Scheppach WSE3500 Original Bedienungsanleitung Seite 27

Safety instructions specific to welding masks
• Always make sure that the welding mask is
functioning properly by using a bright light source
(e.g. lighter) before starting welding work.
• Welding spatter can damage the protective panel.
Replace damaged or scratched protective panels
immediately.
• Replace damaged or heavily soiled or splattered
components immediately.
• The device may only be operated by persons who
are aged 16 and above.
• Familiarise yourself with the safety instructions for
welding. Also observe the safety instructions for
your welding device.
• Always put on the welding mask when welding.
Failure to do so may result in serious retinal injuries.
• Always wear protective clothing when welding.
• Never use the welding mask without a protective
panel.
• Replace the protective panel in good time for good
visibility and fatigue-free working.
Environment with increased electrical hazards
When welding in environments
electrical hazards, the following safety instructions
must be observed.
Environments with increased electrical hazards can be
found, for example:
• At workplaces where the range of movement is
restricted so that the welder works in an enforced
posture (e.g. kneeling, sitting, lying down) and
touches electrically conductive parts;
• At workplaces which are wholly or partially bounded
by electrically conductive parts and where there is
a high risk of avoidable or accidental contact by the
welder;
• In wet, humid or hot workplaces where humidity or
perspiration significantly reduces the resistance
of human skin and the insulating properties or
protective equipment.
A metal ladder or scaffolding can also create an
environment with increased electrical hazards.
In such environments, use insulated pads and shims.
Also, gauntlet-style gloves and headgear made of
leather or other insulating material should be worn to
insulate the body from earth. The welding power source
must be located outside the work area or electrically
conductive surfaces and out of reach of the welder.
Additional protection against shock from mains current
in the event of a fault may be provided by the use of a
residual current circuit breaker operating at a leakage
current not exceeding 30 mA and supplying all mains
operated equipment in the vicinity. The residual current
circuit breaker shall be suitable for all types of current.
Means for rapid electrical disconnection of the
welding current source or welding current circuit (e.g.
emergency stop device) shall within easy reach. When
welding equipment is used in electrically hazardous
conditions, the output voltage of the welding equipment
shall not exceed 113 V (peak value) under no-load
conditions. This welding equipment may be used in
these cases because of the output voltage.
Welding in confined spaces
When welding in confined spaces, there may be a risk
of toxic gases (danger of suffocation). Welding may
only be carried out in confined spaces if instructed
persons who can intervene if necessary, are in the
immediate vicinity. Here, an assessment by an expert
must be carried out before the welding process begins
with increased to determine which steps are necessary to ensure the
safety of the work and which precautionary measures
should be taken during the actual welding process.
Summation of open circuit voltages
If more than one welding power source is in operation
at the same time, their open-circuit voltages can add
up and lead to an increased electrical hazard. Welding
power sources must be connected in such a way that
this hazard is minimised. The individual welding power
sources, with their separate controls and connections,
must be clearly marked to indicate what belongs to
which welding circuit.
Use of shoulder slings
Welding shall not be carried out while the welding
power source is worn, e.g. with a shoulder sling.
This is to prevent:
• The risk of losing balance when pulling connected
cables or hoses.
• The increased risk of electric shock due to the
welder coming into contact with earth when using
a Class I welding power source whose housing is
earthed by its protective earth conductor.
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