Hypertherm HSD130 HySpeed Plasma - Manual (Page 22)

1-8 Hypertherm
SAFETY
03/10
NOISE CAN DAMAGE HEARING
Pacemaker and hearing aid operation can be affected by
magnetic fields from high currents.
Pacemaker and hearing aid wearers should consult a
doctor before going near any plasma arc cutting and
gouging operations.
To reduce magnetic field hazards:
• Keep both the work cable and the torch lead to one
side, away from your body.
• Route the torch leads as close as possible to the
work cable.
PACEMAKER AND HEARING AID OPERATION
Cutting with a plasma arc can exceed acceptable noise
levels as defined by local codes in many applications.
Prolonged exposure to excessive noise can damage
hearing. Always wear proper ear protection when cutting
or gouging, unless sound pressure level measurements
taken at the installed site have verified personal hearing
protection is not necessary per relevant international,
regional, and local codes.
Significant noise reduction can be obtained by adding
simple engineering controls to cutting tables such as
barriers or curtains positioned between the plasma arc
and the workstation; and/or locating the workstation
away from the plasma arc. Implement administrative
controls in the workplace to restrict access, limit
operator exposure time, screen off noisy working areas
and/or take measures to reduce reverberation in working
areas by putting up noise absorbers.
Use ear protectors if the noise is disruptive or if there
is a risk of hearing damage after all other engineering
and administrative controls have been implemented.
If hearing protection is required, wear only approved
personal protective devices such as ear muffs or ear
plugs with a noise reduction rating appropriate for the
situation. Warn others in the area of possible noise
hazards. In addition, ear protection can prevent hot
splatter from entering the ear.
Frozen pipes may be damaged or can burst if you attempt to thaw them with a plasma torch.
A PLASMA ARC CAN DAMAGE FROZEN PIPES
• Do not wrap or drape the torch lead or work cable
around your body.
• Keep as far away from the power supply as possible.