gala gar THV 50 Guide De L'utilisateur page 3

1 - SAFETY PRESCRIPTIONS FOR ARC WELDING GENERATORS
The Safety Prescriptions given in this manual do not replace but summarize the obligations for compliance with
the current safety and accident-prevention regulations. Before install, operate or maintain the welding equipment,
read and understand carefully the current safety and accident-prevention regulations.
In any case, the personnel involved in the use of the welding machine must be adequately trained with regard to
use of the machine and observance of the fundamental welding rules.
Setting up of the work area must comply with certain fundamental principles. Basic safety of persons and things
depends on the observance of these minimum requires.
1. Personal Protection
The skin or eyes burns resulting from the exposure to the electric arc welding radiations or metal fusion can
bring more dangerous effects than sunburn. Therefore:
a) Use a protection mask equipped with the respective inhatinic filter to protect the eyes, face, neck and ears
from the projections and the arc welding radiation. Prevent the persons near the welding places of the negative
effects provoked by the arc welding radiations or metal fusion.
b) Use non-inflammable gloves, long sleeves shirt, trousers without folds, boots, welding mask, apron and hat to
protect the hair. These protections are needed to insure that the skin stays protected from the referred
radiations.
Avoid using clothes with pockets or folds so that in case of occurring any projection of hot metal these will not
deposit in the clothes' folds or pockets.
c) To protect the persons near the welding place, separations of non-inflammable curtains ought to be installed.
d) Always use safety glasses when standing in a place where metal projections can occur. Persons that
circulate in the working area ought to use safety glasses.
2. Preventing Fires
The projections can cause fires when in contact with combustible substances, liquids or gaseous. Therefore:
a) Every combustible material must stay far from the working place. When possible the combustible materials
must be covered with non-inflammable covers. These materials include wool, clothes, sawdust, natural gas,
acetylene, propane and similar materials.
b) The metal projections can penetrate in wall or floor cracks causing non detectable latent fire. These cracks
must be conveniently protected from the metal fusion projections.
c) Welding, cutting or any kind of hot operation should not be made in recipients, deposits, tanks or other kind of
used containers that haven't been carefully cleaned from substances that can produce toxic or inflammable
vapors.
d) For protection against fire must exists a fire extinguisher system nearby, that can be used quickly like a water
hose, a water recipient, sand or a portable extinguisher.
e) Once the welding operations are concluded, the working area must be inspected to insure the absence of
metal fusion projections that can cause further fires.
3. Electric Discharge
Burns or mortal electrocution can be caused by 110 voltages or less. The gravity of this kind of discharges is
determined by the intensity of electric current that passes through the human body. Therefore:
a) Do not permit contact of the skin with metal pieces or even the use of wet or humid clothing. Wear only well
dry gloves.
b) If it's really needed to make welding operations in humid places the operators must wear very well dry gloves,
rubber shoes or boots and stepping the dry floor in order to be isolated from the electric current.
c) The welding machine must be connected to an electrical board equipped with an appropriate differential and
earth connection. The earth connection wire's section must be correct according the norms about electric
cables.
d) Do not use damaged welding cables. Do not overload the cable. Cable extensions or connections must be
always correctly isolated.
e) The equipment must remain disconnected when not in use because an accidental electrical discharge can
cause overheating and provoke a fire. Do not roll the welding cable around the body.
f) The earth cable must be connected to the welding piece closest from the welding area. Welding current must
pass through metallic elevations or crane cables if long distance earth cable connections are made.
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50 KVA