4
with suitable, non-flammable screening and/or warn them not to watch
the arc nor expose themselves to the arc rays or to hot spatter or
material.
Fumes and gases can be dangerous
•
Welding may produce fumes and gases, breathing these fumes and
gases can be hazardous to your health.
•
When welding, keep your head out of the fume. If inside, ventilate the
area at the arc to keep fumes and gases away from the breathing
zone. If ventilation is not good, wear an approved air-supplied
respirator.
•
Work in a confined space only if it is well ventilated, or while wearing
an air-supplied respirator.
•
Welding fumes and gases can displace air and lower the oxygen level
causing injury or death. Always use enough ventilation, especially in
confined areas, to insure breathing air is safe.
Welding and cutting sparks can cause fire or explosion
.
•
When not welding, make sure the electrode circuit is not touching the
work or ground. Accidental contact can cause sparks, explosion,
overheating, or fire. Make sure the area is safe before doing any
welding.
•
Welding and cutting on closed containers, such as tanks, drums, or
containers, can cause them to blow up. Make sure proper steps have
been taken.
•
When pressure gas is used at the work site, special precautions are
required to prevent hazardous situations.
•
Connect work cable to the work as close to the welding zone as
practical to prevent welding current from passing too long and creating
fire hazards or overheat.
•
Wear oil-free protective garments such as leather gloves, heavy shirt,
cuffless trousers, high shoes, and a cap. Wear ear plugs when
welding out of position or in confined places. Always wear safety
glasses with side shields when in a welding area.
•
Be attention that welding sparks and hot materials from welding can
easily go through small cracks and openings to adjacent areas and
start a fire. Remove fire hazardous from the welding area, if not
possible, cover them thoroughly. Do not weld where flying sparks can
strike flammable material and where the atmosphere may contain
flammable dust, gas, or liquid vapors (such as gasoline).
•
Protect yourself and others from flying sparks and hot metal. Remove
any combustibles from operator before perform any welding.
•
Keep a fire extinguisher readily available.
•
Empty containers, tanks, drums, or pipes which have combustibles
before perform welding.
