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The welding machine is designed according to the relevant norms and rules. However, it may still
cause problems for the telecommunication equipment (telephone, radio, television etc.) and
safety devices susceptible to the electromagnetic fields as it generates electromagnetic waves. In
order to reduce the effects of the electromagnetic waves (interference) generated by the machine,
please read the following carefully.
The welding machine is designed for operating in industrial areas. If it is used in residential areas, certain
measures have to be taken in order to eliminate the possible effects of the electromagnetic waves.
Installation and Use:
General:
The user is responsible for installing and using the arc cutting equipment according to the
manufacturer’s instructions. If electromagnetic disturbances are detected, then it shall be the
responsibility of the user of the arc cutting equipment 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 note). In other cases, it could involve constructing an electromagnetic screen
enclosing the cutting power source and the work complete with associated input filters. In all cases
electromagnetic disturbances shall be reduced to the point where they are no longer troublesome.
Note:
The practice for earthing the cutting circuit is dependent on local safety regulations.
Changing the earthing arrangements to improve EMC can affect the risk of injury or equipment
damage. Further guidance is given in IEC 60974-9.
Assessment of Area:
Before installing arc welding 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, signalling and telephone cables, above, below and
adjacent to the plasma 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) the health of the people around, for example the use of pacemakers and hearing aids,
f) equipment used for calibration or measurement,
g) 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,
h) the time of day that cutting or other activities are to be carried out.
• Do not switch on-off machine during welding. This may cause fluctuations in the mains
voltage and shorten the service life of the machine.
• Wait for approximately 5-10 seconds after turning on the power unit to stabilize the
machine, then start welding.
• This Class-A equipment is not intended for use in residential locations where the electrical
power is provided by the public low-voltage supply system. There can be potential
difficulties in ensuring electromagnetic compatibility in those locations, due to conducted
as well as radiated radio-frequency disturbances.
Designed according to the EN 60974-1
The EMU class of the machine according to EN 55011 is Group-2, Class-A.
Please see EN 60974-10 for detailed information.
Electromagnetic Compliance - 1
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Содержание 315-TIG Pulse
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