Nippon Gases 2719135, Руководство по эксплуатации и технике безопасности, Страница: 7 / 44

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MICROTIG DC 162 / 202 PULSE
ES
PT
- Computers and other control equipment.
- Safety-critical equipment, in particular the monitoring of industrial equipment.
- Health of the people around, in particular those wearing cardiac stimulants and hearing aids.
- Equipment used for calibration.
- Immunity of other surrounding equipment. The user must ensure that these materials are
compatible. This may require additional protective measures.
- Time at which welding materials and other equipment operate.
2.1. Methods to reduce emissions
Power supply
The welding equipment must be connected to the mains according to the manufacturer's instructions.
Should interference occur, it may be necessary to take additional precautions such as filtering the
power supply. It is necessary to take into account the shielding of the power cables of welding
equipment permanently installed in metallic conduits or equivalent. Shielding must be carried out in
compliance with electrical continuity. The welding source must be connected in such a way that there
is always a good electrical contact.
Welding Cables
Welding cables should be as short as possible and in good serviceable condition (no splices), on or near
the ground.
Equipotential bonding
The links between all metallic components in and adjacent to the welding installation must be taken
into account. However, metallic components connected to the part being worked on increase the risk
of electric shock if the user touches the metallic components and the electrode at the same time. The
user must be isolated from all connected metallic components.
Earth connection
When the part to be welded is not earthed for electrical safety reasons or because of its size or position
(e.g. ship hull, steel mill), a connection of the part to earth may reduce emissions in some cases. Care
must however be taken to ensure that this connection does not increase the risk of injury to the user or
damage other electrical equipment. When necessary, the grounding of the part must be made by a
direct connection, but in some countries where this is not authorised, the connection must be made by
a capacitance resistor and according to national regulations.
Shielding and protection
Selective shielding and protection of other cables and materials in the surrounding area can limit
interference problems. Shielding of the entire welding installation may be considered for special
applications.