Protection Against Fumes And Gases; Fire/Explosion Prevention; Protection From Electrical Shock; Electromagnetic Fields & Interferences - voestalpine Böhler MB 25 DgMig Instrucciones De Uso

1.3 Protection against fumes and gases

• Fumes, gases and powders produced during the welding (cut-
ting) process can be noxious for your health.
Under certain circumstances, the fumes caused by welding
(cutting) can cause cancer or harm the foetus of pregnant
women.
• Keep your head away from any welding (cutting) gas and
fumes.
• Provide proper ventilation, either natural or forced, in the
work area.
• In case of poor ventilation, use masks and breathing apparatus.
• In case of welding (cutting) in extremely small places the work
should be supervised by a colleague standing nearby outside.
• Do not use oxygen for ventilation.
• Ensure that the fumes extractor is working by regularly check-
ing the quantity of harmful exhaust gases versus the values
stated in the safety regulations.
• The quantity and the danger level of the fumes depends on
the parent metal used, the filler metal and on any substances
used to clean and degrease the pieces to be welded. Follow
the manufacturer's instructions together with the instructions
given in the technical sheets.
• Do not perform welding (cutting) operations near degreasing
or painting stations.
Position gas cylinders outdoors or in places with good ventilation.

1.4 Fire/explosion prevention

• The welding (cutting) process may cause fires and/or explo-
sions.
• Clear the work area and the surrounding area from any flam-
mable or combustible materials or objects.
Flammable materials must be at least 11 metres (35 feet) from
the welding area or they must be suitably protected.
Sparks and incandescent particles might easily be sprayed
quite far and reach the surrounding areas even through min-
ute openings. Pay particular attention to keep people and
property safe.
• Do not perform welding (cutting) operations on or near con-
tainers under pressure.
• Do not perform welding or cutting operations on closed con-
tainers or pipes.
Pay particular attention during welding operations on pipes
or containers even if these are open, empty and have been
cleaned thoroughly. Any residue of gas, fuel, oil or similar
materials might cause an explosion.
• Do not weld (cut) in places where explosive powders, gases
or vapours are present.
• When you finish welding, check that the live circuit cannot
accidentally come in contact with any parts connected to the
earth circuit.
• Position a fire-fighting device or material near the work area.
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1.5 Protection from electrical shock

• Electric shocks can kill you.
• Avoid touching live parts both inside and outside the welding/
cutting system while this is active (torches, guns, earth cables,
electrodes, wires, rollers and spools are electrically connected
to the welding circuit).
• Do not touch two torches or two electrode holders at the
same time.
lf you feel an electric shock, interrupt the welding (cutting)
operations immediately.
1.6 Electromagnetic fields &
interferences
• The welding current passing through the internal and external
system cables creates an electromagnetic field in the proxim-
ity of the welding cables and the equipment itself.
• Electromagnetic fields can affect the health of people who
are exposed to them for a long time (the exact effects are still
unknown).
Electromagnetic fields can interfere with some equipment like
pacemakers or hearing aids.
Persons fitted with pacemakers must consult their
doctor before undertaking arc welding or plasma
cutting operations.
EMC equipment classification in accordance with EN/IEC
60974-10 (See rating plate or technical data)
Class B equipment complies with electromagnetic compatibility
requirements in industrial and residential environments, includ-
ing residential locations where the electrical power is provided
by the public low-voltage supply system.
Class A equipment is not intended for use in residential locations
where the electrical power is provided by the public low-voltage
supply system. There may be potential difficulties in ensuring
electromagnetic compatibility of class A equipment in those
locations, due to conducted as well as radiated disturbances.
Installation, use and area examination
This equipment is manufactured in compliance with the
requirements of the EN60974-10 harmonized standard and is
identified as "CLASS A" equipment.
This unit must be used for professional applications only, in
industrial environments.
The manufacturer will accept no responsability for any damages
caused by use in domestic environments.
The user must be an expert in the activity and as such
is responsible for installation and use of the equip-
ment according to the manufacturer's instructions.
lf any electromagnetic interference is noticed, the
user must solve the problem, if necessary with the
manufacturer's technical assistance.
In any case electromagnetic interference problems
must be reduced until they are not a nuisance any
longer.