Hypertherm HSD130 HySpeed Plasma - Manual (Page 18)

1-4 Hypertherm
SAFETY
03/10
Fire prevention
• Be sure the area is safe before doing any cutting.
Keep a fire extinguisher nearby.
• Remove all flammables within 35 feet (10 m) of the
cutting area.
• Quench hot metal or allow it to cool before handling
or before letting it touch combustible materials.
• Never cut containers with potentially flammable
materials inside – they must be emptied and
properly cleaned first.
• Ventilate potentially flammable atmospheres
before cutting.
• When cutting with oxygen as the plasma gas, an
exhaust ventilation system is required.
Explosion prevention
• Do not use the plasma system if explosive dust or
vapors may be present.
• Do not cut pressurized cylinders, pipes, or any
closed container.
• Do not cut containers that have held combustible
materials.
CUTTING CAN CAUSE FIRE OR EXPLOSION
WARNING
Explosion Hazard
Argon-Hydrogen and Methane
Hydrogen and methane are flammable gases that
present an explosion hazard. Keep flames away from
cylinders and hoses that contain methane or hydrogen
mixtures. Keep flames and sparks away from the torch
when using methane or argon-hydrogen plasma.
WARNING
Explosion Hazard
Underwater Cutting with Fuel Gases
• Do not cut aluminum underwater or with water
touching the underside of the aluminum.
• Cutting aluminum underwater or with the water
touching the underside of the aluminum can result
in an explosive condition that can detonate during
plasma cutting operations.
WARNING
Hydrogen Detonation with
Aluminum Cutting
• Do not cut under water with fuel gases containing
hydrogen.
• Cutting under water with fuel gases containing
hydrogen can result in an explosive condition that can
detonate during plasma cutting operations.