Advertisement
Available languages
Available languages
WARNING:
hese Safety Precautions are for your
T
protection. They summarize precautionary infor-
mation from the references listed in Additional
Safety Information section. Before performing any
installation or operating procedures, be sure to read and
follow the safety precautions listed below as well as all other
manuals, material safety data sheets, labels, etc. Failure to
observe Safety Precautions can result in injury or death.
PROTECT YOURSELF AND OTHERS
Some welding, cutting, and gouging pro-
cesses are noisy and require ear protec-
tion. The arc, like the sun, emits ultraviolet
(UV) and other radiation and can injure
skin and eyes. Hot metal can cause burns.
Training in the proper use of the processes and equip-
ment is essential to prevent accidents. Therefore:
1. Always wear safety glasses with side shields in any work
area, even if welding helmets, face shields, and goggles
are also required.
2. Use a face shield fitted with the correct filter and cover
plates to protect your eyes, face, neck, and ears from
sparks and rays of the arc when operating or observing
operations. Warn bystanders not to watch the arc and not
to expose themselves to the rays of the electric-arc or hot
metal.
3. Wear flameproof gauntlet type gloves, heavy long-sleeve
shirt, cuffless trousers, high-topped shoes, and a welding
helmet or cap for hair protection, to protect against arc rays
and hot sparks or hot metal. A flameproof apron may also
be desirable as protection against radiated heat and
sparks.
4. Hot sparks or metal can lodge in rolled up sleeves, trouser
cuffs, or pockets. Sleeves and collars should be kept
buttoned, and open pockets eliminated from the front of
clothing
5. Protect other personnel from arc rays and hot sparks with
a suitable nonflammable partition or curtains.
6. Use goggles over safety glasses when chipping slag or
grinding. Chipped slag may be hot and can fly far. By-
standers should also wear goggles over safety glasses.
FIRES AND EXPLOSIONS -- Heat from
flames and arcs can start fires. Hot slag or
sparks can also cause fires and explo-
sions. Therefore:
1. Remove all combustible materials well away from the work
area or cover the materials with a protective nonflammable
covering. Combustible materials include wood, cloth, saw-
dust, liquid and gas fuels, solvents, paints and coatings,
paper, etc.
2. Hot sparks or hot metal can fall through cracks or crevices
in floors or wall openings and cause a hidden smoldering
fire or fires on the floor below. Make certain that such
openings are protected from hot sparks and metal."
3. Do not weld, cut or perform other hot work until the
workpiece has been completely cleaned so that there are
no substances on the workpiece which might produce
flammable or toxic vapors. Do not do hot work on closed
containers. They may explode.
4. Have fire extinguishing equipment handy for instant use,
such as a garden hose, water pail, sand bucket, or por-
table fire extinguisher. Be sure you are trained in its use.
5. Do not use equipment beyond its ratings. For example,
overloaded welding cable can overheat and create a fire
hazard.
15-660
SAFETY PRECAUTIONS
6. After completing operations, inspect the work area to
7. For additional information, refer to NFPA Standard 51B,
--
1. Be sure the power source frame (chassis) is connected
2. Connect the workpiece to a good electrical ground.
3. Connect the work cable to the workpiece. A poor or
4. Use well-maintained equipment. Replace worn or dam-
5. Keep everything dry, including clothing, work area,
6. Make sure that all parts of your body are insulated from
7. Do not stand directly on metal or the earth while working
8. Put on dry, hole-free gloves before turning on the
9. Turn off the power before removing your gloves.
10. Refer to ANSI/ASC Standard Z49.1 (listed on next
1. Welders having pacemakers should consult their physi-
2. Exposure to EMF may have other health effects which are
3. Welders should use the following procedures to minimize
3
make certain there are no hot sparks or hot metal which
could cause a later fire. Use fire watchers when neces-
sary.
"Fire Prevention in Use of Cutting and Welding Pro-
cesses", available from the National Fire Protection As-
sociation, Batterymarch Park, Quincy, MA 02269.
ELECTRICAL SHOCK -- Contact with live
electrical parts and ground can cause
severe injury or death. DO NOT use AC
welding current in damp areas, if move-
ment is confined, or if there is danger of
falling.
to the ground system of the input power.
missing connection can expose you or others to a fatal
shock.
aged cables.
cables, torch/electrode holder, and power source.
work and from ground.
in tight quarters or a damp area; stand on dry boards or
an insulating platform and wear rubber-soled shoes.
power.
page) for specific grounding recommendations. Do not
mistake the work lead for a ground cable.
ELECTRIC AND MAGNETIC FIELDS —
May be dangerous. Electric current flow-
ing through any conductor causes lo-
calized Electric and Magnetic Fields
(EMF). Welding and cutting current cre-
ates EMF around welding cables and
welding machines. Therefore:
cian before welding. EMF may interfere with some pace-
makers.
unknown.
exposure to EMF:
A. Route the electrode and work cables together. Secure
them with tape when possible.
B. Never coil the torch or work cable around your body.
C. Do not place your body between the torch and work
cables. Route cables on the same side of your body.
D. Connect the work cable to the workpiece as close as
possible to the area being welded.
E. Keep welding power source and cables as far away
from your body as possible.
10/98
Advertisement
