Lincoln Electric FineLine 12864 Operator's Manual page 116

FineLine 300HD Plasma System
A.3 Assessment of Area
Before installing plasma cutting equipment, the user shall make an assessment of
potential electromagnetic problems in the surrounding area. The following shall be
taken into account:
• other supply cables, control cables, signaling and telephone cables; above, below
and adjacent to the plasma cutting equipment;
• radio and television transmitters and receivers;
• computer and other control equipment;
• safety critical equipment, e.g. guarding of industrial equipment;
• the health of the people around, e.g. the use of pacemakers and hearing aids;
• equipment used for calibration or measurement;
• the immunity of other equipment in the environment; the user shall ensure that
other equipment being used in the environment is compatible; this may require
additional protection measures;
• the time of day that plasma 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.
A.4 Methods of Reducing Emissions
A.4.1 Mains Supply
Plasma cutting equipment should 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. Consideration should be
given to shielding the supply cable of permanently installed plasma cutting
equipment in metallic conduit or equivalent. Shielding should be electrically
continuous throughout its length. The shielding should be connected to the plasma
power source so that good electrical contact is maintained between the conduit and
the plasma power source enclosure.
A.4.2 Maintenance of the Plasma Cutting Equipment
The plasma cutting equipment should be routinely maintained according to the
manufacturer's recommendations. All access and service doors and covers should
be closed and properly fastened when the plasma cutting equipment is in operation.
The plasma cutting equipment should not be modified in any way except for those
changes and adjustments covered in the manufacturer's instructions.
This information is subject to the controls of the Export Administration Regulations [EAR]. This information shall not be provided to
non-U.S. persons or transferred by any means to any location outside the United States contrary to the requirements of the EAR.
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BK8053-000107 Rev A.01