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CAUTION:
- The UV radiation produced by the arc welder can cause damage to the eyes
and burns to the skin.
- Arc welding produces sparks and drops of molten metal. The workpiece beco-
mes so hot that it begins to glow and stays hot for a relatively long period.
- Arc welding can produce harmful vapours / fumes.
- All electric shocks can be deadly.
- Do not come any closer than 15 metres to the arc without suitable protective
equipment.
- Always ensure bystanders are protected from the dangerous effects of the arc.
CAUTION:
- During welding, overloaded mains circuits can interfere with other electrical
items. In case of doubt, contact your service provider.
Sources of danger when arc welding
There are many sources of danger when arc welding. It is very important that the
person using the welder follows the safety instructions below to avoid danger to
others and the machine itself.
• Do not use the welder on surfaces with a gradient of more than 10°.
• Any work or repairs to be carried out on the power supply e.g. the cable, mains
connection etc. must be carried out by an authorised person. This is especially im-
portant if you wish to extend the mains cable.
• The machine must be disconnected from the mains immediately if an accident occurs.
• The machine must be disconnected from the mains immediately and repaired by
a qualified electrician if you receive an electric shock on contact with the machi-
ne housing.
• Ensure that a good electrical connection exists between the workpiece and the earth clamp.
• Always wear insulated welding gauntlets on both hands while welding. This pre-
vents electric shock, protects you against radiation (heat and UV radiation) and pre-
vents the risk of burns caused by flying sparks, slag or molten metal.
• Wear sturdy insulated boots. The boots must also insulate in damp conditions. Do
not weld in loafers or low shoes as molten metal can cause serious burns.
• Do not wear clothing made of synthetic material.
• Never look at the arc with the naked eye. Always use a head shield fitted with a lens
approved to DIN 9-11.
As well as light and heat radiation which can dazzle or lead to burning of the retina, the
arc also emits UV radiation. If adequate precautions are not taken, the invisible UV ra-
diation causes very painful inflammation of the conjunctiva which only becomes noti-
ceable several hours after exposure. In addition, UV radiation has an effect similar to
sunburn on unprotected parts of the body.
• Any persons in the area, particularly persons helping on the job must be informed
of the dangers and must wear protective clothing and a head shield with a safety lens.
• Due to the risk of explosion, fire and / or the risk of poisoning due to toxic gas,
containers which have been used to store gases, fuel, mineral oil or similar may
not be welded under any circumstances, even after they have been empty for a
long period of time.
• Special regulations apply to welding in potentially explosive environments.
• Joints which are exposed to stress and which are subject to strict safety regula-
tions may only be welded by specially trained and authorised welders.
Examples of these are:
pressure vessels, gas cylinders, rails, towing hooks and transport equipment etc.
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