Hypertherm HSD130 HySpeed Plasma - Manual (Page 5)

Compliance Information EMC-1
7/10
ELECTROMAGNETIC COMPATIBILITY (EMC)
Introduction
Hypertherm’s CE-marked equipment is built in
compliance with standard EN60974-10. The equipment
should be installed and used in accordance with
the information below to achieve electromagnetic
compatibility.
The limits required by EN60974-10 may not be
adequate to completely eliminate interference when the
affected equipment is in close proximity or has a high
degree of sensitivity. In such cases it may be necessary
to use other measures to further reduce interference.
This cutting equipment is designed for use only in an
industrial environment.
Installation and use
The user is responsible for installing and using the
plasma equipment according to the manufacturer’s
instructions.
If electromagnetic disturbances are detected then it shall
be the responsibility of the user to resolve the situation
with the technical assistance of the manufacturer. In
some cases this remedial action may be as simple
as earthing the cutting circuit, see Earthing of the
work piece. In other cases, it could involve constructing
an electromagnetic screen enclosing the power source
and the work complete with associated input filters. In all
cases, electromagnetic disturbances must be reduced to
the point where they are no longer troublesome.
Assessment of area
Before installing the equipment, the user shall make an
assessment of potential electromagnetic problems in
the surrounding area. The following shall be taken into
account:
a. Other supply cables, control cables, signaling and
telephone cables; above, below and adjacent to the
cutting equipment.
b. Radio and television transmitters and receivers.
c. Computer and other control equipment.
d. Safety critical equipment, for example guarding of
industrial equipment.
e. Health of the people around, for example the use of
pacemakers and hearing aids.
f. Equipment used for calibration or measurement.
g. Immunity of other equipment in the environment. User
shall ensure that other equipment being used in the
environment is compatible. This may require additional
protection measures.
h. Time of day that cutting or other activities are to be
carried out.
The size of the surrounding area to be considered
will depend on the structure of the building and other
activities that are taking place. The surrounding area
may extend beyond the boundaries of the premises.
Methods of reducing emissions
Mains supply
Cutting equipment must be connected to the
mains supply according to the manufacturer’s
recommendations. If interference occurs, it may be
necessary to take additional precautions such as filtering
of the mains supply.