| ENDANGERMENT |
FACTORS TO WATCH ON |
PRECAUTIONARY METHODS |
Electric Shock can kill
|
 Wetness
Welder in or on workplace
Confined space
Electrode holder and cable insulation
|
 Insulate welder from workplace and ground using dry
insulation like rubber mat or wood materials.
Do not touch on the HOT parts or electrode with bare skin
or wet clothing.
Wear dry, hole-free gloves.
Keep electrode holder and cable insulation in good
condition. Do not use if insulation damaged or missing.
If requirement to work in wet area, use a semiautomatic
constant voltage welder or stick welder with voltage
reducing device.
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Fumes & Gases can be dangerous
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Confined area
Positioning of welder’s head
Lack of general ventilation
Electrode types, i.e. manganese, chromium, etc.
Refer to MSDS
Base metal coatings, galvanize, paint.
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Use ventilation or exhaust to keep air breathing zone clear,
comfortable.
Use helmet and positioning of head to minimize fume for
breathing.
Read warnings instruction for electrode on the electrode
container & material safety data.
Provide additional ventilation/exhaust where special
ventilation requirement is needed.
Use special care when welding in a confined area.
Do not weld unless ventilation is adequate.
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Welding sparks can cause fire or explosion
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Containers which have held combustibles
Flammable materials
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Do not weld on containers which have held combustible
materials (unless strict AWS F4.1 procedures are
followed). Check before conducting welding work.
Remove flammable materials from welding area or shield
from sparks & heat.
Keep a fire watch in area during and after welding
Install a fire extinguisher in the welding designated area.
Wear fire retardant clothing and hat. Use earplugs when
welding overhead.
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Arc rays can burn eyes and skin
|
Process: gas-shielded arc most severe
|
Select a filter lens which is comfortable for you while
welding.
Always use helmet when welding
Provide non-flammable shielding to protect others.
Wear clothing which protects skin.
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General work area hazards
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Cluttered area
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Keep cables, materials, tools neatly organised
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| Indirect work (welding ground) connection
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Connect work cable as close as possible to area where
welding is being performed. Do not allow alternate circuits
through scaffold cables, hoist chains, ground leads.
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| Electrical equipment
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Use only double insulated or properly grounded equipment
Always disconnect power to equipment before servicing
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| Gas cylinders
|
Never touch cylinder with the electrode
Never lift a machine with cylinder attached
Keep cylinder upright and chained to support
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