Clarke Arc/Tig135, Инструкция по эксплуатации и обслуживанию

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power source so that good electrical contact is maintained between the conduit and the welding
power source enclosure.
2.2 Maintenance of the welding equipment
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 manufacturers
instructions. In particular, the spark gaps of arc striking and stabilizing devices should be
adjusted and maintained according to the manufacturers recommendations.
2.3 Welding cables
Welding cables should be kept as short as possible and should be positioned close together,
running at or close to the floor level.
2.4 Equi-potential bonding
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.
2.5 Earthing of the workpiece
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.
2.6 Screening and shielding
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.