network. Consideration should be given to shielding the power cable inside a metal conduit or similar device for permanently installed arc-welding
equipment. The shielding used must be electrically continuous along its entire length. The shield should be connected to the welding machine's power
source to ensure good electrical contact between the conduit and the power source's casing.
b. Maintaining arc-welding equipment: Arc-welding equipment should be routinely maintained according to the manufacturer's recommendations.
All access points, service doors and protective covers must be closed and properly locked when the arc-welding equipment is in use. Arc-welding
equipment should not be modified in any way, except for modifications and adjustments stated within the manufacturer's instructions. In particular, the
ignition system's spark gap and arc-stabilisation features must be calibrated and serviced in accordance with the manufacturer's recommendations.
c. Welding cables: Cables should be as short as possible and placed close to each other. They should be close to, or directly on, the ground.
d. Equipotential bonding: Consideration should be given to bonding all metal objects in the surrounding area. However, metal objects attached to
the workpiece increase the risk of electric shocks if the operator touches both these metallic parts and the electrode at the same time. The operator
must be electrically insulated from any such metallic objects.
e. Earthing the workpiece: When the workpiece is not electrically earthed for electrical safety reasons or due to its size and location (a ship's hull or
a building's structural metal framework), an earthed connection can, in some cases but not always, reduce radiation. Care should be taken to avoid
earthing component parts which could increase the risk of injury to users or damage to other electrical equipment. If necessary, the workpiece's earth
connection should be made directly, however, in certain countries a direct connection is not allowed. Therefore, the connection should be made with
a suitable capacitor chosen according to national regulations.
f. Protection and shielding: Selective protection, as well as the shielding of other cables and equipment in the surrounding area, can limit interference
problems. For special applications, the entire welding area can be protected.
TRANSPORTING THE WELDING MACHINE
The welding machine is equipped with an upper handle allowing it to be carried by hand. Be careful not to underestimate its
weight. The welding machine is not designed to be hung up from this handle.
Do not use the cables or the torch to move the welding unit. It must be transported in an upright position.
Translation of the original
instructions
PROTIG 221 DC FV / TIG 300 DC
19