Welding can cause fire or explosion

Welding on closed containers, such as tanks, drums, or pipes, can cause them to blow up. Sparks can fly off from the welding arc. The flying sparks, hot workpiece, and hot equipment can cause fires and burns. Accidental contact of electrode to metal objects can cause sparks, explosion, overheating or fire. Check and be sure the area is safe before doing any welding.

· Remove all flammables within 35 ft (10,7 m) of the welding arc. If this is not possible, tightly cover them with approved covers.

· Do not weld where flying sparks can strike flammable material.

· Protect yourself and others from flying sparks and metal.

· Be alert that welding sparks and hot materials from welding can easily go through small cracks and openings to adjacent areas.

· Watch for fire, and keep a fire extinguisher nearby.

· Be aware that welding on a ceiling, floor, bulkhead or partition can cause fire on the hidden side.

· Do not weld on closed containers such as tanks, drums or pipes, unless they are properly prepared according to AWS F4.1 (see Safety Standards).

· Connect work cable to the work as close to the welding area as practical to prevent welding current from travelling long, possibly unknown paths and causing electric shock, sparks, and the hazards.

· Do not use welder to thaw frozen pipes.

· Remove stick electrode from holder or cut off welding wire at contact tip when not in use.

· Wear oil-free protective garments such as leather gloves, heavy shirt, cuffless trousers, high shoes, and a cap.

· Remove any combustibles, such as a butane lighter or matches, from your person before doing any welding.

· Follow requirements in OSHA 1910.252 (a) (2) (iv) and NFPA 51B for hot work and have a fire watcher and extinguisher nearby.

FLYING METAL CAN INJURE EYES

· Welding, chipping, wire brushing, and grinding cause sparks and flying metal. As welds cool, they can throw off slag.

· Wear approved safety glasses with slide shields even under your welding helmet.

HOT PARTS CAN CAUSE SEVERE BURNS

· Do not touch hot parts bare handed.

· Allow cooling period before working on equipment.

· To handle hot parts, use proper tools and/or wear heavy, insulated welding gloves and clothing to prevent burns.

NOISE CAN DAMAGE HEARING

Noise from some processes or equipment can damage hearing.

· Wear approved ear protection if noise level is high.

MAGNETIC FIELDS CAN AFFECT PACEMAKERS

· Pacemakers wearers keep away.

· Wearers should consult their doctor before going near arc welding, gouging, or spot welding operations.