Clarke MIG220TE, Инструкция по эксплуатации и обслуживанию

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It may be possible to avoid the above by choosing the time of day that welding or other activities
are to be carried out.
The size of the surrounding area to be considered will depend on the structure of the building and
other activities taking place. The surrounding area may extend beyond the boundaries of the
premises.
METHODS OF REDUCING EMISSIONS
Welding equipment will be connected to the mains supply but if interference occurs, it may be
necessary to take additional precautions such as filtering of the mains supply. Consideration
should be given to shielding the supply cable of permanently installed welding equipment, in
metallic conduit or equivalent. Shielding should be electrically continuous throughout its length.
The shielding should be connected to the welding power source so that good electrical contact is
maintained between the conduit and the welding power source enclosure.
The welding equipment should be routinely maintained according to the manufacturer’s
recommendations. All access and service doors and covers should be closed and properly
fastened when the welding equipment is in operation. The welding equipment should not be
modified in any way except for those changes and adjustments covered in the manufacturer’s
instructions. In particular, the spark gaps of arc striking and stabilizing devices should be
adjusted and maintained according to the manufacturers recommendations.
The welding cables should be kept as short as possible and should be positioned close together,
running at or close to the floor level.
Bonding of all metallic components in the welding installation and adjacent to it should be
considered. However, metallic components bonded to the work piece will increase the risk that
the operator could receive a shock by touching these metallic components and the electrodes at
the same time. The operator should be insulated from all such bonded metallic components.
Where the workpiece is not bonded to earth for electrical safety, nor connected to earth because
of its size and position, e.g. ships hull or building steelwork, a connection bonding the workpiece
to earth may reduce emissions in some, but not all instances.
Care should be taken to prevent the earthing of the workpiece increasing the risk of injury to
users, or damage to other electrical equipment.
Where necessary, the connection of the workpiece to earth should be made by a direct
connection to the workpiece, but in some countries where direct connection is not permitted, the
bonding should be achieved by suitable capacitance, selected according to national regulations.
Selective screening and shielding of other cables and equipment in the surrounding area may
alleviate problems of interference. Screening of the entire welding installation may be considered
for special applications.