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SAFETY IN THE SHOP A GUIDE TO SAFETY WHILE ARC WELDING. PRESENTATION OUTLINE. GENERAL SHOP SAFETY HOUSEKEEPING FIRE PREVENTION MANAGEMENT WELDING SHOP SAFETY EYE PROTECTION DRESS CODE BEHAVIOR VENTILATION. Housekeeping. Cleaning work areas Sweeping—prevent slips and falls - PowerPoint PPT Presentation
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SAFETY IN THE SHOPA GUIDE TO SAFETY WHILE ARC
WELDING
PRESENTATION OUTLINEGENERAL SHOP SAFETY
HOUSEKEEPINGFIRE PREVENTIONMANAGEMENT
WELDING SHOP SAFETYEYE PROTECTIONDRESS CODEBEHAVIORVENTILATION
HOUSEKEEPING Cleaning work areas Sweeping—prevent slips and falls Keeping designated walking areas clear of
debris Restoring equipment and tools after job is
completed
FIRE PREVENTION Discard frayed cords and wires
Keep flammable liquids away from heat
Class C fire extinguishers for electrical fires
GENERAL MANAGEMENT Safety programs—training, meetings, etc.
Emergency phone numbers
Never Weld near water
SAFETY
Eye & Ear Protection
Welding Helmet with Lens Shade Number
Welding Gloves & Optional Covering
Proper Attire
SAFETY: EYE PROTECTION “An ounce of prevention is worth a pound of
cure” when it comes to eye protection Always wear proper eye protection when
working in the shop A welder must be protected from harmful light
radiation given off by the welding process For welding you will be using chipping goggles
and a welding helmet
Here are examples of proper eye protection
Here’s a good example of a welder wearing all the proper welding protection
Hearing ProtectorsSafety Glasses
Goggles
Ear Plugs
EYE & EAR PROTECTION
WELDING HELMET
LENS SHADES SELECTION FOR SHIELDED METAL ARC WELDINGMinimum Suggested *
Electrode Size Arc Protective Shade No.Operation in. (mm) Current (A) Shade (Comfort)
GMAW Less than 60 7 10Not Specified
60-160 8 12Per
160-250 10 12AWS / ANSI
250-550 11 14
* As a rule of thumb, start with a shade that is too dark to see the weld zone. Then go to a lightershade, which gives sufficient view of the weld zone without going below the minimum.
AWS/ANSI LENS SHADE NUMBERS
DRESS CODE Wear properly fitted clothes. When welding, sleeves should be buttoned and
gloves should be worn. Wear boots or high top; Tightly laced shoes. Do not wear loose clothing, shirt tails, and
unbuttoned sleeves around power equipment. Do not wear clothes that you do not want to
get dirty.
Leather Welding TrousersLeather Cape Sleeves/Bib
Leather Welding Jacket
Leather Welding Gloves
Leather Welding Apron
WELDING COVERINGS
PROPER ATTIRE
BEHAVIOR Most accidents are caused by carelessness Caused by human error Refrain from getting involved in poor
shop behavior:scuffling playing with toolstripping runningpushing hurrying projects disobeying shop rules loud talking
WELDING FUMES Welding fumes can be harmful to the welder
causing implications such as: Irritation of the respiratory tract Metal fume fever A condition known as siderosis Slightly increase the risk of lung cancer
For these reasons, one should take precaution with welding fumes
WELDING FUMES
Welding should be done in a well ventilated area
Should attempt to control fumes at the source Common ways
Extracted benches Local exhaust
ventilation
COMMON VENTILATION PRACTICES
Extracted bench method Local exhaust ventilation
EXAMPLES OF WELDING PRACTICES
POSTERSWhat is the Issue
Effects/Hazards Prevention
SAFETY
Electrical Hazards Fumes and GasesArc RadiationFire or ExplosionHazards in the Work
Area
ELECTRICAL HAZARDS High Voltage Can Kill
Do Not Operate With Covers Removed Disconnect Input Power Before Servicing Do Not Touch Electrically Live Parts
Electrical Shock Can Kill Do Not Touch Electrode With Skin or Wet Clothing Insulate Yourself From Work and Ground
FUMES & GASES Welding May Produce Hazardous
Fumes And Gases
Shielding Gases Can Displace Air and May Cause Injury or Death
Use Ventilation To Keep Air Breathing Zone Clear
Do Not Weld Near Chlorinated Hydrocarbons
ARC RADIATION Electric Arc Welding Rays Can
Burn Eyes and Skin
Always Use a Helmet When Arc Welding
Select Appropriate Filter Lens
Wear Appropriate Clothing
Provide Non-Flammable Shielding to Protect Others
FIRE OR EXPLOSION Remove Flammable Materials From
The Welding Area
Keep a Fire Extinguisher in the Welding Area
Wear Fire Retardant Clothing
Do Not Weld on Containers Which Have Held Combustible Materials
GENERAL WORK AREA HAZARDS Keep Power Source Cables, Welding
Materials and Tools Neatly Organized Connect Work Cable as Close as Possible to
the Weld Area Use Only Properly Grounded Equipment Always Disconnect Power to Arc Welding
Equipment Before Servicing