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ELECTRIC AND MAGNETIC FIELDS
May be dangerous. Electric current flowing through any conductor causes localized Electric and Magnetic
Fields (EMF). Welding and cutting current creates EMF around welding cables and welding machines.
Therefore:
1.
Welders having pacemakers should consult their physician before welding. EMF may interfere with some pacemakers.
2.
Exposure to EMF may have other health effects which are unknown.
3.
Welders should use the following procedures to minimize 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.
FUMES AND GASES
Fumes and gases, can cause discomfort or harm, particularly in confined spaces. Do not breathe fumes and
gases. Shielding gases can cause asphyxiation.
Therfore:
1.
Always provide adequate ventilation in the work area by natural or mechanical means. Do not weld, cut or gouge on materials
such as galvanized steel, stainless steel, cooper, zinc, lead beryllium or cadmium unless positive mechanical ventilation is
provided. Do not breathe fumes from these materials.
2.
Do not operate near degreasing and spraying operations. The heat or arc can react with chlorinated hydrocarbon vapors to form
phosgene, a highly toxic gas and other irritant gases.
3.
If you develop momentary eye, nose or throat irritation while operating, this is an indication that ventilation is not adequate. Stop
work and take necessary steps to improve ventilation in the work area. Do not continue to operate if physical discomfort persists.
4.
Refer to ANSI/ASC Standard Z49.1 (see listing below) for specific ventilation recommendations.
5.
WARNING: This product when used for welding or cutting, produces fumes or gases which contain chemicals known to the State
of Californa to cause birth defects and in some cases cancer (California Health & Safety Code §25249.5 et seq.)
CYLINDER HANDLING
Cylinders, if mishandled, can rupture and violently release gas. Sudden rupture of cylinder valve or relief
device can injure or kill.
Therefore:
1.
Use the proper gas for the process and use the proper pressure reducing regulator designed to operate from the compressed gas
cylinder. Do not use adaptors. Maintain hoses and fittings in good condition. Follow manufacturer's operating instructions for
mounting regulator to a compressed gas cylinder.
2.
Always secure cylinders in an upright position by chain or strap to suitable hand trucks, undercarriages, benches, wall, post or
racks. Never secure cylinders to work tables or fixtures where they may become part of an electrical circuit.
3.
When not in use, keep cylinder valves closed. Have valve protection cap in place if regulator is not connected. Secure and move
cylinders by using suitable hand trucks.
4.
Locate cylinders away from heat, sparks and flames. Never strike an arc on a cylinder.
5.
For additional information, refer to CGA Standard P- -1, "Precations for Safe Handling of Comporessed Gases in Cylinders", which
is available from Compressed Gas Association, 1235 Jefferson Davis Highway, Arlington, VA 22202.
EQUIPMENT MAINTENANCE
Faulty or improperly maintained equipment can cause injury or death. Therefore:
1.
Always have qualified personnel perform the installaion, troubleshooting and maintenance work. Do not perform any electrical
work unless you are qualified to perform such work.
2.
Before performing any maintenance work inside a power source, disconnect the power source from the incoming electrical power.
3.
Maintain cables, grounding wire, connections, power cord and power supply in safe working order. Do not operate any equipment
in faulty condition.
4.
Do not abuse any equipment or accessories. Keep equipment away from heat sources such as furnaces, wet conditions such as
water puddles, oil or grease, corrosive atmospheres and inclement weather.
5.
Keep all safety devices and cabinet covers in position and in good repair.
6.
Use equipment only for its intended purpose. Do not modify it in any manner.
safetya
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