Smarter tools ARC-100S Manual Del Usario página 37

enclosing the Welding 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 Trouble-some.
B. Assessment of Area
Before installing welding equipment, the user shall make an assessment of
potential electromagnetic problems in the surrounding area. The following shall
be taken into account.
1. Other supply cables, control cables, signaling and telephone cables; above,
below and adjacent to the welding equipment.
2. Radio and television transmitters and receivers.
3. Computer and other control equipment.
4. Safety critical equipment, e.g. guarding of industrial equipment.
5. The health of people around, e.g. the use of pace-makers and hearing aids.
6. Equipment used for calibration and measurement.
7. The time of day that welding or other activities are to be carried out.
8. 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 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.
C. Methods of Reducing Electromagnetic Emissions
1. Mains Supply
Welding 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 welding equipment in metallic conduit or equivalent. Shielding should
be electrically continuous throughout its length. The shielding should be
connected to the Welding Power Source so that good electrical contact is
maintained between the conduit and the Welding Power Source enclosure.
2. Maintenance of Welding Equipment
3-4