WilTec TIG180 Operation Manual page 5

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Define safety distances for the welding area and ensure that unauthorized persons and/or peo-
ple without protective clothing cannot enter the work area. Danger from flying sparks!
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Protect yourself and bystanders against the possible dangers of the electric arc.
Sources of danger during arc welding
There are quite a lot of dangers associated with arc welding. It is therefore particularly important
for the welder to observe the following rules in order not to endanger himself or others and to
avoid damage to man and machine.
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If electrical contact voltage occurs, immediately switch off the device and have it checked by
a specialist.
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Make sure that the electrical contacts on the welding current side are always in good
condition.
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Always wear insulating gloves on both hands when welding. They are a protection against
electric shock (e.g., with open-circuit voltage of the welding circuit), against harmful radiation
(heat and UV radiation) as well as against glowing metal and slag splashes.
•
Wear sturdy, insulating footwear; the shoes should also insulate under wet conditions. Half-
shoes are not suitable, as falling, glowing metal drops cause burns.
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Wear suitable clothing, no synthetic clothing.
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Do not look into the arc with unprotected eyes, only use a welding protection shield with
protective glass in accordance with DIN. In addition to light and heat rays, which cause glare or
burns, the arc also emits UV rays. If there is insufficient protection, this invisible ultraviolet radi-
ation causes a very painful conjunctivitis, which only becomes noticeable a few hours later. In
addition, the UV radiation affects unprotected parts of the body such as harmful sunburn.
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People or helpers near the arc must also be made aware of the dangers and equipped
with the necessary protective equipment; if necessary, install protective walls.
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On containers in which gases, fuels, mineral oils, etc. are stored/have been stored, no
welding work may be carried out, even if they have been emptied for a long time, as there
is a risk of explosion with residues.
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Special regulations apply in rooms with fire or explosive hazards.
Risk of accident from electric shock
If no arc is burning, there is a no-load voltage U
holder. This voltage can be life-threatening if the welder touches the metal clamping jaws of the
electrode holder and the workpiece with bare hands.
Narrow and hot rooms: When working in narrow or hot rooms, there is a special hazard situation
that can make it necessary to wear additional, special protective clothing. Under certain circumstances,
insulating intermediate layers (rubber mats, wooden gratings, etc.) must be used.
Risk of accident due to lack of air in confined rooms
A lot of smoke and gases are produced during welding. Make sure that smoke and gases can
always escape through a suitable opening. But never add oxygen. This would increase the risk of fire.
Protective clothing
While working, the welder must be protected against radiation and burns over his entire body by
clothing and face protection.
Risk of fire from spraying sparks
If molten or glowing metal or slag particles fall on flammable materials, they can ignite and cause
a fire. Therefore, remove all flammable objects from your work area before starting welding work.
© by WilTec Wildanger Technik GmbH
http://www.WilTec.de
http://www.aoyue.eu
http://www.teichtip.de
between the earth terminal and the electrode
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