L-TEC PLASMAWELD 202, Инструкция по эксплуатации

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A.2.2 Maintenance of the welding and cutting equipment
The welding and cutting equipment should be routinely maintained according to the manufacturers re-
commendations. All access and service doors and covers should be closed and properly fastened when
the equipment is in operation. The welding or cutting 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.
A.2.3 Welding and cutting cables
The welding and cutting cables should be kept as short as possible and should be positioned close toge-
ther, runnig at or close to the floor level.
A.2.4 Equipotential bonding
Bonding of all metallic components in the welding or cutting installation and adjacent to it should be con-
sidered. However, metallic components bonded to the workpiece will increase the risk that the operator
could recieve an electrical shock by touching these metallic components and the electrode at the same
time. The operator should be insulated from all such bonded metallic components.
A.2.5 Earthing of the workpiece
Where the workpiece is not bonded to earth for electrical safety, or 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 in-
creasing the risk of injury to users, or damage to other electrical equipment. Where necessary, 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, selec-
ted according to National regulations.
A.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 or cutting installation may be considered for
special applications.
Annex EMC