Powerfist CUTPRO 20 Mode D'emploi page 8

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2. A combustible floor should be protected with a fire resistant covering.
Alternatives are to spray the floor with water to keep it wet for the duration
of the welding or cover with damp sand. Care must also be taken to avoid an
electric shock when this is done. A combustible floor directly laid onto
concrete does not need to be sprayed with water.
3. Check that there are no structural openings or cracks that hot debris can
enter. Seal any openings found with a fire-resistant cover. Shut doors and
windows that do not provide ventilation or erect protective screens in
front of them when possible.
4. Avoid welding near hydraulic lines or containers containing flammable
contents.
5. Do not perform any welding work on containers that held flammable or
toxic substance until they are cleaned by a person trained in removing
toxic and flammable substances and vapours per the American Welding
Standard AWS F4.1.
6. Open a container before performing any welding work on it. The heat
generated by the welding process will cause the air and gases to expand.
The internal pressure may cause a sealed or closed container to rupture,
possibly causing an injury or death.
7. Do not weld pipes or metal that are covered in combustible material or in
contact with combustible structure such as a wall. Only weld if the
covering can be safely removed.
a. Follow all safety precautions and legal requirements before welding a
workpiece that contains Asbestos or attempting to remove the
Asbestos covering. This requires expert knowledge and equipment.
b. Molten slag can run down the inside and outside of a pipe and start a
fire. Be aware where the pipe terminates and take precautions.
8. Do not weld a panel that is a sandwich construction of combustible and
metal materials.
9. Have a fire extinguisher available for immediate use. A dry chemical fire
extinguisher for Types A, B and C is suggested.
a. Welding a combustible metal like zinc, magnesium or titanium
requires a Type D fire extinguisher.
b. Do not use liquid based fire extinguishing methods near the electric
plasma cutter, as it may cause a shock hazard.
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20A Plasma Cutter
For technical questions call 1-800-665-8685
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