OM-221 022 Page 4
1-5. Principal Safety Standards
1-6. EMF Information
Safety in Welding, Cutting, and Allied Processes, ANSI Standard
Z49.1, from American Welding Society, 550 N.W. LeJeune Rd, Miami
FL 33126 (phone: 305-443-9353, website: www.aws.org).
Recommended Safe Practices for the Preparation for Welding and
Cutting of Containers and Piping, American Welding Society
Standard AWS F4.1, from American Welding Society, 550 N.W.
LeJeune Rd, Miami, FL 33126 (phone: 305-443-9353, website:
www.aws.org).
National Electrical Code, NFPA Standard 70, from National Fire
Protection Association, P.O. Box 9101, 1 Battery March Park,
Quincy, MA 02269-9101 (phone:
617-770-3000, website:
www.nfpa.org and www. sparky.org).
Safe Handling of Compressed Gases in Cylinders, CGA Pamphlet
P-1, from Compressed Gas Association, 1735 Jefferson Davis
Highway, Suite 1004, Arlington, VA 22202-4102 (phone: 703-412-
0900, website: www.cganet.com).
Code for Safety in Welding and Cutting, CSA Standard W117.2, from
Canadian Standards Association, Standards Sales, 178 Rexdale
Boulevard, Rexdale, Ontario, Canada M9W 1R3 (phone: 800-463-
6727 or in Toronto 416-747-4044, website:
www.
csa-
international.org).
Practice For Occupational And Educational Eye And Face
Protection, ANSI Standard Z87.1, from American National
Standards Institute, 11 West 42nd Street, New York, NY 10036-8002
(phone: 212-642-4900, website: www.ansi.org).
Standard for Fire Prevention During Welding, Cutting, and Other Hot
Work, NFPA Standard 51B, from National Fire Protection
Association, P.O. Box 9101, 1 Battery March Park, Quincy, MA
02269-9101 (phone: 617-770-3000, website: www. nfpa.org and
www. sparky.org).
OSHA, Occupational Safety and Health Standards for General
Industry, Title 29, Code of Federal Regulations (CFR), Part 1910,
Subpart Q, and Part 1926, Subpart J, from U.S. Government Printing
Office, Superintendent of Documents, P.O. Box 371954, Pittsburgh,
PA 15250 (there are 10 Regional Offices–phone for Region 5,
Chicago, is 312-353-2220, website: www.osha.gov).
Considerations About Welding And The Effects Of Low Frequency
Electric And Magnetic Fields
Welding current, as it flows through welding cables, will cause elec-
tromagnetic fields. There has been and still is some concern about
such fields. However, after examining more than 500 studies span-
ning 17 years of research, a special blue ribbon committee of the
National Research Council concluded that: “The body of evidence, in
the committee’s judgment, has not demonstrated that exposure to
power-frequency electric and magnetic fields is a human-health haz-
ard.” However, studies are still going forth and evidence continues to
be examined. Until the final conclusions of the research are reached,
you may wish to minimize your exposure to electromagnetic fields
when welding or cutting.
To reduce magnetic fields in the workplace, use the following proce-
dures:
1. Keep cables close together by twisting or taping them.
2. Arrange cables to one side and away from the operator.
3. Do not coil or drape cables around your body.
4. Keep welding power source and cables as far away from opera-
tor as practical.
5. Connect work clamp to workpiece as close to the weld as possi-
ble.
About Pacemakers:
Pacemaker wearers consult your doctor first. If cleared by your doc-
tor, then following the above procedures is recommended.
Summary of Contents for MIGHT High Power TIG 150
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