HAZARD IDENTIFICATION, RISKS ASS N°
TCC ACTIVITIES
1
POTENTIAL HAZARD WHEN ? Electric shock Electric shock occurs when welders touch two metal objec that have a voltage between them, thereby inserting themselves into the electrical circuit. For instance, if a worke holds a bare wire in one hand and a second bare wire with another, electric current will pass through that wire and through the welding operator, causing an electric shock.
Arc Welding Fumes and gases
overexposure to welding fume and gases
Fire and explosions
While the welding arc may reach temperatures of 10,000 degrees Fahrenheit, the real danger is not from the arc itse but rather the intense near the arc and the heat, sparks and spatter created by the arc. Thi spatter can reach up to 35 fee away from the welding space.
2
3
6
Oxy-Fuel Gas Welding
7 8 9 10
Metal cutting by the grinder
Burns Flying sparks Fumes Flashbacks Radiation damage to eyes Explosion by gas leakage
11 12
Flammable materials are comprised of three categories: liquid, such as gasoline oil and paint; solid, such as wood, cardboard and paper; gas, including acetylene, propane and hydrogen.
FICATION, RISKS ASSESSMENTS & DETERMINING CONTROLS
WHEN ? RECOMANDED CONTROLS lectric shock occurs when 1-welding operators should wear dry gloves in good welders touch two metal objects condition, never touch the electrode or metal parts hat have a voltage between of the electrode holder with skin or wet clothing and hem, thereby inserting be sure to insulate themselves from the work and hemselves into the electrical ground, keeping dry insulation between their body ircuit. For instance, if a worker and the metal being welded or ground (such as a olds a bare wire in one hand metal floor or wet surface). 2- Welding nd a second bare wire with operators also should inspect the electrode holder for nother, electric current will damage before beginning to weld and keep the ass through that wire and welding cable and electrode holder insulation in good hrough the welding operator, condition, because the plastic or fiber insulation on ausing an electric shock. the electrode holder prevents contact with the electrically “hot” metal parts inside. Always be sure to repair or replace damaged insulation before use
MODALITIES
verexposure to welding fumes Welding areas require adequate ventilation and local nd gases exhaust to keep fumes and gases from the breathing zone and the general area
While the welding arc may before beginning to weld, inspect the work area for welding apron each temperatures of 10,000 any flammable materials and remove them from the egrees Fahrenheit, the real area anger is not from the arc itself, ut rather the intense near the rc and the heat, sparks and patter created by the arc. This patter can reach up to 35 feet way from the welding space.
ories: liquid, such as gasoline, aper; gas, including
Issue date: 03/18/201 Version: 1 page 1/ MODALITIES
welding apron