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20. Always read the Material Safety Data Sheets (MSDS) that should be
supplied with the material you are using. These MSDSs will give you the
information regarding the kind and amount of fumes and gases that may be
dangerous to your health.
21. It is very important to arrange for sufficient ventilation, especially when
welding in enclosed spaces. We suggest using suitable fume extractors to
prevent the risk of intoxication by fumes or gas generated by the welding
process.
22. Noise can cause permanent hearing loss. Welding arc processes can
cause noise levels to exceed safe limits. You must protect your ears from
loud noise to prevent permanent loss of hearing.
23. To protect your hearing from loud noise, wear protective ear plugs and/or
ear muffs. Protect others in the workplace.
24. Noise levels should be measured to be sure the decibels (sound) do not
exceed safe levels.
25. The operator must ensure all flammable materials are removed from the
work area to avoid any risk of fire.
26. The operator must NEVER weld containers that have previously
contained petrol, lubricants, gas or similar flammable materials, even if the
container has been empty for a considerable time. THERE IS A VERY HIGH
RISK OF EXPLOSION.
27. The operator must be aware of all the special regulations which he needs
to conform to when cutting in enclosed spaces with a high risk of explosion.
28. To prevent electric shock, we strongly suggest the following rules:
29. Do not work in a damp or humid environment.
30. Do not use the machine if its cables are damaged in any way.
31. Make sure that the earthing system of the electric equipment is correctly
connected and operational.
32. The operator must be insulated from the metal components connected
to the return wire.
33. The earthing of the piece being worked could increase the risk of injury
to the operator.
34. EN 60974-1 Standard: Open-circuit voltage. During the operation of the
machine, the highest voltage, with which it is possible to come into contact,
is the open-circuit voltage between the clamps.
35. The maximum open-circuit voltage of the plasma machines is
established by national and international standards (EN 60974-1)
depending on the type of current to be used, on its waveform and on the
hazards arising from the work place. These values are not applicable to the
strike currents and those for stabilisation of the arc that could be above it.
