Hypertherm 80669C Rev.2 - Manual (Page 6)

SC-6 Safety and Compliance
English
Safety
RESPONSIBILITY FOR SAFETY
The person or entity responsible for the safety of the workplace must:
• Make sure that operators and their supervisors are trained in the safe
use of their equipment, the safe use of the process, and emergency
procedures.
• Make sure that all hazards and safety precautions identified herein
are communicated to and understood by workers before the start of
work.
• Designate approved cutting areas and establish procedures for safe
cutting.
• Be responsible for authorizing cutting operations in areas not
specifically designed or approved for such processes.
• Make sure that only approved equipment, such as torches and
personal protective equipment, are used.
• Select contractors who provide trained and qualified personnel, and
who have awareness of the risks involved, to do cutting.
• Tell contractors about flammable materials or hazardous conditions
that are specific to the site, or hazardous conditions that they may not
be aware of.
• Make sure that the quality and quantity of air for ventilation is such
that personnel exposures to hazardous contaminants are below the
allowable limits.
• Make sure that ventilation in confined spaces is sufficient to allow
adequate oxygen for life support, to prevent accumulation of
asphixiants or flammable explosive mixtures, to prevent
oxygen-enriched atmospheres, and to keep airborne contaminants in
breathing atmospheres below allowable limits.
A PLASMA ARC CAN DAMAGE FROZEN PIPES
Frozen pipes may be damaged or can burst if you attempt to thaw them with a plasma torch.
STATIC ELECTRICITY CAN DAMAGE PRINTED CIRCUIT BOARDS
Use proper precautions when handling printed circuit boards:
• Store printed circuit boards in anti-static containers.
• Wear a grounded wrist strap when handling printed circuit boards.
GROUNDING SAFETY
Work lead Attach the work lead securely to the workpiece or the
cutting table with good metal-to-metal contact. Do not connect it to
the piece that will fall away when the cut is complete.
Cutting table Connect the cutting table to an earth ground, in
accordance with appropriate national and local electrical regulations.
Input power
• Make sure to connect the power cord ground wire to the ground in
the disconnect box.
• If installation of the plasma system involves connecting the power
cord to the power supply, make sure to connect the power cord
ground wire properly.
• Place the power cord’s ground wire on the stud first, then place any
other ground wires on top of the power cord ground. Tighten the
retaining nut.
• Tighten all electrical connections to avoid excessive heating.
ELECTRICAL HAZARDS
• Only trained and authorized personnel may open this equipment.
• If the equipment is permanently connected, turn it off, and lock
out/tag out power before the enclosure is opened.
• If power is supplied to the equipment with a cord, unplug the unit
before the enclosure is opened.
• Lockable disconnects or lockable plug covers must be provided by
others.
• Wait 5 minutes after removal of power before entering the enclosure
to allow stored energy to discharge.
• If the equipment must have power when the enclosure is open for
servicing, arc flash explosion hazards may exist. Follow all local
requirements (NFPA 70E in the USA) for safe work practices and for
personal protective equipment when servicing energized equipment.
• Prior to operating the equipment after moving, opening, or servicing,
make sure to close the enclosure and make sure that there is proper
earth ground continuity to the enclosure.
• Always follow these instructions for disconnecting power before
inspecting or changing torch consumable parts.