WilTec TIG180 Operation Manual page 5

ATTENTION:
•
Welding arc radiation can cause eye damages and skin burns.
•
Sparks and drops of melted metal form during arc welding. The welded piece begins to glow
and stays hot during quite a long time.
•
Vapours that might be harmful form during arc welding.
•
Every electric shock might be deadly.
•
Define safety distances for the welding zone and make sure that unauthorised persons and/or
persons not wearing protective clothing cannot enter the work zone. Danger by flying sparks!
•
Protect yourself and bystanders from all possible dangers caused by arc welding.
Hazard sources during arc welding
Many hazards are caused by arc welding. Therefore, it is very important that the welder obeys
the following regulations for not to endanger himself or herself or other persons and to avoid
damages to the device and persons.
•
Should contact voltages form, immediately switch off the device and have it checked by a
qualified person.
•
Make sure that all electric contacts on the welding-current side are always in good
condition.
•
During welding, always wear insulating gloves on both hands. They will protect you from
electric shocks (e.g., cause by no-load voltage of the welding circuit), harmful radiation
(warmth and ultraviolet rays), glowing metal, and slag splashes.
•
Wear solid insulating footwear; the shoes should keep their insulating feature in wet condi-
tions. Mid-height footwear is not suitable, for glowing metal drop falling down can cause burns.
•
Wear suitable clothing, no synthetical clothing.
•
Do not look into the welding arc without eye protection; only use a welding helmet with
protective glass according to DIN. Besides light and heat radiation causing glares and burns,
the welding arc also emits ultraviolet rays. If the protection is inadequate, these invisible ultra-
violet rays cause very painful conjunctivitis (pinkeye) that only becomes noticeable a few
hours later. Moreover, UV radiation has an effect on unprotected skins as would have sun-
burn.
•
Persons or assistant near the welding arc must be informed about the dangers and be
equipped with the necessary protection means; if necessary, mount protective panels.
•
No welding works may be performed on containers where gases, fuels, mineral oils,
etc. are stored or have been stored, even in case they have been emptied a long time
ago; residues might cause explosions.
•
There are special regulations for welding work to be performed in rooms with an in-
flammable or explosive ambiance.
Risk of accident caused by electric shock
With no welding arc burning, there is a no-load voltage U0 between the earth terminal and elec-
trode holder. This voltage can be dangerous to life if the welder touches the metal clamping
jaws of the electrode holder and the piece with unprotected hands.
Narrow and hot rooms: Performing work in narrow or hot rooms is a special risk situation that necessi-
tates additional, special protective clothing to be worn. Insulating pads (e.g., rubber mats, wood
grates, etc.) must possibly be used.
Risk of accidents caused by deficiency of air in narrow rooms: Considerable quantities of vapour
and gas form during welding. Make sure that vapours and gases can escape through suitable vents.
However, do not take in oxygen. This would increase the risk of fire.
© by WilTec Wildanger Technik GmbH
http://www.WilTec.de
http://www.aoyue.eu
http://www.teichtip.de
Item 61707, 61708 Page 5
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